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RX 6800 depth test: Su Ma takes the AMD to the top!

via:驱动之家     time:2020/11/23 2:01:09     readed:498

The second half of this year is a bumper year for AMD. Since the launch of the sharp dragon 5000 Series CPU, it has been making great progress all the way. Moreover, it seems that Intel, which has been in turmoil for a long time, can't really enjoy AMD. Therefore, Su Ma's relatively stable video card market has also focused on NVIDIA, which is the overlord.

Bring AMD RX 6800XT today


Product specification changes:

As a new generation of architecture, it is necessary to do some detailed introduction, the details of the specifications are listed in the table below.

The most special change is that AMD RX 6000 series of graphics cards do not need as many flagship or high-end graphics cards as most flagship or high-end graphics cards, but only 256 bit GDDR6 this very mid-end combination can meet the requirements.

This is mainly due to the significant improvement in the structure. This is the transformation of strength.


Amd 6000 Series graphics card adopts a new rDNA 2 architecture, which completely eliminates the GCN based stream processor in the previous generation rDNA 1 architecture, and makes a great improvement on the front-end.

Here to find a clear core distinction map, is there a very kind feeling in the picture? Two groups CCX, large and divided into two groups of L3, full of Zen 2 sense of sight.

It seems that Zen architecture not only can be used for CPU, but also plays an important role in guiding the development of GPU architecture. The sharp reduction of the demand for video memory should largely benefit from the experience of Zen architecture in memory call optimization.


Product appearance introduction:

Here are two public AMD RX 6800XT


The basic shape of the graphics card is three fan air cooling, and the whole card is wrapped by a metal wind guide cover.


The appearance of AMD RX 6800 XT and Rx 6800 is basically the same mold production, the difference is the thickness of the graphics card.

Here's a point worth mentioning,Because only the upper and lower ends of the video card are perforated, there is a big difference between the actual use and the traditional three fan scheme with air leakage on all sides.

The hot air of the graphics card can be blown out from the upper and lower directions, which is quite friendly to the popular vertical plug graphics card, the glass side plate installation as far as possible to reduce the amount of heat accumulated around the graphics card.


So here's a way to quickly distinguish different types of AMD 6000 Series graphics cards.


This time the external power supply is unified to 2/8 PIN, from the appearance, the PCB of the two cards is likely to be the same wiring.


The PCI baffle can be seen different from most graphics cards. In order to better maintain the wind pressure of blowing hot air, the PCIe baffle is also completely closed. IO interface 1* HDMI、2*DP、1*USB TYPE-C.


The front end of the video card is also added with a fixing screw hole for mounting bracket.


From the previous host parameters, we know that the frequency of this generation of a card can be pulled very high.This MLCC capacitor welded with a piece of tofu is definitely to protect the high frequency. It's like the stack material of ATI public plate.


The overall length of the graphics card is not very long ,27 cm length can bring good compatibility.


The height of the video card is also well controlled, 2 cm higher than the normal PCI baffle, about 14 cm.


Video card thickness is also very modest, RX 6800 is the standard 4 cm thick double slot, RX 6800XT is slightly thicker than the double slot 1 cm, up to 5 cm, so from the point of view of installation, this generation A card is obviously easier to adapt to the chassis, especially ITX case, if targeted to make good use of the graphics card up and down blowing characteristics, the whole machine will also be better than the general open heat dissipation scheme.



The following is a detailed configuration table of the test platform.


Overall test planning:

First of all, let's talk about the overall test plan. As you can see from the test platform, this test is much more complicated than before. There are three chipsets in the optical test platform.

The test consists of four main parts:

- i7-8700K horizontal comparison with previous graphics card tests.

- i9-10900k and R9 5900x were used to compare the results of platforms on both sides of AI.

- By comparing the details of the three platforms, test the new features of the AMD 6000 series graphics card.

5 graphics cards are used in this test, RX 5700XT、RTX 2080Ti、RTX 3080、RTX 3090. is the contrast group 100% benchmarking remains GTX1070Ti. Sotai

It should be noted that because most of the tests use non-public graphics cards, the performance of graphics cards needs to be analyzed in combination with the running frequency. Here 30 series graphics cards are the first drive test, should be the peak of 30 series graphics cards in the near future.

Introduction of performance test items:

For children's shoes that are interested in further understanding the comparative performance, detailed test data will be provided here. The test can be roughly divided into the following parts: GPU theoretical performance, GPU benchmark test, game performance test, hardware acceleration test, power consumption test. As the old rule, there will be a large amount of data.


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