RTX 3080 10GB vs RTX 4070
A used RTX 3080 10GB sells for a median $420 and an RTX 4070 for $610 on US eBay, so the RTX 4070 costs 45% more. In games the RTX 4070 is about 8% faster. The RTX 3080 10GB is the better value per dollar. For local AI the RTX 4070 has 12GB of VRAM versus 10GB, enough for 14B models instead of 8B ones at 4-bit. Prices as of 2026-10-31.
| RTX 3080 10GB | RTX 4070 | |
|---|---|---|
| Sold median | $420 | $610 |
| Typical range | $400–$450 | $561–$632 |
| Sales, last 14–30 days | 192 | 81 |
| Past week | Up 2% | Up 2% |
| VRAM | 10GB | 12GB |
| Runs at 4-bit | 8B models | 14B models |
| Gaming speed (4070 = 100) | 93 | 100 |
| Board power | 320W | 200W |
| $ per speed point | $5 | $6 |
| $ per GB VRAM | $42 | $51 |
Gaming speed is relative 1440p performance from public review averages, for ranking only. Prices are US eBay sold medians with shipping, updated daily, last on 2026-10-31.