AMD RX 5700(XT) first evaluation： 7nm RDNA architecture has been greatly transformed, and the price has been reduced since the first launch, and players have answered Yes.

　　[PConline’s first evaluation] It took three years to repair, three years to change, and three years to sew and mend. This may be the biggest impression that AMD graphics cards have given people in recent years. This is also the case. AMD has been polishing the GCN architecture since it launched the first generation GCN architecture graphics card HD 7950 in 2012, and has now developed to the fifth generation GCN 5.0 represented by RX VEGA 64. GCN architecture was indeed a very advanced and forward-looking architecture at that time. It took into account both games and high-performance computing, which enabled AMD to make multi-purpose graphics cards with one core in recent years, which perfectly met AMD’s needs of diligence and thrift, but comprehensiveness also meant that it could not specialize. NVIDIA has been developing and launching an architecture for games in recent years, and the latest Turing architecture has also played a fancy role in GCN 5.0

　　Navi graphics card is a product launched under this background. It adopts AMD’s new secret weapon, the successor of GCN seven years after its birth.RDNA architecturePlus leading the opponent’s7nm process,Double upgrade of process architectureAMD is also very confident about the product, and the product slogan is"Changing the rules of the game"There is a great intention to kill NVIDIA, so can the RX 5700 XT/RX 5700, the vanguard of Navi graphics cards, live up to expectations? Let’s let PConline Jia xiaobian bring you a comprehensive evaluation of AMD’s new graphics card ~

　　The new graphics card has a new look. This A card is not a vest, which is particularly fresh. So what’s the difference?

▍　New architecture RDNA

　　As mentioned earlier, Navi uses AMD’s new graphics card architecture RDNA, which is designed by AMD for games. In the past, GCN will not be retired, but will strengthen high-performance computing and develop in the direction of computing cards.

　　Compared with the previous graphics card, the IPC (same frequency performance) of RDNA is improved by 14%, and the power consumption of the same performance is reduced by 23%.

▍　New process 7nm process

　　In the process technology of new products, AMD abandoned its long-term partner Grofonde and chose to cooperate with TSMC, which is much more reliable. However, in fact, the first 7nm game graphics card was released as early as February this year. At present, AMD’s flagship graphics card Radeon VII.

　　Thanks to 7nm process and new chip design, the core area of Navi GPU is only half that of Vega 64 GPU. Under the same GPU area, the performance can be 130% stronger than the previous generation.

▍　New memory GDDR6

　　RX 5700 series graphics card is also AMD’s first graphics card using GDDR6 video memory.

　　A very important constraint factor that determines the performance of a graphics card is the video memory bandwidth, which is equal to the equivalent frequency of video memory x the bit width of video memory /8. Obviously, there are two ways to improve the video memory bandwidth, one is to increase the bit width, which is the method used by HBM video memory, and the other is to increase the video memory frequency, which is the evolution direction of traditional GDDR video memory.

　　This time, the RX 5700 series graphics card uses GDDR6 video memory. Compared with HBM2 video memory of Radeon VII, it generates more heat, but the cost is lower, which is also in line with the non-flagship positioning of graphics cards. The equivalent memory frequency of RX 5700 series graphics cards is 14000MHz, which is 75% higher than that of GDDR5, and the memory bandwidth also reaches 448 GB/s.

▍　New PCIe 4.0 support

　　AMD is actively promoting the new PCIe 4.0 bus in recent days, and all new products begin to support new standards without exception, including graphics cards such as RX 5700 XT. PCIe 4.0 has a bandwidth of 16GT/s, which is twice as large as PCIe 3.0, and better supports 8K video playback clips.

　　In addition to the above three new features, Navi graphics cards also have many such as ANTI-LAG.、FIdelityFX, Image Sharpening and many other black technologies to improve the game experience, but Xiaobian also knows that everyone wants to see the actual game performance of the graphics card faster, so we will write another article on the detailed analysis of the black technology of the new graphics card, and interested viewers can jump to the following link to watch.

Analysis of AMD 7nm Navi graphics card technology: a new architecture of RDNA in a timely manner
https://diy.pconline.com.cn/1273/12739809.html
　

　　Let’s analyze the detailed parameters of the graphics card.

　　Graphics card parameter comments:Comparing the flagship A cards of these two generations horizontally, there are still many highlights of the new graphics card. Let’s analyze them one by one.

　　First of all, the graphics card architecture has changed, and the benefits brought by the architecture change are obvious. For example, the RX 5700 XT has only 2560 stream processors.There are only 2304 RX 5700 like RX 580., 1024~1536 fewer than RX VEGA 56, but at the press conference, the performance of the two new graphics cards were suspended from RX VEGA 56, indicating thatThe efficiency of the new architecture is indeed not small..

　　The new architecture alsoBOOST mechanism that optimizes the frequency of graphics card.Compared with the past, it has changed a lot, which is also the most interesting place.The frequency of the new graphics card is divided into three states.respectively areBase frequency Base Clock, the lowest frequency when the graphics card is in any state; Game frequency Game Clock, the lowest frequency of video card game;Acceleration frequency Boost Clock, the highest frequency that the graphics card can achieve under low load or good heat dissipation. And many readers should be able to see it, and there are all these frequencies."above"This qualifier, because the Navi graphics card will be dynamically accelerated in real time according to the temperature and power consumption, gives Xiaobian the feeling that it refers to NVIDIA’s graphics card BOOST mechanism, which is not as rigid as before, and the performance of the graphics card has also been fully exerted.

　　After using the lower-cost GDDR6 memory, it is also 8GB memory, and the bandwidth of the new graphics card has reached 448 GB/s.Only 8% less than RX VEGA 64.Another thing worthy of praise is that it is cheaper.RX 5700 also retains 8GB of video memory.You don’t have to worry about the explosion of video memory when playing games at 2K resolution.

　　In terms of TDP, the TDP of RX 5700 XT is 225W, and that of RX 5700 is 185W, which is fairly normal, a little higher than that of RTX 2070/RTX 2060, but in fact, power consumption has never been a problem. A card is criticized for its low energy consumption ratio, which makes it do less for the same electricity, but the actual power consumption of graphics cards needs to be measured, so let’s look forward to it first.

　　Finally, there is the price. Everyone knows that the official price of AMD was RX 5700 XT for 3,599 yuan and RX 5700 for 2,999 yuan. However, in just one week, Lao Huangyong had already prepared Super to use the big core to reduce the dimension of AMD. The opponents of the new card changed from RTX 2070 and RTX 2060 to RTX 2070 Super and RTX 2060 Super, which AMD never expected.

　　But nothing can’t be solved by price reduction. If there is, it will be reduced a little ~ Just yesterday AMD officially announced the price reduction of RX 5700 series, RX 5700 XT will be reduced by 500 yuan as long as 3099 yuan, and RX 5700 will be reduced by 2699 yuan in 300 yuan. If the new card can withstand the performance of 2070 and 2060 according to AMD PPT, the price is really fragrant ~

　　Can Card A turn over this time? Keep looking down.

　　AMD’s public version has returned to the previous turbo mode. Unlike Radeon VII, the color scheme is still AMD, but the shapes of the two graphics cards are still different. Let’s look at them one by one.

▍　RX 5700 XT map appreciation

　　The color matching of the box of the graphics card is also mainly black and red, which is very AMD’s color matching. The opening mode of the outer packaging is different from that of the general box. There is a frame wrapped outside, which is very ceremonial, and the graphics card inside is vertical.

　　RX 5700 XT uses a turbine to dissipate heat, and the shell is made of metal and covered with stripes.

　　The strange shape of the graphics card has been vomited by many people, such as being forcibly distorted, and it looks good if it is not real.

　　There will be a Radeon belief light at the top of the graphics card. In fact, this is the only place where the whole graphics card will shine.

　　The backplane, which symbolizes the status of high-end graphics card, can assist the PCB board to dissipate heat and make the graphics card more integrated.

　　Output interface. Three DP1.4 interfaces and one HDMI 2.0b interface support 8K 60Hz HDR or 4K 144Hz HDR output, which is enough for most consumers, and most people only use two at most.

　　Design of 8+6Pin external power supply port.

　　I found that the whole graphics card is still very textured, which is in line with the positioning of high-end graphics cards.

▍　RX 5700 map reward

　　The box of RX 5700 is very ceremonial, but it is more like a general box, and the graphics card is flat.

　　The graphics card shape of RX 5700 is the same as the previous RX 480 public version, with a square shape, but the color scheme has changed from red and black to gray and black.

　　However, the LOGO on the top of the graphics card will not shine.

