Can GeForce RTX 4090 run gpt-oss-20b?

✅ Yes, runs great!

Fits in GPU memory (~71 tok/s)

Memory Needed
21.1 GB
Q6_K, 8K context
Est. Speed
~71 tok/s
Generation speed
GPU VRAM
24 GB
GDDR6X

💡 Recommended

For best quality that fits: Q6_K quantization

All Quantizations

Q8_0
Runs slowly
Memory
26.2 GB
Speed
11 tok/s
Bits/weight
8.5
Quality
Highest
Q6_K
RECOMMENDED
Runs great
Memory
21.1 GB
Speed
71 tok/s
Bits/weight
6.6
Quality
High
Q5_K_M
Runs great
Memory
19.0 GB
Speed
83 tok/s
Bits/weight
5.7
Quality
High
Q4_K_M
Runs great
Memory
16.6 GB
Speed
97 tok/s
Bits/weight
4.85
Quality
Good
Q3_K_M
Runs great
Memory
14.7 GB
Speed
121 tok/s
Bits/weight
3.9
Quality
Lower
Q2_K
Runs great
Memory
11.7 GB
Speed
157 tok/s
Bits/weight
3
Quality
Lower

Run with Ollama

ollama run gpt-oss:20b-q6_k

This will download and run the Q6_K quantization

View all GPUs for gpt-oss-20bView all models for GeForce RTX 4090