The Nvidia GTX 680 Thread

Maybe this should shed light on the matter

In terms of raw power, a single GK110 GPU is expected to have up to 4.50 TFLOPs single-precision compute performance. In comparison, AMD's Radeon HD 7970 flagship single-GPU has 3.79 TFLOPs, the GeForce GTX 680 (GK104) has 3.09 TFLOPs and the previous generation GeForce GTX 590 (2 x GF110) dual-GPU card has 2.49 TFLOPs.

That of course do not explain why in many areas the 7970 are below par compared to the 680. Maybe a question of optimization?

Info from GeForce Kepler GK110 basic specs leaked
 
Until the GK110 comes out, it's all just talk.

From what we see with the GTX 680, the performance is better than the 7970 (by how much depends on which review sites you visit).
 
I want :D.

Thanks Archer for all your awesome info as always and the other members too :).

So i guess time to pack away the console :D
 
but can it play bf3 ultra with eyefinty with aa :P

Here's your answer:

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HardOCP's Review goes more in-depth than the others, tests out triple-monitor standard configs.

Metro2033 is one game where 7970 shows strongly but even then it's behind by 5-7%.

As it happens, Metro isn't one for a consistent benchmark scenario. Even in normal gameplay the max framerate you'll see often changes through separate playthroughs and often level reloads (play, save, exit, enter and re-load). The way the 4A Games Engine works is very similar to the Crytek one - in order to keep the level and experience fresh, small things are randomly changed like light sources and other environmental effects. Also I guess there's a difference in the motherboards and processors used in the various systems set up in reviews. I notice a few that have higher Metro 2033 scores use SSDs, while ones more erratic like Tom's used a mechanical drive early on. Too many variables, not many answers.

Still an amazing game though, can't wait for the sequel.

But back to the GTX680; it rocks. Technically, and in Direct Compute capabilities Kepler and GCN stand as equals, though its as if AMD and Nvidia had a mind switch. GCN introduces an efficient design and new hardware that sorts through code dependencies and executes those first, while Kepler cuts out the hardware that did exactly that in Fermi and replaced it with something a bit more streamlined and less wasteful on power and heat generation.

That does bring Direct Compute performance down, but in most cases it doesn't matter. In one of the reviews I saw, a GTX680 (alone) beats the combination of an i7 2600k and a GTX580 to re-code a video from HD to SD video suitable for Youtube, even taking out Intel Quicksync in the process. Nvidia has got a winner here, and I know if I had the money, it'd be on buying a new Kepler card for my machine.

Until the GK110 comes out, it's all just talk.

From what we see with the GTX 680, the performance is better than the 7970 (by how much depends on which review sites you visit).

Actually, using GK104 we can easily see what GK110 is going to be like. Take the exact same design of GF110: triple the amount of CUDA cores, double the amount of SMX modules, double the Raster count, lower the TDP by 40watts, double the Load/Storage Units, Interpolation and Special Function SFUs and then add in double texture units and extra CUDA Floating-Point cores. I predict it'll result in a 25% increase over the GTX590.

Although here's where it gets interesting: with the GTX690, we may see that the card is held back by current-gen hardware. An i7 2600k isn't going to be enough for that beast - for that you'll need PCI-E 3.0, oodles of memory bandwidth and an X79 board and a 6-core Intel Ivy Bridge processor. Triple-monitor 1920x1200 displays will play very nicely, I think.

Also, don't forget FXAA! That in itself is a tremendous achievement.
 
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Anand is proper (its actually one of the sites I use for the charts), Hexus and Hot Hardware are not, clearly evident by the games they choose to use. I'm guessing since you doubt the 7.5% Techpowerup's results are incorrect?

And I didnt say you were skewed to Nvidia, I said the games those two sites used were skewed.

I don't doubt Techpowerup. I don't doubt any of the sites I'm reading. I don't happen to think any of them have a particular bias. It's just that Techpowerup is on the low end of the aggregate scores that I've seen so far.
 
I don't doubt Techpowerup. I don't doubt any of the sites I'm reading. I don't happen to think any of them have a particular bias. It's just that Techpowerup is on the low end of the aggregate scores that I've seen so far.

