Models › Muse-Spark-Open-816B-A42B

Muse-Spark-Open-816B-A42B: VRAM needs and speed by GPU

At UD-Q4_K_XL, Muse-Spark-Open-816B-A42B needs about 508.5 GB of VRAM. No measured runs yet. Speeds below are estimates. Submit a run.

819.99B parameters (mixture-of-experts, ~42.2B active) · license: other · 1,048,576-token context · GGUF published Sep 19, 2026 · GGUF files on Hugging Face

Memory needed per quantization

QuantFile sizeNeeds (estimate)Smallest card it fits
UD-IQ1_S175.6 GB178.6 GBmulti-GPU / large unified memory
UD-IQ1_M208.9 GB211.9 GBmulti-GPU / large unified memory
UD-IQ2_XXS225.6 GB228.6 GBmulti-GPU / large unified memory
UD-IQ2_S275.5 GB278.5 GBmulti-GPU / large unified memory
UD-Q2_K_XL311.2 GB314.2 GBmulti-GPU / large unified memory
UD-IQ3_XXS340.4 GB343.4 GBmulti-GPU / large unified memory
UD-Q3_K_XL401.5 GB404.5 GBmulti-GPU / large unified memory
UD-Q4_K_XL505.5 GB508.5 GBmulti-GPU / large unified memory

Expected speed on popular hardware

HardwareBest quant that fitsExpected tok/s
NVIDIA RTX 3060Does not fit
NVIDIA RTX 4060 TiDoes not fit
NVIDIA RTX 3090Does not fit
NVIDIA RTX 4090Does not fit
NVIDIA RTX 5090Does not fit
AMD Radeon RX 7900 XTXDoes not fit
Apple M4 Pro (20-core GPU)Does not fit
Apple M3 Max (40-core GPU)Does not fit
AMD Ryzen AI Max+ 395 (Radeon 8060S)Does not fit

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