AMD Linux Drivers Detail Vega 10 Core Configuration

/ 3 years ago

AMD Linux Drivers Detail Vega 10 Core Configuration

As we near launch in Q2, more and more AMD RX Vega GPU details have started leaking. one of the best sources of information are the pre-release drivers, especially for Linux which are publically available. As part of a Direct Rendering Manager update to their Linux driver, we now have some details for the upcoming GPUs. From the drivers, it appears that Vega shares a lot of similarities with their previous Fiji flagship.

Next-Generation Compute Unit!

Just like Fiji, we have 64 CUs but these have been updated to the Next-Generation Compute Unit. This gives us 4,096 shaders based on the new GCN architecture, divided into a total of 4 shader engines. Each shader engine features  2 Asynchronous Compute Units, 16 ROPs (64 total) and 64 TMUs (256 total). This setup allows for 8 different independent workloads threads to be scheduled and handled at once.

  • adev->gfx.config.max_shader_engines = 4;
  • adev->gfx.config.max_tile_pipes = 8; 
  • adev->gfx.config.max_cu_per_sh = 16;
  • adev->gfx.config.max_sh_per_se = 1;
  • adev->gfx.config.max_backends_per_se = 4;
  • adev->gfx.config.max_texture_channel_caches = 16;
  • adev->gfx.config.max_gprs = 256;
  • adev->gfx.config.max_gs_threads = 32;
  • adev->gfx.config.max_hw_contexts = 8;

Vega uses HBM2

Unlike Fiji which featured 4GB of HBM in 4 blocks over a 4,096-bit bus, Vega uses HBM2. Due to the increased density and speeds, Vega 10 is expected to get away with just 2 HBM2 blocks over a 2,048-bit bus. Along with what is expected to be a vastly higher clock speed and improved architecture, Vega should leave Fiji in the dust.

AMD Radeon RX Vega Graphics Cards – What We Know So Far!

Check out the latest on Vega right here.

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