Intel Arc B370 Xe3 iGPU appears on Furmark 2 — Panther Lake graphics fall 14% behind last-gen Xe2 Arc 140V

Another benchmark listing has cropped up for the leaked Arc B370 integrated graphics chip housed in Intel's upcoming Panther Lake Core Ultra 5 338H. The iGPU was tested in Furmark 2 and shared by resident leaker momomo_us on X, featuring a score just below that of Intel's outgoing A380 desktop graphics card and Intel's outgoing Arc 140V and 140T iGPUs found in its Lunar Lake mobile CPUs.

The particular listing momomo_us shared above sees the Xe3 iGPU scoring 2,383 points in Furmark's benchmark test at a reported max boost clock of up to 2,300 MHz, and at up to 36 watts of power. However, the GPU is outperformed by Intel's outgoing Arc 140V and 140T counterparts, with the 140V scoring 2,736 points and the 140T scoring 2,398 points, respectively. The 140V and 140T results were taken from the same database that the B370's results came from.

These results make Intel's flagship 140V Xe2 graphics chip 14% faster than the B370, and the 140T equal to the B370. To make matters worse for the B370, both 140-series iGPUs operate at between 10 and 12 watts less, making the B370 worse on energy efficiency as well.

Take these results with a pinch of salt since the B370 is not out yet, but these results are awfully similar to our previous article on the B370, which showed the Xe3 iGPU performing roughly the same with the 140T in Geekbench as well. That said, these results are not surprising. Intel confirmed this year that its Celestial (Arc C-series) Xe3 graphics chips would actually function off of its outgoing Battlemage GPU architecture rather than jumping on a new architecture, as many previously thought. Instead, genuine performance/efficiency improvements won't come until Intel debuts its Xe3P architecture.

The Arc B370 will reportedly be one of the likely several iGPU models included in Intel's next-generation Panther Lake architecture (the Core Ultra 5 338H is the first chip we've seen with the B370). Panther Lake will launch in January 2026, boasting Intel's 18A process node, Cougar Cove P-cores, and Darkmount E-cores. Intel hopes Panther Lake will be a "one-size-fits-all" solution for mobile, providing the power efficiency of Lunar Lake and the performance of Arrow Lake in one cohesive design.

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