RTX 4090 vs RTX 3080 12GB Max-Q
Head-to-head specifications
| Metric | RTX 4090 | RTX 3080 12GB Max-Q | Difference |
|---|---|---|---|
| 3DMark Time Spy | 33,032 | 8,580 | +285.0% |
| Avg FPS @ 1080p | 240 | 77 | +211.7% |
| Avg FPS @ 1440p | 153 | 47 | +225.5% |
| Avg FPS @ 4K | 87 | 26 | +234.6% |
| FP32 compute (TFLOPS) | 82.6 | 21.5 | +285.0% |
| VRAM | 24 GB GDDR6X | 12 GB GDDR6X | — |
| Memory bandwidth (GB/s) | 1,008 | 1,008 | — |
| TDP (W) | 450 | 157 | — |
| Stable Diffusion (it/s) | 33.0 | 8.6 | +283.7% |
| LLM inference (tokens/s) | 80 | 80 | — |
- RTX 4090 averages 153 fps at 1440p versus 47 fps — about 226% faster.
- RTX 3080 12GB Max-Q draws less power (157W vs 450W).
Verdict: RTX 4090 or RTX 3080 12GB Max-Q?
RTX 4090 advantages
- 1440p gaming (+69%)
- 4K gaming (+70%)
- Synthetic benchmark performance (+74%)
- Video memory (+50%)
- AI image generation (+74%)
RTX 3080 12GB Max-Q advantages
- Power efficiency (+65%)
Which should you choose?
- Choose the RTX 4090 if you game at 1440p.
- Choose the RTX 3080 12GB Max-Q if you want lower power draw, heat and noise.
- Choose the RTX 4090 if you game at 4K or drive a high-resolution display.
RTX 4090 vs RTX 3080 12GB Max-Q: which should you choose?
RTX 4090 — NVIDIA desktop graphics card (2022, Ada Lovelace) with 24 GB of GDDR6X, averaging 153 fps at 1440p; launched at $1,599.
RTX 3080 12GB Max-Q — NVIDIA laptop graphics card (2022, Ampere) with 12 GB of GDDR6X, averaging 47 fps at 1440p.
RTX 4090 vs RTX 3080 12GB Max-Q: RTX 4090 is faster for gaming. RTX 4090 averages 153 fps at 1440p versus 47 fps — about 226% faster. RTX 3080 12GB Max-Q draws less power (157W vs 450W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 4090 averages 153 fps against 47. At 4K (87 vs 26 fps) VRAM (24GB vs 12GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RTX 4090 is quicker for AI image generation (33.0 vs 8.6 it/s in Stable Diffusion) and local LLM inference (80 vs 80 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 450 W versus 157 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 4090 better than the RTX 3080 12GB Max-Q?
RTX 4090 is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 4090 averages 153 fps at 1440p versus 47 fps — about 226% faster.
What is the main difference between the RTX 4090 and the RTX 3080 12GB Max-Q?
RTX 4090 averages 153 fps at 1440p versus 47 fps — about 226% faster. RTX 3080 12GB Max-Q draws less power (157W vs 450W).
Which should I choose?
Choose the RTX 4090 if you game at 1440p. Choose the RTX 3080 12GB Max-Q 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.