Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| RAM | 16 GB | 24 GB |
Between the Legion Go S and ROG Ally X, the Legion Go S comes out ahead in several specs, while the ROG Ally X wins on ram. Overall, the Legion Go S scores 59.2 and the ROG Ally X scores 63.2 on our Mars Score.
Which should you buy?
The ROG Ally X edges ahead on the Mars Score (59.2 vs 63.2), but the 4.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The Legion Go S does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the ROG Ally X if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are ram. The single most decisive one: RAM — 50.00% more. 24 GB vs 16 GB.
Both ship with comparable storage, max resolution, max refresh, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Lenovo - Legion Go S or ASUS - ROG Ally X?
ASUS - ROG Ally X leads the current Mars Score by 4.0 points.The more useful decision is the trade-off behind that result: compare ram against the way you will actually use the product.
Choose Lenovo - Legion Go S if…
Lenovo - Legion Go S does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose ASUS - ROG Ally X if…
ASUS - ROG Ally X has the measurable edge on ram gb.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Lenovo - Legion Go S wins
- No decisive advantages.
Why ASUS - ROG Ally X wins
- ▲RAM — 50.00% more. 24 GB vs 16 GB.
Spec comparison
Performance
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| CPU | AMD Ryzen Z2 Go | AMD Ryzen Z1 Extreme |
| GPU | AMD RDNA 3 (~6 TFLOPS) | AMD RDNA 3 (~8.6 TFLOPS) |
| RAMⓘ | 16 GB | 24 GBlead |
| Max resolution | 1080p | 1080p |
| Max refreshⓘ | 120 Hz | 120 Hz |
| Ray tracing | true | true |
| VRRⓘ | true | true |
Storage
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| Storageⓘ | 1024 GB | 1024 GB |
| Storage typeⓘ | NVMe SSD | NVMe SSD |
| Expandable storageⓘ | true | true |
Design & I/O
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| Disc drive | false | false |
| HDMIⓘ | 0 | 0 |
| USB ports | 2lead | 1 |
| Weight | 0.640 kglead | 0.678 kg |
| VR support | false | false |
Frequently asked
Does Legion Go S or ROG Ally X have a disc drive?+
Neither has a disc drive.
Which supports higher refresh rates, Legion Go S or ROG Ally X?+
ROG Ally X supports up to 120Hz vs 120Hz.