ATI 6990 or 5970 + 5830

[solo_2101]

Well im back for more...

so... What you Ladies and Gentlemen think...

I have a ATI 5830... if I get a ATI 5970. I could use crossfire... total 4320 Stream Processing Units...hmmm

or should I go for ATI 6990 which has newer technology but only 3072 Stream Processors, of course my ATI 5830 will be unusable... no crossfire...?

 

[gnomio]

Whats your native?
What cpu/ psu do you have?
5970 5830 wont be worth it.

 

[solo_2101]

well the Double Precision Compute Power
the 5970 get up to 928 GFLOPS
while the 6990 1.27 TFLOPs

not much of a difference that I see there..

 

[solo_2101]

5970 5830 wont be worth it.

why?

 

[gnomio]

you want to see scaling look here
http://hwbot.org/benchmarks/videocard

 

[solo_2101]

why is the 5970 more expensive than the 6990?

 

[ilysaml]

Who said it's not worth it ? yes it does ? what would be the problem at all ?
@ OP just ensure that you overclock the slowest Core, & memory clock to match up the higher one. For eg. if the 5970 is 730 MHz and 5830 is 800 Mhz, OC the 5970 to match the 5830 and same thing for the memory clock.

 

[solo_2101]

nevermind i was looking at the 6970

 

[ilysaml]

And for the 5970 VS 6990.. the 6990 is doing a bit better...

 

[solo_2101]

Who said it's not worth it ? yes it does ? what would be the problem at all ?
@ OP just ensure that you overclock the slowest Core, & memory clock to match up the higher one. For eg. if the 5970 is 730 MHz and 5830 is 800 Mhz, OC the 5970 to match the 5830 and same thing for the memory clock.

like I said before...
I have the 5830 with the 5970 would that be better that a 6990...?
I guess that should be the question...

 

[rocky41]

If HD 5970 is costlier than HD 6990 then you can buy 6990, it is more improved version for their DX 11 with better tessellation. So in the games like Metro and other DirectX games where HD 5970 sucked big time HD 6990 actually performed very well so going with the new technology is better in my view.

 

[ilysaml]

Yes, technically it should be better than HD 6990 if you just do as i said to match both cards so that no one is lagging the other. There's no a lot of benchmarks for HD 5970 TriFire but so far till now i saw HD 5850 with HD 5970 in TriFire and they are doing pretty good better than HD 6990

 

[ilysaml]

If HD 5970 is costlier than HD 6990 then you can buy 6990, it is more improved version for their DX 11 with better tessellation. So in the games like Metro and other DirectX games where HD 5970 sucked big time HD 6990 actually performed very well so going with the new technology is better in my view.

Well, looking at the prices on ebay the HD 6990 is $150-200+ over the HD 5970... both HD 5K and 6k series are DX11 capable and no much difference between them, the power of the HD 6k series would be in the more transistors, core & memory clock... that's all
A 5870 is doing much better than HD 6850/70 and very close to a HD 6950
The HD 6K series were equipped with 2 GB of VRAM to get a great support of Eyefinity besides it has a better scaling in CF than 5K, run much better quite and cooler.

 

[dalauder]

I'd get two 6950's 2GB in crossfire instead of a 6990. Cheaper and better overclocking--unless you're planning on Quad Crossfire sometime.

I haven't seen enough benchies of assymetrical crossfire to recommend the 5830 + 5970. I feel like there's a lot of options you have though that are cheaper if all you're looking for is a big bump in performance from the 5830. What resolution do you play at? How many monitors?

 

[rocky41]

And by the way 5970 is already dual card so mixing another single card for crossfire is quite a new thing that i haven't heard, so its totally up to you whether you want HD 6990 which is better in terms of performance and performs better in DX 11 games or you can go with 6950's 2GB in crossfire as mentioned above this post.

 

[solo_2101]

I just run the Heaven Benchmark v2.5 on my 5830 and I'm surprise of the results...

 

[dalauder]

I'm not sure what information you were intended to convey with that benchmark post--that your monitor is 1680x1050? If that's what you want to tell us, then I can tell you that a single Radeon 6950 1GB can pretty much max out any game at that resolution. All the stuff you're suggesting is ridiculous overkill and not many people have info on it.

 

[solo_2101]

I'm not sure what information you were intended to convey with that benchmark post--that your monitor is 1680x1050? If that's what you want to tell us, then I can tell you that a single Radeon 6950 1GB can pretty much max out any game at that resolution. All the stuff you're suggesting is ridiculous overkill and not many people have info on it.

im saying that i am surprise of this results... for my 5830... which is only one GPU... 1120 SPUnits...

 

[ilysaml]

I'm not sure what information you were intended to convey with that benchmark post--that your monitor is 1680x1050? If that's what you want to tell us, then I can tell you that a single Radeon 6950 1GB can pretty much max out any game at that resolution. All the stuff you're suggesting is ridiculous overkill and not many people have info on it.

+1
and you'll need to OC your CPU to the limits if you want to Triple Fire, but Again a single GPU such as HD 6970 will be overkill for this resolution.

 

[solo_2101]

+1
and you'll need to OC your CPU to the limits if you want to Triple Fire, but Again a single GPU such as HD 6970 will be overkill for this resolution.

i know a that a 6970 is better that a 5830...

again just sharing my results...

 

[Yargnit]

Even if you go with the 5970, I wouldn't 3 way it with the 5830. If it was a 5850 maybe, a 5870 for sure, but by downscaling the 5970 to be effectively two 5830's as opposed to slightly underclocked 5870's you'll be giving up as much performance as you'd gain wit a third card. (Remember 3 way doesn't scale as well as 2 way)

The 6990 will have better Xfire scaling than the 5970, and way better than the 5970 + 5830, and will give you the best raw performance. But if you want to save some cash buy a 5970 and sell your 5830.

 

[solo_2101]

im not triple firing...
if if I get a 5970 then I wold be crossfiring
but if i go for the 6990 i wold only be using one...

 

[solo_2101]

So you are doing this without telling us what psu you have...

1050 watt psu

 

[solo_2101]

its a ultra x4...

 

[solo_2101]

well...

mobo GA-890FXA-UD5
CPU Phenom II X4 955
RAM G.Skill 8 GB (2 x 4 GB)