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The crazy world of SLI & Price/Performance

post #1 of 12
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It's an odd state of affairs these days with the performance of sli/xfire and their price to performance ratio compared to single card solutions.

I was considering getting a 580gtx for $500, but it amazes just how much better 560ti's in SLI would be for the exact same price.

Furthermore, you could roughly match the performance of a 580gtx for $300 or less with some lower cards.

It's to the point now that I wouldn't even consider a single card solution anymore, anything can be done better and much cheaper in SLI/Xfire. I mean obviously in a perfect world I'd rather have a single card for the same price and performance.

Anyways anyone have any thoughts on what would make the perfect money shot of price/performance in a xfire/SLI setup.
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H♥neydew
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post #2 of 12
I got ordered two gtx 480s Galaxy Super OC cards for $228 AMIR each

these cards come with the accelero cooler and a backplate - and cost under $460 shipped for both

that is almost 2xgtx580 performance for less than the price of a gtx 580 at retail
post #3 of 12
yeah sli is great. but the only problem is games its not well optimized for/not supported...... some games get better performance than others. but other than that its great.
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my first child
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post #4 of 12
I don't believe there is a "perfect money shot of price/performance in a xfire/SLI setup" because everyone has different limits on how much they are willing to and can spend on there computer. Also, personally I prefer a single card to SLI because of the heat issue and it would require me to buy another power supply.
post #5 of 12
Thread Starter 
Quote:
Originally Posted by goldboy View Post
I got ordered two gtx 480s Galaxy Super OC cards for $228 AMIR each

these cards come with the accelero cooler and a backplate - and cost under $460 shipped for both

that is almost 2xgtx580 performance for less than the price of a gtx 580 at retail
Yeah that is wicked man, I bet that would absolutely demolish 560ti's and for less money too.
H♥neydew
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post #6 of 12
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Quote:
Originally Posted by v639dragoon View Post
I don't believe there is a "perfect money shot of price/performance in a xfire/SLI setup" because everyone has different limits on how much they are willing to and can spend on there computer. Also, personally I prefer a single card to SLI because of the heat issue and it would require me to buy another power supply.
Yeah I actually purposefully left the topic really wide open. It would totally depend on the type of budget and just how much performance you were looking for. Initially I thought I'd spend $500 on a gcard, but there are just soo many possibilites out there, it's blowing up my brain. I mean on one hand i could get the same performance for way cheaper, or spend the same and get something which performs way better.
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H♥neydew
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post #7 of 12
Quote:
Originally Posted by Squarepusher8888 View Post
It's an odd state of affairs these days with the performance of sli/xfire and their price to performance ratio compared to single card solutions.

I was considering getting a 580gtx for $500, but it amazes just how much better 560ti's in SLI would be for the exact same price.

Furthermore, you could roughly match the performance of a 580gtx for $300 or less with some lower cards.

It's to the point now that I wouldn't even consider a single card solution anymore, anything can be done better and much cheaper in SLI/Xfire. I mean obviously in a perfect world I'd rather have a single card for the same price and performance.

Anyways anyone have any thoughts on what would make the perfect money shot of price/performance in a xfire/SLI setup.

Honestly, It's amazing how much microstutter hurts multi GPU setups. On my main rig, depending on what I'm doing, I'm playing on anywhere from 1 to 3 gtx480s. With a single 480 I can play most games at 35 fps and be very happy, with 2 or more cards, pretty much anything below 50 feels like I'm getting fps in the 20s.

It's something that I think benchmarks don't stress enough and as a result, nvidia and amd focus on average fps, not minimizing microstutter.

In reality, I would say that when comparing single GPU fps with multi gpu fps, add 50 percent to the single GPU average, then compare the numbers. It really works out that multi gpu setups are not all they're cracked up to be.
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post #8 of 12
i had GTX260 black editions in 3-way sli before and they S***** games crashed with poor performance and lag spikes, sli wasn't supported well like these days.

i think sli is worth it now because its utilizing really well.. but lower cards sli is better than let say 580 sli..
post #9 of 12
Thread Starter 
Quote:
Originally Posted by Varjo View Post
Honestly, It's amazing how much microstutter hurts multi GPU setups. On my main rig, depending on what I'm doing, I'm playing on anywhere from 1 to 3 gtx480s. With a single 480 I can play most games at 35 fps and be very happy, with 2 or more cards, pretty much anything below 50 feels like I'm getting fps in the 20s.

It's something that I think benchmarks don't stress enough and as a result, nvidia and amd focus on average fps, not minimizing microstutter.

In reality, I would say that when comparing single GPU fps with multi gpu fps, add 50 percent to the single GPU average, then compare the numbers. It really works out that multi gpu setups are not all they're cracked up to be.
Hmmm, that is really interesting. It really wouldn't surprise me if there was a definite downside, it almost seems too good to be true. At the end of the day minimum frames are as important or more important than overall frames. I've heard the term microstutter float around, I've sort of forgotten about it, is that a well known issue people have with SLI/Xfire.
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H♥neydew
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post #10 of 12
Quote:
Originally Posted by Squarepusher8888 View Post
Hmmm, that is really interesting. It really wouldn't surprise me if there was a definite downside, it almost seems too good to be true. At the end of the day minimum frames are as important or more important than overall frames. I've heard the term microstutter float around, I've sort of forgotten about it, is that a well known issue people have with SLI/Xfire.
I would suggest taking a look at what kind of monitors Varjo is running. He may be one of the very few elite who can actually make use of a set of 2GB-3GB GPU's and still notice microstuttering with bleeding edge cards.

But to go back to your main points in the OP, it really comes down to your budget and expectations/requirements. If you want to run a single 1080p monitor at the maximum eye candy levels, your choices are pretty broad nowadays and a pair of GTX 560TI's is certainly a good option. However, if you are looking into what Varjo is running, then your options are slim and will almost always be very costly.

One thing to keep in mind though, if you do go with GTX 560's, you are limited to only Two-Way SLI, whereas the 570 and 580's can scale higher, but obviously cost more at the same time. Just something to think about in case you want to keep your options open for the future.
     
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