ASUS - ROG Ally Z1 Extreme vs Valve - Steam Deck OLED 1TB
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - ROG Ally Z1 Extreme | Valve - Steam Deck OLED 1TB |
|---|---|---|
| Storage | 512 GB | 1024 GB |
| Max refresh | 120 Hz | 90 Hz |
| Ray tracing | true | false |
Between the ROG Ally Z1 Extreme and Steam Deck OLED 1TB, the ROG Ally Z1 Extreme comes out ahead in max refresh / ray tracing, while the Steam Deck OLED 1TB wins on storage. Overall, the ROG Ally Z1 Extreme scores 54.6 and the Steam Deck OLED 1TB scores 57.2 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (54.6 vs 57.2). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the ROG Ally Z1 Extreme if you care most about max refresh / ray tracing. The biggest gaps in its favor are max refresh, ray tracing. The single most decisive one: Max refresh — 33.33% more. 120 Hz vs 90 Hz.
Pick the Steam Deck OLED 1TB if you care most about storage. Its strongest claims are storage. The single most decisive one: Storage — 100.00% more. 1024 GB vs 512 GB.
Both ship with comparable ram, max resolution, disc drive, 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: ASUS - ROG Ally Z1 Extreme or Valve - Steam Deck OLED 1TB?
Valve - Steam Deck OLED 1TB leads the current Mars Score by 2.6 points.The more useful decision is the trade-off behind that result: compare storage, max refresh against the way you will actually use the product.
Choose ASUS - ROG Ally Z1 Extreme if…
ASUS - ROG Ally Z1 Extreme has the measurable edge on max refresh hz, has ray tracing.
Choose Valve - Steam Deck OLED 1TB if…
Valve - Steam Deck OLED 1TB has the measurable edge on storage 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 ASUS - ROG Ally Z1 Extreme wins
- ▲Max refresh — 33.33% more. 120 Hz vs 90 Hz.
- ▲Has Ray tracing.
Why Valve - Steam Deck OLED 1TB wins
- ▲Storage — 100.00% more. 1024 GB vs 512 GB.
Spec comparison
Performance
| Spec | ASUS - ROG Ally Z1 Extreme | Valve - Steam Deck OLED 1TB |
|---|---|---|
| CPU | AMD Ryzen Z1 Extreme | AMD Zen 2 4-core |
| GPU | AMD RDNA 3 (~8.6 TFLOPS) | AMD RDNA 2 (1.6 TFLOPS) |
| RAMⓘ | 16 GB | 16 GB |
| Max resolution | 1080p | 1080p |
| Max refreshⓘ | 120 Hzlead | 90 Hz |
| Ray tracing | truelead | false |
| VRRⓘ | true | true |
Storage
| Spec | ASUS - ROG Ally Z1 Extreme | Valve - Steam Deck OLED 1TB |
|---|---|---|
| Storageⓘ | 512 GB | 1024 GBlead |
| Storage typeⓘ | NVMe SSD | NVMe SSD |
| Expandable storageⓘ | true | true |
Design & I/O
| Spec | ASUS - ROG Ally Z1 Extreme | Valve - Steam Deck OLED 1TB |
|---|---|---|
| Disc drive | false | false |
| HDMIⓘ | 0 | 0 |
| USB ports | 1 | 1 |
| Weight | 0.608 kglead | 0.640 kg |
| VR support | false | false |
Frequently asked
Does ROG Ally Z1 Extreme or Steam Deck OLED 1TB have a disc drive?+
Neither has a disc drive.
Which has more storage, ROG Ally Z1 Extreme or Steam Deck OLED 1TB?+
Steam Deck OLED 1TB ships with 1024GB of NVMe SSD.
Which supports higher refresh rates, ROG Ally Z1 Extreme or Steam Deck OLED 1TB?+
ROG Ally Z1 Extreme supports up to 120Hz vs 90Hz.