Architect's technical teardown: VRAM capacity, memory bandwidth, TDP, and AI throughput — compared head-to-head for local LLM workloads.
The budget Blackwell entry. Optimized for 12B-14B models with the latest tensor cores for FP4 precision support.
The legendary used-market GOAT. 24GB VRAM at a fraction of the cost of 4090/5090. Still handles 70B models with ease.
| Metric | NVIDIA GeForce RTX 5070 | NVIDIA GeForce RTX 3090 |
|---|---|---|
| VRAM | 12GB | 24GB |
| Memory Bandwidth | 672 GB/s | 936 GB/s |
| AI Throughput (TOPS) | 988 | 285 |
| TDP (Power Draw) | 250W | 350W |
| Est. Price | $649.99 | $749.99 |