GPU × local model compatibility
Can RTX 4090 24GB run Google Gemma 3 27B IT?
Yes — with limited memory headroom.
Gemma 3 27B is close to the 24GB boundary, so quantization and context length determine whether the RTX 4090 is comfortable or tight.
23.08GBVRAM required
24.00GBAvailable memory
0.92GBMemory headroom
Q4_K_MRecommended quantization
8KContext
A lighter Q3_K_M / 8K configuration also fits.
Calculated estimate, not a measured benchmark.