ATI HD4800 Review Thread

[gosh]

Did he say what card that was tested on? Gotta be careful now with the some of the nvidia cards overclocking based on the PCI-e frequency.

Ok
Here is another hint about these fast cards will be bottlenecked buy the FSB
Firingsquad did a review on HD4850 and HD4870 and one strange thing is that they differ more in performance when they are alone compared to running them in crossfire on the C2Q used in the test.
In this test (CoH) they hardly see any difference
http://news.firingsquad.com/hardware...ance/page9.asp

Compare that test with this where a slow Phenom 9600 is much faster than a C2Q (3,2 GHz) which indicate that CoH is very heavy on I/O
http://www.overclockersclub.com/revi...l_q9450/14.htm

AMD is has much better I/O performance and that game may need a lot of I/O. HD4850 and HD4870 can handle huge amount of I/O and that has to go through the FSB. It could be that these cards can't perform at 100% on Intel