R9 M390X vs RTX 4070 Max-Q
Head-to-head specifications
| Metric | R9 M390X | RTX 4070 Max-Q | Difference |
|---|---|---|---|
| 3DMark Time Spy | 1,435 | 8,159 | -82.4% |
| Avg FPS @ 1080p | 29 | 74 | -60.8% |
| Avg FPS @ 1440p | 16 | 45 | -64.4% |
| Avg FPS @ 4K | 8 | 25 | -68.0% |
| FP32 compute (TFLOPS) | 4.1 | 20.4 | -79.9% |
| VRAM | 4 GB GDDR5 | 12 GB GDDR6X | — |
| Memory bandwidth (GB/s) | 160 | 504 | -68.3% |
| TDP (W) | 125 | 90 | — |
- RTX 4070 Max-Q averages 45 fps at 1440p versus 16 fps — about 64% faster.
- RTX 4070 Max-Q draws less power (90W vs 125W).
Verdict: R9 M390X or RTX 4070 Max-Q?
R9 M390X advantages
- No decisive advantage on the tracked metrics.
RTX 4070 Max-Q advantages
- 1440p gaming (+64%)
- 4K gaming (+68%)
- Synthetic benchmark performance (+82%)
- Video memory (+67%)
- Memory bandwidth (+68%)
- Power efficiency (+28%)
Which should you choose?
- Choose the RTX 4070 Max-Q if you game at 1440p.
R9 M390X vs RTX 4070 Max-Q: which should you choose?
R9 M390X — AMD desktop graphics card (2015, GCN 1.0) with 4 GB of GDDR5, averaging 16 fps at 1440p.
RTX 4070 Max-Q — NVIDIA laptop graphics card (2023, Ada Lovelace) with 12 GB of GDDR6X, averaging 45 fps at 1440p.
R9 M390X vs RTX 4070 Max-Q: RTX 4070 Max-Q is faster for gaming. RTX 4070 Max-Q averages 45 fps at 1440p versus 16 fps — about 64% faster. RTX 4070 Max-Q draws less power (90W vs 125W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 4070 Max-Q averages 45 fps against 16. At 4K (8 vs 25 fps) VRAM (4GB vs 12GB) and memory bandwidth matter more.
Power and value
Board power is 125 W versus 90 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 R9 M390X better than the RTX 4070 Max-Q?
RTX 4070 Max-Q is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 4070 Max-Q averages 45 fps at 1440p versus 16 fps — about 64% faster.
What is the main difference between the R9 M390X and the RTX 4070 Max-Q?
RTX 4070 Max-Q averages 45 fps at 1440p versus 16 fps — about 64% faster. RTX 4070 Max-Q draws less power (90W vs 125W).
Which should I choose?
Choose the RTX 4070 Max-Q 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.