RTX 3070 Mobile vs RX 7800 XT
Head-to-head specifications
| Metric | RTX 3070 Mobile | RX 7800 XT | Difference |
|---|---|---|---|
| 3DMark Time Spy | 7,443 | 7,837 | -5.0% |
| Avg FPS @ 1080p | 69 | 72 | -4.2% |
| Avg FPS @ 1440p | 42 | 44 | -4.5% |
| Avg FPS @ 4K | 23 | 24 | -4.2% |
| FP32 compute (TFLOPS) | 17.3 | 18.7 | -7.2% |
| VRAM | 8 GB GDDR6 | 16 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 448 | 448 | — |
| TDP (W) | 132 | 263 | — |
| Stable Diffusion (it/s) | 6.9 | 2.8 | +146.4% |
| LLM inference (tokens/s) | 22 | 35 | -37.1% |
- RX 7800 XT averages 44 fps at 1440p versus 42 fps — about 5% faster.
- RTX 3070 Mobile draws less power (132W vs 263W).
Verdict: RTX 3070 Mobile or RX 7800 XT?
RTX 3070 Mobile advantages
- AI image generation (+59%)
- Power efficiency (+50%)
RX 7800 XT advantages
- 1440p gaming (+5%)
- 4K gaming (+4%)
- Synthetic benchmark performance (+5%)
- Video memory (+50%)
- Local LLM inference (+37%)
Which should you choose?
- Choose the RTX 3070 Mobile if you run AI image generation locally.
- Choose the RX 7800 XT if you game at 1440p.
- Choose the RTX 3070 Mobile if you want lower power draw, heat and noise.
RTX 3070 Mobile vs RX 7800 XT: which should you choose?
RTX 3070 Mobile — NVIDIA laptop graphics card (2020, Ampere) with 8 GB of GDDR6, averaging 42 fps at 1440p.
RX 7800 XT — AMD desktop graphics card (2023, RDNA 3) with 16 GB of GDDR6, averaging 44 fps at 1440p; launched at $499.
RTX 3070 Mobile vs RX 7800 XT: RX 7800 XT is faster for gaming. RX 7800 XT averages 44 fps at 1440p versus 42 fps — about 5% faster. RTX 3070 Mobile draws less power (132W vs 263W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RX 7800 XT averages 44 fps against 42. At 4K (23 vs 24 fps) VRAM (8GB vs 16GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RTX 3070 Mobile is quicker for AI image generation (6.9 vs 2.8 it/s in Stable Diffusion) and local LLM inference (35 vs 22 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 132 W versus 263 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 Mobile better than the RX 7800 XT?
RX 7800 XT takes the overall edge, though RTX 3070 Mobile wins in specific areas worth weighing. RX 7800 XT averages 44 fps at 1440p versus 42 fps — about 5% faster.
What is the main difference between the RTX 3070 Mobile and the RX 7800 XT?
RX 7800 XT averages 44 fps at 1440p versus 42 fps — about 5% faster. RTX 3070 Mobile draws less power (132W vs 263W).
Which should I choose?
Choose the RTX 3070 Mobile if you run AI image generation locally. Choose the RX 7800 XT 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.