I tested the speed of the new PNY XLR8 CS3140 1TB M.2 installed in a Wavlink TB3 enclosure connected to my Mac Mini 16/248GB/11.3.1.
When booted on APPLE M1 internal SSD
M1 Internal SSD speed is ~3177 write ~2850 read
TB3 CS3140 SSD speed is ~2701 write ~2539 read
When booted from TB3 SSD
M1 Internal SSD speed is ~3020 write ~2877 read
TB3 CS3140 SSD speed is ~2535 write ~2531 read
This SSD has advertised speeds 7,500MB/s seq. read and 5,650MB/s write. Probably only mounted on an Ryzen X570 will it ever reach that speed. WTF is it so slow on M1 if TB3 is capable of 5000 MB/s? Should it not at least be equal to the M1 SSD?
Tested w the included TB3 cable and Apple TB3 cable, speeds were ~ the same. SSD did get hot to the touch but not crazy hot. Big Sur 11.3.1 installs and runs fine on this TB3 SSD combo.
FYI the enclosure is OK, it has a metal frame and plastic sides. Fairly unremarkable, the included heatsink is a nice bonus. There might be enough room inside for a thin 3rd party heatsink but the included one seems just fine.
It seems to me that:
Between the 1TB PNY CS3140 / Samsung 980 Pro / WD Black SN850 / Sabrent Rocket 4 Plus, IMHO it is best to simply buy the cheapest option as performance in TB3 may never reach internal SSD speeds.
The 3 options are not far off from internal will the difference even be noticeable?
When booted on APPLE M1 internal SSD
M1 Internal SSD speed is ~3177 write ~2850 read
TB3 CS3140 SSD speed is ~2701 write ~2539 read
When booted from TB3 SSD
M1 Internal SSD speed is ~3020 write ~2877 read
TB3 CS3140 SSD speed is ~2535 write ~2531 read
This SSD has advertised speeds 7,500MB/s seq. read and 5,650MB/s write. Probably only mounted on an Ryzen X570 will it ever reach that speed. WTF is it so slow on M1 if TB3 is capable of 5000 MB/s? Should it not at least be equal to the M1 SSD?
Tested w the included TB3 cable and Apple TB3 cable, speeds were ~ the same. SSD did get hot to the touch but not crazy hot. Big Sur 11.3.1 installs and runs fine on this TB3 SSD combo.
FYI the enclosure is OK, it has a metal frame and plastic sides. Fairly unremarkable, the included heatsink is a nice bonus. There might be enough room inside for a thin 3rd party heatsink but the included one seems just fine.
It seems to me that:
Between the 1TB PNY CS3140 / Samsung 980 Pro / WD Black SN850 / Sabrent Rocket 4 Plus, IMHO it is best to simply buy the cheapest option as performance in TB3 may never reach internal SSD speeds.
The 3 options are not far off from internal will the difference even be noticeable?