Intel’s Arc Alchemist ‘Xe-HPG’ Integrated GPUs on Next-Gen Meteor Lake CPUs Get Preliminary Support
The latest commit for Intel’s Meteor Lake CPUs was added by Pete Chou for the IGC (Intel Graphics Compiler). The main focus of this new commit is to enable support for the 14th Gen Meteor Lake CPUs and the integrated GPUs featured within it. The Intel Meteor lake CPUs will be the first to get the same graphics architecture that’s featured on the desktop and mobile lineup. The specific tGPU (Tiled-GPU) featured on the Meteor Lake CPUs is listed as “Xe_MTL”. With the new commit, an interesting thing that was pointed out by Coelacanth Dream is that the Intel Meteor Lake CPUs do not feature DPAS instructions and as such, don’t carry XMX units. The DPAS (Dot Product Accumulate Systolic) instructions are used to perform matrix multiplication-accumulate operations. The missing DPAS instructions may indicate that the Meteor Lake TGPUs might be lacking the XMX unit which mainly aims to provide higher inferencing and AI speeds. It’s crucial for the new XeSS (Ai-Assisted) technology which will is an AI-upscale similar to the NVIDIA DLSS technology. Instead of the DPAS (XMX) units, the Intel Meteor Lake CPUs will feature a VPU (Vision Processing Unit) which may provide some form of inferencing prowess that may help with XeSS but if so, the processing would be handled off the primary GPU chip. Additionally, there’s also partial support for FP64 (dual-precision) compute on Meteor Lake’s Tiled-GPUs that has been listed within the commit. Intel removed FP64 & Int64 support from its Gen 11 architecture but it seems to be coming back next year with Meteor Lake chips. The Meteor Lake CPUs will be utilizing a tiled Arc graphics-powered GPU which will make it an entirely new class of graphics on a chip. It’s neither an iGPU nor a dGPU & currently regarded as tGPU (Tiled GPU / Next-Gen Graphics Engine). The Meteor Lake CPUs will utilize the brand new Xe-HPG graphics architecture, allowing for increased performance at the same level of power efficiency as existing integrated GPUs. This will also enable enhanced support for DirectX 12 Ultimate and XeSS, features that are only supported by the Alchemist lineup as of right now.
Intel Mainstream CPU Generations Comparison:
