Intel’s Panther Lake CPU Appears With Surprising Arc GPU Branding

Panther Lake’s Graphics Identity Shift

Intel’s next-generation Panther Lake mobile processors are beginning to show up in public benchmarks with some unexpected branding changes. The latest sighting, spotted in the Geekbench database, reveals a Core Ultra 5 338H configuration that identifies its integrated graphics as “Intel Arc B370” – a notable departure from how the company has labeled its onboard GPUs in recent generations.

What makes this particular benchmark run interesting isn’t just the hardware specifications, but the fact that the graphics device name is properly filled in. According to industry observers, that small detail suggests this test used either newer silicon or updated drivers, indicating Intel’s validation process is progressing steadily toward production. The properly identified Arc B370 represents a step forward from earlier Panther Lake leaks where the GPU name appeared incomplete or generic.

Performance Numbers With Caveats

In the Geekbench Compute test using the Vulkan API, the Arc B370 scored 39,406 points. That figure appears substantially lower than the roughly 53,000 points reported earlier this week by a higher-end Core Ultra X7 358H Panther Lake chip. However, sources caution against direct comparisons since the previous result came from OpenCL testing rather than Vulkan.

The two graphics APIs can produce dramatically different results depending on driver optimization and workload characteristics. As one analyst noted, “Benchmark scores between Vulkan and OpenCL are notoriously difficult to compare directly, especially with early drivers that may not be fully optimized for both APIs.” This makes drawing firm performance conclusions premature at this stage.

Branding Strategy Comes Into Focus

Perhaps the most revealing aspect of this leak is Intel’s apparent shift in integrated graphics processing unit branding. Previous generations used distinct naming conventions – Lunar Lake featured “Arc 140V” graphics while Arrow Lake used “Arc 140T.” The move to a “B-series” designation brings Panther Lake’s integrated graphics branding much closer to Intel’s discrete Arc cards.

Industry watchers suggest this could signal Intel’s intent to create a more unified graphics identity across both integrated and discrete products. The company has been working to establish its Arc brand in the competitive GPU market, and aligning mobile and desktop naming could help strengthen that effort. Still, despite the name change, reports indicate the underlying Xe3 architecture in Panther Lake represents more of an incremental refinement than a radical break from the Xe2 design used in Lunar Lake.

Configuration Details Emerge

The benchmark listing shows the Core Ultra 5 338H configured with four Cougar Cove performance cores and eight Darkmont efficiency cores. Most likely, this represents a 4+4+4 configuration when accounting for low-power cores. The absence of the “X” branding seen in the higher-end X7 model suggests this particular SKU carries a smaller integrated GPU configuration.

Earlier leaks indicated the flagship Panther Lake models, including the Core Ultra X7 358H, would ship with four P-cores and up to twelve E/LP-cores. The Core Ultra 5 variant appears to target more mainstream segments with potentially reduced graphics capabilities. Unfortunately, the Geekbench Vulkan mode doesn’t expose GPU compute-unit counts, so the exact configuration differences remain unconfirmed.

Roadmap Implications

Intel has claimed that its Xe3 graphics architecture offers over 50% higher performance than Lunar Lake and more than 40% better efficiency compared to Arrow Lake. If these claims hold up in final silicon, Panther Lake could become a serious contender in the laptop and handheld gaming markets. The architecture appears positioned to compete aggressively with AMD’s integrated graphics solutions and potentially challenge entry-level discrete GPUs.

Meanwhile, the true architectural leap in Intel’s graphics roadmap is expected with Xe3p, the version planned for the company’s Celestial discrete GPUs. Panther Lake’s integrated graphics seem designed to bridge the gap between current capabilities and that next-generation architecture while establishing stronger brand consistency.

As benchmark trackers continue to monitor these early appearances, the properly identified Arc B370 device name suggests Intel‘s next-gen mobile platform is moving closer to production readiness. Between the CPU refinements and more capable Xe3 graphics, Panther Lake is shaping up to be one of Intel’s most interesting mobile launches in recent years – provided the company can deliver on the performance hinted at in these early leaks.