Can I Run StarCoder 2 15B on NVIDIA GeForce RTX 3080 (10GB)?
Written by Jakub Rusinowski · Last updated July 12, 2026
Not at Q4_K_M — that needs 10.8 GB at 8K context and the NVIDIA GeForce RTX 3080 (10GB) has 10 GB. Drop to Q3_K_M and it fits in 8.1 GB, with up to 16K of context.
Get a personalized upgrade path →
The numbers
| Model | StarCoder 2 15B |
| Parameters | 15B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 10.8 GB |
| NVIDIA GeForce RTX 3080 (10GB) VRAM | 10 GB |
| Verdict | Runs at a lower quant |
| Fits at | Q3_K_M (8.1 GB) |
| Max context | 16K |
StarCoder 2 15B on the NVIDIA GeForce RTX 3080 (10GB): VRAM by quantization
| Quant | VRAM needed | Fits 10 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 32.5 GB | ✗ No | — | — |
| Q8_0 | 17.9 GB | ✗ No | — | — |
| Q6_K | 14.2 GB | ✗ No | — | — |
| Q5_K_M | 12.5 GB | ✗ No | — | — |
| Q4_K_M | 10.8 GB | ✗ No | — | — |
| Q3_K_M | 8.1 GB | ✓ Yes | 16K | — |
| Q2_K | 6.6 GB | ✓ Yes | 16K | — |
Assumes an 8K-token context with an f16 KV cache. 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 10.8 GB ✗ · 16K 11.5 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
Quantize to Q3_K_M. That is the cheapest fix — it costs some quality but no money.
No compatible GPU? StarCoder 2 15B on 16 GB of system RAM, CPU only: runs, but it is tight.
Running StarCoder 2 15B on this card:
StarCoder 2 15B needs ~11 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 StarCoder 2 sizes on the NVIDIA GeForce RTX 3080 (10GB)
- StarCoder 2 7B — runs (5.7 GB)
- StarCoder 2 3B — runs (2.9 GB)
StarCoder 2 15B on nearby hardware
- AMD Radeon RX 9060 XT 8GB (8 GB) — runs at a lower quant
- NVIDIA GeForce RTX 5070 (12 GB) — runs
All StarCoder 2 sizes on the NVIDIA GeForce RTX 3080 (10GB) | StarCoder 2 15B model page | NVIDIA GeForce RTX 3080 (10GB) GPU page | VRAM calculator | Check your hardware