Architect's technical teardown: VRAM capacity, memory bandwidth, TDP, and AI throughput — compared head-to-head for local LLM workloads.
The previous generation's king. 24GB VRAM and high CUDA counts remain the industry standard for consumer AI development.
Efficient 16GB VRAM entry point. Ideal for Stable Diffusion XL and memory-intensive creative AI tasks.
| Metric | NVIDIA GeForce RTX 4090 | AMD Radeon RX 9070 |
|---|---|---|
| VRAM | 24GB | 16GB |
| Memory Bandwidth | 1008 GB/s | 640 GB/s |
| AI Throughput (TOPS) | 1321 | 289 |
| TDP (Power Draw) | 450W | 220W |
| Est. Price | $1,799.00 | $469.99 |