RTX 5090 D vs RTX 4070 Mobile
Head-to-head specifications
| Metric | RTX 5090 D | RTX 4070 Mobile | Difference |
|---|---|---|---|
| 3DMark Time Spy | 40,000 | 9,904 | +303.9% |
| Avg FPS @ 1080p | 286 | 86 | +232.6% |
| Avg FPS @ 1440p | 183 | 53 | +245.3% |
| Avg FPS @ 4K | 105 | 29 | +262.1% |
| FP32 compute (TFLOPS) | 104.8 | 24.8 | +323.1% |
| VRAM | 32 GB GDDR7 | 12 GB GDDR6X | — |
| Memory bandwidth (GB/s) | 1,792 | 504 | +255.6% |
| TDP (W) | 575 | 120 | — |
| Stable Diffusion (it/s) | 41.9 | 9.9 | +323.2% |
| LLM inference (tokens/s) | 143 | 40 | +257.5% |
- RTX 5090 D averages 183 fps at 1440p versus 53 fps — about 245% faster.
- RTX 4070 Mobile draws less power (120W vs 575W).
Verdict: RTX 5090 D or RTX 4070 Mobile?
RTX 5090 D advantages
- 1440p gaming (+71%)
- 4K gaming (+72%)
- Synthetic benchmark performance (+75%)
- Video memory (+63%)
- Memory bandwidth (+72%)
- AI image generation (+76%)
- Local LLM inference (+72%)
RTX 4070 Mobile advantages
- Power efficiency (+79%)
Which should you choose?
- Choose the RTX 5090 D if you game at 1440p.
- Choose the RTX 4070 Mobile if you want lower power draw, heat and noise.
- Choose the RTX 5090 D if you game at 4K or drive a high-resolution display.
RTX 5090 D vs RTX 4070 Mobile: which should you choose?
RTX 5090 D — NVIDIA desktop graphics card (2025, Blackwell) with 32 GB of GDDR7, averaging 183 fps at 1440p; launched at $2,299.
RTX 4070 Mobile — NVIDIA laptop graphics card (2023, Ada Lovelace) with 12 GB of GDDR6X, averaging 53 fps at 1440p.
RTX 5090 D vs RTX 4070 Mobile: RTX 5090 D is faster for gaming. RTX 5090 D averages 183 fps at 1440p versus 53 fps — about 245% faster. RTX 4070 Mobile draws less power (120W vs 575W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RTX 5090 D averages 183 fps against 53. At 4K (105 vs 29 fps) VRAM (32GB vs 12GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RTX 5090 D is quicker for AI image generation (41.9 vs 9.9 it/s in Stable Diffusion) and local LLM inference (143 vs 40 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 575 W versus 120 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 5090 D better than the RTX 4070 Mobile?
RTX 5090 D is the clearly stronger overall choice, winning most of the dimensions that matter. RTX 5090 D averages 183 fps at 1440p versus 53 fps — about 245% faster.
What is the main difference between the RTX 5090 D and the RTX 4070 Mobile?
RTX 5090 D averages 183 fps at 1440p versus 53 fps — about 245% faster. RTX 4070 Mobile draws less power (120W vs 575W).
Which should I choose?
Choose the RTX 5090 D if you game at 1440p. Choose the RTX 4070 Mobile 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.