RX M 6400 vs GTX 750 Mobile
Head-to-head specifications
| Metric | RX M 6400 | GTX 750 Mobile | Difference |
|---|---|---|---|
| 3DMark Time Spy | 1,272 | 329 | +286.6% |
| Avg FPS @ 1080p | 28 | 22 | +27.3% |
| Avg FPS @ 1440p | 15 | 11 | +36.4% |
| Avg FPS @ 4K | 8 | 5 | +60.0% |
| FP32 compute (TFLOPS) | 3.0 | 0.9 | +222.3% |
| VRAM | 4 GB GDDR6 | 1 GB GDDR5 | — |
| Memory bandwidth (GB/s) | 112 | 112 | — |
| TDP (W) | 34 | 33 | — |
- RX M 6400 averages 15 fps at 1440p versus 11 fps — about 36% faster.
- GTX 750 Mobile draws less power (33W vs 34W).
Verdict: RX M 6400 or GTX 750 Mobile?
RX M 6400 advantages
- 1440p gaming (+27%)
- 4K gaming (+38%)
- Synthetic benchmark performance (+74%)
- Video memory (+75%)
GTX 750 Mobile advantages
- No decisive advantage on the tracked metrics.
Which should you choose?
- Choose the RX M 6400 if you game at 1440p.
- Choose the RX M 6400 if you game at 4K or drive a high-resolution display.
RX M 6400 vs GTX 750 Mobile: which should you choose?
RX M 6400 — AMD desktop graphics card (2022, RDNA 2) with 4 GB of GDDR6, averaging 15 fps at 1440p.
GTX 750 Mobile — NVIDIA laptop graphics card (2014, Maxwell) with 1 GB of GDDR5, averaging 11 fps at 1440p.
RX M 6400 vs GTX 750 Mobile: RX M 6400 is faster for gaming. RX M 6400 averages 15 fps at 1440p versus 11 fps — about 36% faster. GTX 750 Mobile draws less power (33W vs 34W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RX M 6400 averages 15 fps against 11. At 4K (8 vs 5 fps) VRAM (4GB vs 1GB) and memory bandwidth matter more.
Power and value
Board power is 34 W versus 33 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 6400 better than the GTX 750 Mobile?
RX M 6400 is the clearly stronger overall choice, winning most of the dimensions that matter. RX M 6400 averages 15 fps at 1440p versus 11 fps — about 36% faster.
What is the main difference between the RX M 6400 and the GTX 750 Mobile?
RX M 6400 averages 15 fps at 1440p versus 11 fps — about 36% faster. GTX 750 Mobile draws less power (33W vs 34W).
Which should I choose?
Choose the RX M 6400 if you game at 1440p. Choose the RX M 6400 if you game at 4K or drive a high-resolution display.
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.