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3-SLI BFG GTX 275s OC vs GTX 580

post #1 of 6
Thread Starter 
I'm debating on getting a new GPU and I've seen plenty of posts on different cards versus the 580. I want to be able to have the same performance I have right now with 3 GTX 275s but with Directx 11 compatibility. Plus these GTX 275s run hot as hell on some games with just the factory OC.

I've been looking at this card:

http://www.zotacusa.com/zotac-amp2-g...50104-10p.html

Do you think it is a good replacement for the 3? I've seen plenty of benchmarks that say that the 580 is much faster than the 275 in Triple SLI but I'd like to get your opinions as your opinions as gamers/overclockers/consumers have much more weight as far as i'm concerned. Is that GPU a good replacement? Zotac i've never used, ever. I've used just about every manufacturer's cards or boards somewhere down the line but not these guys. What draws me to this GPU is the RAM and the cooler. Or should I just go with the time tested MSI Lightning and screw the 3 gigs of RAM? I know its debatable the purpose of having that much RAM (as I've read) but I'd like to have a single GPU that can do all that the 3 275s can do and more. I don't want to upgrade just for bells and whistles. I want it to be an UPgrade.

Thanks guys. Any advice on what to do here would be great...that's one thing this forum always has is great input on upgrades.
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post #2 of 6
Well I have a pair of zotac gtx 275s and Ive had nothing but trouble with them. I had EVGA cards before these, and now have dual EVGA 580s and gotta say EVGA is a much better organization.

The times I did have trouble with my zotac cards I could log onto there site/support maybe 50% of the time. Then when I did finally get in touch with them they did nothing at all for me.

This is just my personal experience.

I say go with an EVGA or ASUS brand. But yes the 580 is powerful.

Im getting 3x to 5x the performance going from dual GTX 275s to dual GTX 580s.
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post #3 of 6
Using guru3d's reviews of stock clock GTX285 3-way SLI (close to your OC'ed GTX275s) and of GTX580 to compare, the trio is faster at 1600x1200 (close to your current 1680x1050) and 1920x1200 but lags behind at 2560x1600 for memory hungry games (probably due to VRAM limit).

So, IMHO, going for a GTX580 at this stage will not bring framerate improvement to your current setup. You will get DX11 (which is not much relevant in my opinion) and better heat management.

One word on the VRAM issue: if you continue to use your sig rig's HP W2007 monitor at 20'' with 1680x1050 native resolution, 3GB is a waste and 1.5GB is enough.

Now I think we are coming closer to a real UPGRADE. I suggest the next UPGRADE for your gaming experience might better come from a larger size monitor with higher resolution rather than from the graphics card department.
To this end, consider at least a 24''-26'' monitor with 1080p resolution.
post #4 of 6
I agree with windfire. Your current monitor will not push one of your 275's, let alone three of them. Get a higher resolution monitor before you spend any money on new GPU's.
And only worry about the 3gb cards if your new monitor has a resolution above 1900X1200.
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post #5 of 6
If you're really worried about the Vram then you can get a MSI Lightning XE (Xtreme Edition) which has 3 GB of ram. Truth be told I read the review on it and it performs marginally worse than the normal Lightning due to higher latency Vram.

It only performed slightly better than the standard Lightning at 2560*1600 resoloution and with max AA on only two cases, Shogun 2 and Metro 2033, where it was a mere 2 fps faster, although it did hold much higher min FPS.

As the other guys have said, 3 gig version is a waste with your current monitor.

Here's the review:

http://www.guru3d.com/news/msi-gefor...dition-review/
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post #6 of 6
Thread Starter 
That was my plan as when I finally decided and went to a new card I was going to get a new monitor with HDMI & 1080p to get the most of it. This monitor is old and I'd like a new one. I've been looking at this one for a few weeks now: HP Compaq LA2405wg 24" but now I'm debating on going to LED though the prices are going to kill me at this point. I have a 42 inch LED for my Home Theatre and it was a great purchase over the 40 inch Plasma that I had before. But monitor debates are for another post.

Here's the main issue and the reason I posted, I didn't want to go crazy and post a novel of info before but I'll go in depth as you guys really are the best to bounce this off of:

i'm using my 3rd GTX 275 right now in another rig and the 2 GTX 275s run pretty good with new games, ie Shogun 2 & Crysis 2 run great with the 1680x1050 maxed out but I'm irked about being limited to Shader 4.0 as newer games come out that use Directx 11 i'm feeling limited. So, just thinking long term, I get the new monitor alone, run it at it's native 1080p resolution, i'm concerned at this point the GPUs even in dual SLI setup on a game like Shogun 2 using my current monitor they get around 80-90 degrees and that's with a fan/temp management profile that maxes out the fan speed via MSI Afterburner. With the 3, its much worse, my case ambient temp sky rockets, I'm pumping tons of cool air in and hot air out as I replaced all the stock coolermaster fans with high RPM ones from a server we were chucking at work. The GPU heat is to blame mainly on this mobo where the cards are literally on top of each other and no gap in between them. Take out Card #3 its much better and having just one card the system runs cool as Rico Suave and even when I overclock the other components like a mofo. So thats my main motivation; getting one card to replace the SLI solution and having something that'll work for a year or so down the road with the new monitor and whatever else I do to the rig. Plus having a card that is an improvement rather than just being new. The prices of GPUs now its a must that you are getting the most for your investment. Water Cooling solutions for all the 275s would put me close to the same price as just buying a new card.

So with a new monitor running at 1080, I want to go with a new discrete GPU to replace the 275s. If I bought the MSI Lightning with the 3 gigs will I be losing performance? I've seen Guru3d's benchmarks as was posted above with the dual 285s. And a single 580 blows them away in almost all benchmarks and with the 3 the result was mentioned/posted above. I usually compare the 295 as similar to the two 275s in those DX10 Benchmarks they do and just using Guru3ds benchmarks I'm better off with the single 580. I want to get away from having all those damn cards. ON top of it the BFG warranties aren't as great as I'd like them to be....if you know what I mean about BFG lol so I don't want to burn them out. And as I mentioned I can't see replacing the cooler to put them in water as the price of doing that is the same as just buying a new 580.

So the question goes to:

I buy the new 24 inch monitor with 1080p using the HDMI, Buy a 580 with the 3 gig or even 1.5. Am I going to get more, less, or the same FPS than I had with 3 GTX 275s? 2 GTX 275s? This is ignoring all the cooling issues and economics of it. I want to stay away from the 590 as that is WAY too steep in my book. There is another post that was posted after this where the OP is considering which 580 3gb to buy and many people are saying to wait till mid June as there will be a better Nvidia option. Should I be going ATI? What do you guys think? The reason I ask about the dual 275s is I'd like to just run the two if possible as the 3rd isn't doing much for me at this resolution. So I want a card that is better than the dual 275s (and even the third if possible) and will be ready to keep maxing everything out like before... when eventually DX11 becomes mainstream, i'd like to have it. which all they talk about at one of our larger clients offices that are a large name in the biz. Two 560 TIs? What would you guys do?

Sorry for the long post I just am unsure of how to approach this. I know there was one answer about the 3 Cards above using benchmarks but considering my whole post here, should I switch I go for it? Usually I can just grab the card and if it sucks or doesn't live up to expectations I take it back but I can't get the 580s locally anymore so I want to make the right decision.
Edited by dvanderslice - 5/31/11 at 9:31am
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