　　Unfortunately, the graphics card does not have a backplane.

　　Although the TDP and frequency of RX 5700 are low, it still uses the external power supply design of 6+8Pin, which may have overclocking potential.

　　Same 3DP 1.4 and 1HDMI 2.0b interface design.

　　To tell the truth, the appearance of these two graphics cards is still very simple and looks very comfortable. It depends on whether they are embroidered pillows. Just get on the plane.

　　Briefly introduce the platform of this evaluation.

　　In order to ensure that other accessories such as CPU and memory will not become bottlenecks in the test platform, we all use the top accessories at present, such as CPU i9-9900K, which is the strongest player in games at present, and 3200MHz high-frequency memory chips.

　　On the contrast graphics card, we also choose as many models as possible. On the N card, in addition to the original rival RTX 2070/RTX 2060 of RX 5700 XT/RX 5700, there is also the Navi killer RTX 2070Super/RTX 2060Super of Lao Huang. As for the A card, we chose the current flagship Radeon VII, the previous generation flagship RX VEGA 64 and the best RX VEGA 56 sold by the previous generation high-end A card to see how much progress the new graphics card has made.

　　All the above graphics cards except RX VEGA 56 are in public version.The RTX 20 series graphics card of the public version will have a higher frequency than the beggar version, and Dylan RX VEGA 56 Ares will also have a better heat dissipation than the public version, but the performance will not be much stronger.

　　Followed by the exciting measured link.

　　The theoretical performance test is still the same, using the world’s most fun game 3DMark to test, and three test scenarios are selected, namely the most widely used Fire Strike Extreme, Fire Strike Ultra, which can best test the performance of 4K resolution graphics cards, and Time Spy for DX 12 benchmark performance test of game PC.In order to make the comparison between RX 5700 and its direct competitor RTX 2060/RTX 2060 Super more intuitive, we put all the competitors together, and so does RX 5700 XT.

　　Summary of theoretical performance testIf there is one word to describe the running performance of these two new graphics cards, I will definitely use it.pleasant surpriseThis word, big brother RX 5700 XT, is tested in traditional FSE and FSU.It’s evenLao Huang’s secret killer RTX 2070 Super, a graphics card cut from RTX 2080, is more than the previous generation flagship RX VEGA 64.Is ahead by 18%, only from the flagship Radeon VII.9%The gap. The younger brother RX 5700 is also unwilling to lag behind, leading in FSE and FSU with the same specification of 2304 stream processors as RX 580.RTX 2060 Super is about 4%, also significantly.It is about 18% ahead of RX VEGA 56.

　　The RDNA architecture is the same as the new NV architecture.Greatly enhanced DX 12 performance., testing the performance of DX 12TS running pointsThe RX 5700 XT is only 132 points less than Radeon VII.About 1.5%The gap, substantially26% ahead of RX VEGA 64 26%! However, the performance enhancement of graphics card DX 12 is not as radical as Turing architecture, 5700XT.There is still a gap of about 4% compared with 2070, and the gap from 2070 Super is 17%.The situation of RX 5700′ s comparative competitors is similar.

　　Based on the three tests, 5700 XT is about 7% ahead of 2070, 5% behind 2070 Super and 9% behind Radeon VII. 5700 is flat, 2060 Super is 18% ahead of 2060, and it is also about 6% stronger than RX VEGA 64.

　　Of course, if the theoretical performance test can fully reflect the actual performance of the graphics card, then why do you need to measure the game? Let’s use 9 popular masterpieces selected by Xiaobian to conduct a comprehensive test of up to 284 scenes on these 9 graphics cards with three resolutions. The games are mainly based on the latest, hottest and most popular games, such as Jedi Survival and Total War Three Kingdoms, which are very representative.

1. Assassin’s Creed: Odyssey

　　The latest work of Assassin’s Creed series, with exquisite picture quality, reflects the original ancient Greece, and is simply a graphics card killer. The game comes with BenchMark.

2. Strange Squad

　　Native support for DX 12 games was demonstrated by AMD at the RX 5700 conference. The evaluation naturally cannot be absent, and the game comes with BenchMark.

3. Resident Evil 2: Remastered Edition

　　Capcom’s most successful fried cold rice in recent years has sold more than 3 million a week, and the test scene is the gas station scene at the beginning of Lyon.

