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Going from GTX 580 to GTX 660 Ti...?

post #1 of 20
Thread Starter 
I almost had a notion to sell a GTX 580 and try out the GTX 660Ti but after scouring the internet looking for answers, I can't see it.
the GTX 670 I do not feel like paying for and if I stay at 1080p I might be able to get away with the 660Ti.
I'm not really a Kepler fan but not going HD Radeon, this unit is really only gaming and video, no computing where Kepler fails.

I have an offer for my GTX 580 of $260 and the GTX 660 Ti is $295-$310 on sale and depending which model.

so it's not a clear choice.
but I wanna make a slight change to my unit and compare.
I got a strange feeling that waiting for the GTX 7 series or whatever might be wise unless the GTX 670 hits a sale.

hmm.
please advise.
post #2 of 20
I would stay with what you have as it's still a strong card.

Is it not currently performing well enough for the games you wish to play at preferable settings? If it is, i would hang on to it and brave out the upgrade bug!
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Animus
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post #3 of 20
You'd be better off looking for someone to trade directly with, instead of losing money and performance. But, really, the most performance from trading/selling your 580 would come from getting an AMD card.
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post #4 of 20
Quote:
Originally Posted by malmental View Post

I almost had a notion to sell a GTX 580 and try out the GTX 660Ti but after scouring the internet looking for answers, I can't see it.
the GTX 670 I do not feel like paying for and if I stay at 1080p I might be able to get away with the 660Ti.
I'm not really a Kepler fan but not going HD Radeon, this unit is really only gaming and video, no computing where Kepler fails.
I have an offer for my GTX 580 of $260 and the GTX 660 Ti is $295-$310 on sale and depending which model.
so it's not a clear choice.
but I wanna make a slight change to my unit and compare.
I got a strange feeling that waiting for the GTX 7 series or whatever might be wise unless the GTX 670 hits a sale.
hmm.
please advise.

I've got two 460s and while one gtx 660ti could replace them I dont think I'd be satisfied with just the 2GB of VRAM and the limited bandwidth for gamming at 1440p. I say just keep your 580 and keep on saving untill next gen I'm not to impressed with Nvidia this gen and I might just end up getting a Radeon HD 8970 at release or even waiting for a deal on the 7970s
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post #5 of 20
Honestly from 580 to 660ti i would not even spend 40$, you wont see any real difference.

A good deal currently is dual 7850 http://www.newegg.com/Product/Product.aspx?Item=N82E16814102999 for 400$.

If i were you i would save for the gtx 780 or simply the 8870 8850.
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post #6 of 20
Thread Starter 
is the 192-bit interface choking out the 660 Ti like everyone thought it might.?
post #7 of 20
Quote:
Originally Posted by malmental View Post

is the 192-bit interface choking out the 660 Ti like everyone thought it might.?

The impact of the smaller memory interface will only be seen primarily when you start playing in Surround resolutions. For single monitors, especially at 1080p resolution, the 660 Ti can still hang with the best of them, although it might not be a big upgrade from a GTX 580.

Taken from the [H]ardOCP comparison between a 660 Ti and a 670, which are differentiated by their memory bandwidth:
Quote:
Originally Posted by [H]ardOCP 
In the end this all reinforces our stance that memory bandwidth isn't everything, and people seeking out video cards for gaming should not focus so intently on the memory bus width and bandwidth specification for determining their video card for gaming. Other factors go into it, and only through actually gameplay will you know how these truly perform side-by-side. That is why we here at [H]ardOCP actually play games with these video cards and use that real-world gaming performance to determine which card your money is better spent on.

Benchmarks and the like cannot tell you this real-world information, and can be extremely misleading. Take for example a test that stresses memory bandwidth and fills it to the brim, sure, the 7950 would win that test, but that test doesn't translate to what we just found out in real-world gaming. Performances were close between these cards, and in some cases faster on the card with the lesser bus and bandwidth. So focus on what real-world gaming tells you.

Our testing today at super high AA settings has shown that the "bus limited" GeForce GTX 660 Ti does not crumble so easily. There were no instances where we ran into "VRAM wall"s that took gaming performance into single digits, this never happened even at high AA settings with Transparency AA.

What we did experience was a clocked matched GeForce GTX 660 Ti performing slower than the clock matched GTX 670 as would likely be expected, but probably not as unfavorably as we might have thought. NVIDIA had to scale something down in performance to make this video card sell at $100 less expensive than a GeForce GTX 670. Surprisingly NVIDIA did not scale down CUDA cores, or clock speeds, but rather used the same GTX 670 GPU and cut memory bandwidth down by 33%. Even though the memory bandwidth was cut down by 33% we are not seeing 33% slower performance clock-for-clock. Our tests revealed a much less of a performance difference than that, which is music to the budget oriented gamers’ ears.
Quote:
http://hardocp.com/article/2012/08/27/nvidia_geforce_gtx_660_ti_at_high_aa_settings_review/8

I do agree with others above though that your best bet would probably be to hold on to the GTX 580. The only reason I could see the switch to a 660 Ti being worthwhile is if you wanted to bring down the power usage of your computer. Otherwise, a real performance upgrade would only really become apparent when you look at the 670 and 680. redface.gif
     
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post #8 of 20
You'll only hit problems with the 660Ti if your vram usage goes above 1,5GB. because the other 512MB can only run @48GBps compared to 144GBps.
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post #9 of 20
At 1080p it would probably be almost a linear upgrade.
If you are running into performance issues just overclock it. If you haven't already.
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post #10 of 20
Quote:
Originally Posted by GForceXIII View Post

You'll only hit problems with the 660Ti if your vram usage goes above 1,5GB. because the other 512MB can only run @48GBps compared to 144GBps.

I assume you are quoting the Anandtech review of the 660 Ti, so from that same article, I would like to point out the context in which it was said:
Quote:
Originally Posted by Anandtech 
The best case scenario is always going to be that the entire 192bit bus is in use by interleaving a memory operation across all 3 controllers, giving the card 144GB/sec of memory bandwidth (192bit * 6GHz / 8). But that can only be done at up to 1.5GB of memory; the final 512MB of memory is attached to a single memory controller. This invokes the worst case scenario, where only 1 64-bit memory controller is in use and thereby reducing memory bandwidth to a much more modest 48GB/sec.

How NVIDIA spreads out memory accesses will have a great deal of impact on when we hit these scenarios. In the past we’ve tried to divine how NVIDIA is accomplishing this, but even with the compute capability of CUDA memory appears to be too far abstracted for us to test any specific theories. And because NVIDIA is continuing to label the internal details of their memory bus a competitive advantage, they’re unwilling to share the details of its operation with us. Thus we’re largely dealing with a black box here, one where poking and prodding doesn’t produce much in the way of meaningful results.
http://www.anandtech.com/show/6159/the-geforce-gtx-660-ti-review/2

So according to Anandtech, it sounds like drivers will play a great role in how games access the 660 Ti's 2GB of VRAM. However, the last bolded part is important as they are saying there isn't much in the way that they can surely verify the impact of the small memory bandwidth, to which, my reply would be to see the [H]ardOCP comparison I linked in the post above your's. wink.gif

EDIT: I just noticed you are a 660 Ti user yourself. Have you run into any issues when exceeding 1.5GB of VRAM usage?
Edited by covert ash - 10/8/12 at 4:20am
     
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