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Mac mini M4 Pro 64GB vs RTX 3090 Ti 24GB for Local LLMs

The RTX 3090 Ti 24GB has about 269% more memory bandwidth (1,008 vs 273 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 269% faster on the RTX 3090 Ti 24GB. The Mac mini M4 Pro 64GB fits more of the catalog at Q4/8K — 44 vs 33 of 61 models (64 vs 24 GB VRAM). Largest model that fits the Mac mini M4 Pro 64GB but not the RTX 3090 Ti 24GB: Qwen3-Next-80B-A3B-Instruct (81.3B). MSRP is $2,199 for the Mac mini M4 Pro 64GB vs $1,999 for the RTX 3090 Ti 24GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (47 shared models), the RTX 3090 Ti 24GB posts the higher tok/s in 44 rows vs 3. Methodology.

Spec comparison

Mac mini M4 Pro 64GBRTX 3090 Ti 24GB
VendorAppleNVIDIA
VRAM64 GB24 GB
Memory typeLPDDR5XGDDR6X
Memory bandwidth273 GB/s1,008 GB/s
TDP155 W450 W
MSRP (list)$2,199$1,999
BuySearch Amazon (affiliate)Search Amazon (affiliate)

MSRP is the launch list price, not live retail. Buy links are Amazon affiliate links — the price after you click is the live price.

Q4 / 8K head-to-head — top 15 of 47 shared models

ModelParams (B)Mac mini M4 Pro 64GB tok/sMac mini M4 Pro 64GB fitsRTX 3090 Ti 24GB tok/sRTX 3090 Ti 24GB fitsWinner
Qwen3-0.6B0.8217.2 est.Yes801.8 est.YesRTX 3090 Ti 24GB
gemma-3-1b-it1.0173.7 est.Yes641.5 est.YesRTX 3090 Ti 24GB
Llama-3.2-1B-Instruct1.2144.8 est.Yes534.5 est.YesRTX 3090 Ti 24GB
Qwen3-1.7B2.086.9 est.Yes320.7 est.YesRTX 3090 Ti 24GB
Qwen3-30B-A3B30.557.9 est.Yes213.8 est.YesRTX 3090 Ti 24GB
Qwen3-Coder-30B-A3B-Instruct30.557.9 est.Yes213.8 est.YesRTX 3090 Ti 24GB
GLM-4.7-Flash31.257.9 est.Yes213.8 est.YesRTX 3090 Ti 24GB
Qwen3-30B-A3B-Instruct-250730.557.9 est.Yes213.8 est.YesRTX 3090 Ti 24GB
Llama-3.2-3B-Instruct3.254.3 est.Yes200.5 est.YesRTX 3090 Ti 24GB
gpt-oss-20b21.548.3 est.Yes178.2 est.YesRTX 3090 Ti 24GB
Qwen3-Coder-Next79.757.9 est.Yes170.4 est.NoRTX 3090 Ti 24GB
Phi-4-mini-instruct3.845.7 est.Yes168.8 est.YesRTX 3090 Ti 24GB
Phi-4-mini-reasoning3.845.7 est.Yes168.8 est.YesRTX 3090 Ti 24GB
gemma-3-4b-it4.344.5 est.Yes164.5 est.YesRTX 3090 Ti 24GB
Qwen3-Next-80B-A3B-Instruct81.357.9 est.Yes164.0 est.NoRTX 3090 Ti 24GB

est. = bandwidth-based estimate; measured = curated real benchmark that overrides the estimate. Fits = weights + KV(8K) + 1 GB overhead ≤ 95% of VRAM.

Fit coverage at Q4 / 8K

Mac mini M4 Pro 64GBRTX 3090 Ti 24GB
Catalog models that fit44 of 6133 of 61
Largest exclusive fitQwen3-Next-80B-A3B-Instruct (81.3B)—

Mac mini M4 Pro 64GB details → · RTX 3090 Ti 24GB details →