Intel Arc B390 iGPU Geekbench Leak: Panther Lake Hits RTX 3050 Ti Levels
Sunday, November 16, 2025Intel Arc B390 iGPU Geekbench Leak: Panther Lake Hits RTX 3050 Ti Levels
A fresh Geekbench leak spotlights Intel's flagship Arc B390 iGPU in the Panther Lake Core Ultra X7 358H, scoring 57,001 in OpenCL. This puts it neck-and-neck with the Nvidia RTX 3050 Ti Laptop GPU, signaling a massive leap for integrated graphics. Tested on a Samsung Galaxy Book6 Pro QS with beta drivers, the 12-core Xe3 beast at 2.5 GHz could redefine laptop and handheld gaming. Here's the deep dive into specs, benchmarks, and what it means for AMD rivals.
Tested Hardware: Core Ultra X7 358H Panther Lake
The leak comes from a Samsung Galaxy Book6 Pro prototype (QS sample):
- CPU: Core Ultra X7 358H (4 P-cores, 8 E-cores, 4 LP-E cores; 16 cores/threads total)
- Clocks: Base 1.90 GHz, Boost up to 4.80 GHz; 18 MB L3 cache
- iGPU: Arc B390 (Xe3/Battlemage; 12 cores/96 CUs, up to 2.5 GHz)
- Memory: 32 GB LPDDR5x (16.4 GB dedicated to GPU)
- OS/Drivers: Windows 11 Pro 64-bit, beta drivers
Panther Lake, on Intel's 18A process, targets premium laptops with chiplet design for scalability. Launch expected Q1 2026 at CES.
Geekbench OpenCL Results: Discrete-Level Power
The Arc B390 crushed Geekbench 6 OpenCL at 57,001 points, up 7% from an earlier 52,946 run on the same chip. This ties the RTX 3050 Ti Laptop (58,044) and beats the RTX 3050 Laptop (50,915) by 12%.
OpenCL Benchmark Comparison
| iGPU/GPU | OpenCL Score | vs. Arc B390 |
|---|---|---|
| Arc B390 (Panther Lake, new) | 57,001 | Baseline |
| RTX 3050 Ti Laptop | 58,044 | -2% |
| RTX 3050 Laptop | 50,915 | +12% |
| Arc B390 (prior run) | 52,946 | +7% |
| Arc B370 (Xe3 12-core?) | 46,841 | +22% |
| Radeon 890M (RDNA 3.5) | 37,095 | +54% |
| Arc 140V (Lunar Lake) | ~29,000 | +92% |
RTX 3050 Ti handles 1080p AAA at low-medium 60fps; B390 could match in laptops/handhelds.
Arc B-Series Lineup: B390 Leads the Pack
Panther Lake's Xe3 iGPUs branded Arc B-Series (Battlemage-derived):
- B390: 12 Xe3 cores (96 CUs), up to 2.5 GHz (Ultra X7/X9)
- B380: 12 Xe3 cores, up to 2.3 GHz (handhelds)
- B370: 10 Xe3 cores, up to 2.4 GHz (Ultra 5)
- B360: Lower-tier
Expect XeSS 3, AV1, enhanced RT. ~50%+ raster uplift over Lunar Lake Xe2.
Real-World Implications: Laptops and Handhelds
B390 crushes Radeon 890M (+54%), closing Intel's gap vs. AMD Strix Halo. In thin laptops, it enables 1080p gaming without dGPUs. For handhelds (B380 variant), viable Steam Deck competitor. Caveat: OpenCL ≠ gaming; await Vulkan/DX12, ray tracing tests.
~92% over Lunar Lake, 38% over Arrow Lake iGPU.
Caveats: Beta Silicon, Driver Maturity
QS sample + beta drivers; retail could climb 10-20%. Arc history: launches rough, but matures strong. Gaming benchmarks key for validation.
Verdict: iGPU Crown Contender
Arc B390 positions Panther Lake as an iGPU powerhouse, rivaling entry discrete GPUs. AMD/Qualcomm face stiff 2026 competition. Enthusiasts: Exciting times for portable power.