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Can a RTX 4070 Ti Super 16GB run Qwen3.5 27B?

Yes, with partial offload (slower). Qwen3.5 27B on RTX 4070 Ti Super 16GB at Q4_K_M uses system RAM (19.3 GB needed, 15.5 GB usable), about 9 tok/s (estimate).

Hardware: RTX 4070 Ti Super 16GB · Model: Qwen3.5 27B

RTX 4070 Ti Super 16GB has 16 GB of VRAM and 672 GB/s of memory bandwidth. The checker holds back 0.5 GB of VRAM for the driver and assumes 16 GB of system RAM, so fast memory usable by Ollama is 15.5 GB. Partial offload may also use 60% of that system RAM. Qwen3.5 27B (27.8B, Alibaba) at Q4_K_M is a 17 GB download and needs 19.3 GB with headroom for about 8k tokens.

Best quantQ4_K_M
Download size17 GB
Memory needed19.3 GB
Usable fast memory15.5 GB
Fitpartial offload (slower)
Estimated speed~9 tok/s (estimate)
Commandollama run qwen3.5:27b-q4_K_M
Open RTX 4070 Ti Super 16GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

A project by OnDevice Labs · llms.txt