Intel's first Panther Lake CPU, the Core Ultra X7 358H, has leaked out within Geekbench, revealing its Xe3 Arc GPU performance capabilities.
Intel Arc Xe3 GPU's First Performance Benchmarks Revealed In Core Ultra X7 358H "Panther Lake" CPU Leak
It looks like we are starting to see the first wave of Intel Panther Lake laptops leak out, and the first one we have in Geekbench 6 is ASUS's ROG Zephyrus G14 "GU405AA_00016437B", which should be a 14" design featuring the Intel Core Ultra X7 358H CPU. The CPU itself is part of the Panther Lake 12Xe config, which is the top configuration with 16 CPU cores, which are arranged in a 4+8+4 config, along with 12 Xe3 GPU cores.
The Intel Core Ultra X7 358H "Panther Lake" CPU features a base clock of 1.90 GHz and boosts up to 4.8 GHz across those four Cougar Cove P-Cores. The CPU also comes packed with 18 MB of L3 cache, 8 MB of L2 cache, and is part of the "GenuineIntel Family 6 Model 204 Stepping 2" lineup. The laptop features 32 GB of LPDDR5x memory, though the speeds are not mentioned. ASUS will likely leverage the fastest 9600 MT/s speeds to fully leverage the GPU capabilities of the 12Xe Arc Xe3 iGPU.
The Intel Arc Xe3 iGPU is listed with 96 compute units or 12 Xe3 cores. The iGPU is running at a 2500 MHz clock speed, so it looks like each 12Xe SKU will configure the clock speed higher or lower, based on the SKU tier. The Core Ultra X9 series should offer the highest clocks for the Arc iGPU, and we expect around 2800 MHz, though we will see what the final specs have on offer. The iGPU is also configured with 16 GB of memory, which is shared with the system.
In terms of performance, two scores have been presented. First is the 52,946 points score, and the second is the 46,841 points score. Both scores were obtained on the same chip and laptop, so we're likely looking at different power modes/plans. Geekbench lists "Turbo" mode, but it is likely that the two scores were obtained with different power levels.
Geekbench OpenCL (Higher is Better)
As for comparison with existing Intel Arc Xe2 iGPUs, such as the 140V, the 12Xe Arc "Xe3" iGPU should be 69% and as high as 91% faster, depending on the power plan used. Intel's Lunar Lake CPUs with 8 Xe2 cores peak out at 37W, while Panther Lake-H CPUs will have a 45W default TDP, so that should also be kept in consideration. There are already 50% more cores, and Geekbench's OpenCL benchmark is just a small representation of the performance levels of GPUs. OpenCL is also not a widely used API, so it will be better to see Vulkan and DX12 results.
Once again, Intel has touted a 50% performance uplift for Xe3 versus Xe2, so it looks like we will be seeing that in proper games rather than synthetic workloads. Panther Lake CPUs, such as the Core Ultra X7 358H, are expected to hit shelves in January, so stay tuned for more information.
Intel Panther Lake-H and U lineup (Preliminary)
| CPU Model | P-Cores (Cougar Cove) | E-Cores (Darkmont) | LP-E Cores (Skymont) | CPU Clocks (Max) | L3 Cache | Xe3 iGPU Cores | iGPU Clock | TDP |
|---|---|---|---|---|---|---|---|---|
| Core Ultra X9 388H | 4 | 8 | 4 | 5.1 GHz | 18 MB | 12 (B390) | TBD | 25W (65-80W Turbo) |
| Core Ultra X9 386H | 4 | 8 | 4 | 4.9 GHz | 18 MB | 4 | TBD | 25W (65-80W Turbo) |
| Core Ultra X7 368H | 4 | 8 | 4 | 5.0 GHz | 18 MB | 12 (B390) | TBD | 25W (65-80W Turbo) |
| Core Ultra 7 366H | 4 | 8 | 4 | 4.8 GHz | 18 MB | 4 | TBD | 25W (65-80W Turbo) |
| Core Ultra X7 358H | 4 | 8 | 4 | 4.8 GHz | 18 MB | 12 (B390) | 2500 MHz | 25W (65-80W Turbo) |
| Core Ultra X7 356H | 4 | 8 | 4 | 4.7 GHz | 18 MB | 4 | TBD | 25W (65-80W Turbo) |
| Core Ultra 5 338H | 4 | 4 | 4 | 4.7 GHz | 18 MB | 10 (B370) | TBD | 25W (65-80W Turbo) |
| Core Ultra 5 336H | 4 | 4 | 4 | 4.6 GHz | 18 MB | 4 | TBD | 25W (65-80W Turbo) |
| Core Ultra 7 365 | 4 | 0 | 4 | 4.8 GHz | 12 MB | 4 | TBD | 25W (55W Turbo) |
| Core Ultra 7 355 | 4 | 0 | 4 | 4.7 GHz | 12 MB | 4 | TBD | 25W (55W Turbo) |
| Core Ultra 5 335 | 4 | 0 | 4 | 4.6 GHz | 12 MB | 4 | TBD | 25W (55W Turbo) |
| Core Ultra 5 325 | 4 | 0 | 4 | 4.5 GHz | 12 MB | 4 | TBD | 25W (55W Turbo) |
| Core Ultra 5 332 | 2 | 0 | 4 | 4.4 GHz | 12 MB | 2 | TBD | 25W (55W Turbo) |
| Core Ultra 5 322 | 2 | 0 | 4 | 4.4 GHz | 12 MB | 2 | TBD | 25W (55W Turbo) |
News Source: Benchleaks
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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