Intel Meteor Lake CPUs With Arc Alchemist Graphics Architecture Gets Compiler Support, XMX For XeSS Missing But Partial FP64 On-Board

Hassan Mujtaba
Intel Docs Confirm LGA 1851 Socket For Meteor Lake-S Desktop CPUs & LPDDR5X-7500 Memory Support 2
An Intel Meteor Lake test chip from Fab 42. (Image Credits: CNET)

Intel's Meteor Lake CPUs have received new support within the IGC (Intel Graphics Compiler) to enable the Xe-HPG (Arc Alchemist) TGPUs which are featured on the upcoming chips.

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".

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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:

Intel CPU FamilyProcessor ProcessProcessor ArchitectureGraphics ArchitectureProcessors Cores/Threads (Max)PlatformMemory SupportPCIe SupportLaunch
Alder Lake (12th Gen)Intel 7Golden Cove (P-Core)
Gracemont (E-Core)
HD 700 Series16/24LGA 1700/1800DDR5 / DDR4PCIe Gen 5.02021
Raptor Lake (13th Gen)Intel 7Raptor Cove (P-Core)
Gracemont (E-Core)
HD 700 Series24/32LGA 1700/1800DDR5 / DDR4PCIe Gen 5.02022
Raptor Lake Refresh (14th Gen)Intel 7Raptor Cove (P-Core)
Gracemont (E-Core)
HD 700 Series24/32LGA 1700/1800DDR5 / DDR4PCIe Gen 5.02023
Meteor LakeIntel 4Redwood Cove (P-Core)
Crestmont (E-Core)
Xe1 (Alchemist)22/28LGA 1851DDR5PCIe Gen 5.02024
Arrow LakeTSMC N3BLion Cove (P-Core)
Skymont (E-Core)
Xe1 (Alchemist)24/24LGA 1851DDR5PCIe Gen 5.02024
Arrow Lake RefreshTSMC N3BLion Cove (P-Core)
Skymont (E-Core)
Xe1 (Alchemist)24/24LGA 1851DDR5PCIe Gen 5.02026
Lunar LakeTSMC N3BLion Cove (P-Core)
Skymont (E-Core)
Xe2 (Battlemage)8/8Mobile OnlyLPDDR5XPCIe Gen 5.02024
Panther LakeIntel 18ACougar Cove (P-Core)
Darkmont (E-Core)
Xe3 (Battlemage)16/16Mobile OnlyLPDDR5/LPDDR5XPCIe Gen 5.02025
Nova LakeIntel 18ACoyote Cove (P-Core)
Arctic Wolf (E-Core)
Xe3 (Battlemage)
Xe3P (Celestial)
52/52LGA 1954DDR5PCIe Gen 5.02026
Razor LakeIntel 18A?Griffin Cove (P-Core)
Golden Eagle (E-Core)
TBATBALGA 1954DDR5PCIe Gen 5.0?2027
Titan LakeTBACopper Shark (Unified)
Golden Eagle (E-Core)
TBATBAMobile OnlyLPDDR6?PCIe Gen 5.0?2028
Hassan Mujtaba Photo

About the author: A Software Engineer by training and a PC enthusiast by passion, Hassan Mujtaba serves as Wccftech's Senior Editor for hardware section. With years of experience in the industry, he specializes in deep-dive technical analysis of next-generation CPU and GPU architectures, motherboards, and cooling solutions. His work involves not only breaking news on upcoming technologies but also extensive hands-on reviews and benchmarking.

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