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Experience the AMD RX Radeon 5700 XT: play a lot of games at 2K, higher pulse, less power consumption than before


Radeon 5000 series is much expected by AMD with the new RDNA graphics architecture as well as GPU Navi produced on the first 7nm process, not to mention PCIe 4.0 connectivity. With these technologies, AMD promises to change the appearance of Radeon graphics cards, which are still far behind those of rival Nvidia's solutions. So how strong is the Radeon RX 5000? In this article, I will show you a glimpse of the performance of the Radeon RX 5700 XT version – the most powerful of the Radeon RX 5000 series to date.

The version I borrowed from AMD is Reference Edition (RE) – a reference design similar to the Radeon RX Vega 64 that was rated 2 years ago, currently AMD has not released a Frontier version like the Vega line and I'm not sure if this line will be available, AMD's graphics card partners such as ASUS, MSI, Gigabyte, etc. will all be working with custom versions.




Temporarily called the Radeon RX 5700 XT RE, this year's card is better than the previous generation. The backplate is still made of thick metal, the casing is made of aluminum with very deep etching lines and AMD has a slight twist to make it more stylish than the old reference design which is somewhat boring.



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The side of the card, facing out when plugged into the PCIe slot on the board, will be the glowing Radeon logo along with the red lines that remind people that this is the product of the red team and socket 8 + 6 powered PCIe battery.



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The heat sink still has a fan design with a fan, I personally found this fan to be a bit bigger than the previous Radeon RX Vega 64 RE fan. The airflow is exhausted from the outside, pushed through the built-in heatsink and finally the heat is released on the back of the card. This time on the RX 5000 series, AMD uses steam chamber heatsink – a noticeable upgrade to help the GPU work cooler.



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The top of the card has a cool, unprecedented design on the card of this old AMD with the fan taking the wind for the fan. The rest of the space is mostly for slots that release hot air and 4 output ports with 3 x DisplayPort 1.4 and 1 x HDMI. There is no USB-C DisplayPort port – I love this port because it will increase the usability of USB-C monitors like LG UltraFine.

Navi AMD's new RDNA architecture

Navi is the name of the GPU inside the Radeon RX 5000 series, the version used on the Radeon RX 5700 XT is Navi 10 and the technology highlight is the RDNA graphics architecture.



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RDNA is an alternative graphic architecture for GCN – a graphics architecture used by AMD on its GPU lines from 2012 to the present. Not only used on GPUs for graphics cards playing professional games or graphics cards like the Radeon Instinct series, GCN is also the architecture of the GPU on the Xbox One and PS4 – two very successful gaming consoles of Microsoft and Sony. But GCN architecture has gone through more than 5 generations, typically like the Vega 20 GPU on Radeon VII – although manufactured on a 7nm process, it still uses GCN architecture 5.1. In addition, GCN has not achieved high performance compared to the power it consumes, the GPU is difficult to achieve high clock rate, so the RDNA and 7nm process promise to change this.



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There is one main difference on RDNA and GCN is SIMD (Single Instruction, Multiple Data) system. This is a processor architecture deep within the GPU and can imagine it as a gateway to handle indicator groups which include instructions for processing graphics components called wavefront and former with ants. GCN architecture, AMD exploits Wave64, envisioning 64 threads going through SIMD port. However, SIMD on GCN can only meet 16 passages at a time, ie SIMD16 turns out to handle Wave64 or 64 streams, it has to wait for 4 clock cycles. On RDNA, AMD changed the width of SIMD to 32 ie SIMD32 and exploited wavefront Wave32 so you can imagine 32 streams will be able to go through SIMD port at the same time instead of having to wait for 4 clock cycles like Wave64 . Since then, the performance, power consumption per pulse cycle will be optimized. AMD said that RDNA architecture will improve performance / pulse by 25%.

Combining architectural improvements, multi-layer buffer system changes, clock improvements and 7nm process, RDNA will bring performance / watt 1.5 times higher than GCN 5.0 while digesting less power consumption than 23%. The chip base size is also much smaller than Vega, as Navi 10 only 251 mm2 while the Vega 10 to 495 mm2.



