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Samsung 970 EVO Plus Speed OK or Not ?

Joined
Nov 2, 2018
Messages
11
Motherboard
ASUS ROG Maximus X Code
CPU
i7-8700K
Graphics
GTX 1080
Mac
iMac, MacBook Air, Mac mini
Mobile Phone
iOS
I have a Mojave-based system installed on 970 EVO Plus. All looks good on every speed tests, like Blackmagic (see a screenshot). Also I've installed iStat Menus which shows me that the write/read speed is limited near 450-500 MB/s during moving/copying files from external USB 3.1. or unpacking the large archives from this USB. But during checking this ssd by Blackmagic test (or others) iStat Menus shows me pretty the same speed as in testing apps (2800 MB/s). USB 3.1 port looks normal (5GB/s is showing in system info) Does my system working with some limits or this is normal ?
 

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Last edited:
Joined
Jul 21, 2019
Messages
4
Motherboard
Asus Prime Z390-A
CPU
i5-9600K
If your USB port have 5Gb/s (GigaBIT/s) that it can read max 625 (megabyte/s) but this is theoretical with the USB overhead 450-500 is OK. BUT that mean that your USB port runs as USB 3.0 not 3.1 (10 Gigabit/s)
 
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