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Intel 15th Gen Arrow Lake CPUs to Feature Ray Tracing Cores and XMX Units for XeSS Upscaling

Intel has added initial support for its upcoming 15th Gen Arrow Lake processors to the Intel Graphics Compiler. Like Meteor Lake, Arrow Lake will feature a chiplet design with a disaggregated iGPU tile fabbed on TSMC’s N4 (4nm) or N3 (3nm) process node.

The 15th Gen family will leverage the Xe-LPG Plus architecture, a tweaked version of the Xe-LPG GPUs used by Meteor Lake. The Xe-LPG graphics architecture combines the features of Xe-LP and Xe-HPG to provide a low-power architecture for mild gaming with most DX12 capabilities.

Xe-LPG

The primary difference between the Xe-LPG GPU on Meteor Lake and the Xe-LPG Plus on 15th Gen Arrow Lake is but one. The former incorporates most components of Xe-HPG except the XMX units, and for good reason. The matrix units take up significant die space while offering minimal benefits beyond accelerated XeSS support on a consumer notebook.

The Xe-LPG Plus iGPU on Arrow Lake will be a miniature implementation of Intel’s next-gen integrated graphics with only a few Xe Cores. Regardless, XMX units will be a notable advantage for mobility platforms where every frame and watt count.

Intel’s Xe-LPG iGPUs also feature dedicated ray-tracing hardware capable of BVH traversal, ray/box intersection testing, and thread sorting to reduce divergence and improve utilization. It wouldn’t be inaccurate to say that LPG’s RT Cores are on par with AMD’s RDNA 3 Ray Accelerators, at least in terms of features.

Via Coelacanth’s Dream.

Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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