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3 580's 3gb or 2 6990's - Page 6

post #51 of 135
Quote:
Originally Posted by vipergod2000 View Post
Well, from my limited knowledge of AMD branded products, I guess their worst, was my best to recommend. Should I just say "If you say so" ?

The 5970 had its plus points and reigned supreme for a while, as nVidia's last dual gpu card was a while back - hence my contributing to it's success. Benchmark reviews spoke a lot about the 5970 in frames per second. As newer cards came out, older cards, like the 5970 began diminishing their appearances in reviews to be replaced by newer generation cards, hence my point.
I'm not sure how exactly do you measure success.
Does it do better in benchmarks on single monitor? Yeah.
So do the 590 and 6990. They are at the top of the benchmarks.
So why not get them if that is how you measure success?

If you say they have issues, why than aren't you referring to the 5970 issues?
It has problems with eyefinity and crossfire, it would not scale at all in most games in quad-fire.

So how exactly do you say its "supreme" and best over the other dual GPUs, like the 6990 and 590, which actually do scale very well, and do work great for surround?

Its funny how you recommend a GPU with your "limited knowledge" without referring to the card's major issues, while point out the others?
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post #52 of 135
Quote:
Originally Posted by windfire View Post
I perceive that money (''quite large sum of money''), heat and noise (''under water'') are not going to be an issue.

And I note that you will run 3x1080p monitors. Because of this ultra resolution, I suggest three GTX580 3GB models for the 3GB VRAM. It will allow you to go higher in AA.

Right now, Palit, Gainward, Inno3D, EVGA and Zotac have released (or will very soon release) 3GB models.
this. rep'd
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post #53 of 135
Quote:
Originally Posted by vipergod2000 View Post
I read the first few reviews on the 6990 and yes, AMD was crowned, but the issues I highlighted WERE LEGITIMATE ISSUES HIGHLIGHTED IN THOSE REVIEWS - and were also true especially to the GTX 590.
Change you tone, please. And you are not ''ruining my day'' at all.

Those reviews were often made with 11.2 drivers that were not even supporting the 6990 properly. The only drivers supporting the 6990 are 11.4 preview drivers for now. And with the stock air cooler.

Secondo. You said there was power issues with the 6990. There is none. There is power/drivers issues with the 590, we all lnow that. So stop putting the 6990 in the same category with the 590 for the ''power issues''. They are not.

And yes, you can overclock a 6990 MORE then 2X 6970, or any vanilla 580.

On air, the 6990 is at the limit thermally. But on water, the 6990 is a totally different card. And those reviews didn't use a waterblock. Not a single one of them. And the 590 with a waterblock is like a 590 on air. You can't OC it to 2X580 level. But a 6990 is ALREADY 2X6970, and you can OC it higher then 2X6970with a warterblock on it.

So stop putting the 6990 and 590 again in the same category regarding overclocking with watercooling. They are not. One is an OC beast, while the other is a kitten throttled back by bad drivers, OCP and hard-lock voltage.

And don't stay stuck in the past. AMD 6xxx serie scaling is better then Nvidia.

And the 6990 is a different animal then the 5970. No comparison possible. The 6990 is 2X6970, with more OC potential then the separate parts.

It's impossible to reach 580 SLI OC level with a 590, even with a waterblock.

Find me a single review where they are using a waterblock on the 6990. Totally different enthusiast card with a waterblock. AMD made that card for enthusiasts, and for extreme OC with a waterblock or extreme cooling.
Edited by Levesque - 4/17/11 at 10:15am
    
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post #54 of 135
Quote:
Originally Posted by Defoler View Post
I'm not sure how exactly do you measure success.
Does it do better in benchmarks on single monitor? Yeah.
So do the 590 and 6990. They are at the top of the benchmarks.
So why not get them if that is how you measure success?

If you say they have issues, why than aren't you referring to the 5970 issues?
It has problems with eyefinity and crossfire, it would not scale at all in most games in quad-fire.

So how exactly do you say its "supreme" and best over the other dual GPUs, like the 6990 and 590, which actually do scale very well, and do work great for surround?

Its funny how you recommend a GPU with your "limited knowledge" without referring to the card's major issues, while point out the others?
I wasn't recommending the 5970. If you understood my post, you would have noted that I mentioned the 5970 is the only AMD card I would ever recommend. Why would I recommend that card now, over the 6990? That's just misconstrued, and quite obviously stupid. It had it's time, and reigned supreme AT THE TIME. Look, the 5970 had its time and went, and I am not recommending it. I am recommending the the 580s.

My limited knowledge applies to the AMD brand cards.


@ OP = go for the 580s. You will not regret it, and that 3GB will go a long way with any multi display setup. That, is probably the point that takes the cake.
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post #55 of 135
Quote:
Originally Posted by Levesque View Post
Change you tone, please. And you are not ''ruining my day'' at all.

Those reviews were often made with 11.2 drivers that were not even supporting the 6990 properly. The only drivers supporting the 6990 are 11.4 preview drivers for now.

