SSD OSZ Vector. The read speed is slower than the write speed. How so?

Question

Solid State Drives

SSD OSZ Vector
fw1.03.1

================================
SMART Data
Model Number: OCZ-VECTOR
Serial Number: OCZ-DDS1TDP2Y58O0GC7
WWN: 5e83a97337de4ce9
ID ATTRIBUTE STATUS VALUE WORST RAW
5 Accumulated runtime bad blocks 0x0000 000 000 0
9 Power-On Hours count 0x0000 100 100 1696
12 Power Cycle count 0x0000 100 100 1199
171 Available OP sector count 0x0000 007 007 7
174 Power Cycle Count (unplanned) 0x0000 100 100 35
187 Total Uncorrectable Nand Reads 0x0000 100 100 100 0
195 Total Programming Failures 0x0000 100 100 0
196 Total Erase Failures 0x0000 100 100 0
197 Total Read Failures 0x0000 100 100 100
Host Reads (GB) 0x0000 100 100 2549
199 Host Writes ( GB) 0x0000 100 100 3854
208 Average erase count 0x0000 100 100 184
210 SATA CRC error count 0x0000 100 100 0
233 Lifetime remaining 0x0000 094 094 94
249 Total NAND programming count (pages) 0x0000 100 100 527184606
TRIM did, nothing changed..

Answer 1

Well, judging by the picture, the read speed is still higher than the write speed...
Judging by the almost identical read and write speeds around 250MB / s, I think you have sata2.
And about TRIM - it does not affect the reading speed in any way.

Answer 2

So what?
This is normal, all SSDs do this. Yes, and the HDD, in my opinion, too.

Answer 3

Inside the SSD is 256MB of RAM (usually) a cache that speeds up writing, but not reading.