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post #1 of 7
Thread Starter 
Looking to buy a new hard drive for another rig. I was looking on PassMark to find some cheap and fast hard drives. I am confused as to why many hard drives that are at lower specifications than my current HD have higher benchmark scores. For example, the WDC WD5000AAKX (Caviar Blue 16mb cache) has a higher benchmark score than my WDC WD6402AAEX (Caviar Black 64mb cache). Can someone explain this?
Edited by charlie310 - 5/16/11 at 3:37am
Ol' Betsy
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Ol' Betsy
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post #2 of 7
Quote:
Originally Posted by charlie310 View Post
Looking to buy a new hard drive for another rig. I was looking on PassMark to find some cheap and fast hard drives. I am confused as to why many hard drives that are at lower specifications than my current HD have higher benchmark scores. For example, the WDC WD5000AAKX (Caviar Blue 16mb cache) has a higher benchmark score than my WDC WD6402AAEX (Caviar Black 64mb cache). Can someone explain this?
Cache makes small to no difference after you get to 16MB and higher. The reason why it's faster is because it has higher density/platter. Your 640GB Caviar Black has 2x 320GB platters, while the Caviar Blue 500GB has a 1x500GB platter. That means that the Hard Drive can access a bigger amount of data while spinning at the same speed (7200RPM). There's also the fact that WD may have made some manufacturing tweaks to get more performance from the newer Hard Drives, but it boils down mostly to the HDD density.
    
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post #3 of 7
Thread Starter 
Thanks. It's hard to believe that out of 73 people who read this thread, you were the only one who knew the answer (or maybe the only one that wasn't too lazy to give an answer).
Ol' Betsy
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Ol' Betsy
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CoolingCoolingOSMonitor
4x140mm Cooler Master R4-S4S-10AK-GP (Case Fans) Stock Case Fans: 4x120mm, 1x180mm Windows 7 Home Premium 64bit Dell ST2210B 21.5" 1080P 
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post #4 of 7
looking at some benchies the f3's are a good buy
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by masonkian View Post
looking at some benchies the f3's are a good buy
Yup, ordered one last night. It was the last 500GB model Amazon had.
Ol' Betsy
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Ol' Betsy
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Hard DriveHard DriveOptical DriveCooling
Corsair Force GT 120GB Samsung Spinpoint 320GB LiteOn DVD Burner Noctua NH-D14 (Lapped) 
CoolingCoolingOSMonitor
4x140mm Cooler Master R4-S4S-10AK-GP (Case Fans) Stock Case Fans: 4x120mm, 1x180mm Windows 7 Home Premium 64bit Dell ST2210B 21.5" 1080P 
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post #6 of 7
Get the F3's before they go. I'm looking forward and not at the same time to see what seagate plans. If they're smart, they'll use the F3 tech or improve it and sell it. Post some benches.
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Trinity
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post #7 of 7
Charlie310, you running your SATA controller in AHCI mode? Most motherboards default to an IDE compatibility mode, which hurts performance a little. I don't think there is much realworld difference, but it tends to be really noticable in HD benchmarks.
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Spit in God's Eye
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