Need advice on sata3 vs sata2 Tags: Hard Drives Western Digital SATA Storage Last response: June 9, 2012 3:47 PM in Storage Share thebiggvan June 9, 2012 1:48:44 PM im thinking of upgrading to a Western Digital Caviar Black WD1002FAEX is there a noticeable increase in speed if im coming from a Seagate Barracuda 7200.10 ST3250820AS how much of a difference would 8 times more cache make? is sata 2 alot more faster than sata 3? is it worth paying the extra? More about : advice sata3 sata2 unksol a b G Storage June 9, 2012 1:58:14 PM there's zero difference between sata2 and sata3 for mechanical drives Dereck47 a c 396 G Storage June 9, 2012 2:45:19 PM SATA 2 (3Gb/s) speeds are from 151MB/s to 300MB/s. SATA 3 (6Gb/s) speeds are from 301MB/s to 600MB/s. The WD Caviar Black has data transfer speeds of 126MB/s. The Seagate Barracuda has data transfer speeds of 72MB/s. Yes, there should be some real-world difference if you upgraded to the Caviar Black. Can't find your answer ? Ask ! Get the answer rolli59 a c 229 G Storage June 9, 2012 3:47:46 PM The only difference is that the WD black is faster in read and write, I am not sure a regular user would notice the difference, people that read and write large files to the drive often would. Can't find your answer ? Ask ! Publish Related resources: ForumSamsung Spinpoint F3 1 TB ( SATA2 ) vs WDC Caviar Blue 1 TB ( SATA3 ) ForumSATA3 drive at 5900rpm vs SATA2 drive at 7200rpm ForumSsd 64 GB sata3 6gb on a motherboard with sata2 3gb ForumRAID 0 Speeds SATA3 vs SATA2 ForumSamsung SpinPoint 1TB SATA2 vs WD Caviar Black 1TB SATA3 ForumWestern Digital Blue 500gb SATA3 or Hitachi Deskstar 1TB SATA2 ForumGA-Z68XP-UD4 w/SSD Reporting as SATA2 not SATA3 ForumSamsung 830: SATA3 for SATA2 and "Notebook Kit" ForumDiff between sata2 and sata3 hd ForumSata3 HDD on Sata2 Controller ForumWD Green 2TB Sata3 (WD20EARX) compatible with Sata2 ? ForumSata3 hdd with sata2 raid controller Forum2 x Sata2 HDD in Sata3 Raid0 ForumBios detecting version of windows that are no longer there ForumNeed Help Choosing a Hard Drive Forum[Solved] What will I need to buy with this OEM drive? ForumI could really use some advice on picking an ssd please and thank you! ForumI need help choosing a hard drive ForumNeed help with SSD/HDD setup ForumDropped HDD need to retrieve data More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !