*Official* ATI Radeon HD4850X2 Thread

[vicious_fishes]

Originally Posted by Redbull1985

I was thinking of going tri-fire...will it be a waste if i get a 1GB 4850/4870 to go with my 512MB/core 4850x2?

If i get 1GB card, will i have 2GB VRAM in total?

in total yes, but each gpu only uses the ram directly connected to it.

personally i'd sell your card & grab a pair of 4890's.

[rico2001]

Originally Posted by po-chi

here are some of my benchies as promised!

Street Fighter IV w/ max settings:


3dmark vantage & 3dmark06

my 3dmark06 score is pretty low, especially the SM 2.0.. still troubleshooting to find out what is causing the problem. before, i had a 4850 scoring 16.5k and it suddenly dropped to 14.9k. now that i'm using a 4850x2, i still think that there's a problem.

Nice scores, po-chi! rep+ for your effort. Your 3dmark06 score is fine and the SM scores also look fine. I get SM 2.0 7997, SM 3.0 9488. I believe our scores are on par with the rest of the 4850 X2 owners.

Originally Posted by guscol

ok here my humble rig

Nice rig pic, very clean looking setup.

Originally Posted by Redbull1985

I was thinking of going tri-fire...will it be a waste if i get a 1GB 4850/4870 to go with my 512MB/core 4850x2?

If i get 1GB card, will i have 2GB VRAM in total?

Well not a waste, just need to ask yourself do you really need it. I’m a CF nut, so all of this is worth it to me. Tri-fire scales very well even with 512mb of ram. The shortage of ram only hurts you at and above 1920x1080. Under those resolutions, you will see just about the same performance as 1GB versions. If you are looking for more in game performance, more fps, tri-fire is great for that. If you are only looking to increase you 3dmark scores, don’t bother with tri-fire, gains will be small. In CF configurations, memory is shared not added together. So your 4850 X2 has 512mb for each gpu equaling 512 mb of total shaded memory. In getting a 1GB 4850, 4870 or 4890 to tri-fire with your 4850 X2, will cap its memory down to 512mb, and for the 4870/4890 cap its memory speed, you can think of it as working toward the future. I don’t know how often you buy cards, but you can play with the tri-fire for awhile and then sell the 4850 X2 down the road.

Originally Posted by vicious_fishes

in total yes, but each gpu only uses the ram directly connected to it.

personally i'd sell your card & grab a pair of 4890's.

Stop trying to push us our of our great 4850 X2 cards before its time. The 4850 X2 is still faster than an oc'ed 4890. You should buy a 4850 X2 to tri-fire with your 4850.

[Shroomalistic]

i tried running quad last night, just couldnt get it to work. as soon as I would install the card, bios would no longer detect my sata controller. drove me nuts and I finally gave up.

[rico2001]

Originally Posted by Shroomalistic

i tried running quad last night, just couldnt get it to work. as soon as I would install the card, bios would no longer detect my sata controller. drove me nuts and I finally gave up.

Need more power. With you quad cpu and (2) 4850 X2, you are probably right at 750W. When I just had one psu (650w), and just got my 4850 to go tri-fire, my pc won't even boot and I have a dual core cpu. I added the thermaltake 450w vga psu just to power my second card.

run the calculator
http://extreme.outervision.com/psucalculatorlite.jsp

I'm at 720w idle, 790w peak with current setup.

[rico2001]

My lights flutter a bit in the house when I fold. I don' t think that's good.

[azianai]

rico, funny you mention that
my light flutters when i turn my printer on =P
And i jump the power when my PS3/Notebook/PC/TV/Fans are on =D

[SigSauer]

Just got my card back from RMA and it seems this one has a new bios, fans are running at 3% and at boot it only goes at about 50% instead of 100% so its finally quiet

[rico2001]

The 4850x2 Cheap-O Cooler Mod

Written by OCN member: vtech1

[vtech1]

Originally Posted by rico2001

The 4850x2 Cheap-O Cooler Mod

Written by OCN member: vtech1

total cost of this mod is: $0.00
here is a pic of the finished mod, check out my thread to see the process of how i did it

[guscol]

Nice mod.