Will it run? / Qwen3.5 122B (A10B) / Mac Studio M5 Ultra (256GB)

Can the Mac Studio M5 Ultra (256GB) run Qwen3.5 122B (A10B)?

Fast Yes, at about 81 tokens/sec (estimated). Replies stream faster than you can read.

81estimated tokens/sec
82.5 GBmemory needed
192 GBavailable to the model
1228.8 GB/smemory bandwidth
ollama run qwen3.5:122b-a10b

Check the Mac Studio M5 Ultra (256GB) price →

How we got this number

Each generated token reads the active part of the model from memory once: 6.6 GB. The Mac Studio M5 Ultra (256GB) moves 1228.8 GB/s, so the ceiling is 120+ tokens/sec. Real machines reach a fraction of that ceiling; we use 80%, calibrated against a measured Mac run. Send us your real numbers and we'll replace the estimate.

Faster machines for Qwen3.5 122B (A10B)

Mac Studio M5 Ultra (96GB)48 tok/s$5,499Check price →
NVIDIA DGX Spark (128GB)16 tok/sCheck price →
Ryzen AI Max+ 395 mini PC (128GB)15 tok/sCheck price →

Other models on the Mac Studio M5 Ultra (256GB)

Nemotron 3.5 lightning 30B (A3B)Fast120+ tok/s
Qwen 3 30B (A3B)Fast120+ tok/s
Gemma 4 26B (A4B)Fast120+ tok/s
Qwen3.5 35B (A3B)Fast120+ tok/s
gpt-oss 120BFast120+ tok/s
Qwen3 Coder 30B (A3B)Fast120+ tok/s