Does it matter which is the lead card?

[CobraXP]

Does it matter which is the lead card in crossfire? Should the best overclocking card be the main display card if you have the 2 same card but one overclocks slightly higher?

[Chickenfeed]

They both need to be at the same clocks so it doesn't matter as you are limited by the weaker of the two.

[CrimInalA]

@ chickenfeed : clocks do not need to be the same on ati cards . None is downclocking to the other either .


I want to know too what is the best setup actually and if higher clock speeds are better to have on the 'main' card .

[wez]

Not sure whats better when you actually utilize both cards. But for the occasional app that lacks cfx support you'd want the fastest one as main

[BeepBeep2]

Fastest one as main.

Either way it will be like this:

Frame 1 time: 4.6 ms
Frame 2 time: 4.9 ms
Frame 3 time: 4.6 ms
Frame 4 time: 4.9 ms

...at least, thats the concept. reverse frames for lower clocked card as primary.

Non-crossfire games will utilize the primary card so I'd go with the faster one.

[CobraXP]

Thx guys