Runs more models well (grade B or better)
M3 Ultra
M3 Ultra: 43 · AMD Ryzen AI Max+ 395 (Strix Halo): 37
M3 Ultra runs 43 of 74 open models well and AMD Ryzen AI Max+ 395 (Strix Halo) runs 37. Here is every model on both, with the grade and the speed you would get.
Runs more models well (grade B or better)
M3 Ultra
M3 Ultra: 43 · AMD Ryzen AI Max+ 395 (Strix Halo): 37
Faster on the models both run
M3 Ultra · ×1.9
Median speed ratio over 37 models both load fully in memory.
Most intelligent model it runs well
M3 UltraQwen3.8 27B
AMD Ryzen AI Max+ 395 (Strix Halo)Qwen3.8 27B
| M3 Ultra | AMD Ryzen AI Max+ 395 (Strix Halo) | |
|---|---|---|
| Memory compared | 96 GB (base configuration) | 64 GB (base configuration) |
| Memory bandwidth | 819 GB/s | 256 GB/s |
| Memory type | Unified (shared with the system) | Unified (shared with the system) |
| Backend | Metal | Vulkan |
| Released | 2025 | 2025 |
Grade and output speed at Q4_K_M with an 8K context; green marks the better of the two.
Estimates from published specs and measurements, calibrated per backend. Your drivers, settings and runtime change the real numbers.
M3 Ultra vs M5 UltraM3 Ultra vs M2 UltraM3 Ultra vs M5 Max (40-core GPU)M3 Ultra vs RTX 5070 TiM3 Ultra vs RTX 5080
AMD Ryzen AI Max+ 395 (Strix Halo) vs M2 MaxAMD Ryzen AI Max+ 395 (Strix Halo) vs M3 Max (30-core GPU)AMD Ryzen AI Max+ 395 (Strix Halo) vs M3 Max (40-core GPU)AMD Ryzen AI Max+ 395 (Strix Halo) vs M4 ProAMD Ryzen AI Max+ 395 (Strix Halo) vs M4 Max (40-core GPU)AMD Ryzen AI Max+ 395 (Strix Halo) vs M5 Pro
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