4. "Wizard 3"

　　Super classic masterpiece, needless to say, the test scene is riding in the wild.

5. "Singularity Ash"

　　Microsoft’s personal work to promote DX12 API perfectly supports all the effects of DX12. Benchmark optimization is in place, and it is also very suitable for testing DX12 performance and graphics performance of graphics cards.

6. Survival of the Jedi

　　Record-breaking phenomenal games have led to a wave of computer hardware upgrades. How can the Jedi survive? The test uses video to make a fixed score.

7. Total War: The Three Kingdoms

　　To say that the most popular game recently is the Three Kingdoms War, and this game is also a new generation of graphics card killer, and the game comes with BenchMark.

8. "Whole Territory Blockade 2"

　　The classic FPS game is a sequel, and the response of this game is generally much better than that of the first generation. The game comes with BenchMark.

9. The Devil May Cry 5

　　The latest work of the hardcore ACT game, Ghost Cry 5, is known as the best ACT game in Heisei period, and there are small-scale fighting scenes during the test.

　　Summary of game measurement:After the rigorous test of 9 popular masterpieces, let’s comment on the test performance first.

　　First, the new graphics card adopts a new architecture. Compared with the traditional GCN graphics card, it is different in game optimization. Just like different factions, some games RDNA graphics cards perform very well, while GCN is terrible, such as singularity ashes, while some games GCN perform better, such as strange squad.

　　Secondly, the rivals of Navi’s two new graphics cards at the beginning of research and development are RTX 2060 and RTX 2070. In most games, 5700 and 2060,5700 XT and 2070 are fighting each other, and they can all play inextricably.

　　It is more intuitive to put a chart of performance percentage below. We can get the following three pictures based on the frame number of RTX 2060.

　　At the resolution of 1080p, the tested graphics cards can basically cope with these 3A masterpieces easily.RX 5700 can lead RTX 2060 by 9%.17% ahead of RX Vega 56, but the graphics card is stillAbout 5% behind RTX 2060 Super; RX 5700 XT is even more powerful.Stabilize RTX 2070 with 5% difference., 21% ahead of RX Vega 64, but the graphics card is stillAbout 7% behind RTX 2070 Super6% behind radeon VII.

　　2K resolution should be the main battlefield of these high-performance graphics cards. After all, we spent more than 2,000 yuan on graphics cards not to play games at 1080p. At this resolution, the performance of RX 5700 series graphics cards is not much different from before. RX 5700 is 8% ahead of RTX 2060 and 6% behind RTX 2060 Super. RX 5700 XT is 3% ahead of RTX 2070 and 10% behind RTX 2070 Super.

　　4K resolution can also be regarded as the point where special effects can be played for RX 5700 graphics card. The difference between graphics cards is a little different. Graphics cards with smaller bandwidth, such as RTX 2060, are weaker, while RX 5700 is stronger, while the gap between graphics cards with the same bandwidth is not much different from before.

　　The performance of RX 5700 series graphics cards can still pass the test of game measurement, and all three resolutions are between 2060/2070 and 2060 Super/2070 Super.

　　In addition to performance, power consumption is also a point that everyone is very concerned about. After all, the most hacked A card is that the energy consumption ratio is not good. Can Navi with double upgrade of architecture and technology be improved this time?

　　Since it is impossible to test the power consumption of a piece of hardware alone, the following are all.Power consumption of the whole machineWhen the graphics card is fully loaded, the peak power consumption of the whole machine in the 3DMark stress test is selected, and the peak power consumption of the game is selected under the singularity ash 1080p.

　　The power consumption performance of RX 5700 series graphics cards is really surprising. Compared with the past, it has made great progress. The power consumption of 5700 and 2060 Super is basically the same, which is more than 50 W lower than VEGA 56, and the power consumption of 5700 XT and 2070 Super is basically the same, which is more than 80 W lower than Radeon VII.

　　Did this achievement surprise you?

　　With the more advanced 7nm process,AMD’s new graphics card energy consumption ratio has no obvious gap with NVIDIA.This progress is called the Great Leap Forward.

　　In addition to performance and power consumption, temperature, noise and other aspects still greatly affect the user experience.

▍　3DMARK stress test results:

RX 5700 XT

RX 5700

　　In this test, if the stability exceeds 97%, it is considered as a pass, that is, the core frequency of the graphics card is above the standard for more than 97% of the time, and both graphics cards have easily passed the torture of the 3DMark FSU stress test, and RX 5700 has achieved excellent results of 99.8%, indicating that the stability of the new card is no problem.

