OFFICIAL KEPLER "GTX680" Reviews

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felang

Senior member
Feb 17, 2007
594
1
81
Overclocking has always worked like that. That's why people turn up their fans to go for maximum clocks. This is nothing new.

Totally agree with you, but I think what he is referring to is that GPU BOOST seems to be directly correlated to temps, and that 70 degrees seems like the limit for the auto OC to kick in. So... maybe if you ramp up the fan, keeping temps under 70 degrees GPU BOOST would be able to reach a higher multi... just as if you were manually overclocking.
 

Subyman

Moderator <br> VC&G Forum
Mar 18, 2005
7,876
32
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Techpowerup shows the 680GTX still outperforming the 7970 when they are both OCed to the max:

 

Phynaz

Lifer
Mar 13, 2006
10,140
819
126
bwahaha we have to listen to it for 1 1/2 years because the slower card used 50 less watts, but now that AMD has the slower card that uses more power we can't talk about it because we'd be fanboys if we did? :thumbsup:

Didn't you just say a couple of days ago that power doesn't matter?

You seem to be making a big deal about something that doesn't matter ()
 

Rvenger

Elite Member <br> Super Moderator <br> Video Cards
Apr 6, 2004
6,283
5
81
I think this card will work out perfect for me because I normally don't overclock anyways. If it does then great.
 

blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
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Lepton87

Platinum Member
Jul 28, 2009
2,544
9
81
bwahaha we have to listen to it for 1 1/2 years because the slower card used 50 less watts, but now that AMD has the slower card that uses more power we can't talk about it because we'd be fanboys if we did? :thumbsup:


Yes you are a fanboy. Completely changing opinion because it's convenient for your beloved nvidia. That's a clear give-away for fanboyism. I find it ridiculous that so many people cheer for IT companies. Why do you care who made it? I don't, neither should anyone but stockholders. Too bad logic doesn't work on people. Seems like reality distortion field is finding new hosts.
 

-Slacker-

Golden Member
Feb 24, 2010
1,563
0
76

cusideabelincoln

Diamond Member
Aug 3, 2008
3,274
41
91
How does clock for clock matter again?

Nobody cares, just like nobody cares with cpu's.

The only time you do clock for clock is when you want to see the IPC improvements from one design to another, gpu's have totally different designs, so there is zero point in doing a clock for clock comparison.

Instead, let's do a watt vs watt comparison, now 220 TDP is going to require a ton of overclocking on the 680, but I'm sure someone will manage it. It should be interesting to see how superior Nvidia is in this area since it's the only thing people wanted to talk about with GF100. They never wanted to talk about how it was faster, producing 40+ percent overclocks, had GPGPU, nope, none of that mattered back then, so let's continue to ignore it or do we flip flop on forums?

At least the reviewers have stayed consistent, even [H] recommend the 680 over the 7970 and they reviewed a 7970 that did 1300MHz.

So now you want to talk about something that you didn't want to talk about before - performance per watt?

Also do you realize most people talk about performance per watt with respect of the top to bottom video card lineup? Top to bottom there was no doubt AMD had an advantage in performance per watt. Even right now they - the 7970 and 680 - are pretty close. The 680 is good and I'm glad Nvidia went in that direction. Now with competition on the market it should force AMD to make price cuts.



bwahaha we have to listen to it for 1 1/2 years because the slower card used 50 less watts, but now that AMD has the slower card that uses more power we can't talk about it because we'd be fanboys if we did? :thumbsup:

Before that the 5870 was using 50W less than the 470 and almost 100W less than the 480. This is where Fermi got it's horribly bad reputation. Fermi 2.0 improved the situation a bit and made the performance per watt respectable and acceptable. Now Kepler has completely rectified it and is on par with and in some circumstances better than AMD.
 
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Janooo

Golden Member
Aug 22, 2005
1,067
13
81
bwahaha we have to listen to it for 1 1/2 years because the slower card used 50 less watts, but now that AMD has the slower card that uses more power we can't talk about it because we'd be fanboys if we did? :thumbsup:
7970 is not slower card.
 

badb0y

Diamond Member
Feb 22, 2010
4,015
30
91
xbitlabs OC comparison:

http://www.xbitlabs.com/picture/?sr...dia-geforce-gtx-680/20_gtx68vshd797oc_big.png

Picture isn't so black and white when comparing max oc to max oc, with the 7970 doing as good or better in many cases. Still for new purchasers the 680 is the king...no question.. I hope there's a silver lining somewhere though because I just dropped ten hundy on 2 of these things.

Don't get me wrong the GTX 680 is a fantastic card and is undeniably a better buy then what AMD has out right now but I just wanted to point out that 15% is not max OC for most of the 7970s, maybe it was for TPUs card but on average most can OC ~20% or more.
 

