Steam Deck OLED vs ROG Ally X vs Legion Go S: Specs
A sourced comparison of Steam Deck OLED, ROG Ally X (2024) and Legion Go S 8ARP1, with exact model names and buying checks.
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Which handheld should you compare?
Compare the exact model and configuration: Steam Deck OLED, ROG Ally X (2024, RC72LA) and Lenovo Legion Go S (8ARP1) are the devices covered here. Similar names can refer to different hardware, and this page is not a comparison of every newer handheld sold in 2026.
Scope: a specification-based guide using manufacturer documentation checked September 28, 2026. Nexrivium has not performed a controlled FPS, battery-life or latency comparison for this article. No performance winner is declared.
Manufacturer specifications at a glance
| Model covered | Display | Processor / platform | Memory and battery |
|---|---|---|---|
| Steam Deck OLED | 7.4-inch HDR OLED, 1280 × 800, up to 90Hz | Custom AMD APU: Zen 2 CPU and RDNA 2 graphics | 16GB LPDDR5; 50Wh |
| ROG Ally X (2024, RC72LA) | 7-inch IPS, 1920 × 1080, 120Hz with VRR | AMD Ryzen Z1 Extreme | 24GB LPDDR5X; 80Wh |
| Legion Go S (8ARP1) | 8-inch IPS, 1920 × 1200, 48–120Hz VRR | Check the exact Lenovo machine-type specification | Memory and operating-system options depend on the configuration |
These figures are published specifications, not measurements of gaming performance. Check the regional SKU before ordering, especially for the Lenovo processor, memory and operating-system configuration.
Start with your game library
Check the games you actually play and the operating system they support. For Steam Deck, consult the game's current Steam Deck compatibility information and any publisher guidance. For Windows handhelds, check the launcher's requirements and controller support. Compatibility can change with game updates, particularly for online titles.
The screen specification is useful for comparison, but it does not tell you which settings or frame rate a demanding game will sustain. Likewise, a larger battery capacity does not directly predict longer runtime: workload, power limit, brightness and frame cap all affect consumption.
Compare portability and controls
Before choosing, consider whether you need trackpads, external peripherals, a dock or a particular control layout. Screen size and resolution should be evaluated alongside text readability in your games. If possible, try the controls and weight distribution in person rather than inferring comfort from a specification table.
What a fair performance comparison would require
A meaningful comparison needs the same game build, scene, resolution target and graphics settings, plus explicit device power modes, drivers, frame caps and operating systems. Report multiple runs and frame-time variation. Battery tests must state brightness, network conditions and workload.
Until those measurements exist for this article, no percentage FPS advantage or hours-of-play ranking is justified. Manufacturer performance demonstrations may help explain a product but should not be presented as our independent tests.
Buying checklist
- Match the full product name and model number to the manufacturer page.
- Check the local configuration, warranty, storage and supplied charger.
- Confirm compatibility with your important games and accessories.
- Look for benchmarks that identify the exact model, power mode and test conditions.
- Check current local pricing separately; this page does not maintain a live price comparison.
Sources and correction
- Valve: Steam Deck OLED technical specifications
- ASUS: ROG Ally X (2024) RC72LA specifications
- Lenovo: Legion Go S 8ARP1 product specifications
Correction — September 28, 2026: the previous article mixed model names between the title and body, repeated a conflicting author signature and included an unsupported performance advantage. This revision identifies the exact models, removes that performance claim and keeps one page-level author attribution. The original URL is retained for existing links.
