I'm a newcomer to SSDs, having just got my first one earlier this year. I got a quarter-gig Samsung Evo 840 to use as my OS drive, and now I've added a half-gig one from the same range. I did this because I've got an immense music software package arriving soon which requires a 250GB install (yes, really) due to its immense libraries, so it seemed like a good move to get this half-gig drive to host all of my other virtual instruments' virtual libraries.
So, I just started moving these libraries to the SSD from their current home: a 1TB Seagate SSHD drive. These are the speeds I'm seeing:
I opened Samsung Magician for this screenshot so you could see that AHCI is on, the SATA reports that it's healthy, etc. Does this graph look as bad to you as it does to me? That's an early peak of roughly 150MB/s but most of the time it's in the 20/40MB/s area, even dipping to 2MB/s in the troughs.
The Samsung Magician's Performance Test shows an SSD in fine health: 534MB/s seq. write, 554MB/s seq. read, random read 93936 and write 85965 (IOPs). So am I being unreasonable expecting better transfer speeds from a hybrid drive to an SSD, or is something odd going on here?
Mobo:
ASUS Z87-M PLUS with i5 4440
RAM:
16GB 1600MHz DDR3
SSDs:
240GB Samsung EVO 840, running Windows 8.1 64bit
500GB Samsung Evo 840
HDDs:
1TB Seagate SSHD
3TB WD Caviar Green HDD