Panther Lake iGPU Lineup Leaks with Arc B390, B380, B370, and B360
Intel’s upcoming Panther Lake iGPU family has surfaced thanks to a reliable X leaker, revealing four Arc B-branded models. These integrated GPUs will be split across multiple CPU lines, with two reserved for Panther Lake and two likely to appear in other chip series.
Panther Lake iGPU specs confirmed for Arc B390 and B370
Recent Geekbench results confirmed the existence of two Panther Lake iGPU variants: Arc B390 and Arc B370. These chips will power Core Ultra 9, Ultra 7, and Ultra 5 models. The leak breaks down their specs clearly:
- Arc B390 – 12 cores, 2.5 GHz boost
- Arc B370 – 10 cores, 2.4 GHz boost
These iGPUs will sit at the top of Intel’s next-gen mobile stack. Notably, they aim to offer more performance than previous Arc Xe-LPG graphics, which still appear in desktop refreshes.
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Arc B380 and B360 may skip Panther Lake
Although part of the same family, the Arc B380 and Arc B360 aren’t exclusive to the Panther Lake iGPU stack. Instead, they are expected to ship with non-Panther Lake SKUs. These could include rebranded Arrow Lake laptop chips, which won’t receive new silicon this cycle.
- Arc B380 – 12 cores, 2.3 GHz boost
- Arc B360 – 10 cores, 2.2 GHz boost
Intel appears to be reusing proven hardware while building out new branding around Panther Lake. These chips may fill in the gaps for mainstream or thin-and-light laptops.
Arrow Lake Plus won’t feature Panther Lake iGPU
While Panther Lake pushes the Arc B-series forward, the Arrow Lake Plus desktop refresh will stick with Xe-LPG iGPUs, according to another Geekbench leak. This suggests that B-series chips are being positioned primarily for mobile platforms, at least for now.
Panther Lake iGPU roadmap gets clearer
Here’s a quick recap of what we know so far:
- Arc B390 and B370: Tied to Panther Lake CPUs
- Arc B380 and B360: Likely used in non-Panther Lake models
- No signs of HX-class chips for high-end laptops yet
This breakdown helps clarify Intel’s short-term graphics strategy. Rather than launching one unified family across all systems, Intel is dividing iGPU resources by segment.
Final thoughts on the leak
The leaked Panther Lake iGPU details paint a familiar picture. Intel seems focused on repurposing what works, labeling strategically, and optimizing performance per watt rather than chasing raw GPU power.
For now, these iGPUs look to improve mobile experiences modestly while deferring any major desktop graphics shakeup to future releases.
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