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SATA vs SATA2 vs SATA3 - Page 3

post #21 of 22
Quote:
Originally Posted by ghostrider85 View Post

Sata 3 is rated at 6 gigabits per second. Gigabit not gigabyte.
1 byte = 8bits

To be fair, 1 byte = 10 bits when you are on SATA.
post #22 of 22
Quote:
Originally Posted by rx7speed View Post

so just to make sure with sata speeds are they per specific port or for the whole sata controller?
reason I ask is I have the built in ICH9R controller. with both my 4x250 setup with each drive capable of around 110-120mb/s max speed when all four are in use it seems to peak though around the 300mb/s mark. same thing with my new 2TB drives which do damn near 200mb/s max on their own but yet with 2 in raid zero I still get around the same 300 mb/s max speed out of them.
Most of your questions are answered in the post right above yours.
Quote:
Originally Posted by Kramy View Post

Btw, SATA bandwidth is per-channel/port. Although some controllers are limited by their link to the CPU, the newer AMD boards can push through around 2GB/sec
---> http://www.overclock.net/t/1091002/sb850-max-throughput-benchmarks

That's enough for 3-4 SATA3 SSDs in RAID-0!

You've got an Intel board? I don't know what sort of throughput they have. It could be the SATA controller is maxed or its link to the CPU is maxed. I had an old nVidia board a few years ago that attained about 350-400MB/sec in RAID, but at the time most boards capped out at 250-300MB/sec. Intel made waves with their first board that could push through 500MB/sec. Then AMD got their butts in gear and made most of theirs capable of somewhere up around 2GB/sec. With modern AMD boards, you can nearly use every port fully. I don't know if Intel ever did the same.

Anyway, your board is a bit older, so you should be maxing out somewhere between 300-500MB/sec depending on when it was made? I don't keep track of exactly how much data a given Southbridge/SATA-controller can push, but maybe you can find a similar setup in the HDTune thread?

http://www.overclock.net/t/417765/please-post-your-hdtune-2-55-results-spreadsheet-up-please-re-read-first-post
     
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CPUMotherboardGraphicsRAM
FX-8350 @ 4.6ghz 1.425v Sabertooth 990FX Zotac GTX 1070 Amp! 32GB (4x8GB) Kingston Fury 1866mhz CL10 1T 1.5v 
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 
Optical DriveOptical DriveOptical DriveOptical Drive
Pioneer DVR-115DBK Samsung SH-S243D/BEBE LG GH22NS90 Lite-On EBAU108 External DVD 
CoolingCoolingCoolingOS
Noctua NH-D15 Fractal Design 140mm Fan - FD-FAN-140 Fractal Design 120mm Fan - FD-FAN-120 Windows 7 
OSMonitorMonitorKeyboard
Ubuntu 14.04 LTS Samsung 2343BWX 23" (2048x1152) BenQ GW2765HT 27" IPS LCD Monitor (2560x1440) Genius Keyboard KB-G235 PA 
PowerCaseMouseMouse Pad
Seasonic Platinum 1000w PSU - SS-1000XP Fractal Design Define R5 Steelseries Rival 6500 dcpi Mousepad + Desk 
AudioAudioOtherOther
Onboard Realtek® ALC 892 Cyber Acoustics CA-2992 2.0 Speakers Razer Krait 1600 DPI nGear G-C1601 Card Reader 
OtherOther
Pisen Card Reader Gigabyte M7 Thor 
CPUMotherboardGraphicsRAM
VIA Eden C7 1200mhz Jetway J7F4K1G2ES-LF VIA Onboard 512MB PC2-4200 
Hard DriveOptical DriveCoolingOS
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None Onboard VIA 
CPUMotherboardGraphicsRAM
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