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** The Official ATI RV770/RV700 Series Review/Overclocking Thread **
- Thread starter gurusan
- Start date
Interesting to see and I have been waiting to see somebody post xfire results on a p35 board to see how crippled it is.
Looking at your results it would appear that it is not good with the exception of Devil May Cry 4 however a single 4870 would still match your xfire results as the 4870 really makes use of it's bandwidth in that game. I have seen even at 8xaa a 4870 getting a better fps in scene 4 so at 4xaa it would be even better.
All your results show no better improvement than buying a single 4870 card which would be cheaper than two 4850's anyway.
Interesting to see that at 1680x 1050 4xaa in Crysis, you actually dropped performance.
Glad to see it as I have been trying to decide between buying a 4850 now and adding another later or just buying a 4870 now. Thanks, you have now made my mind up for me
Aye, I wouldn't recomend anyone who is planning to stay on P35 to get CF 4850's, they'd be far better off with a single 4870.
P35 is just a temp thing for me, i've got an X38 comming to replace it.
Interesting to see that at 1680x 1050 4xaa in Crysis, you actually dropped performance.
Yeah, I think with that test the 4x Slot card is holding the faster card back, there just isn't enough bandwidth to keep up with the demands of the game so it actually slows it down.
I've repeated the test several times and its the same every single time, there is either no improvement or a slight drop in framerate.
ATI Hotfix...unless there was a later hotfix drivers or 2 versions ?
Other Strange thing is gurusan is that's 2 of us who get artifacting in CPU test in 3dmark with Your bios or versions of it, OK could be, but there's no way of telling that the card is dropping to a combination of 3d clocks but lower voltage !
Don't forget also Your card would Max out in CCC before You got serious .... and I've not seen others
Don't forget also Your card would Max out in CCC before You got serious .... and I've not seen others
Don't forget the 45nm P45....Loverly and cool also it does do a much better Job with 2x 8pcix2, I don't think I've seen more than 37c on the northbridge
Yeah but problems there as well. 4 series in CF on the p45 boards are limited as well and crippled at high res.
They shouldn't be bandwidth wise but maybe a glitch with the p45 chipset or bios problem but no guarantee that it will be solved yet.
Hence xfire on p45 boards not much better than p35 boards so your only really choices atm are x38/x48 boards.
My x38 is running x16 / x4 with these 4850's, im at a loss how to get them x16 / x16.
What board? You tried disabling the PCI-E 1x slots?
I do not have any X38/48 boards to compare but a guy backed to back with 2 hd3870x2 with no loss on the Asus board anyway !
what's Your source..not that tweaktown review ?
Yeah. Is there a problem with their review now that I am not aware of?
IIRC a gigabyte P45
....I would in no way take that as close to typical !..Struck me what a bunch of muppets they are, have a read through it.Phew thats exactly what I wanted to hear!
Rather have a user of the cards state that its fine than take the tweaktown review as gospel.
IIRC a gigabyte P45
True it might be Tweaktown's problem or it might just be Gigabytes p45 boards.
However, until more people put posts up with xfire on a p45 board especially 4870's in xfire then I'm not prepared to take the risk in swapping boards as it might not be any better than my p35 board and I will have wasted my money on two 4870's
I must admit I am thinking these new 4800 series are running some sort of locked bios, now weather it's in co-operation with drivers or not I wouldn't know but when You see things like this it fuels My thoughts !
http://www.techpowerup.com/64446/ATI_Preparing_Super_RV770_to_Challenge_GeForce_GTX_200_Series.html
http://www.techpowerup.com/64446/ATI_Preparing_Super_RV770_to_Challenge_GeForce_GTX_200_Series.html
True it might be Tweaktown's problem or it might just be Gigabytes p45 boards.
However, until more people put posts up with xfire on a p45 board especially 4870's in xfire then I'm not prepared to take the risk in swapping boards as it might not be any better than my p35 board and I will have wasted my money on two 4870's
I have a P5Q-delux with 2 HD4850's what do You need to know ?
Seen nothing much on 4870 results by Owners here, running on anything !
True it might be Tweaktown's problem or it might just be Gigabytes p45 boards.
However, until more people put posts up with xfire on a p45 board especially 4870's in xfire then I'm not prepared to take the risk in swapping boards as it might not be any better than my p35 board and I will have wasted my money on two 4870's
I Ordered yesterday two HD4850's and a Asus P5Q Pro so once I get it all built up (need to do a complete overhaul
) I will post some benchmarks. You suggesting review sites are not always of the highest integrity ?.....dam right their not I cannot Make a single HD4850 in a 3.3gz quad system pull more than 105watts in the desktop, I can get that down to 95 watts with speedstep !
They all claim the gtx280 uses less power at Idle..Yeah right !!,,what they all forget to say is the very good power management only works with Nvidia chipset Mobo's