Arc B750 vs RX M 6400
Head-to-head specifications
| Metric | Arc B750 | RX M 6400 | Difference |
|---|---|---|---|
| 3DMark Time Spy | 7,224 | 1,272 | +467.9% |
| Avg FPS @ 1080p | 68 | 28 | +142.9% |
| Avg FPS @ 1440p | 41 | 15 | +173.3% |
| Avg FPS @ 4K | 23 | 8 | +187.5% |
| FP32 compute (TFLOPS) | 17.2 | 3.0 | +467.7% |
| VRAM | 16 GB GDDR6 | 4 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 448 | 112 | +300.0% |
| TDP (W) | 225 | 34 | — |
- Arc B750 averages 41 fps at 1440p versus 15 fps — about 173% faster.
- RX M 6400 draws less power (34W vs 225W).
Verdict: Arc B750 or RX M 6400?
Arc B750 advantages
- 1440p gaming (+63%)
- 4K gaming (+65%)
- Synthetic benchmark performance (+82%)
- Video memory (+75%)
- Memory bandwidth (+75%)
RX M 6400 advantages
- Power efficiency (+85%)
Which should you choose?
- Choose the Arc B750 if you game at 1440p.
- Choose the RX M 6400 if you want lower power draw, heat and noise.
- Choose the Arc B750 if you game at 4K or drive a high-resolution display.
Arc B750 vs RX M 6400: which should you choose?
Arc B750 — Intel desktop graphics card (2025, Battlemage) with 16 GB of GDDR6, averaging 41 fps at 1440p; launched at $349.
RX M 6400 — AMD desktop graphics card (2022, RDNA 2) with 4 GB of GDDR6, averaging 15 fps at 1440p.
Arc B750 vs RX M 6400: Arc B750 is faster for gaming. Arc B750 averages 41 fps at 1440p versus 15 fps — about 173% faster. RX M 6400 draws less power (34W vs 225W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the Arc B750 averages 41 fps against 15. At 4K (23 vs 8 fps) VRAM (16GB vs 4GB) and memory bandwidth matter more.
Power and value
Board power is 225 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 Arc B750 better than the RX M 6400?
Arc B750 is the clearly stronger overall choice, winning most of the dimensions that matter. Arc B750 averages 41 fps at 1440p versus 15 fps — about 173% faster.
What is the main difference between the Arc B750 and the RX M 6400?
Arc B750 averages 41 fps at 1440p versus 15 fps — about 173% faster. RX M 6400 draws less power (34W vs 225W).
Which should I choose?
Choose the Arc B750 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.