OwnRig

Gemma 3 27B on NVIDIA GeForce RTX 5090

NVIDIA GeForce RTX 5090 runs Gemma 3 27B excellently at 35 tok/s at Q5_K_M. This is a strong pairing.

Model Size

27.23B

Device VRAM

32 GB

Bandwidth

1792 GB/s

Quantizations Tested

1

Performance by Quantization

Each row shows Gemma 3 27B performance at a different quality level on NVIDIA GeForce RTX 5090.

QuantizationSpeedTTFTFits in VRAMRatingConfidence
Q5_K_M35 tok/s250ms✓ YesExcellentestimated

Notes

Q5_K_M

32GB allows Q5_K_M with 12.7GB headroom. 1792 GB/s bandwidth delivers excellent throughput.

About Gemma 3 27B

Gemma 3 27B (27.23B) is a chat, coding, reasoning, multi-purpose model. Google's strongest open-weight model. Excellent reasoning and instruction following. At 27B parameters, it's the sweet spot between 8B models (too limited) and 70B models (too expensive). Strong multilingual support. Fits on 24GB GPUs at Q4.

View all Gemma 3 27B hardware options →

About NVIDIA GeForce RTX 5090

NVIDIA GeForce RTX 5090 has 32 GB at 1792 GB/s. Street price: $2,199.

See all models NVIDIA GeForce RTX 5090 can run →

Builds with NVIDIA GeForce RTX 5090

Source: Performance estimates based on model size and device bandwidth (2026-03-15)

Data last updated: 2026-03-15