Linux Drivers for AMD Vega Graphics Cards reveals that this graphics card would have a total of 4096 Stream Processors, with a compartmentalization system similar to that of Fiji GPUs.
The last part of the drivers for Linux has revealed some news regarding the AMD Vega graphics card, specifically the Vega 10 GPU, which has many configuration similarities with the Fiji GPU cores, the graphics cards that give life to Radeon R9 Fury enthusiast graphics cards. We can find within this patch certain software configuration values for the optimization and correct use of the resources of this new GPU that is soon to arrive.
First up, we have the text “gfx.config.max_shader_engines = 4” which indicates that Vega 10 has four Shader Engines like Fiji. The next line of text “Adev-> gfx.config.max_cu_per_sh = 16” refers to the number of GCN Compute Units per number of Shaders Engines. Assuming the number of Stream Processors per Compute Units hasn’t changed from 64 on the Vega architecture, that’s a total of 4096 Stream Processors. That means these new GPUs have a total of 256 TMUs.
According to the information about the Vega 10 package that we had, there was talk that it would have a square DIE, with two rectangular memory units integrated into the same DIE of the GPU. The incorporation of only two memory units in the Vega 10 has led to talk of a 2048-bit memory interface, somewhat smaller than the 4096 bits offered by Fiji graphics cards, but we must emphasize in this case that this new AMD graphics card makes use of the latest generation of memories, the HBM2, which has higher operating frequencies, making these memories work at twice the speed of Fiji memories, to offer the same bandwidth, 512GB / s.
It should be noted that the Vega 4096 10 Stream Processors are two generations ahead of the Fiji Stream Processors, which together with the new 14nm architecture, could allow the GPU frequencies to be higher, thus making AMD win. a lot of ground in the graphics card market, something you badly need. This could also mean that the benchmarks seen of an engineering AMD Vega are not real data, but provisional data from a graphics in development and from a chip that is not the most powerful to hit the market.
| Radeon RX 480 | Radeon RX Vega | |
|---|---|---|
| GPU | Polaris 10XT | Vega 10XT |
| Architecture | 14nm | 14nm |
| Shader Engines | 4 | 4 |
| Stream Processors | 2304 | 4096 |
| Computing power | 5.8 TFLOPS 5.8 (FP16)TFLOPS |
12.5 TFLOLPS 25 (FP16)TFLOPS |
| Render Output Units | 32 | 64 |
| Texture mapping units | 144 | 256 |
| Hardware Threads | 4 | 8 |
| Memory interface | 256-bit | 2048-bit |
| Conference proceedings | 8GB GDDR5 | 8GB HBM2 |
Source: reddit
"could allow", I wanted to point out that error so you can edit it.
On the other hand we can be facing something interesting then. Let's wait to see what AMD brings us, I haven't used an AMD GPU for a long time but I would be happy to.