Intel’s upcoming Panther Lake lineup is already making waves in early benchmarks, and the latest leak suggests a strong showing for integrated graphics in mainstream laptops. A Geekbench entry for the Core Ultra 5 338H points to an Arc B370 iGPU posting 39,406 points in the Vulkan test—roughly on par with AMD’s Radeon 880M found in Strix Point-based Ryzen AI 9 365 systems using RDNA 3.5 graphics.
The Core Ultra 5 338H is positioned as a budget-friendly H-series chip, yet it carries a 12-core hybrid design split into 4 performance cores, 4 efficiency cores, and 4 low-power efficiency cores. The listing shows a 1.90 GHz base clock with an observed boost close to 3.7 GHz on this run, though early engineering samples often boost higher in final silicon. Cache is listed at 3 MB L2 and 18 MB L3.
Graphics are the headline here. Reports indicate the Arc B370 includes 10 Xe3 GPU cores, and the Vulkan score suggests it can trade blows with AMD’s popular Radeon 880M iGPU. This tracks with previous Panther Lake leaks where a higher-tier Core Ultra X7 358H, sporting 12 Xe3 cores, went toe-to-toe with the laptop GeForce RTX 3050 and even outpaced the Radeon 890M in Geekbench OpenCL. If these trends hold, Intel’s midrange Panther Lake systems could deliver a meaningful uplift in integrated graphics performance for gaming, creative work, and GPU-accelerated tasks without a discrete GPU.
As always, keep in mind that Geekbench results can vary and pre-release hardware doesn’t always reflect final performance or clock speeds. Still, the early data is encouraging for anyone eyeing slim, power-efficient laptops with capable iGPUs.
What to expect from the broader lineup
– Panther Lake-H: Multiple 45W processors are expected, including Core Ultra 9, Ultra 7, and Ultra 5 models. Many H-series SKUs reportedly use a 4P+8E core configuration supplemented by LP-E cores, with up to 12 Xe3 GPU cores on higher trims.
– Panther Lake-U: Lower-power chips in the 15–28W range are planned for thin-and-light notebooks, with up to 4 performance cores and LP-E cores, plus integrated Arc graphics.
– Clocks and iGPU specs remain preliminary, but one H-series model has been seen with a 2.5 GHz iGPU clock and 12 Xe3 cores, while the Core Ultra 5 338H appears to carry 10 Xe3 cores.
Bottom line: If the Arc B370’s 39,406-point Vulkan result is representative, the Core Ultra 5 338H could bring Radeon 880M-class graphics to mainstream Intel laptops, delivering a compelling blend of CPU efficiency and iGPU capability in the next wave of Panther Lake notebooks.
