Architect's technical teardown: VRAM capacity, memory bandwidth, TDP, and AI throughput — compared head-to-head for local LLM workloads.
The legendary used-market GOAT. 24GB VRAM at a fraction of the cost of 4090/5090. Still handles 70B models with ease.
Efficient 16GB VRAM entry point. Ideal for Stable Diffusion XL and memory-intensive creative AI tasks.
| Metric | NVIDIA GeForce RTX 3090 | AMD Radeon RX 9070 |
|---|---|---|
| VRAM | 24GB | 16GB |
| Memory Bandwidth | 936 GB/s | 640 GB/s |
| AI Throughput (TOPS) | 285 | 289 |
| TDP (Power Draw) | 350W | 220W |
| Est. Price | $749.99 | $469.99 |