[SOLVED] Fake transfer speeds?

kerangovender

Commendable
Nov 26, 2017
262
20
1,715
9
Hello everyone

Sometimes when I'm transferring files, I get a very unrealistic transfer speed in windows for the first second.
All my hard drives are SATA 2 (300MB/s). The one I copied it to was in a USB 3.0 enclosure connected to USB 2.0 port

My PC has SATA 2
My PC only has USB 2.0

The theoretical max speeds for me would be 300 megabytes/s for SATA and 60 megabytes for USB.
Why am I getting +-1.47gb/s as that is way faster than SATA 3. Then it drops to +-30MB/s which is normal for USB 2.0.
That speed is not right and I want to know why.
How can caching make a drive faster than its rated speeds?
 

USAFRet

Titan
Moderator
Mar 16, 2013
128,917
5,105
164,940
19,996
Because the small cache space is monumentally faster than the actual drive.
That's what it is there for, a small space for the initial small set of data.

Additionally, it matters hugely what you are transferring, and from what.
 

USAFRet

Titan
Moderator
Mar 16, 2013
128,917
5,105
164,940
19,996
Because the small cache space is monumentally faster than the actual drive.
That's what it is there for, a small space for the initial small set of data.

Additionally, it matters hugely what you are transferring, and from what.
 

ASK THE COMMUNITY

TRENDING THREADS