Can I Run Gemma 4 31B on NVIDIA GeForce RTX 3080 (10GB)?
Written by Jakub Rusinowski · Last updated July 12, 2026
No. Gemma 4 31B needs 21.3 GB at 8K context (18.7 GB weights + 2.6 GB KV cache/overhead) at Q4_K_M and the NVIDIA GeForce RTX 3080 (10GB) has only 10 GB. No quantization we publish closes a gap that size.
Get a personalized upgrade path →
The numbers
| Model | Gemma 4 31B |
| Parameters | 31B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 21.3 GB |
| NVIDIA GeForce RTX 3080 (10GB) VRAM | 10 GB |
| Verdict | Does not fit |
Gemma 4 31B on the NVIDIA GeForce RTX 3080 (10GB): VRAM by quantization
| Quant | VRAM needed | Fits 10 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 64.6 GB | ✗ No | — | — |
| Q8_0 | 35.5 GB | ✗ No | — | Build for this |
| Q6_K | 28 GB | ✗ No | — | — |
| Q5_K_M | 24.6 GB | ✗ No | — | Build for this |
| Q4_K_M | 21.3 GB | ✗ No | — | Build for this |
| Q3_K_M | 15.8 GB | ✗ No | — | — |
| Q2_K | 12.8 GB | ✗ No | — | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 10 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA GeForce RTX 3080 (10GB): 8K 21.3 GB ✗ · 32K 26.8 GB ✗ · 128K 48.5 GB ✗. Past 8K it no longer fits 10 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
What to do next
Either step down to a smaller size in this family, or move to a NVIDIA GeForce RTX 5090 Laptop GPU (24 GB), the card with the least memory we track that holds it.
No compatible GPU? Gemma 4 31B on 32 GB of system RAM, CPU only: runs comfortably.
Gemma 4 31B needs ~21 GB but this GPU has 10 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
Affiliate links — we may earn a commission if you sign up, at no extra cost to you.
Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Other Gemma 4 sizes on the NVIDIA GeForce RTX 3080 (10GB)
- Gemma 4 26B-A4B — does not fit (18.2 GB)
- Gemma 4 12B (Unified) — runs (9.4 GB)
- Gemma 4 E4B — runs (6.4 GB)
- Gemma 4 E2B — runs (4.7 GB)
Gemma 4 31B on nearby hardware
- AMD Radeon RX 9060 XT 8GB (8 GB) — does not fit
- NVIDIA GeForce RTX 5070 (12 GB) — does not fit
All Gemma 4 sizes on the NVIDIA GeForce RTX 3080 (10GB) | Gemma 4 31B model page | NVIDIA GeForce RTX 3080 (10GB) GPU page | VRAM calculator | Check your hardware