We definitely want to integrate it. Due to the unique nature of our tech it could have a significant impact on our performance. However it’s quite to be a pretty serious effort to do the port so we’ll see how things play out over the next few months.
personally I’d go for an AMD HBM videocard. traditionally AMD/ATI drivers have sucked, but that’s partly due to AMD strictly following the API (OpenGL, DirectX<=11) when the game/engine needs special tweaks. Vulkan really matches up with AMD’s driver building philosophy, so I expect to see good vulkan drivers coming from them.
that and I seriously don’t like NVIDIA as a company. bunch of sleezeballs like microsoft is.
Both d3d12 and Vulkan allow the full use of VRAM in SLI. In fact d3d12/Vulkan allow the full use of SLI and the full use of your integrated video card all at the same time. Unfortunately the engineering effort required to maximize the usage of that many GPU’s is significant given that ultimately only 1 of them controls the framebuffer and you have to deal with moving memory from GPU to GPU and GPU to/from CPU.