For years, the LG Gram has been synonymous with extreme portability, but its integrated graphics were a compromise. The latest LG Gram Pro AI (2026), powered by the Intel Core Ultra 7 358H (Arrow Lake), challenges this notion. Its secret weapon is the new Intel Arc B390 GPU, based on the Xe3 architecture. This review analyzes whether this ultrabook can finally deliver a smooth AAA gaming experience without sacrificing its 1.19kg frame.
The Core Revolution: Intel Arrow Lake & 18A Process
The Intel Core Ultra 7 358H is the first consumer CPU built on Intel's own 18A process node. This technology introduces RibbonFET (vertical transistors) and PowerVia (backside power delivery), effectively creating a '3D city' for transistors. This allows for 16 cores (4 P-cores, 8 E-cores, 4 LP E-cores) with over 30% better power efficiency than the previous generation.
Intelligent Core Management
Intel's Thread Director dynamically assigns tasks to the most efficient core: LP E-cores handle background tasks (e.g., messaging), E-cores manage the browser, and P-cores power demanding software like video editing. This ensures peak efficiency for every workload. This architecture is a key reason why the system can handle both productivity and gaming.
The Star of the Show: Intel Arc B390 GPU Benchmarks
The real game-changer is the integrated Arc B390 with 12 Xe cores. In 3DMark Time Spy, it scored 6,946 points, matching the performance of a laptop RTX 4050. This is a monumental leap from previous integrated graphics which scored around 2,000 points.
Real-World Gaming Performance
All tests were run at 1920x1200 (native 16:10 ratio) on Low settings with Intel XeSS (AI upscaling) set to Auto. The 1% low FPS is the critical metric for smoothness, as it indicates stuttering.
| Game Title | Average FPS | 1% Low FPS (Critical) |
|---|---|---|
| Cyberpunk 2077 | 62.5 | 51.3 |
| Black Myth: Wukong | 48.2 | 37.1 |
Dropping the resolution to 1680x1050 improved the 1% lows by ~10 FPS, making the experience even smoother. According to community data on Reddit, this performance is unprecedented for a 1.19kg ultrabook.
The Value Proposition: Core Ultra 5 338H
For budget-conscious users, the Core Ultra 5 338H (with Arc B370) offers a compelling alternative. While it has 4 fewer cores, Cinebench R20 scores are only 20% lower. In 3DMark Time Spy, the graphics score difference shrinks to just 12% . This means the Ultra 5 338H delivers ~90% of the gaming performance for a significantly lower price.
Conclusion: A New Standard for Ultrabooks
The 2026 LG Gram Pro AI has redefined the category. It is no longer just an ultra-portable machine; it is a legitimate gaming and content creation device. The combination of the Intel Arc B390 GPU and the efficient Arrow Lake architecture provides desktop-replaceable performance in a 1.19kg package. For users seeking the ultimate power, the Ultra 7 358H is the choice. For those wanting 90% of the performance at a better value, the Ultra 5 338H is the smarter buy.
π Information Date: 2024-05-21
π Further Reading
- AI Notebook Performance Comparison Guide - Learn how on-device AI enhances productivity.
- 2025 Tech Stock Market Outlook - Analyze the sectors driving the next wave of innovation.
