From February:
http://www.hardocp.com/article/2010/..._motherboard/2
From April:When buying your new motherboard there is no performance reason we can point to that suggests you should select a motherboard with SATA 6Gb/s. In fact, if you are running a RAID 0 setup, you are actually better off going with Intel's ICH10R solution. I see a lot of tech editors complaining about Intel's lack of currently having a SATA 6Gb/s controller on the market right now, and I have to ask why that is. The bottom line is that Intel knows there is no advantage to currently bringing the product to market until it has its SATA 6Gb/s Solid State Disk drives for sale. From all the data, that makes perfect sense to us here at HardOCP.
http://www.tomshardware.com/reviews/...gb,2583-8.html
tl;dr: boards currently make compromises on where to push all this disk I/O, which can degrade performance to the point where it's not worth it...for now.Existing mainstream chipsets from do not provide sufficient PCI Express bandwidth for USB 3.0 or SATA 6Gb/s controllers because, while PCH-based PCI Express lanes supposedly offer a second-gen interface, they run at first-gen transfer rates (250 MB/s instead of 500 MB/s). Motherboard manufacturers can work around this by routing add-on components through PCIe switching logic or by physically wiring these controllers to PCI Express 2.0 lanes, which typically drive your graphics cards. AMD chipsets (starting with the 700-series) are fully PCI Express 2.0-compliant and consequently don’t exhibit such a limitation.
Except now it's July, so where are the boards that don't bottleneck disk I/O in the system bus? I'm looking to replace my motherboard this year and this question lingers since I edit video on my computer and fast disk I/O is crazy nice when you're doing that. How much longer do I have to wait before it's as simple as 'buy the board, buy the disk, done?'
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