llamaperf

M5 Max 36GB vs AMD RX 9070 XT 16GB for local LLMs

12 reports on the M5 Max 36GB and 18 on the AMD RX 9070 XT 16GB

Which is faster for local LLMs?

On Qwen3.5 9B at 4-bit, the M5 Max 36GB has 80.1 generation tokens/s (one run); the AMD RX 9070 XT 16GB has 7.9 generation tokens/s (one run). Those are community reports whose engines and settings differ, so the gap is a rough sign, not a controlled measure of the two cards. Memory bandwidth, which caps how fast a card can write, is 39% higher on the AMD RX 9070 XT 16GB (461 GB/s on the M5 Max 36GB, 640 on the AMD RX 9070 XT 16GB).

M5 Max 36GB
Memory
36GB unified
Memory bandwidth
461 GB/s
FP16 compute
not on record
Reports
12
AMD RX 9070 XT 16GB
Memory
16GB
Memory bandwidth
640 GB/s
FP16 compute
195 TFLOPS
Reports
18

Measured on both

Generation and prompt processing speeds from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same bit class. Each side shows the engines and reported context behind its median. Context can mean a configured window or prompt depth, so these are community comparisons with differing settings. How to read these

ModelM5 Max 36GBAMD RX 9070 XT 16GB
Qwen3.5 9B4-bit80.1one runengine not statedcontext not stated7.9one runllama.cpp32K context

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape. Where a model was also measured above, the measurement wins.

ModelM5 Max 36GBAMD RX 9070 XT 16GB
Qwen3.5 9B20.3 t/sFP1639.1 t/sQ8_0
Qwen3.8 27B19.7 t/sQ5_K_M41.7 t/sQ2_K
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active75.9 t/sQ4_K_M138.0 t/sQ2_K
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B19.7 t/sQ5_K_M41.7 t/sQ2_K
Gemma 4 26B · 4B active50.2 t/sQ5_K_M93.0 t/sQ3_K_S

Change the context, RAM or model in the calculator: M5 Max 36GB · AMD RX 9070 XT 16GB

Every report on each card, with its source: M5 Max 36GB · AMD RX 9070 XT 16GB

More comparisons