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WD30EZRS vs WD30EZRX

post #1 of 4
Thread Starter 
I'm planning on buying one of these HDDs (maybe the 2.5TB version, if the others aren't in stock). But then i saw this:

http://hdd-compare.com/en/compare/?d=wd30ezrs,wd30ezrx

How can WD30EZRS , predecessor (as far as i know) of the WD30EZRX, perform better when the first should be ~5400 RPM and the new one ~6600 RPM (even tho HD Tune says 7200 in the link)

Sadly they didn't include HD Tune in this review: http://www.techarp.com/showarticle.aspx?artno=730&pgno=0

It's the only review i can find of WD30EZRX (or WD25EZRX)

I'm confused rolleyes.gifrolleyes.gif
Edited by Lass3 - 3/5/12 at 8:06am
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post #2 of 4
Thread Starter 
Noone tried both drives?redface.gif
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post #3 of 4
The HDTune graph reveals that the SATA controller is bottlenecking the WD30EZRX. It is the faster drive.

That's what that flatness going across means - it doesn't have the right arc; also, burst speed is way too low. The WD30EZRX should be closer to 300MB/sec burst? They probably tested it on a SATA1 controller or something. I'm sure their testing methodology wasn't proper with results like that.

Edit: WD30EZRX graph should look more like this:

hdtuneproahcibenchmarkv.png

Based on the last half of the graph in your first link, I can say the WD30EZRX would have an average speed a touch over 100MB/sec, and a maximum speed around 130-135MB/sec.
Edited by Kramy - 3/5/12 at 5:05pm
     
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Hard DriveHard DriveHard DriveHard Drive
Hitachi 2TB - HDS723020BLA64 Crucial M500 960GB - CT960M500SSD1 WD 4TB Black - WD4001FAEX WD 4TB Black - WD4001FAEX 
Hard DriveHard DriveHard DriveHard Drive
Seagate 2TB - ST2000DM001 WD 640GB Black - WD6401AALS Seagate 6TB - ST6000DM001 Micron M500 - MTFDDAK480MAV 
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Pioneer DVR-115DBK Samsung SH-S243D/BEBE LG GH22NS90 Lite-On EBAU108 External DVD 
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post #4 of 4
Thread Starter 
ah, yeah makes sense. EZRX it is biggrin.gif
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Golden Ivy
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HTPC
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CPUMotherboardGraphicsRAM
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Hard DriveCoolingOSMonitor
2x 850 Evo 500 GB Custom Water Windows 10 Pro Asus PG258Q 1080p/240Hz TN 
MonitorKeyboardPowerMouse
Dell U2515H 1440p/60Hz AH-IPS Logitech G610 MX-Red + O-Rings EVGA SuperNova G2 850W Logitech G403 
AudioAudio
Asus Xonar Essence STX Philips Fidelio X1 
CPUMotherboardRAMHard Drive
i3-4150T AsRock Z97E-ITX/ac 2x 4GB @ 1600/CL9 Samsung 850 Evo 250GB + 20TB NAS 
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