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Quad-SLI GTX590 on P67 mobo - Page 2

post #11 of 21
Quote:
Originally Posted by RagingCain View Post
Why? Not as ridiculous as 2x 6990s?

I guess 2x 6990s are serious, but 2x 590s is ridiculous.
Gosh, it looks to me that the milquetoast is saying the GPU processing power of Quad 590 is massive overkill to a single monitor and the 1.5 GB VRAM limits its ability to max a triple monitor setup effectively. While the quad 6990 has 33% more VRAM to handle those larger pixel amounts.
Edited by Draygonn - 4/7/11 at 9:49pm
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post #12 of 21
Quote:
Originally Posted by RagingCain View Post
Why? Not as ridiculous as 2x 6990s?



I guess 2x 6990s are serious, but 2x 590s is ridiculous.

Some people don't buy ATi/AMD and want nVidia. Considering the performance is on par with 6990, I don't understand your logic at all.

3x 580 3GB Models in the US are very hard to come by, and if imported from Europe are very expensive. Then contemplating the heat generated by three would best be suited under water, thus furthering the cost, and then power requirements of three cards is something to consider.

<etcetcetc>
Just to be clear, I'm not bagging on a single 590 setup AT ALL. I'm saying quad-SLI (2x590's) SPECIFICALLY ... is a bad idea IMHO.

Yes, every SLi and Crossfire setup has the same basic issue with regards to memory (I've only explained the whole SLI/memory thing like 1000 times on OCN) HOWEVER in this case we're talking about (not two, not three, but) FOUR (4) 580 CORES ... and only 1.5GB of available VRAM.

I'll say it again ... that is way too much GPU power to only have 1.5GB of vram.

By the time you're in a situation where you're going to actually benefit from all that GPU power (and by 'benefit' I mean 'be able to play a game at higher settings than you could with, say, 1 GTX590'), such as playing Metro at triple monitor resolution ... you're going to be running out of VRAM.

Again, to be clear ... to me, being able to run CoD 4 at 500fps instead of 300fps is not 'a benefit' worth paying for. If I'm buying a 2nd 590, I want higher PLAYABLE SETTINGS ... more AA, higher resolution, on my triple monitor setup, on the toughest games out there ... settings that I *couldn't run* with my single 590.

And I'm saying ... I bet that basically will virtually never happen ... where some set of settings is NOT playable on a single 590 ... but totally IS playable on two 590's.

I had quad-SLI 295's for a time ... they had the exact same problem I speak of.

You can agree with me or not, man, but I'm saying ... if it were me, there's no way in heck I'd choose 2x590's. A single card setup, sure. A 590 is fine by itself. But not on a quad-SLI rig. 4 x 580 cores with only the vram of 1 x 580 ... is a recipe for disappointment.

And again, I realize the 2x6990 works the same way with the memory capacity, but it's still 33% more memory. It's a better 'balance'.

Quote:
Originally Posted by james8 View Post
the 590 is a really poorly designed card imo. power circuitry aside, the amount of VRAM is highly limiting. they really should've made a 6 GB GTX 590 instead. then it'd be the quad-SLI multi-monitor king.
Quote:
Originally Posted by Draygonn View Post
Gosh, it looks to me that the milquetoast is saying the GPU processing power of Quad 590 is massive overkill to a single monitor and the 1.5 GB VRAM limits its ability to max a triple monitor setup effectively. While the quad 6990 has 33% more VRAM to handle those larger pixel amounts.
^^^ These guys get it
Edited by brettjv - 4/8/11 at 12:25am
    
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post #13 of 21
lil off topic. but just realised... 1 590 uses about the same underload as my Whole rig does haha
    
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post #14 of 21
Yes you can have Quad-SLI Gtx590's... but I wouldn't recommend it.
    
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post #15 of 21
Anyone else seen this? Guru3d claim you need a NF200 chip on the board to support two 590s. After seeing the tomshardware list, I am thinking that the board must just be listed as officially supporting quad-sli and not need the NF200 chip.
 
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post #16 of 21
Quote:
Originally Posted by brettjv View Post
Just to be clear, I'm not bagging on a single 590 setup AT ALL. I'm saying quad-SLI (2x590's) SPECIFICALLY ... is a bad idea IMHO.

Yes, every SLi and Crossfire setup has the same basic issue with regards to memory (I've only explained the whole SLI/memory thing like 1000 times on OCN) HOWEVER in this case we're talking about (not two, not three, but) FOUR (4) 580 CORES ... and only 1.5GB of available VRAM.

I'll say it again ... that is way too much GPU power to only have 1.5GB of vram.

By the time you're in a situation where you're going to actually benefit from all that GPU power (and by 'benefit' I mean 'be able to play a game at higher settings than you could with, say, 1 GTX590'), such as playing Metro at triple monitor resolution ... you're going to be running out of VRAM.

Again, to be clear ... to me, being able to run CoD 4 at 500fps instead of 300fps is not 'a benefit' worth paying for. If I'm buying a 2nd 590, I want higher PLAYABLE SETTINGS ... more AA, higher resolution, on my triple monitor setup, on the toughest games out there ... settings that I *couldn't run* with my single 590.

And I'm saying ... I bet that basically will virtually never happen ... where some set of settings is NOT playable on a single 590 ... but totally IS playable on two 590's.

I had quad-SLI 295's for a time ... they had the exact same problem I speak of.

You can agree with me or not, man, but I'm saying ... if it were me, there's no way in heck I'd choose 2x590's. A single card setup, sure. A 590 is fine by itself. But not on a quad-SLI rig. 4 x 580 cores with only the vram of 1 x 580 ... is a recipe for disappointment.

And again, I realize the 2x6990 works the same way with the memory capacity, but it's still 33% more memory. It's a better 'balance'.





^^^ These guys get it
I don't think any of the dual GPU cards were made for the specific intention of having people use two of them on the same computer, as you said, there isn't enough RAM and furthermore, scaling seems to fall off after the third card anyway.

I think the 590 is a good card for people who:

A. Want the biggest and best single card solution for the bragging rights.
B. Are limited by space or PSU or other considerations.

3GB GTX580s or other individual GPU solutions are much better for people who want to leverage the full potential of the silicon and not be hamstrung by factors such as cooling.
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post #17 of 21
Agreed, Elmo, but also let me add ...

C. Running quad-SLI 590's would be cool if your primary interest is in benching rather than gaming. You'd be able to attain some wicked scores on things like 3dMark since none of the presets on any version are >1920 res or require >1.5GB of vram, and you're just shooting for high FPS ... so it's a good setup for that
    
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post #18 of 21
Quote:
Originally Posted by mdatmo View Post
Guru3d claim you need a NF200 chip on the board to support two 590s. After seeing the tomshardware list, I am thinking that the board must just be listed as officially supporting quad-sli and not need the NF200 chip.
Perhaps they recommended the NF200 chip to get a P67 back to x16 x16. Can't imagine running 2 580 GPUs off an x8 would work too well.
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post #19 of 21
Thread Starter 
I got word from ASUS telling me that two 590's on the Maximus IV Extreme is supported!
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post #20 of 21
Quote:
Originally Posted by zerounleashednl View Post
I got word from ASUS telling me that two 590's on the Maximus IV Extreme is supported!
Read the past few posts .


VRam doesn't stack. If you have 2 GTX 590s, you have 1.5GB of VRAM total.
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