Evga 670ftw SLI to evga 980 ti sc+ ?

[Mithan]

I am really thinking of getting a evga 980 ti superclocked + acx 2, this will replace evga 670ftw sli.

Is it worth it?
I'd wait for a pascall but it's probably almost a year away.


This is coupled to a 2500k @ 4.2ghz. I game at 1200p.


Thoughts?

 

[Arachnotronic]

Meh, if you've got two 970s, you should hold off. You'll see much better performance in games that don't support SLI, but not sure if it's worth the hassle of selling your older cards, taking a loss on them, etc.

 

[Stg-Flame]

The title says 670s but your post says 970s. I just upgraded from SLi eVGA 670 FTW editions to a single 980 Ti and I've seen a massive improvement.

 

[tweakboy]

980 Ti will pown your dual . thx

 

[Mithan]

The title says 670s but your post says 970s. I just upgraded from SLi eVGA 670 FTW editions to a single 980 Ti and I've seen a massive improvement.

I meant 670's, it was a typo since corrected.


Really? That much?

 

[lehtv]

Let's do some math.

GTX 670 FTW and EVGA 980 SC are both about 10% factory overclocked, so we can just compared stock vs stock.

Stock 980 Ti = 89% (tpu, compared to MSI Gaming)
Stock GTX 670 = GTX 760 * 1.1 (tpu) = 38% * 1.1 = 42%

GTX 670 SLI Scaling is about +61% on your resolution, on average (tpu, 100%/62% = 1.612). In some cases, up to 90% (e.g. BF3). Let's be generous and say 80% SLI scaling.

Stock GTX 670 SLI = 42% * 1.8 = 75.6%.

Stock 980 Ti / Stock 670 SLI = 89% / 75.6% = 1.18 = +18% improved average framerate in games where SLI scales well. Where SLI does not scale well, you can expect perhaps 40-50% better framerates.

Obviously, with a single card you also get better frametimes and better framerate consistency. And performance can be massively better in games which readily use more than 2GB of VRAM, even if those games have good SLI scaling.

 

[Mithan]

Stock 980 Ti / Stock 670 SLI = 89% / 75.6% = 1.18 = +18% improved average framerate in games where SLI scales well. Where SLI does not scale well, you can expect perhaps 40-50% better framerates.

Obviously, with a single card you also get better frametimes and better framerate consistency. And performance can be massively better in games which readily use more than 2GB of VRAM, even if those games have good SLI scaling.

Thanks for the reply. So I figure we are probably looking at a 25-30% increase across the board (you were pretty conservative by the looks of it) and a 40-50% in poorly optimized SLI games, maybe more.

I am noticing that the 2gb limit is becoming an issue in games, GTA5, Dying Light, Battlefield 4, ACUnity, etc have all given me some minor (or major) grief here and there when playing them. I expect these will become worse as we move to Doom, Fallout 4 (with texture packs), etc, etc, though I doubt Fallout 4 will push the PC much to be honest.


Well, Pascal will come out between April to June of next year, if the earlier "Tap Out" rumors in June were true, and that card will no doubt cost the same as this card at release, and probably only give a 30% performance boost when all is said and done. I guess I can always buy that when it comes out and stick the 980 Ti in my HTPC (or sell it).


Thanks for your opinions.

 

[Stg-Flame]

Yea, I'm not able to pull out those types of numbers (and if I did they would all be nonsense), but I can tell you with my SLi 670s overclocked FTWs, I was able to max most games with very little frame rate drops, but the more recent games to be released were definitely dragging. Swapping from two cards down to one, I'm able to max every game thus far (I haven't tried Witcher 3 as I'm still finishing up Witcher 2 but I doubt I can max it at 1440p) and I haven't seen any frame rate drop at all. Metro Last Light is running at a constant 60FPS maxed (minus that silly SSAO) even in the outdoor firefights and while running around the dark tunnels.

If you don't want to wait for Pascal and can afford the 980 Ti, I would highly recommend you grab the card.

 

[neatfeatguy]

I moved from GTX 570s in SLI to a Zotac GTX 980Ti AMP! Omega Edition since I run games across 5760x1080. While my 570s could run games, the limiting 1.25GB in VRAM was the only thing really holding them back.

From a handful of games I benched at 5760x1080 on the 570s and the 980Ti, I get anywhere from 60 to 300% increase in performance.

I don't frequent the forums here much, but I did post my results in another forum if you're curious and wish to see them (http://www.techpowerup.com/forums/threads/gtx-570-sli-vs-gtx-980ti.214683/)

Personally, if you're playing above 1920x1080p, you should see a great improvement going to the GTX 980Ti. I grew impatient and didn't want to wait for Pascal. Clearly you're running cards that are roughly 25% faster than my 570s, so it may be an easier choice for you to stick with the 670s for another year or so....

 

[happy medium]

I would say 2 670's = ~ 2 gtx960's which = a gtx980 with 100% scaling. a gtx980ti is about 30% faster than a gtx980. So expect a 30% increase in all games and even more where scaling is lower than 100%. SO if your cards give you 80% scaling in a game expect a 50% increase with the gtx980ti with the same game.

In short, its a great upgrade. Should be 40 to 60% faster in all games and no sli driver headaches..

I don't think your cpu will be strong enough for Pascal, mabe if you rev it up to 4.6/4.7

 

[guskline]

I LOVE the EVGA GTX980TI SC. I had owned 2 EVGA GTX670 FTWs in SLI and they were good cards, slightly faster than a single GTX970. However, a GTX980TI is a BEAST!

 

[Stg-Flame]

I find it really interesting how many people were using dual eVGA 670 FTWs and upgraded to the 980 Ti SC.

 

[Mithan]

Let's do some math.

GTX 670 FTW and EVGA 980 SC are both about 10% factory overclocked, so we can just compared stock vs stock.

Stock 980 Ti = 89% (tpu, compared to MSI Gaming)
Stock GTX 670 = GTX 760 * 1.1 (tpu) = 38% * 1.1 = 42%

GTX 670 SLI Scaling is about +61% on your resolution, on average (tpu, 100%/62% = 1.612). In some cases, up to 90% (e.g. BF3). Let's be generous and say 80% SLI scaling.

Stock GTX 670 SLI = 42% * 1.8 = 75.6%.

Stock 980 Ti / Stock 670 SLI = 89% / 75.6% = 1.18 = +18% improved average framerate in games where SLI scales well. Where SLI does not scale well, you can expect perhaps 40-50% better framerates.

Obviously, with a single card you also get better frametimes and better framerate consistency. And performance can be massively better in games which readily use more than 2GB of VRAM, even if those games have good SLI scaling.

I would say 2 670's = ~ 2 gtx960's which = a gtx980 with 100% scaling. a gtx980ti is about 30% faster than a gtx980. So expect a 30% increase in all games and even more where scaling is lower than 100%. SO if your cards give you 80% scaling in a game expect a 50% increase with the gtx980ti with the same game.

In short, its a great upgrade. Should be 40 to 60% faster in all games and no sli driver headaches..

I don't think your cpu will be strong enough for Pascal, mabe if you rev it up to 4.6/4.7

I LOVE the EVGA GTX980TI SC. I had owned 2 EVGA GTX670 FTWs in SLI and they were good cards, slightly faster than a single GTX970. However, a GTX980TI is a BEAST!

Just to let you guys know, I upgraded: (See here)
http://forums.anandtech.com/showthread.php?t=2443660&highlight=


HUGE difference.