5427.3 Read / 6723.7 Write
2TB SSD results from fstoppers.com review of the unbinned M4 Pro model.
——————————————————
3318.6 Read / 2899.5 Write
1TB SSD (Blackmagic Speed Test) results from tomsguide.com review of the M4 model.
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M4 MBP SSD speeds
- Thread starter M4pro
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5427.3 Read / 6723.7 Write
2TB SSD results from fstoppers.com review of the unbinned M4 Pro model.
——————————————————
3318.6 Read / 2899.5 Write
1TB SSD (Blackmagic Speed Test) results from tomsguide.com review of the M4 model.
From the Mac Mini tests it is from the Pro chip having double the bandwidth. The NAND configuration needs to fully utilize that though, but iirc the Pro chips starts at 512 so all Pro models should have the higher speed.
It is not due to the SoC, but the number of NAND pads available on the logic board.
3000 ish MB/s is M4 best case scenario with dual NAND pads (this has been confirmed by the M4 mini teardown)
The base SoC never supported the same number of NANDs as the Pro/Max chip. You can only use two with base where you can use 4 for pro and max
I see. So the number of NAND pads on the board actually corresponds to the SoC used. That makes total sense.
I've got an M4 Max with 2TB and see ~6.7GB write, ~5.4GB read.
So it's in line with the 2TB speeds, and faster than the 512GB.
Good news, thank you.
You probably only get to see a >7000MB/s speed on 8 NAND setups, so only on 4TB and 8TB.
