HD4850 crossfire dual x8 versus x16

i've seen so many benchmarks etc. about dual x8 vs dual x16 and i've gotten so many different results.

i recently bought a 4850 and i'm using it on my pci-e 1.0 motherboard at the moment. (which is performing amazingly well. runs crysis very high and is totally playable.) gpu-z says i'm getting 67.2 GB/sec bandwidth. i don't have anything to compare that to though, is that good/bad?

i'm looking to get a 4850 crossfire setup and was looking at this board
http://www.newegg.com/Product/Prod [...] 6813130172
which runs x8/x8. it's really cheap for a pci-e 2.0 board, but would it be worth it to get a board that runs x16/x16?
the x16/x16 ones i've seen are basically twice as much. is it worth it?

OR

if i don't go the crossfire route would it even be worth it to buy a new motherboard to upgrade to pci-e 2.0?


thanks

is it going to be an amd board or an intel board?


and i mean x16/x16 will be really useful for nextgen gaming...

awesome. i like very much. i thought i checked out this board before and it was more expensive, but apparently i missed something.

i'll probably go with this board then. thanks.

yeah. currently i have a 500W which won't do crossfire. i'm trying to sell my current computer and do a complete upgrade.

but if i can't do that, this case has really good cooling. and i did the fan fix in the CCC files and my 4850 is at 650/1050 at 45 degrees idle and 65 degrees load.

PCI-E 2 8x offers the same bandwidth as PCI-E 1 16x.
I wouldn't worry about it.

yeah i hear pcie2 x8 = pcie1 x16

but if my 4850s are gonna use the bandwidth then i wouldn't want to bottleneck them, especially if it's only $50 more. if the 4850s are designed for pci-e 2.0 then eventually games/drivers will require/support the extra bandwidth, correct?


also, aevm, i'm running my fan at 60%. i guess it's a bit noisy (hardly louder than my case fans, and i can't hear it while gaming whatsoever, but some people are picky about that.) when i got it the fan ran at 10% or 15% or something and was 70-90 degrees. and i didn't like it that hot. geckoars running his really low though, that's always nice.


but sweet. i'm gonna go with that board then. the 4850s are single slot so it should be fine. if i can sell my comptuer, and i'm looking at this case:
http://www.newegg.com/Product/Prod [...] 6811294003
becuase it looks like a jet. and should have good cooling for my cards.

appreciate your help guys.