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Radeon RX 5700 XT with Navi 10 has 40 CU> each CU has 64 cores> 2560 Stream processor. Each CU has 4 TMU> 160 TMU with 64 ROP. The Radeon 5700 version without XT will have 36 CU and the Stream multiplier is also less. It is worth noting that although there are not too many Stream multipliers, the number of texture processing units is also less than that of the Vega line, but Navi has a great advantage in clock speed. AMD announced the base pulse of Navi 10 on the Radeon RX 5700 XT at 1605 MHz – higher than the RX Vega 64's Pulse boost level and the maximum pulse level of the Radeon RX 5700 XT can reach 1905 MHz – an unprecedented pulse rate. available on AMD GPUs. In fact, I watched the game, the maximum pulse level was even above 1905 MHz depending on the situation, it was like XFR technology on the Ryzen CPU line. Thus the improvement in clock speed on Navi thanks to the RDNA architecture is very clear.



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The Radeon RX 5700 XT costs $ 399 – $ 50 less than the previously announced price. This price is obviously cheaper than the Radeon RX Vega 64 when it launched just $ 499. One of the factors that makes the Radeon RX 5700 XT cheaper is the use of GDDR6 memory instead of HBM2. On AMD's high-end graphics cards, the company always uses HBM2. This type of memory has a high cost, great bandwidth advantages when the bus width is up to 4096-bits on Radeon VII or 2048-bit on Vega 64 but the disadvantages are clock speed or low memory speed of 4 Gbps. while GDDR6 was 14 Gbps. So with 256-bit bus widths much lower than HBM2, but with the speed advantages, GDDR6 on the Radeon RX 5700 XT still delivers a bandwidth of 448 GB / s, a bit less than the RX Vega bandwidth. 64 is 484 GB / s.



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A new addition to the Radeon RX 5700 XT is that it supports PCIe 4.0 x16 interface. This is the 4th PCIe generation with twice the bandwidth of PCIe 3.0 x16. Currently PCIe 3.0 lanes have 985 MB / s bandwidth each way, PCIe 4.0 will double. So with PCIe 4.0 x16 connection, its bandwidth will be 32 GB / s each way or 64 GB / s 2-way (bi-directional), double PCIe 3.0 x16 with maximum 16 GB / s or 32 GB / s bi-directional. You can imagine simply PCIe 3.0 x16 with bandwidth equivalent to PCIe 4.0 x8. However, to exploit PCIe 4.0 x16 you will need both a new Ryzen 3000 series and an X570 motherboard. Currently GPU is hard to exploit the huge bandwidth of PCIe 3.0 x16, not to mention PCIe 4.0 x16, so I think the bandwidth of PCIe 4.0 will be ideal for those who use multi-GPU CrossFire rather than single GPU.

Benchmark:



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The system we use for benchmarking is still Intel Core i9-9900K to ensure fairness of results between the compared card versions:

  • CPU: Intel Core i9-9900K 8 core 16 threads, running 5 GHz on the whole;
  • MOBO: Gigabyte Aorus Z390 Pro Wi-Fi
  • RAM: 2 x 8 GB DDR4-3600.Skill SniperX
  • SSD: WD Black PCIe 256 GB (OS + Tools)
  • HDD: WD Black 2 TB (Game)
  • PSU: ThermalTake ToughPower 850 W.
  • Screen: ViewSonic VX3276-2K

The 3DMark test got my graphics score and compared to the different versions of the graphics card, you can get a very high Radeon RX 5700 XT, much higher than the GeForce RTX 2060 and slightly lower than RTX 2080 in certain tests. The Radeon RX 5700 XT does very well with DirectX 11, here is the FireStrike test, the FHD or 2K resolution is both high, on par with the RTX 2080 but is exhausted with DirectX 12, namely the Time Spy test with The score difference is much higher than the RTX 2080 and I think it will be closer to 2070.

With the AIDA64 GPU Benchmark, verify the parameters provided by AMD, the FP32 performance of the Radeon RX 5700 XT reaches over 10 TFLOPS while AMD says 9.75 TFLOPS, too rough. : D. As for FP64, the AMD duo in the above table is always superior to Nvidia solutions. Below is the GDDR6 bandwidth and memory speed. Due to the same memory type and the same bus width as the 382 GB / s Radeon RX 5700 XT (Mem Copy finishes reading), it is only lower than the RTX 2080 Ti.

AMD once said the Radeon RX 5700 XT is optimized for 2K games and this is true!