　　Click on the picture and we can see that the instantaneous frequency of RX 5700 XT reaches 1941MHz, which is indeed higher than the nominal 1905MHz, while the highest instantaneous frequency of RX 5700 reaches 1729MHz.

　　Among the tested graphics cards, the performance of RX 5700 series is not bad, and the worst is RX VEGA 64, which should be that the frequency is often reduced because of too much fever.

▍　Temperature test

　　During the temperature test, the room temperature was 21 degrees Celsius. In fact, the screenshot just showed the temperature of the graphics card. Although the turbine was used for heat dissipation, the temperature of the graphics card was acceptable, with RX 5700 XT being 78 degrees Celsius and RX 5700 being 76 degrees Celsius.

　▍　Noise test

RX 5700

RX 5700 XT

　　The noise of the radiator in the public version is not excellent, but it is acceptable. The level of 55~57 decibels will be smaller if it is put into the chassis. Users who are sensitive to noise should wait for it.

About noise:

　　0-20 decibels: very quiet, almost imperceptible; 20-40 decibels: quiet, like whispering; 40-60 decibels: general indoor conversation; 60-70 decibels: noisy: harmful to nerves; 70-90 dB: It is noisy and nerve cells are destroyed. 90-100 decibels: increased noise and hearing loss; 100-120 decibels: unbearable, temporarily deaf after staying for one minute. Above 120 decibels: extremely deaf or totally deaf; About 300 dB or above: 20km of people in Fiona Fang are irreparably deaf.

　　To sum up, we can’t talk about performance. We synthesized 9 graphics cards in 9 games, 3 resolutions and 3 theoretical performance tests of 3DMark, and got the following chart. Some netizens may wonder why we should comprehensively score points. After all, the nine games we evaluated may be biased and cannot cover the performance of the graphics card in all games. Therefore, the theoretical performance of the integrated graphics card will be evaluated and the chart will be more comprehensive.

　　On the whole,RX 5700 XT is 5% better than RTX 2070.However, in the face of the dimensionality reduction attack of RTX 2070 Super using TU104 core, it still lost, falling behind by 10%.

　　RX 5700 leads RTX 2060 by 14%,fall behindRTX 2060 Super 3%，The performance of the two is between millimeters.

　　I don’t know if Lao Huang planted undercover inside AMD, or if Lao Huang is a god operator. In short, Lao Huang’s Super chess move is really wonderful ~

　　If the new graphics card is arranged near the PConline graphics card ladder diagram, RX 5700 XT is above RTX 2070 and below GTX 1080 Ti, while RX 5700 is above RX VEGA 64 and below RTX 2070.

▍　The efficiency of the new architecture is gratifying compared with its own progress.

　　Aside from the perspective of the market, the graphics card has really improved a lot compared with the old card in pure technical performance. If you don’t have a concept, I will analyze it in detail below.

　　RX 5700′ s stream processor specification is consistent with RX 580′ s, and so is everyone.2304 stream processors, butThe performance of RX 5700 is close to that of RTX 2060 Supe with 2176 stream processors.R (everyone is GDDR6 memory),The performance of RX 580 can only be compared with that of GTX 1060 with 1280 stream processors.Wrestle the wrist.

　　There are 2560 RX 5700 XT stream processors like GTX 1080. With the support of 7nm and GDDR6 memory, RX 5700 XT hangs GTX 1080 by about 18%. After deducting the addition of these two factors, the efficiency of RDNA architecture is expected to be flat or slightly ahead of Pascal.

　　Of course, although the efficiency of RDNA architecture is greatly improved compared with GCN, it is still not as good as Turing, as can be seen from the performance comparison between RX 5700 and RTX 2070, which are both 2,304 stream processors, and RX 5700 also uses the advanced 0.5-generation 7nm process.

▍　New structure+new technology, the energy consumption ratio has also made great progress.

　　AMD officially claims that RDNA will greatly improve the energy consumption ratio. At present, it has indeed been achieved under the blessing of 7nm. The power consumption of RX 5700 XT is similar to that of RX VEGA 56, even slightly lower, but its performance is 30% ahead.

