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GTX 470 SLI OC vs GTX 560Ti SLI OC

post #1 of 16
Thread Starter 
I'm planning on building a new rig soon, and am experiencing a dilemma. I'm looking at getting either two GTX 470s or GTX 560Tis from EVGA B-stock to run in SLI. The benchmarks are pretty clear that the GTX 560Ti is better than the GTX 470 at stock. BUT it also has a ~200 MHz stock clock advantage. I have been unable to find a comparison between the two cards in SLI at their expected maximum stable overclocks (~800 MHz core for the GTX 470 and ~950 MHz core for the GTX 570Ti).

Note that two B-stock GTX 470s would cost only $320, while the GTX 560Tis would cost $360. Another thing to consider is that the GTX 470s consume substantially more power than the GTX 560Tis, so the price difference could possibly be more than made up for by only having to get a 700/750W power supply with the GTX 560Tis, as opposed to a ~850W for the GTX 470 SLI.

Thoughts? I'm not THAT worried about the increased heat of the GTX 470s. As long as they don't break 100C, I'm happy. I'm going to be using headphones exclusively with this rig, so any increased fan noise to keep the temperatures under control is a non-issue.

And then again, there's also the option of two GTX 460 1GBs for only $220...

And it might be worth getting a good 850W PSU anyway, even with a GTX 560Ti or GTX 460 set up, for future-proofing...
Edited by The_0ctogon - 7/21/11 at 11:06am
    
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post #2 of 16
470's in SLI suck butt in terms of heat. Performance is godly, but not at the cost of having to keep the cards at stock speeds. I tried it with normal reference coolers and couldn't keep temps low enough to not effect my gaming due to worrying about temps.
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post #3 of 16
470s under liquid cooling,i use a 750w for the sli setup,and im led to beleive OCced AMD setups use more energy than the corresponsding intel so i guess you'd be ok.
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post #4 of 16
If the 560 Ti are cheaper than the 470, get them.

560 Ti : a bit more perf, less heat.
470 : more memory, wider memory bus.
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post #5 of 16
Personally I'd go with the 460's just because they are cheap and still bangin' cards. The 560 is said to be 20% faster than the 460 but that goes out the window once it is overclocked. If I am remembering right a 560ti has the potential to match a 570 when overclocked.

I never cared for the 470's mostly because of how much hotter the card is. Heat may not bother some people but it is a huge factor for me when buying a card and considering you're going to throw 2 in SLI it's going to be a sauna in your case.

If you want to save money - 460 in SLI
If you want better performance - 560ti in SLI
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post #6 of 16
Thread Starter 
I'm wanting this rig to last me through college (4-5 years) with as little upgrading as possible, so I'm definitely partial to better performance as compared to just saving money. I'm leaning towards the GTX 560Tis. I've had a single GTX 470 before, and it gave me nothing but problems, so that put a bad taste in my mouth about them. That, and these will be going in a mATX case (NZXT Vulcan), so I'm guessing the heat output of the 470s would be a little over the top to say the least.

PSU recommendation for two GTX 560Tis? I want to try to keep the price under $130, if possible. The lower the better, of course.
    
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post #7 of 16
Two 560ti's should consume around 300w by themselves. So a good 600W PSU should suffice. If you want to futureproof for upgrades maybe a 750W?

I own it and love it. Has worked great for me the last 2 years.
http://www.newegg.com/Product/Produc...82E16817139006

http://www.newegg.com/Product/Produc...82E16817139005
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post #8 of 16
Quote:
Originally Posted by The_0ctogon View Post
PSU recommendation for two GTX 560Tis? I want to try to keep the price under $130, if possible. The lower the better, of course.
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post #9 of 16
Thread Starter 
I forgot to mention that I would greatly prefer a modular PSU to help with cabling issues, as it is a mATX case that I'm going to be working with.

To me, this one looks to be the best combination of what I want/need and price. It even matches my orange/black color scheme
    
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post #10 of 16
The case factor is what leads me toward suggesting the 560ti's.

For raw performance at max OC's, 470's are solidly faster than 560ti's ... roughly 5-10% ... although it depends on your particular samples and how they OC. The more tessellation there is in the test, the more dominant the 470's are, as GF100/110 chips have quite a bit more tessellation power than GF104/114, due to 4 GPC's vs. 2.

My 470's with solid Copper TFII coolers will do around 845c/900m, and no 560ti's are even going to get within striking distance of my cards at these clocks. But those clocks require high voltage (1.1V) they get HOT if I push them that hard. With more reasonable clocks/volts (like 775/900@1.037), which runs a lot cooler, they are going to be about equal to a 560ti at around 925MHz.

I love my 470's, but I have a huge case and a lot of airflow, plus two full empty slots between the cards, and nearly top-of-the-line air coolers on them, so ... that's why. If you just wanna throw a couple reference cards in a small sized case with an average mobo that has only one slot between cards ... you'd be better off with the 560's.

The one concern I have in the longer term though is the vram factor. 1GB of vram capacity is rapidly falling behind the times, and is a little lacking IMHO considering the raw power of two GF114 cores like you're talking about doing ... Crysis 2 maxed out in DX11 w/texture pack is pushing over 1.3GB at 1080p IIRC ... which is definitely somethign to think about if you're looking at the long term. It might be worth looking into 560ti 2GB or HD6950 2GB if you want your cards to last for awhile.
    
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