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MacBook Pro M4 Max 128GB vs RX 9070 16GB for Local LLMs

The RX 9070 16GB has about 17% more memory bandwidth (640 vs 546 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 17% faster on the RX 9070 16GB. The MacBook Pro M4 Max 128GB fits more of the catalog at Q4/8K — 47 vs 25 of 61 models (128 vs 16 GB VRAM). Largest model that fits the MacBook Pro M4 Max 128GB but not the RX 9070 16GB: DeepSeek-V4-Flash (158.1B). MSRP is $4,399 for the MacBook Pro M4 Max 128GB vs $549 for the RX 9070 16GB. 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 (44 shared models), the RX 9070 16GB posts the higher tok/s in 38 rows vs 6. Methodology.

Spec comparison

MacBook Pro M4 Max 128GBRX 9070 16GB
VendorAppleAMD
VRAM128 GB16 GB
Memory typeLPDDR5XGDDR6
Memory bandwidth546 GB/s640 GB/s
TDP160 W220 W
MSRP (list)$4,399$549
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 44 shared models

ModelParams (B)MacBook Pro M4 Max 128GB tok/sMacBook Pro M4 Max 128GB fitsRX 9070 16GB tok/sRX 9070 16GB fitsWinner
Qwen3-0.6B0.8434.3 est.Yes509.1 est.YesRX 9070 16GB
gemma-3-1b-it1.0347.5 est.Yes407.3 est.YesRX 9070 16GB
Llama-3.2-1B-Instruct1.2289.5 est.Yes339.4 est.YesRX 9070 16GB
Qwen3-30B-A3B30.5115.8 est.Yes293.9 est.NoRX 9070 16GB
Qwen3-Coder-30B-A3B-Instruct30.5115.8 est.Yes293.9 est.NoRX 9070 16GB
Qwen3-30B-A3B-Instruct-250730.5115.8 est.Yes293.9 est.NoRX 9070 16GB
GLM-4.7-Flash31.2115.8 est.Yes282.1 est.NoRX 9070 16GB
Qwen3-1.7B2.0173.7 est.Yes203.6 est.YesRX 9070 16GB
Llama-3.2-3B-Instruct3.2108.6 est.Yes127.3 est.YesRX 9070 16GB
Qwen3-Next-80B-A3B-Instruct81.3115.8 est.Yes46.3 est.NoMacBook Pro M4 Max 128GB
Qwen3-Coder-Next79.7115.8 est.Yes48.1 est.NoMacBook Pro M4 Max 128GB
gpt-oss-20b21.596.5 est.Yes113.1 est.YesRX 9070 16GB
Phi-4-mini-instruct3.891.4 est.Yes107.2 est.YesRX 9070 16GB
Phi-4-mini-reasoning3.891.4 est.Yes107.2 est.YesRX 9070 16GB
gemma-3-4b-it4.389.1 est.Yes104.4 est.YesRX 9070 16GB

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

MacBook Pro M4 Max 128GBRX 9070 16GB
Catalog models that fit47 of 6125 of 61
Largest exclusive fitDeepSeek-V4-Flash (158.1B)—

MacBook Pro M4 Max 128GB details → · RX 9070 16GB details →