The veil is slowly lifting from Intel's next-generation Panther Lake processors, and the integrated graphics performance is shaping up to be a significant leap forward. After an initial Geekbench listing teased the capabilities of the Arc B390 and B370 iGPUs, a new leak has now painted the complete picture of the graphics lineup that will power the laptops of late 2025 and beyond.
The latest information, which fills in the crucial gaps in the product stack, suggests Intel is preparing a multi-tiered Arc B-series strategy to cater to everything from premium ultraportables to mainstream productivity machines.
The Complete Panther Lake Arc iGPU Lineup
The initial glimpse from Geekbench confirmed that the top-tier Arc B390 would be found in Core Ultra 9 and Core Ultra 7 SKUs, while the Arc B370 would handle graphics duties for Core Ultra 5 models. Now, renowned X leaker @OneRaichu has provided the full spec sheet for the entire family, revealing a more nuanced four-model lineup.
According to the leak, the full Panther Lake iGPU roster is as follows:
- Arc B390: 12 Xe2 Cores, 2.5 GHz boost clock
- Arc B380: 12 Xe2 Cores, 2.3 GHz boost clock
- Arc B370: 10 Xe2 Cores, 2.4 GHz boost clock
- Arc B360: 10 Xe2 Cores, 2.2 GHz boost clock
This structure indicates a clear segmentation based on both core count and clock speeds, allowing OEMs to fine-tune the performance and power efficiency of their devices. The presence of the B380 and B360 models provides more options for mid-range configurations, potentially offering better value for users who don't need the absolute top-tier graphics performance.
A Hint at Broader Applications: Beyond Panther Lake
Interestingly, the leak also notes that the 10 EU (Execution Unit) Arc B380 and B360 are slated to "show up in other SKUs." This crucial detail has sparked speculation among industry watchers that these specific iGPUs may not be exclusive to the Panther Lake family.
One plausible theory is that these graphics units could be integrated into other upcoming Intel processor lines, perhaps even for entry-level desktop CPUs or low-power NUC-style devices. This kind of architectural reuse is common in the industry, helping to streamline production and offer a consistent graphics experience across different product segments.
Arrow Lake Refresh Sticks with Current Gen, Panther Lake Skips HX?
While the excitement builds for Panther Lake's new Xe2-based graphics, the news is different for the desktop crowd. A separate Geekbench listing has seemingly confirmed that the anticipated Arrow Lake desktop refresh will carry a "Plus" branding and, importantly, will retain the current-generation Arc Xe-LPG iGPU. This suggests that the major integrated graphics uplift will be a mobile-first feature, at least initially.
Furthermore, the leak raises questions about Intel's high-performance mobile segment. There has been no information regarding a Panther Lake-based successor to the current HX-branded laptop CPUs, which are typically the most powerful chips for gaming and creator laptops.
As the direct successor to Lunar Lake—which is focused on extreme low-power efficiency—Panther Lake itself may not include any high-performance HX-class chips. It stands to reason that Intel will instead refresh its HX lineup with rehashed Arrow Lake silicon from the previous generation. In this scenario, the newly revealed Arc B380 and B360 iGPUs become plausible candidates to serve as the integrated graphics for those powerful, yet more graphics-focused, HX processors.
What This Means for Gamers and Creators
The fully revealed Panther Lake iGPU lineup signals Intel's serious commitment to the integrated graphics market. With up to 12 Xe2 cores and boost clocks pushing 2.5 GHz, the Arc B390 could deliver gaming and content creation performance that was previously only possible with discrete entry-level GPUs. For the average user, this translates to buttery-smooth gameplay in popular titles like Valorant and League of Legends at 1080p, and significantly faster video editing and 3D rendering performance without the need for a dedicated graphics card.
As we await official confirmation and benchmarks from Intel, one thing is clear: the battle for the best laptop graphics is about to get a lot more interesting.