Can RX 7900 XTX 24GB run Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16?
AMD · 24 GB GDDR6 · 960 GB/s bandwidth ·
NVIDIA · 30.0B (active 3.0B) · MoE · model ctx up to 256K
Yes — the RX 7900 XTX 24GB (24 GB GDDR6) can run Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16. At Q4 with the default 8K context it needs ≈ 18.1 GB VRAM (weights 16.5 GB + KV cache 0.6 GB + 1 GB runtime overhead), which fits within 24 GB. Decode at Q4/8K: ≈ 203.6 tok/s (estimated, batch 1). FP16 needs ≈ 61.6 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
17.8 GB
Yes
203.6est.
Q4
8K default
18.1 GB
Yes
203.6est.
Q4
32K
19.9 GB
Yes
203.6est.
FP16
4K
61.3 GB
No
24.5est.
FP16
8K default
61.6 GB
No
24.3est.
FP16
32K
63.4 GB
No
22.9est.
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).
VRAM breakdown at 8K context
Quant
Weights
KV cache
Overhead
Total needed
RX 7900 XTX 24GB VRAM
Q4
16.5 GB
0.6 GB
1 GB
18.1 GB
24 GB
FP16
60.0 GB
0.6 GB
1 GB
61.6 GB
24 GB
Other GPUs that run Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16