New Intel Panther Lake leak reveals new iGPU naming scheme

Even though Intel revealed a wealth of information about its upcoming Panther Lake chips, their names have yet to surface. So far, leaked benchmark listings have shown at least two SKUs: Core Ultra X9 388H and Core Ultra X7 358H. Now, we get to see the first non-X SKU in action.

The Core Ultra 5 338H has shown up on Geekbench with a never-before-seen iGPU: Arc B370. Its name is a bit of a misnomer because the B implies it is based on the Xe2 Battlemage architecture and not Xe3 Alchemist. Or it is likely a case of Geekbench misidentifying a GPU in what is clearly a pre-production laptop

Nevertheless, the Arc B370 here scores 39,406 in Geekbench's Vulkan benchmark. Its predecessor, the Arc 130V, scores 27,209 in the same benchmark, making it about 45% faster. This figure is close to Intel's advertised 50% performance uplift for Panther Lake's iGPUs.

Lastly, the listing also confirms the Core Ultra 5 338H comes with a total of 12 CPU cores. Geekbench classifies it as a two-cluster setup in an 8+4 layout. However, a previous leak stated it would be a mix of 4 P-cores, 4 E-cores and 4 LPE-cores, and that seems more plausible.