Which is exactly why I aggregate score from 3 sites, to try eliminate any biases, or offsets. (edit: I've got the final average for my charts...:p )

Anyhoo, SLI reviews starting to come in Linky
I'll let you draw you're own conclusions. I'm going to wait for 1 or 2 more SLI reviews before passing judgment. This review was all over the place :/
 
It looks like 7970's overclocking brings it much closer to 680, even when 680 is clocked. So if you're comfortable running at 1300mhz on your 7970 you'd be averaging right about the same performance.

I'll let you draw you're own conclusions. I'm going to wait for 1 or 2 more SLI reviews before passing judgment. This review was all over the place :/

Yea man it didn't make one bit of sense.
 
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It looks like 7970's overclocking brings it much closer to 680, even when 680 is clocked. So if you're comfortable running at 1300mhz on your 7970 you'd be averaging right about the same performance.

I think (bit of speculation here) that this has to do with the dynamic OC. You set it to run at (for example) 1106mhz, a 100mhz offset, but the drivers happily override that and give you anything from stock to 1206mhz. So given the results we are seeing, I'd say its not sitting at that 1106mhz level as often as you would like it to. The average is probably around 1075, and hence you do not see as big a gain as you would on the 7970 with the same percentage overclock. edit: its highly application dependant though, some apps do have huge gains, some do not. Likely part of the dynamic OC paramaters is power draw, which will vary wildly from game to game

I have read though that EVGA managed to bypass the hard cap on voltage and clocks with a modified bios (managed something ridiculous like 1900mhz GPU clock on LN2), but I'm not sure if this managed to override the dynamic overclocking
 
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I think (bit of speculation here) that this has to do with the dynamic OC. You set it to run at (for example) 1106mhz, a 100mhz offset, but the drivers happily override that and give you anything from stock to 1206mhz. So given the results we are seeing, I'd say its not sitting at that 1106mhz level as often as you would like it to. The average is probably around 1075, and hence you do not see as big a gain as you would on the 7970 with the same percentage overclock. edit: its highly application dependant though, some apps do have huge gains, some do not. Likely part of the dynamic OC paramaters is power draw, which will vary wildly from game to game

I have read though that EVGA managed to bypass the hard cap on voltage and clocks with a modified bios (managed something ridiculous like 1900mhz GPU clock on LN2), but I'm not sure if this managed to override the dynamic overclocking

Most of the reviews out there don't talk a lot about the dynamic overclocking. What you have to do with EVGA's Tuning software is raise the level of power the card can consume. While the card may overclock itself to keep application performance up, it does so within a specific power band (up to 1.175v for reference models). Should you have a better cooler on board, you can set the default in the Nvidia drivers to anything up to 135% from stock voltage.

If the app/game requires more performance, and its under the set power limit, it'll overclock itself to the maximum stable frequency required. (what that frequency is, is determined by the Nvidia drivers and voltage management chips on-board the card) If the app/game draws a lot of power from the card and pushes it to the maximum voltage before it can raise the clock speed, the card underclocks slightly and carries on as normal. I guess this is a better version than the previous method of shutting off the card if temps become too much, so its a welcome improvement. Pity it can't be turned off, yet.

As for the EVGA record 1842Mhz overclock, read about it here.
 
1080p, SLI 680 keeps the lead (no surprise there really). Pity they didnt do 1400p, or triple monitor setups, as (in my world anyway) thats what I'd expect you to be running if you can afford 2 top end GPUs :p

So now we wait for the GTX670, 660, and AMD price drops to make our lives more interesting :D
 
I'm rather gonna wait for the (roumored) GTX 690... :) The 680 isnt an improvement (if any) over my 590
 
Local pricing is going public, looks like R6000 is what you can expect to fork out (for now)
 
I looked this morning and landmark had it for R5500 I could have sworn! Now it's just under 6K :/
 
I looked this morning and landmark had it for R5500 I could have sworn! Now it's just under 6K :/

Probably had it priced at R5.5k (with their normal mark-up) and then realized that is not how you do business in Africa. :)

(Just trolling, they can ask whatever they want for it if they are making business)

I guess, I'll have to wait for prices to drop a bit.
 
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