Can RX 7600 XT 16GB run Qwen3-Next-80B-A3B-Instruct?
AMD · 16 GB GDDR6 · 288 GB/s bandwidth ·
Alibaba · 81.3B (active 3B) · MoE · model ctx up to 256K
No — Qwen3-Next-80B-A3B-Instruct at Q4 needs ≈ 46.02 GB even at 4K context, beyond the RX 7600 XT 16GB's 16 GB GDDR6. It would only run with heavy CPU/disk offload. Decode at Q4/8K: ≈ 20.8 tok/s (estimated, batch 1). FP16 needs ≈ 164.2 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
46.02 GB
No
21.1est.
Q4
8K default
46.32 GB
No
20.8est.
Q4
32K
48.12 GB
No
19.3est.
FP16
4K
163.9 GB
No
—
FP16
8K default
164.2 GB
No
—
FP16
32K
166.0 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).