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.
High value 12GB performer. Excellent efficiency and enough VRAM for 8B models with high-context K-V cache needs.
| Metric | NVIDIA GeForce RTX 4090 | NVIDIA GeForce RTX 4070 Super |
|---|---|---|
| VRAM | 24GB | 12GB |
| Memory Bandwidth | 1008 GB/s | 504 GB/s |
| AI Throughput (TOPS) | 1321 | 568 |
| TDP (Power Draw) | 450W | 220W |
| Est. Price | $1,799.00 | $609.99 |