RTX 3070 vs RTX 4080 Super Mobile
Head-to-head specifications
| Metric | RTX 3070 | RTX 4080 Super Mobile | Difference |
|---|---|---|---|
| 3DMark Time Spy | 8,759 | 17,752 | -50.7% |
| Avg FPS @ 1080p | 78 | 138 | -43.5% |
| Avg FPS @ 1440p | 48 | 87 | -44.8% |
| Avg FPS @ 4K | 26 | 49 | -46.9% |
| FP32 compute (TFLOPS) | 20.4 | 44.4 | -54.1% |
| VRAM | 8 GB GDDR6 | 16 GB GDDR6X | — |
| Memory bandwidth (GB/s) | 448 | 672 | -33.3% |
| TDP (W) | 220 | 192 | — |
| Stable Diffusion (it/s) | 8.1 | 17.8 | -54.5% |
| LLM inference (tokens/s) | 22 | 53 | -58.5% |
- RTX 4080 Super Mobile averages 87 fps at 1440p versus 48 fps — about 45% faster.
- RTX 4080 Super Mobile draws less power (192W vs 220W).
Verdict: RTX 3070 or RTX 4080 Super Mobile?
RTX 3070 advantages
- No decisive advantage on the tracked metrics.
RTX 4080 Super Mobile advantages
- 1440p gaming (+45%)
- 4K gaming (+47%)
- Synthetic benchmark performance (+51%)
- Video memory (+50%)
- Memory bandwidth (+33%)
- AI image generation (+54%)
- Local LLM inference (+58%)
- Power efficiency (+13%)
Which should you choose?
- Choose the RTX 4080 Super Mobile if you game at 1440p.
RTX 3070 vs RTX 4080 Super Mobile: which should you choose?
RTX 3070 — NVIDIA desktop graphics card (2020, Ampere) with 8 GB of GDDR6, averaging 48 fps at 1440p; launched at $499.
RTX 4080 Super Mobile — NVIDIA laptop graphics card (2024, Ada Lovelace) with 16 GB of GDDR6X, averaging 87 fps at 1440p.
RTX 3070 vs RTX 4080 Super Mobile: RTX 4080 Super Mobile is faster for gaming. RTX 4080 Super Mobile averages 87 fps at 1440p versus 48 fps — about 45% faster. RTX 4080 Super Mobile draws less power (192W vs 220W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 4080 Super Mobile averages 87 fps against 48. At 4K (26 vs 49 fps) VRAM (8GB vs 16GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RTX 4080 Super Mobile is quicker for AI image generation (17.8 vs 8.1 it/s in Stable Diffusion) and local LLM inference (53 vs 22 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 220 W versus 192 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 3070 better than the RTX 4080 Super Mobile?
RTX 4080 Super Mobile is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 4080 Super Mobile averages 87 fps at 1440p versus 48 fps — about 45% faster.
What is the main difference between the RTX 3070 and the RTX 4080 Super Mobile?
RTX 4080 Super Mobile averages 87 fps at 1440p versus 48 fps — about 45% faster. RTX 4080 Super Mobile draws less power (192W vs 220W).
Which should I choose?
Choose the RTX 4080 Super Mobile 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.