-Slacker-

Golden Member
Feb 24, 2010
1,563
0
76
^The 7950 is faster than the 7970 ... hmm ... I must have missed that. I think there has been a lot of pressure on all the reviewers to get the benchmarks out in time, if you consider that they had to compete with slides form tomshardware leaked 2 days early ... we should cut them some slack
 

wlee15

Senior member
Jan 7, 2009
313
31
91
Hardware.fr review
http://www.hardware.fr/articles/857-1/nvidia-geforce-gtx-680-test.html

5.6% faster than 7970 at 1080, effectively tied at higher resolutions according to their suite of games. Also includes a HD 7970 OC to 1075/1650 while the GTX 680 is boosted to a maximum 1210mhz with 1600mhz memory. Note I believe that hardware.fr test their GPU in a computer case so the GPU boost may not be as high as other reviews who reviewed the GPU in the open.(of course it's also makes the review a lot more realistic)

I predict that we are going to see quite the war with OC cards.
 

blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
Don't get me wrong the GTX 680 is a fantastic card and is undeniably a better buy then what AMD has out right now but I just wanted to point out that 15% is not max OC for most of the 7970s, maybe it was for TPUs card but on average most can OC ~20% or more.

The part that concerns me the most is scaling. How much performance is gained per mhz while overclocked -- it appears that the 7970 wins in this area. The best 680 scaling i've seen is 15% additional performance with OC while the 7970 seemingly scales better. This can of course all be attributable to early drivers and beta overclocking software and/or BIOS hard coded limits. Time will tell.

Like I said though for a new buyer the 680 is a better buy for sure, even if it has less RAM. Hopefully AMD will lower prices accordingly
 

felang

Senior member
Feb 17, 2007
594
1
81
xbitlabs OC comparison:

http://www.xbitlabs.com/picture/?sr...dia-geforce-gtx-680/20_gtx68vshd797oc_big.png

Picture isn't so black and white when comparing max oc to max oc, with the 7970 doing as good or better in many cases. Still for new purchasers the 680 is the king...no question.. I hope there's a silver lining somewhere though because I just dropped ten hundy on 2 of these things.

Exactly, For those of use who haven´t bought a new card yet, GTX680 seems like a better buy (at current prices).

Although, I wouldn´t be regretting buying an HD7970 3 months ago because when overclocked things seem to practically even out performance wise.

Things would change if crossfire or SLI is being considered though, Because 7970´s extra memory bandwidth might come into play then... but that´s probably a very small percentage of actual gamers...

In my case, the 680´s lower power usage convinced me as I am planning to run it off my current power supply (Corsair 520HX), and don´t have much power to spare, also, I´m starting to play Arkham City and would like to try PHYSX, to see if it makes any difference.
 
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Janooo

Golden Member
Aug 22, 2005
1,067
13
81
^The 7950 is faster than the 7970 ... hmm ... I must have missed that. I think there has been a lot of pressure on all the reviewers to get the benchmarks out in time, if you consider that they had to compete with slides form tomshardware leaked 2 days early ... we should cut them some slack
Check the metrics of the chart.
 

MrK6

Diamond Member
Aug 9, 2004
4,458
4
81
I wish these reviews would all put a beefy (same %) overclock on the two cards and let them duke it out in their full selection of games, because it's hard to draw a conclusion when the two card's performance is all over the place form website to website. Who am I going to believe, when, for example, this happens:

Crysis2 1920x1200 or 1920x108 with AA

website/hd7970/gtx680

guru 3d 61/63

hexus 54/66.4

techreport 51/48

hardwarecanuks 69/76

computerbase 43/52

TPU 61/63.7

alienbabeltech 51/64




it's even worse with metro 2033. Both cards absolutely slaughter each other in this game depending on the review (and yes, the 7970 wins more than once, both cards do)
Working through the backlog and I just saw this, excellent post. Wow, those scores really are all over the place. It's to the point that you can gain more from a driver change or simple IQ change than from upgrading your hardware.
 

badb0y

Diamond Member
Feb 22, 2010
4,015
30
91
This is exciting they seem to be on par when overclocked It feels like the pre G80 days lol.
 

SlowSpyder

Lifer
Jan 12, 2005
17,305
1,001
126
Sure 925MHz against 1.05-1.1GHz. 680 is what 10% faster with 15% higher clocks?


But overall performance comes from a combination of things. Assuming an infinite amount of memory bandwidth and PCIE bandwidth, then performance comes down to how much work can be done per clock and how many clock cycles can be crammed into a given amount of time. The 680 is faster. Not hugely faster, but faster at the reference speeds.

Like I said earlier, I don't know what there is to argue about. A GPU comes out later than another and a near price point and is faster... I think we would expect that more often than not.
 
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