RTX 2080 Super vs RX M 6400
Head-to-head specifications
| Metric | RTX 2080 Super | RX M 6400 | Difference |
|---|---|---|---|
| 3DMark Time Spy | 3,902 | 1,272 | +206.8% |
| Avg FPS @ 1080p | 46 | 28 | +64.3% |
| Avg FPS @ 1440p | 26 | 15 | +73.3% |
| Avg FPS @ 4K | 14 | 8 | +75.0% |
| FP32 compute (TFLOPS) | 11.2 | 3.0 | +268.0% |
| VRAM | 8 GB GDDR6 | 4 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 448 | 112 | +300.0% |
| TDP (W) | 250 | 34 | — |
- RTX 2080 Super averages 26 fps at 1440p versus 15 fps — about 73% faster.
- RX M 6400 draws less power (34W vs 250W).
Verdict: RTX 2080 Super or RX M 6400?
RTX 2080 Super advantages
- 1440p gaming (+42%)
- 4K gaming (+43%)
- Synthetic benchmark performance (+67%)
- Video memory (+50%)
- Memory bandwidth (+75%)
RX M 6400 advantages
- Power efficiency (+86%)
Which should you choose?
- Choose the RTX 2080 Super if you game at 1440p.
- Choose the RX M 6400 if you want lower power draw, heat and noise.
- Choose the RTX 2080 Super if you game at 4K or drive a high-resolution display.
RTX 2080 Super vs RX M 6400: which should you choose?
RTX 2080 Super — NVIDIA desktop graphics card (2019, Turing) with 8 GB of GDDR6, averaging 26 fps at 1440p; launched at $699.
RX M 6400 — AMD desktop graphics card (2022, RDNA 2) with 4 GB of GDDR6, averaging 15 fps at 1440p.
RTX 2080 Super vs RX M 6400: RTX 2080 Super is faster for gaming. RTX 2080 Super averages 26 fps at 1440p versus 15 fps — about 73% faster. RX M 6400 draws less power (34W vs 250W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 2080 Super averages 26 fps against 15. At 4K (14 vs 8 fps) VRAM (8GB vs 4GB) and memory bandwidth matter more.
Power and value
Board power is 250 W versus 34 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 2080 Super better than the RX M 6400?
RTX 2080 Super is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 2080 Super averages 26 fps at 1440p versus 15 fps — about 73% faster.
What is the main difference between the RTX 2080 Super and the RX M 6400?
RTX 2080 Super averages 26 fps at 1440p versus 15 fps — about 73% faster. RX M 6400 draws less power (34W vs 250W).
Which should I choose?
Choose the RTX 2080 Super if you game at 1440p. Choose the RX M 6400 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.