In a new commit posted on GitHub, Intel may have confirmed ray tracing support for its Meteor Lake CPUs with Xe-HPG TGPUs. The 14th Gen Intel Meteor Lake CPUs are scheduled for release in 2023 and will come with a variety of new features, including new hybrid cores, integrated graphics with tiled layouts, and a VPU accelerator that we covered in our last coverage. .
Intel Meteor Lake CPUs with TGPU Design Reportedly Come with Ray Tracing and FP64 Support, but Lack XMX Drives
According to a detailed report published by Coelacanth-Dream, it appears that the GPU that is included in Intel Meteor Lake CPUs is detected as a Xe-HPG product within IGC (Intel Graphics Compiler). Given that, we can assume that it will use the same architecture as existing DG2 or Alchemist GPUs, but that’s not entirely the case.
The Meteor Lake GPU, which is also known as tGPU (Tiled-GPU), does not support DPAS (Dot Product Accumulate Systolic) instructions executed through XMX units because it is reportedly not equipped with them. In a previous report, we covered how Intel’s Meteor Lake CPU graphics unit would lack XMX, resulting in lower feature-level support for technologies like XeSS, but instead have partial FP64 support, something that has been missing from Intel iGPUs in the last few generations
The most interesting detail is that the TGPU (Xe-MTL) in 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 the Alchemist and Ponte Vecchio GPUs, as there are no design changes, at least when it comes to ray tracing.
Regarding HW ray tracing support in GPU Meteor Lake
IGC/AdaptorCommon/RayTracing/PrologueShaders.cppit’sIGFX_METEORLAKEthey are believed to support it by adding .Other than that, in the part of the code that determines your HW ray tracing support, it looks like Meteor Lake GPU supports him as much as Alchemist / DG2 Y 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 support for ray tracing. AMD has been offering it for almost a year with its Ryzen 6000 “Rembrandt” APUs that feature RDNA 2 iGPU. These will be Intel’s first ray tracing-enabled integrated graphics, but we expect some partial XeSS upsampling or AI level support to be added. As we’ve seen with AMD APUs, technologies like FSR 2.0 can really help deliver playable FPS in game titles and that would be really awesome for mobile gamers.
Expected features of the Intel Meteor Lake Mobility CPU lineup:
- Hybrid triple CPU architecture (P/E/LP-E cores)
- New Redwood Cove (P cores)
- New Crestmont (E-Cores)
- Up to 14 cores (6+8) for H/P series and up to 12 cores (4+8) for U series CPUs
- Intel 4 compute node for CPU, TSMC for tGPU
- Intel ‘Xe-MTL’ GPU with up to 192/128 EU
- Support for up to LPDDR5X-7467 and DDR5-5200
- Capacities up to 96GB DDR5 and 64GB LPDDR5X
- Intel VPU for AI inference with Atom cores
- x8 Gen 5 Lanes for discrete GPU (H-series only)
- Triple x4 M.2 Gen 4 SSD support
- Four Thunderbolt 4 ports
The 14th Gen Intel Meteor Lake CPUs are expected to launch in the second half of 2023 and will use the “Intel 4” compute node along with a number of third-party compute nodes/IPs for the rest of the tiles. Expect more information on Meteor Lake CPUs at Hot Chips 34.
Intel Mobility CPU Line:
| CPU family | arrow lake | Meteor Lake | predatory lake | alder lake |
|---|---|---|---|---|
| Compute 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 | lion cove | redwood cove | predatory cove | golden cove |
| Electronic core architecture | Skymont | Crestmont | Gracemont | Gracemont |
| top configuration | Determined | 6+8 (H-series) | 6+8 (H-series) | 6+8 (H-series) |
| Max cores/threads | Determined | 14/20 | 14/20 | 14/20 |
| planned alignment | H/P/U series | H/P/U series | H/P/U series | H/P/U series |
| GPU architecture | Battlemage Xe2 ‘Xe-LPG’ either Xe3 Celestial “Xe-LPG” |
Xe-LPG ‘Xe-MTL’ | Iris Xe (Gen 12) | Iris Xe (Gen 12) |
| GPU Execution Units | 192 EU (1024 cores)? | 128 EU (1024 cores) 192 EU (1536 cores) |
96 EU (768 cores) | 96 EU (768 cores) |
| memory support | Determined | DDR5-5600 LPDDR5-7400 LPDDR5X – 7400+ |
DDR5-5200 LPDDR5-5200 LPDDR5-6400 |
DDR5-4800 LPDDR5-5200 LPDDR5X-4267 |
| Memory capacity (max.) | Determined | 96GB | 64GB | 64GB |
| Thunderbolt 4 ports | Determined | 4 | two | two |
| Wi-Fi Capability | Determined | WiFi 6E | WiFi 6E | WiFi 6E |
| TDP | Determined | 15-45W | 15-45W | 15-45W |
| Throw | 2H 2024? | 2H 2023 | 1H 2023 | 1H 2022 |
News source: HardwareTimes