As per a source on Twitter, Intel’s DG2 GPU will feature as much as 8GB of GDDR6 memory. These discrete graphics processors will be made available to OEMs along with the Tiger Lake-H and Alder Lake-P CPUs.
While DG1 should come to the low-power 15-28W market, DG2 will most likely be limited to the 45W segment, where we’ll see the eight-core Tiger Lake-H CPUs next year. 8GB of VRAM means we’ll either see a 128-bit bus or a 256-bit bus. DG2 is expected to range from 128 EUs to 256 and even 512 EUs, with potential support for ray-tracing and other DirectX 12_2 features such as mesh shaders, texture feedback, etc. This means that DG2 will likely be a part of the XPG graphics cards aimed at gamers expected to launch next year with GDDR6 memory, and fabbed on TSMC’s 5nm/6nm node.
A source even claimed the existence of a 960 EU XPG (7,680 shaders) GPU, but the Tweet has now been removed. DG1, on the other hand, will be limited to 96EUs and a 128-bit bus paired with 4GB of VRAM and a 16MB L3 cache. It’ll be closer to the integrated and lower-end dGPUs such as the MX450 and MX350.
You can read more about the Gen12 Xe architecture here.