Crossfire X38 or P35 chipset

[bowza]

ok there is a fair amount of price between the 2 motherboard chipsets. so what real difference will be seen in a crossfire set up,

P35 with 2 x 3870

v's

X38 with 2 x 3870

Any benchmark results out on www that have done ths comparison

Thanks

Bowza

 

[RJC]

I have not got any benchmarks but X38 chipset allows both cards to run at 16x instead of 4x and is PCI express 2.0 compatable.

Edit: you might already know the above.

 

[eyetrip]

The 4x PCI-E slot hinders performance horribly, so if you want to crossfire get an x38.

I have tried on a P35 with 3850's and it jsut wasn't worth it.

 

[-iceblade^]

http://www.bit-tech.net/hardware/2007/10/12/crossfire_comparison_intel_x38_versus_p35/1
http://www.thehardwarelabs.com/forums/showthread.php?t=625

. Personally, i would think it's worth it to put an X2 in - a simple '70 will just be bottlenecked, so there's a chance that with an X2, you'd get quite a bit more performance to make it worthwhile...

that's a theory, though... don't quote me on it as i've not tried it

 

[gt_junkie]

Closest i've come is having 2x 2900XT's on a P35 vs a 3870X2. The X2 gave me better benchmarking scores and more fps in games.

I'd have to agree that it will be the P35's second 4x slot that is bottlenecking performance.

gt

 

[SANDMAN666]

X38 all the way...i have the DFI Lan Party DK X38-T2R Intel X38 with two sapphire 3870 xt`s running crossfire mode and the performance is absolutely ground breaking compared to my old single x1950xt,19000+ fps in 3dmark 2006 with both cards clocked to 875x1270 core and memory respectively.

 

[schumi84]

If you had a P35 board already then i wouldnt have thought the increase in performance would warrant the big jump in cost to swap over, but as a new build i would go for the X38.