These figures show you a good idea of ​​the capabilities of the Radeon RX 5700 XT, how strong it is and where it is in the current graphics card chart. Now is the actual number on 6 titles I tested. One thing I want to note is that Radeon 5000 series still does not support technologies like Ray Tracing, DLSS like Nvidia.

2 DirectX 11 titles are PUBG and Ghost Recon Wildlands. If you still play PUBG every day, the Radeon RX 5700 XT won't disappoint you the most at 2K resolution, above 100 fps at Ultra graphics settings. I don't have 4K screen to test but 2K with frame over 100 fps is more than enough to get a smooth experience. Similar to Wildlands, 2K Ultra reaches nearly 60 fps and FHD over 60 fps. This is a very heavy game, open world and especially in Ultra resolution, the details of environmental graphics are pushed up very high. I play Wildlands every day, and am satisfied with what the Radeon RX 5700 XT has to offer because it is a 3rd corner game, I play under the team so I'm not too stressful.

Switching to DirectX 12 titles, Nvidia's graphics cards are doing very well when delivering more optimal performance with this API platform, but the Radeon RX 5700 XT shows the opposite. I usually switch to DX12 to get a higher frame rate, but the Radeon RX 5700 XT when switching to DX12 shows a lot of stress. For example, Far Cry New Dawn, the Radeon RX 5700 XT only delivers a frame rate of 45 fps with 2K, Ultra graphics (I've tested it several times, probably because of a new driver) while FHD can only 71 fps, lost to both RTX 2060. Switching to Shadow of the Tomb Raider, things were better, 73 fps at 2K Highest, about 15 fps higher than RTX 2060 and at FHD, Radeon RX 5700 XT brought over 100 frames. fps.

Without missing Battlefield V and Metro Exodus in DX12, Radeon RX 5700 XT for 95 fps frame in the first stage of Normandy with 2K, Ultra graphics (I always choose this game to test the game because it has slippage snow, snow with each small snowflake, night light and lights, trees of all kinds, very suitable for testing all GPUs) and over 120 fps with FHD, Ultra graphics. Surprisingly, Metro Exodus didn't make it difficult to get the Radeon RX 5700 XT when it gave the frame over 90 fps on average at 2K, Ultra.

As such, it is possible to see the title of the game where the Radeon RX 5700 XT will bring a high or low frame rate. AMD once said that the Radeon RX 5700 XT will be for 2K games and this has been proven. Most of the titles I play have reached the frame rate of 60 fps or more with the Radeon Relive Beta driver.

Still power consumption but less than Vega, GPU temperature above 80 degrees C on Reference Edition version:



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Based on what I saw when playing the game, the Radeon RX 5700 XT's pulse is really high, above 1800 MHz and the power consumption of Navi 10 is generally high but compared to Vega it is less than quite good. Power consumption is often seen with the 6 games I play, the DX12 titles always make the Radeon RX 5700 XT eat the most power, from 180 to 185 W, especially DX11 is always under 180 W, such as Ghost Recon Wildlands makes it eat only 160 – 165 W with maximum graphics.



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It should be noted that the Radeon RX 5700 XT will use 8 + 6 PCIe and AMD power batteries, suggesting that the PSU must be 600 W or more.



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The temperature is also optional, but most are over 80 degrees Celsius when the game turns on the maximum graphics and 2K resolution. The blow-out heat dissipation design of this version of Reference Edition, though improved by AMD with the vampor steam chamber, has not made Navi 10 even cooler. Sometimes the temperature suddenly rises to 85 degrees Celsius, causing the pulse to fall, causing the frame to lag. So I think if you want to buy the Radeon RX 5700 XT, you should choose the custom versions of OEM companies like ASUS, MSI, Gigabyte … because they always equip the optimal heat sink system cards to hold or even OC pulse of the GPU, providing higher performance and stability than the original AMD version.



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I only borrowed this card in a very short time and hope that these will help you imagine the power of the Radeon RX 5700 XT as well as GPU Navi 10 and the improvement of RDNA architecture. The PCIe 4.0 feature I haven't tested yet but next week I will have an X570 board to test if there is any difference with PCIe 3.0.



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So if you choose red or blue, will you buy RTX Super or Radeon RX 5000 series?



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