作者： Jakub Rusinowski · 最后更新： 2026年9月11日
No — Qwen3.8 doesn't fit the NVIDIA GeForce RTX 4080 Super's 16 GB. The cheapest card that runs it is the AMD Radeon RX 7900 XT (20 GB).
or compare on Vast.ai from $0.35/hr (typical low · varies)
As an Amazon Associate we earn from qualifying purchases. Cloud GPU links are referral links — we may earn a commission at no extra cost to you.
| VRAM | 16 GB |
| Memory Bandwidth | 736 GB/s |
| Quant | VRAM needed | Fits 16 GB? | Max context |
|---|---|---|---|
| F16 | 57.2 GB | ✗ No | — |
| Q8_0 | 31.2 GB | ✗ No | — |
| Q6_K | 24.5 GB | ✗ No | — |
| Q5_K_M | 21.4 GB | ✗ No | — |
| Q4_K_M | 18.4 GB | ✗ No | — |
| Q3_K_M | 13.5 GB | ✓ Yes | 8K |
| Q2_K | 10.8 GB | ✓ Yes | 16K |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 16 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Every Qwen3.8 variant requires more VRAM than the NVIDIA GeForce RTX 4080 Super provides (16 GB).
AMD Radeon RX 7900 XT (20 GB VRAM).
Qwen3.8 needs ~17 GB but this GPU has 16 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.
No — Qwen3.8 doesn't fit the NVIDIA GeForce RTX 4080 Super's 16 GB. The cheapest card that runs it is the AMD Radeon RX 7900 XT (20 GB).
The AMD Radeon RX 7900 XT (20 GB VRAM) is the cheapest upgrade that fits it.
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Qwen3.8-Max | 1449.0 GB | Does not fit | — |
| Qwen3.8-Flash-Next | 108.7 GB | Does not fit | — |
| Qwen3.8 27B | 16.8 GB | Runs at Q3_K_M | — |
← Can I Run It? | Qwen3.8 Model Page | NVIDIA GeForce RTX 4080 Super GPU Page | Check Your Hardware