Did you cleaned up the driver well before you install a new one.
You tried with a single card or with your CrossFire?

I wanna how much it has improved with HD4890. But it's ok.

so any1 using 4890 can give me the answer? pls.....

try dig ur answer here..
http://www.xtremesystems.org/forums/showthread.php?t=222693

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Added on May 8, 2009, 2:32 pmthis one good for reference..
http://hothardware.com/Articles/ATI-Radeon...0nm-GPU/?page=3

I am waiting for 5XXX series to build a new set of PC. hope I wont have to wait until the last quarter.

Are you sure CM690 can handle it. Hurm.. can you post some pic of your setup. Thanks~

AVIVO Video Converter 9.5 updated link

http://www2.ati.com/drivers/9-5_vista32-64_xcode.exe

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if gamer dun mind AA, there is little if not no different between 1GB & 512 version.
but again, if user dun mind crank up AA much, better just go for gtx260.

4870 usually dun perform dat well once resolution goes above 1900 * 1200