Intel's latest Core Ultra Series 3 processors, codenamed Panther Lake, are marking a significant return to form for the company's gaming ambitions, particularly within the thin and light laptop segment. This comes after a challenging period for Intel, which saw substantial financial losses and underwhelming performance from its flagship desktop chips.
Following the positive reception of its Lunar Lake laptop processors, the Panther Lake family, highlighted by the integrated Arc B390 GPU, is drawing widespread acclaim. On paper, the B390 is designed to rival discrete GPUs like the Nvidia RTX 4050. To assess these claims, a week-long test was conducted using several Panther Lake-equipped laptops.
The testing included a high-end Asus ZenBook Duo 2026 featuring an Intel Core Ultra X9 388 with a 12 Xe3-core Arc B390 iGPU, 32GB of LPDDR5 memory, and a 1TB PCIe SSD. For mid-range performance analysis, the MSI Prestige Flip 14 AI+, Samsung Galaxy Book6 Pro, and Asus ExpertBook were used. These models are powered by the Core Ultra X7 358H chip with the Arc B390 iGPU, 32GB LPDDR5 memory, and 1TB to 2TB of PCIe SSD storage, with some available for under $1,600.
Historically, thin and light laptops could handle less demanding games or older titles on reduced settings. However, playing graphically intensive games such as Cyberpunk 2077, Warhammer 40,000: Darktide, and Path of Exile 2 posed a significant challenge. After a week of extensive play, the Panther Lake processors demonstrated a notable capability in running these demanding games.
Across various titles, maintaining a 1080p/1200p resolution with graphics settings just below the highest presets, ray tracing disabled, and Intel XeSS set to balanced mode (without frame generation), average frame rates consistently stayed between 45 and 60fps. While occasional stutters occurred, such as during intense enemy waves in Darktide, they did not detract significantly from the overall experience, even mirroring similar issues on high-end desktop hardware.
The new Doom: The Dark Ages proved to be a more demanding stress test, with frame rates hovering around 45-50fps at 1080p even with more aggressive graphical compromises, a performance dip that might be more noticeable on larger displays. Improved driver support could potentially alleviate some of these issues in the future.
Cyberpunk 2077 performed admirably, achieving average frame rates of 50-60fps, with brief dips into the mid-40s during intense combat sequences. Path of Exile 2 was the most forgiving, generally averaging around 70fps with only minor drops. High settings at 1080p with Balanced XeSS produced visually appealing results, and further optimization is possible by switching XeSS to Performance mode or adjusting graphical settings.
A notable finding was that performance remained consistent whether running on battery power or plugged in. Unlike many gaming laptops that experience framerate drops when unplugged, Panther Lake systems maintained their performance levels, provided the power profiles for plugged-in and battery modes were set identically.
In terms of CPU performance, the Core Ultra X7 and X9 showed no significant difference in gaming scenarios, despite the X9's slightly higher scores in synthetic benchmarks. The integrated Arc B390 GPU, while capable, struggled to deliver playable frame rates with ray tracing effects enabled, even at reduced resolutions.
Intel's XeSS frame generation feature proved beneficial, providing a noticeable boost in visual smoothness when initial frame rates were above 45-50fps, without introducing perceptible latency. However, the integrated graphics' inherent capabilities are strong enough within the thin and light category that frame generation is more of an added bonus than a necessity.
While Intel continues to face strong competition in the desktop market from AMD, Panther Lake's success in laptops is crucial. The performance offered by the Arc B390 at its accessible price point is unmatched in this class of laptop, potentially giving Intel an edge against competitors like Nvidia, whose upcoming offerings may target a more premium segment.
Furthermore, Panther Lake shows promise for handheld gaming devices, an area currently dominated by AMD's Ryzen chips. The upcoming MSI Claw 8 EX AI+, powered by Panther Lake's Arc G3 Extreme chip, is poised to continue this trend. Although Panther Lake may not entirely offset Intel's desktop setbacks, it represents a significant positive development for the company's future in PC gaming.