Intel Meteor Lake CPUs with TGPU reportedly offer ray tracing support, sports FP64 compute, but no XMX units

In a new commit published on GitHub, Intel may have confirmed ray tracing support for its Meteor Lake CPUs with Xe-HPG TGPU. That 14th Gen Intel Meteor Lake CPUs are planned for 2023 and will come with a host of new features including brand new hybrid cores, integrated graphics with tiled designs and a VPU accelerator which we talked about in our latest reporting.

Intel Meteor Lake CPUs with TGPU design will reportedly ship with ray tracing and FP64 support, but lack XMX units

According to a detailed report published by Coelacanth Dream, it looks like the GPU of the Intel Meteor Lake CPUs is recognized as a Xe-HPG product in the IGC (Intel Graphics Compiler). With that in mind, we can assume it will use the same architecture as the existing DG2 or Alchemist GPUs, but that’s not quite the case.

The Meteor Lake GPU, also known as the tGPU (Tiled GPU), does not support DPAS (Dot Product Accumulate Systolic) instructions running through the XMX units, as it is reportedly not equipped with them. in one previous reportwe covered how the graphics engine of Intel’s Meteor Lake CPU would lack XMX, resulting in less feature-level support for technologies like XeSS, but will instead offer partial FP64 support, something found in the Intel iGPUs of the lacked in previous generations.

The more interesting detail is that the TGPU (Xe-MTL) on the Intel Meteor Lake CPUs will reportedly come with hardware-level ray tracing support. The TGPU is said to offer the same level of ray tracing support as Alchemist and Ponte Vecchio GPUs, as the design hasn’t changed, at least in terms of ray tracing.

Regarding support for HW ray tracing Meteor Lake GPUsIGC/AdaptorCommon/RayTracing/PrologueShaders.cpp itIGFX_METEORLAKE are assumed to support it because of the addition of .

Apart from that, in the code part that determines its HW ray tracing support, it seems that way Meteor Lake GPU supports it as well Alchemist / DG2 and Ponte Vecchio because there is no change.

via Coelacanth Dream

Intel’s Meteor Lake CPU Tiled GPU won’t be the first integrated graphics chip to offer ray tracing support. AMD has been offering it for almost a year with its Ryzen 6000 “Rembrandt” APUs, which feature RDNA 2 iGPUs. This will be Intel’s first ray tracing capable integrated graphics, but we’re hoping to add partial upsampling support at the XeSS or AI level. As we have seen with AMD’s APUs, technologies such as FSR 2.0 can really help deliver playable FPS in gaming titles and that would be really great for mobile gamers.

Intel Meteor Lake Mobility CPU Lineup Expected Features:

  • Triple hybrid CPU architecture (P/E/LP-E cores)
  • Brand new Redwood Cove (P cores)
  • Brand new Crestmont (E cores)
  • Up to 14 cores (6+8) for H/P series CPUs and up to 12 cores (4+8) for U series CPUs
  • Intel 4 Process Node for CPU, TSMC for tGPU
  • Intel “Xe-MTL” GPU with up to 192/128 EUs
  • Up to LPDDR5X-7467 and DDR5-5200 support
  • Up to 96GB DDR5 & 64GB LPDDR5X capacities
  • Intel VPU for AI inference with atomic cores
  • x8 Gen 5 lanes for discrete GPU (H series only)
  • Triple x4 M.2 Gen 4 SSD support
  • Four Thunderbolt 4 ports

Intel’s 14th Gen Meteor Lake CPUs are expected to launch in the second half of 2023 and will use the “Intel 4” process node along with a variety of third-party IPs/process nodes for the rest of the tiles. Expect more information too Meteor Lake CPUs at Hot Chips 34.

Intel Mobility CPU Lineup:

CPU family arrow lake meteor sea Raptor Lake Erlensee
Process node (CPU tile) Intel 20A “5nm EUV” Intel 4 “7nm EUV” Intel 7 ’10nm ESF’ Intel 7 ’10nm ESF’
CPU architecture Hybrid (quad core) Hybrid (triple core) Hybrid (dual core) Hybrid (dual core)
P-Core architecture lions bay Redwood Bay Raptor Bay Golden Bay
E-Core architecture Skymont crestmont Gracemont Gracemont
top configuration open 6+8 (H series) 6+8 (H series) 6+8 (H series)
Max cores/threads open 14/20 14/20 14/20
Planned lineup H/P/U series H/P/U series H/P/U series H/P/U series
GPU architecture Xe2 Battle Mage ‘Xe-LPG’
Xe3 Celestial “Xe-LPG”
Xe-LPG ‘Vehicle MTL’ Iris Xe (Gen 12) Iris Xe (Gen 12)
GPU Execution Units 192 EUs (1024 colors)? 128 EUs (1024 colors)
192 EUs (1536 colors)
96 EUs (768 colors) 96 EUs (768 colors)
memory support open DDR5-5600
LPDDR5X – 7400+
Storage capacity (max.) open 96GB 64GB 64GB
Thunderbolt 4 ports open 4 2 2
WiFi capability open WiFi 6E WiFi 6E WiFi 6E
TDP open 15-45W 15-45W 15-45W
begin 2H 2024? 2H 2023 1H 2023 1H 2022

News source: hardware times

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