RTX 5090 vs RX M 6900 XT
Head-to-head specifications
| Metric | RTX 5090 | RX M 6900 XT | Difference |
|---|---|---|---|
| 3DMark Time Spy | 40,000 | 8,223 | +386.4% |
| Avg FPS @ 1080p | 286 | 74 | +286.5% |
| Avg FPS @ 1440p | 183 | 45 | +306.7% |
| Avg FPS @ 4K | 105 | 25 | +320.0% |
| FP32 compute (TFLOPS) | 104.8 | 19.6 | +435.0% |
| VRAM | 32 GB GDDR7 | 16 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 1,792 | 448 | +300.0% |
| TDP (W) | 575 | 195 | — |
| Stable Diffusion (it/s) | 41.9 | 2.9 | +1,344.8% |
| LLM inference (tokens/s) | 143 | 35 | +308.6% |
- RTX 5090 averages 183 fps at 1440p versus 45 fps — about 307% faster.
- RX M 6900 XT draws less power (195W vs 575W).
Verdict: RTX 5090 or RX M 6900 XT?
RTX 5090 advantages
- 1440p gaming (+75%)
- 4K gaming (+76%)
- Synthetic benchmark performance (+79%)
- Video memory (+50%)
- Memory bandwidth (+75%)
- AI image generation (+93%)
- Local LLM inference (+76%)
RX M 6900 XT advantages
- Power efficiency (+66%)
Which should you choose?
- Choose the RTX 5090 if you game at 1440p.
- Choose the RX M 6900 XT if you want lower power draw, heat and noise.
- Choose the RTX 5090 if you game at 4K or drive a high-resolution display.
RTX 5090 vs RX M 6900 XT: which should you choose?
RTX 5090 — NVIDIA desktop graphics card (2025, Blackwell) with 32 GB of GDDR7, averaging 183 fps at 1440p; launched at $1,999.
RX M 6900 XT — AMD desktop graphics card (2020, RDNA 2) with 16 GB of GDDR6, averaging 45 fps at 1440p.
RTX 5090 vs RX M 6900 XT: RTX 5090 is faster for gaming. RTX 5090 averages 183 fps at 1440p versus 45 fps — about 307% faster. RX M 6900 XT draws less power (195W vs 575W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 5090 averages 183 fps against 45. At 4K (105 vs 25 fps) VRAM (32GB vs 16GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RTX 5090 is quicker for AI image generation (41.9 vs 2.9 it/s in Stable Diffusion) and local LLM inference (143 vs 35 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 575 W versus 195 W, which affects PSU headroom, case cooling and noise.
The verdict
Both are credible choices in the graphics card comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the RTX 5090 better than the RX M 6900 XT?
RTX 5090 is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 5090 averages 183 fps at 1440p versus 45 fps — about 307% faster.
What is the main difference between the RTX 5090 and the RX M 6900 XT?
RTX 5090 averages 183 fps at 1440p versus 45 fps — about 307% faster. RX M 6900 XT draws less power (195W vs 575W).
Which should I choose?
Choose the RTX 5090 if you game at 1440p. Choose the RX M 6900 XT if you want lower power draw, heat and noise.
Methodology
Graphics cards are compared on 3DMark Time Spy scores, average gaming frame rates at 1080p/1440p/4K, FP32 compute throughput, VRAM capacity and type, memory bandwidth, board power (TDP) and launch MSRP — plus AI workload throughput (Stable Diffusion iterations/s and local LLM tokens/s) where measured. Vintage and server GPUs without modern benchmark results are compared on specifications only, clearly labelled. Frame rates are averages across a game suite at high settings; specific titles vary.