It appears the M2 Max 38-core GPU is faster than the M1 Ultra 64-core GPU in Blender.
SoC | GPU cores | Blender Open Data |
M1 Pro | 14-core | 407.87 |
M1 Pro | 16-core | 435.14 |
M1 Max | 24-core | 722.53 |
M2 Pro | 19-core | 762.53 |
M1 Max | 32-core | 862.03 |
M1 Ultra | 48-core | 1307.45 |
M1 Ultra | 64-core | 1483.38 |
M2 Max | 38-core | 1514.95 |