Architect's technical teardown: VRAM capacity, memory bandwidth, TDP, and AI throughput — compared head-to-head for local LLM workloads.
NVIDIA's Blackwell flagship featuring 32GB of high-speed GDDR7 memory. Designed for massive LLM training and high-precision FP8 inference at scale.
High value 12GB performer. Excellent efficiency and enough VRAM for 8B models with high-context K-V cache needs.
| Metric | NVIDIA GeForce RTX 5090 | NVIDIA GeForce RTX 4070 Super |
|---|---|---|
| VRAM | 32GB | 12GB |
| Memory Bandwidth | 1792 GB/s | 504 GB/s |
| AI Throughput (TOPS) | 3352 | 568 |
| TDP (Power Draw) | 575W | 220W |
| Est. Price | $2,049.99 | $609.99 |