Originally posted by: Concillian
Originally posted by: MartinCracauer
But one more question: what is the point about the PCIe 1x slots?
I don't think there are any cards available and if they were they would be the same speed as 33 MHz 32 bit PCI, would they?
The primary benefits of PCIe 1x:
It is a DEDICATED BUS, so cards do not share bandwidth. PCI was shared, so with IDE ports on PCI and a gigabit card on PCI working at the same time, all the PCI bandwidth was gone for EVERYTHING on the PCI bus.
IDE ports get a dedicated PCIe 1x
aftermarket RAID/SCSI cards will not soak up PCI bandwidth either. U320 SCSI? Yeah, not much use over U160 in a 32 bit 33MHz PCI slot that maxes at 133 MB/sec for EVERYTHING on the bus.
Sound cards can be made that transfer MUCH more info across the bus. We will start seeing sound cards doing more than they have done in the past, like surround encoding. because the PCI bus IS a limitation for some things from a sound card point of view, especially when that bus is shared with other devices.
In my mind the PRIMARY reason for going to PCIe is the peripherals OTHER than the graphics card. I mean to get something with similar throughput capability on PCI, you have to buy a server board with 64 bit PCI slots of some sort, either 64/66 or 64/100 or 64/133MHz, and people who make add on cards are not going to make too many cards for 64 bit PCI slots.