AMD · 16 GB GDDR6 · 576 GB/s bandwidth ·
Google · 27.4B · model ctx up to 128K
No — gemma-3-27b-it at Q4 needs ≈ 18.79 GB even at 4K context, beyond the RX 7900 GRE 16GB's 16 GB GDDR6. It would only run with heavy CPU/disk offload. Decode at Q4/8K: ≈ 21.3 tok/s (estimated, batch 1). FP16 needs ≈ 61.24 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.
Fit & speed by quant and context
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
18.79 GB
No
27.9est.
Q4
8K default
21.51 GB
No
21.3est.
Q4
32K
37.83 GB
No
6.9est.
FP16
4K
58.52 GB
No
0.8est.
FP16
8K default
61.24 GB
No
0.7est.
FP16
32K
77.56 GB
No
—
Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured
anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s
means the model is far beyond this card (offload-only territory).