　　There is no obvious difference in power consumption between RX 5700 series graphics cards and NV Turing graphics cards. RX 5700 XT is more than 30 W higher than RTX 2070, and its performance is 5% stronger, with little difference in energy consumption ratio.

　　However, from a purely technical point of view, Navi can only achieve the energy consumption ratio close to Turing graphics card with more advanced 7nm process blessing. NVIDIA graphics card technology in energy consumption is still in an absolute leading position in power consumption control.

▍　RDNA is satisfactory, and the graphics card market is back to competition.

　　The launch of RDNA graphics card is indeed as remarkable as ZEN, as Ms. Su Zifeng said at the press conference. After evaluating these two graphics cards, we can find that Navi and the first generation Rzyen do have many similarities. Similarly, compared with their own performance, they have made great progress, and the energy consumption ratio has increased by leaps and bounds. Similarly, they can only narrow the gap with their competitors and cannot surpass them.

　　Different from Ryzen, a big reason for Ryzen’s success at that time was to beautifully play the two cards of cost performance and multi-core. The number of the same price cores was twice that of the other party, but Navi did not have this good marketing point. After all, everyone only looked at absolute performance when buying graphics cards.

　　Originally, Xiaobian really wanted to talk about the pricing of the new card. Take RX 5700 as an example. Obviously, it has the same specifications as RX 580, but the price is 1000 yuan more expensive. I hope that with a little better performance than my opponent, the lower price will be like NVIDIA to upgrade consumption, slaughter consumers and make more money.

　　But when NVIDIA released RTX, it had absolute market voice, leading technology and took the initiative. What does AMD have now? None! So Lao Huang came to a Super family, and AMD suddenly became dumbfounded.

　　Fortunately, AMD changed its price two days before its release, using the most traditional and effective way of price reduction. Market competition will not only make Intel and NVIDIA conscience, but also make AMD conscience. Market competition is really a good thing ~

▍　Cost performance is still the biggest highlight of Navi.

　　Although there is no ray tracing and DLSS, these two graphics cards are really fragrant at present.2699 yuan can buy a slightly weaker RTX 2060 Super RX 5700.,You can buy RX 5700 XT stronger than RTX 2070 for 3099 yuan.And RTX 2060 Super costs 3199 yuan, RTX 2070 normal price is 3600 yuan, and RTX 2070 Super costs 3999 yuan. If you are not interested in optical pursuit, Navi graphics card is really a good choice.

　　Moreover, there are various new technologies for graphics cards to make images clearer. We will see if this technology is useful after more games are installed in the future.

　　For NVIDIA, although the Super graphics card has overwhelmed AMD in performance, this time NVIDIA used two cores, TU106 and TU104, to play a core of AMD Navi10.It can be seen that AMD has really brought a lot of troubles to NVIDIA..

　　Ruilong didn’t surpass Core technology until the third generation. Will NVIDIA give Navi this opportunity? Let’s wait and see. In short, the competitive graphics card market is definitely a good thing for our consumers, and the graphics card market has begun to become interesting.

▍　Can RDNA architecture create a new era of GPU for AMD

　　In addition to performance, the biggest highlight of this RDNA architecture is that the energy consumption ratio has also improved, which is a very important big progress for AMD game graphics cards. It is said that there are RX 5800/5900/5600 models with RDNA architecture, etc., but it may not be released until October, which is worth our expectation.

　　How much can these two graphics cards overclock? Let’s test the frequency of video cards. Each video card has a different physique, and we are just trying, so the test is for reference only.

▍　RX 5700 overclocking test

　　The default drive limit of RX 5700 is very dead. After all, everyone knows that AMD’s cutting method is relatively poor. There is really little difference in specifications between RX 5700 and RX 5700 XT, and the gap is even smaller at the same frequency. The maximum overclocking limit of RX 5700 is 1850MHz, which is lower than the default of 5700 XT. The maximum memory can only be pulled down by 14880MHz, and the upper limit of power consumption can only be pulled down by 20%.

　　Without changing the voltage setting, in the end, we can overclock the 3DMark family bucket stably. The setting is that the frequency is pulled down to 1850MHz, and the video memory is over to 14400MHz. At this time, the voltage is 1000mv, and the actual frequency can reach 1849MHz when running the test. After overclocking, the results are as follows.

　　Finally, after overclocking, the performance of the graphics card is improved by 4%, which is better than nothing. The main reason is that the driving limit is too dead. If you want a higher frequency RX 5700, you can only wait for the RX 5700 driver to unlock the upper frequency limit.

