GeForce RTX 4090 (used)
Out of production, still in demand: 24GB of CUDA keeps its used price stubborn.
Average in-stock listing $4,642 on Sep 26, 2026 (lowest $3,300), 2.9 times the $1,599 launch MSRP. See its price history. The links open live listings. Amazon links may earn us a commission.
Will it run your models?
VRAM meterLocal AI fit: 32B-class models. Rule of thumb for 4-bit quantized models; context length and other apps eat into the same memory.
Open models that fit comfortably at Q4
- DeepSeek R1 Distill Qwen 32B 32.8B · 18.3 GiB · headroom 4.2 GiB
- Qwen3 32B 32.8B · 18.3 GiB · headroom 4.2 GiB
- Qwen2.5 Coder 32B Instruct 32.5B · 18.2 GiB · headroom 4.3 GiB
- Gemma 4 31B IT 31.3B · 17.5 GiB · headroom 5.0 GiB
- Qwen3 30B-A3B 30.5B · 17.0 GiB · headroom 5.5 GiB
- GLM-4.7-Flash 30B · 16.8 GiB · headroom 5.7 GiB
- Qwen3.6 27B 27.8B · 15.5 GiB · headroom 7.0 GiB
- Gemma 3 27B IT 27.4B · 15.3 GiB · headroom 7.2 GiB
Tight but possible: Qwen3.6 35B-A3B.
What it costs to run
450W of board power, 4 hours a day under load, priced at the residential electricity rate where you live. Pick a state and the numbers update.
Board power is the rated maximum; real gaming load usually sits below it and idle is a few watts, so treat this as the ceiling. Rates: EIA residential average, May 2026. See every card ranked by running cost →
Why you buy it
- 24GB with full CUDA support
- Still second only to the 5090 in games
- Holds value if you resell later
Why you hesitate
- Used prices stay close to what it cost new
- 450W plus the 12VHPWR connector deserves inspection
- No warranty on most listings
The editor's take
Discontinued, yet used prices barely fell, because AI demand for 24GB CUDA cards did not. It still beats everything except the 5090 in games and runs 32B-class models comfortably. Buy from listings with the original box and a return window; mining-era paranoia does not apply here, but AI-farm duty does. Check the power connector's condition, this generation's known weak point.
Decided?
Live listings for the GeForce RTX 4090 (used), straight from the retailers.
Average in-stock listing $4,642 on Sep 26, 2026 (lowest $3,300), 2.9 times the $1,599 launch MSRP. See its price history. Amazon links may earn us a commission.