SAS vs SATA.... Speed Difference?

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USMC2Hard4U

Supreme [H]ardness
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I am currently an Apple User (I Know please bear with me)

Anyway I am looking at a new Mac Pro and am having trouble deciding what flavor of hard drives to get. Weather to Get 2x 300GB 15K SAS Drives, or 2x 1TB 7200 RPM Drives.

Now $ is not really the issue to a point, I want to get what I pay for but I dont want to waste money. I am talking speed here. I know for sure that the 15K will seek alot faster than the 7.2K but my issue lies with Data Speed. They both are rated at 3Gbps/s? So is there really a speed difference?
 
USMC2Hard4U said:
I am currently an Apple User (I Know please bear with me)

Anyway I am looking at a new Mac Pro and am having trouble deciding what flavor of hard drives to get. Weather to Get 2x 300GB 15K SAS Drives, or 2x 1TB 7200 RPM Drives.

Now $ is not really the issue to a point, I want to get what I pay for but I dont want to waste money. I am talking speed here. I know for sure that the 15K will seek alot faster than the 7.2K but my issue lies with Data Speed. They both are rated at 3Gbps/s? So is there really a speed difference?
Click to expand...

if you can find ANY hdd that support the full sata2.0 specification of 3GB/s then its fucking christmas... both drive perform WELL BELOW that speed... the SAS drive is obviously a fair whack faster with random access times... the total data throughput could be quite similar due to the platter size of the 1TB drive which equates to faster data rates..
 
Get the SATA terabyte drives. They are plenty fast enough.

But get a real computer.
 
You can compare performance of drives at storagereview.com. For any single user system SATA drives will almost certainly be just as fast, if not faster, than even best SAS drives. Best SAS vs best SATA for desktop use-> SATA wins. This is not taking into account lower cost and more capacity.
 
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