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SATA III Does that make a difference on HDDs?

post #1 of 8
Thread Starter 
Ok. So I have a SATA II SSD in my sig rig, and I don't *think* it's bottlenecked by my SATA port on my motherboard.. That being said, I don't understand why hard drives are being made that can transfer 6gb/s. Can an HDD really ever transfer that fast?? It just bothers me when I see adds with SATA 6gb/s hard drives and I'm thinking... that isn't possible...

Or I may be completely off.. Be easy on me.
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post #2 of 8
You are correct, SATA III/6 GB/S is useless on hard drives, so is SATA II/3GB...
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post #3 of 8
I believe the point of it is for the new SSDs (some of which are expected to be capable of 5GB/s), but its probably still not a bottleneck yet, just headroom for future growth.
post #4 of 8
For individual HDDs, SATA 6.0 is pointless...as is SATA 3.0. With RAID arrays you'll get past SATA 3.0 and find yourself wanting 6.0

The bottleneck on any HDD isn't the connector, it is the buffer-to-disk.
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post #5 of 8
It may mach a difference though because of the hard-drives cache when being written to.
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post #6 of 8
Quote:
Originally Posted by Skripka View Post
For individual HDDs, SATA 6.0 is pointless...as is SATA 3.0. With RAID arrays you'll get past SATA 3.0 and find yourself wanting 6.0

The bottleneck on any HDD isn't the connector, it is the buffer-to-disk.
In a raid array the RAID controller is not communicating over SATA, only the drive communicates with the RAID controller over SATA, so with RAID arrays you would find yourself wanting either more PCI-E lanes or PCI-E 3.0.
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post #7 of 8
Screw SATA III, I want Infinband... with a TB of RAM SSD...
post #8 of 8
Thread Starter 
Great! Thanks for all of the quick responses! I am glad I asked now. It has been sort of bugging me for a while now.
Big Blue
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8 gigs G.SKILL Sniper (2x 4) Corsair 128GB SSD LG BluRay Corsair H60 
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Big Blue
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HTPC
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Bedroom HTPC
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CPUMotherboardGraphicsGraphics
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RAMHard DriveOptical DriveCooling
8 gigs G.SKILL Sniper (2x 4) Corsair 128GB SSD LG BluRay Corsair H60 
OSMonitorKeyboardPower
Windows 7 Pro 64 bit ASUS 21" & LG 20" Razer Lycosa SeaSonic X750 Gold 750W 
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Silverstone FT02 Razer Mamba 
CPUMotherboardRAMHard Drive
Athlon II X2 255 ASRock 880GMH/USB3.0 Wintec DDR3 4GB Intel X25-M 80 GB 
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Windows 7 with XBMC Iogear wireless keyboard/mouse GKM561R Antec EarthWatts Green 380D Silverstone MLO3B 
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