Secondo. You said there was power issues with the 6990. There is none. There is power/drivers issues with the 590, we all lnow that. So stop putting the 6990 in the same category with the 590 for the ''power issues''. They are not.

And yes, you can overclock a 6990 MORE then 2X 6970, or any vanilla 580.

On air, the 6990 is at the limit thermally. But on water, it's a different card totally. And those reviews didn't use a waterblock. Not a single one of them. And the 590 with a waterblock is like a 590 on air. You can't OC it to 2X580 level. But a 6990 is ALREADY 2X6970, and you can OC it higher then 2X6970with a warterblock on it.

So stop putting the 6990 and 590 again in the same category regarding overclocking with watercooling. They are not. One is an OC beast, while the other is a kitten throttled back by bad drivers, OCP and hard-lock voltage.

And don't stay stuck in the past. AMD 6xxx serie scaling is better then Nvidia.

And the 6990 is a different animal then the 5970. No comparison possible. The 6990 is 2X6970, with more OC potential then the separate parts.

It's impossible to reach 580 SLI OC level with a 590, even with a waterblock.
Well congratulations on your advocacy of such a remarkably ass spanking card. I do admit that I stand corrected in the power demands, as I had assumed the caymans were as bad as the 5xxx series AMD cards (as I remember correctly, they're from the same manufacturing process).

I hadn't kept track of the 6990 developments, and I've never seen a waterblock for a dual gpu card before - and I knew the heat problem was inherent with the 6990. Glad it's working out for you then.

However, in the greater context, i believe the 3gb of memory does enable you to take things further without the cards falling to their knees overwhelmed by drastic resolutions.

If you check out Vega's sub zero Quad SLI setup (just google it) - he's pushing 3 x 2560*1600 30inchers in portrait mode (4800x2560) and the 3gb vram is the only way he can go with it.

I never really had much reason to think about owning every single flagship card, because i dont believe in paying the premium price, only to be overthrown within 6 months by a newer, better model - hence my purchase of a GTX 570 instead of the 580 - as it does what i need at 1080p. But after reading up on the 6990 club clocks, i must say, its quite impressive.

I wonder how that damn waterblock looks like!
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post #56 of 135
If you are going for best performance, I would get the 3x GTX 580 3GB.

If you are going for really good performance, cheaply, get 3x 6970s.

Just skip the 6990s, the performance gains are just not there.

Expect a typical GTX580 core able to overclock 20~25%, and the memory 10~15% before GDDR5 error correction begins.
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post #57 of 135
Waste of money. Just go with trifire 6990+6970 or 580 SLI.

Give the rest of the money to Africa.
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post #58 of 135
vipergod2000, your assumptions are pure gold...

How about you stop saying things about cards which you aren't sure about or by "issues" no one had ever heard of, or assumptions which you clearly don't understand in?

You are digging a hole under yourself.

And Vega, is something special.
He is pushing huge resolutions which the OP won't use any time soon, and does that in a much more extreme way.
There is no actual "need" for 3GB. It just helps a huge lot if you want to get high AA.
Even 2x6990 can give you over the 60fps in almost every game with at least 2xAA and in eyefinity on 3x1080p or 1200p.
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post #59 of 135
Quote:
Originally Posted by Defoler View Post
vipergod2000, your assumptions are pure gold...

How about you stop saying things about cards which you aren't sure about or by "issues" no one had ever heard of, or assumptions which you clearly don't understand in?

You are digging a hole under yourself.

And Vega, is something special.
He is pushing huge resolutions which the OP won't use any time soon, and does that in a much more extreme way.
There is no actual "need" for 3GB. It just helps a huge lot if you want to get high AA.
Even 2x6990 can give you over the 60fps in almost every game with at least 2xAA and in eyefinity on 3x1080p or 1200p.
Assuming the drivers don't BSOD (atikmdag.sys failure) or CTD with the CrossfireX enabled. They need to do driver fixes ASAP, I would be pissed having spent that much on 2x 6990s and getting intermittent Quad-CrossfireX support.

Defoler is correct, 3GB and even 2GB is overkill for everything under 2560x1600. 2GB with all eye candy and 4x or 8xAA is good for 2560x1600. 3GB is an absolute treat on 5760x1080 and higher resolutions though.
Edited by RagingCain - 4/17/11 at 11:07am
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post #60 of 135
My 1.5s are just fine at 5760x1080 with a healthy dose of aa. I don't max out aa in every game I play and have yet to issue any dips below playable framerates. I'm quite happy with what I have...and when I push clock speeds, it makes me all the merrier. I would have been all over the 3gb models had they been available at launch when I decided enough is enough. (For when I go triple 1600p)

Btw: not an nvidia fanboy, and I've owned 5770s/5870s/460s and a 5970...ati left me a little bitter, but I do not blame the cards in the slightest...those drivers were a different story altogether. Granted Fermi is a power hungry outlet wrecker, I've yet to be annoyed with driver related crashes and funky multi color artifacting screens.

To each their own.
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