　　As the price of overclocking, the power consumption of graphics cards has increased a little, but it is really only a little, with little impact.

▍　RX 5700 XT overclocking test

　　RX 5700 XT has much fewer driving restrictions, which can be opened to 2150MHz at most, the memory frequency can reach 16000MHz, and the upper limit of power consumption can be raised by 50%.

　　Without changing the voltage setting, in the end, we can overclock the 3DMark family bucket stably. The setting is that the frequency is down to 2150MHz, the upper limit of power consumption is full, and the video memory is over to 14640MHz. At this time, the voltage is 1285mv, and the actual running frequency of the video card is about 2100MHz.

　　After overclocking, the performance of graphics card is improved by 5.5%, and the range is ok, which is very close to RTX 2070 Super or GTX 1080 Ti.

　　As the price of overclocking, the power consumption of the graphics card soared by 64W, which is no wonder that the frequency of RX 5700 XT was already very high. If overclocking, the frequency exceeded the energy consumption of the process and the power consumption soared.

　　The performance of RX 5700 series non-public graphics cards is roughly the same.

　　AMD claimed at the press conference that the IPC of RDNA was improved by 14% compared with GCN, so is this actually the case? Let’s have a test.

　　There are 2304 stream processors in RX 5700, which is consistent with RX 590, which makes the test possible. In the test, we limit the frequency of two graphics cards to 1545MHz, and reduce the frequency gap between video and memory as much as possible. Limiting the memory frequency of RX 5700 during driving cannot take effect, while the memory frequency of RX 590 which is the highest and can pass the test stably is 8800MHz. Their slim specifications are as follows.

RX 5700

RX 590

　　The highest frequency that RX 5700 actually runs is only 1529MHz, but there is little difference. Because the video memory bandwidth of the two graphics cards is different, so the test is for reference only, just watch it for fun!

　　Compared with the old card, the new card is really a blind improvement, especially the TS running score, but this is also due to the GDDR6 memory blessing, but it can still be seen that the efficiency of RDNA has improved greatly.

　　RX 5700 series is the first graphics card supporting PCIe 4.0. Let’s use the latest 3DMark PCIe bandwidth test to see how different it is.

　　Different CPU comparisons were used in the test, and the transmission bandwidth of graphics cards supporting PCIe 4.0 is indeed larger, nearly twice that of PCIe 3.0. However, this test has little impact on gamers, and it will only have an impact when 8K video clips are played.

　　A future-oriented technology.

　　The internal materials of AMD public graphics cards are generally OK. Will these two graphics cards be the same?

▍　RX 5700 disassembly

　　Disassemble RX 5700 first.

　　The PCB of the graphics card is fairly regular.

　　The HD Navi 10 core has a very small area.

　　The GDDR6 high-speed memory of the graphics card comes from Samsung, and the public version is made of good materials.

　　7 core power supply to ensure the stable operation of the graphics card.

　　The part where the radiator directly contacts the GPU uses a vacuum cavity vapor chamber, and the heat-conducting medium is the graphene heat-dissipating pad of the same model as Radoen VII, and the parts with memory and power-off are also covered with heat-conducting stickers.

▍　RX 5700 XT disassembly

　　The PCB board of RX 5700 XT is basically the same as RX 5700, but with a little more power supply.

　　Navi 10 core.

　　The power supply is two phases more than RX 5700, a total of eight phases.

　　Memory is also produced by Samsung.

　　The radiator is also made of vacuum cavity vapor chamber+graphene cooling pad+thermal conductive paste.

　　Navi graphics cards on sale this time are all public editions, mainly to see what sales activities and packaging are like.

▍　sapphire

　　The outer packaging of sapphire graphics card is still very beautiful, with scientific and technological style.

　　From now on, if you buy a graphics card sapphire RX 5700 8G/ sapphire RX 5700 XT 8G, you will get a customized USB flash drive with a capacity of 32GB, and the interface type is USB3.0, which is a must.

▍　DeLand

　　Dylan’s outer packaging is as simple as ever.

　　Similarly, the purchase of Dylan RX 5700 8G /RX 5700XT 8G graphics card will give you a special customized USB flash drive with 32G capacity, based on USB3.0 interface, and it will cost 99 yuan if you buy it.