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View Full Version : Raptor 74GB or WD 750GB SE2 for PS scratch?



switters
01-17-2008, 01:56 PM
I'm trying to decide whether to use a 74GB 10k Raptor or 750GB 7,200k WD SE2 drive as scratch for Photoshop. I've seen some speed comparisons of the 750SE2 with the newer 150GB Raptors, but it's hard for me to know how the 74GB compares. I do believe that the 10k Raptors still have faster random read speeds, which I imagine would be a good thing for a scratch drive?

If I use the 74GB as scratch, then I can buy a FW enclosure and use the 750GB as a dedicated bootable clone back-up drive. If I use the 750GB for scratch, I'll probably leave it in my MacPro and partition it so I'm using 60-80GB for scratch and 650GB for backup.

rwm
01-17-2008, 02:53 PM
Look here and see if it helps...
http://www.macgurus.com/raid/raidmain.php

switters
01-17-2008, 03:15 PM
Thanks. I see that the 150GB Raptor is significantly faster than the 74GB, but still not sure about how the 750 SE2 compares to both.

ricks
01-17-2008, 05:24 PM
A couple of different things we are measuring.

One is bandwidth, how fast a drive can push data through. The SE2 and the Raptor are similar, the Raptor wins though. The Seagate 7200.11 is about the same as the Raptor is pure throughput. The SE2 is not within 15% of either.

The second measurement is latency, how fast a drive starts to move data. The Raptor beats all other drives in this. For small transfers the Raptor is king. FOr scratch disk use latency is more important than throughput, for the most part.

Rick

switters
01-17-2008, 06:29 PM
Thanks! Looks like I'll be using the Raptor.