ASUS - ROG Astral RTX 5090 OC vs AMD - Radeon RX 9070
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ASUS - ROG Astral RTX 5090 OC | AMD - Radeon RX 9070 |
|---|---|---|
| CUDA / Stream cores | 21760 | 3584 |
| TDP | 600 W | 220 W |
| Ray tracing cores | 170 | 56 |
| 3DMark Time Spy | 44000 | 16800 |
| VRAM | 32 GB | 16 GB |
| Memory bus | 512 bit | 256 bit |
Between the ROG Astral RTX 5090 OC and Radeon RX 9070, the ROG Astral RTX 5090 OC comes out ahead in cuda / stream cores / ray tracing cores, while the Radeon RX 9070 wins on tdp. Overall, the ROG Astral RTX 5090 OC scores 86.5 and the Radeon RX 9070 scores 64.9 on our Mars Score.
Which should you buy?
The ROG Astral RTX 5090 OC is the clear pick on raw spec strength, leading by 21.6 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the ROG Astral RTX 5090 OC if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are cuda / stream cores, ray tracing cores, 3dmark time spy, among others. The single most decisive one: CUDA / Stream cores — 507.14% more. 21760 vs 3584.
Pick the Radeon RX 9070 if you care most about tdp. Its strongest claims are tdp. The single most decisive one: TDP — 380.00 W less. 220 vs 600.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the ROG Astral RTX 5090 OC is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: ASUS - ROG Astral RTX 5090 OC or AMD - Radeon RX 9070?
ASUS - ROG Astral RTX 5090 OC leads the current Mars Score by 21.6 points.The more useful decision is the trade-off behind that result: compare vram, cuda / stream cores, boost clock, tdp against the way you will actually use the product.
Choose ASUS - ROG Astral RTX 5090 OC if…
ASUS - ROG Astral RTX 5090 OC has the measurable edge on cuda cores, ray tracing cores, timespy score.
Choose AMD - Radeon RX 9070 if…
AMD - Radeon RX 9070 has the measurable edge on tdp w.
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 Astral RTX 5090 OC wins
- ▲CUDA / Stream cores — 507.14% more. 21760 vs 3584.
- ▲Ray tracing cores — 203.57% more. 170 vs 56.
- ▲3DMark Time Spy — 161.90% more. 44000 vs 16800.
- ▲VRAM — 100.00% more. 32 GB vs 16 GB.
- ▲Memory bus — 100.00% more. 512 bit vs 256 bit.
- ▲Boost clock — 5.36% more. 2655 MHz vs 2520 MHz.
- ▲Has DLSS.
Why AMD - Radeon RX 9070 wins
- ▲TDP — 380.00 W less. 220 vs 600.
Spec comparison
Core
| Spec | ASUS - ROG Astral RTX 5090 OC | AMD - Radeon RX 9070 |
|---|---|---|
| Chipset | GB202 | Navi 48 |
| Base clockⓘ | 2017 MHz | 2070 MHzlead |
| Boost clockⓘ | 2655 MHzlead | 2520 MHz |
| CUDA / Stream coresⓘ | 21760lead | 3584 |
| Ray tracing coresⓘ | 170lead | 56 |
Memory
| Spec | ASUS - ROG Astral RTX 5090 OC | AMD - Radeon RX 9070 |
|---|---|---|
| VRAMⓘ | 32 GBlead | 16 GB |
| VRAM typeⓘ | GDDR7lead | GDDR6 |
| Memory busⓘ | 512 bitlead | 256 bit |
Power & Form
| Spec | ASUS - ROG Astral RTX 5090 OC | AMD - Radeon RX 9070 |
|---|---|---|
| TDPⓘ | 600 W | 220 Wlead |
| Recommended PSUⓘ | 1200 W | 650 Wlead |
| Length | 357 mm | 287 mmlead |
| Slot size | 4-slot | 2-slot |
Benchmarks
| Spec | ASUS - ROG Astral RTX 5090 OC | AMD - Radeon RX 9070 |
|---|---|---|
| 3DMark Time Spyⓘ | 44000lead | 16800 |
| DLSSⓘ | truelead | false |
| FSRⓘ | false | truelead |
Frequently asked
Which has more VRAM, ROG Astral RTX 5090 OC or Radeon RX 9070?+
ROG Astral RTX 5090 OC ships with 32GB GDDR7 vs 16GB.
Which scores higher in 3DMark Time Spy, ROG Astral RTX 5090 OC or Radeon RX 9070?+
ROG Astral RTX 5090 OC scores 44000 vs 16800.
Which draws less power, ROG Astral RTX 5090 OC or Radeon RX 9070?+
Radeon RX 9070 draws 220W TDP vs 600W.