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.
The Blackwell prosumer sweet spot. GDDR7 bandwidth delivers exceptional tokens-per-second for 30B+ parameter models in a single-GPU configuration.
| Metric | NVIDIA GeForce RTX 5090 | NVIDIA GeForce RTX 5080 |
|---|---|---|
| VRAM | 32GB | 16GB |
| Memory Bandwidth | 1792 GB/s | 960 GB/s |
| AI Throughput (TOPS) | 3352 | 1801 |
| TDP (Power Draw) | 575W | 360W |
| Est. Price | $2,049.99 | $1,349.99 |