GeForce RTX 3090 (used)
The budget ticket to 24GB of CUDA. The local AI community's favorite used card for a reason.
Average in-stock listing $2,399 on Sep 26, 2026 (lowest $1,800), 1.6 times the $1,499 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
350W 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
- Cheapest 24GB CUDA card on the market
- NVLink support: two cards pool to 48GB
- Deep community knowledge for AI setups
Why you hesitate
- 2020-era gaming performance
- Many units lived hard lives in mining or render farms
- 350W of five-year-old silicon
The editor's take
Two generations old and still the cheapest reliable path to 24GB with CUDA, which is why AI hobbyists keep buying every one that hits the market. Gaming performance is around upper-midrange today, but for model inference the memory is what matters and the memory is why you are here. NVLink pairs two of them for 48GB, a trick nothing newer at this price can do.
Decided?
Live listings for the GeForce RTX 3090 (used), straight from the retailers.
Average in-stock listing $2,399 on Sep 26, 2026 (lowest $1,800), 1.6 times the $1,499 launch MSRP. See its price history. Amazon links may earn us a commission.