RX M 580 vs RX 6950 XT
Head-to-head specifications
| Metric | RX M 580 | RX 6950 XT | Difference |
|---|---|---|---|
| 3DMark Time Spy | 1,837 | 9,933 | -81.5% |
| Avg FPS @ 1080p | 32 | 86 | -62.8% |
| Avg FPS @ 1440p | 17 | 53 | -67.9% |
| Avg FPS @ 4K | 9 | 29 | -69.0% |
| FP32 compute (TFLOPS) | 5.3 | 23.7 | -77.8% |
| VRAM | 8 GB GDDR5 | 16 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 224 | 448 | -50.0% |
| TDP (W) | 120 | 335 | — |
- RX 6950 XT averages 53 fps at 1440p versus 17 fps — about 68% faster.
- RX M 580 draws less power (120W vs 335W).
Verdict: RX M 580 or RX 6950 XT?
RX M 580 advantages
- Power efficiency (+64%)
RX 6950 XT advantages
- 1440p gaming (+68%)
- 4K gaming (+69%)
- Synthetic benchmark performance (+82%)
- Video memory (+50%)
- Memory bandwidth (+50%)
Which should you choose?
- Choose the RX M 580 if you want lower power draw, heat and noise.
- Choose the RX 6950 XT if you game at 1440p.
RX M 580 vs RX 6950 XT: which should you choose?
RX M 580 — AMD desktop graphics card (2017, Polaris) with 8 GB of GDDR5, averaging 17 fps at 1440p.
RX 6950 XT — AMD desktop graphics card (2022, RDNA 2) with 16 GB of GDDR6, averaging 53 fps at 1440p; launched at $1,099.
RX M 580 vs RX 6950 XT: RX 6950 XT is faster for gaming. RX 6950 XT averages 53 fps at 1440p versus 17 fps — about 68% faster. RX M 580 draws less power (120W vs 335W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RX 6950 XT averages 53 fps against 17. At 4K (9 vs 29 fps) VRAM (8GB vs 16GB) and memory bandwidth matter more.
Power and value
Board power is 120 W versus 335 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 RX M 580 better than the RX 6950 XT?
RX 6950 XT is the clearly stronger overall choice, winning most of the dimensions that matter. RX 6950 XT averages 53 fps at 1440p versus 17 fps — about 68% faster.
What is the main difference between the RX M 580 and the RX 6950 XT?
RX 6950 XT averages 53 fps at 1440p versus 17 fps — about 68% faster. RX M 580 draws less power (120W vs 335W).
Which should I choose?
Choose the RX M 580 if you want lower power draw, heat and noise. Choose the RX 6950 XT if you game at 1440p.
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.