NVIDIA · 32 GB GDDR7 · 1792 GB/s bandwidth ·
Google · 5.1B · model ctx up to 128K
Yes — the RTX 5090 32GB (32 GB GDDR7) can run gemma-4-E2B-it. At Q4 with the default 8K context it needs ≈ 4.83 GB VRAM (weights 2.81 GB + KV cache 1.02 GB + 1 GB runtime overhead), which fits within 32 GB. Decode at Q4/8K: ≈ 223.6 tok/s (estimated, batch 1). FP16 (≈ 12.22 GB) also fits, at ≈ 61.5 tok/s (estimated). 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
4.32 GB
Yes
223.6est.
Q4
8K default
4.83 GB
Yes
223.6est.
Q4
32K
7.88 GB
Yes
223.6est.
FP16
4K
11.71 GB
Yes
61.5est.
FP16
8K default
12.22 GB
Yes
61.5est.
FP16
32K
15.28 GB
Yes
61.5est.
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).