On Thu, 17 Jun 2010 09:44:40 -0300 Leonardo Carneiro - Veltrac <lscarne...@veltrac.com.br> wrote:
> On 06/17/2010 09:57 AM, Kevin Chadwick wrote: > > On Wed, 16 Jun 2010 23:30:58 +0200 > > Martin SchrC6der<mar...@oneiros.de> wrote: > > > > > >> 2010/6/16 Kevin Chadwick<ma1l1i...@yahoo.co.uk>: > >> > >>> I heard intel have postponed usb3 for atleast 6 months too. > >>> > >> Even worse: Their PCIe is too slow for usb3. > >> > >> Best > >> Martin > >> > >> > > Maybe if you're using lots of usb3s and a 16x graphics card etc, you may > > run out of bandwidth, but I heard the real reason is intel have some > > intermediary chips halfway between usb2 and 3 that need to be sold. > > > PCI-E has independent bandwidth for each lane, so you can use a full > blow 16x graphics and your 4x slot will not be affected. The only > exception is those mobos that have a 2 16x slots that actually runs in > 8x when both are in use. > A 16x graphics card uses 16 lanes and a 4x pci uses four but eventually you MAY? saturate your superio chip. Intel may be switching to something more like amd or have heat issues on the superio but I doubt that. You would saturate it quicker on an atom however but then it supports less ports. PCI-E is certainly not the bottleneck. I would be far more likely to believe the want to sell intermediary chips.
