NVIDIA GeForce GTX 680 - Post your default and manual overclocks

[Darren Hodgson]

Originally Posted by Xzibit

And one more question: how runs GTA 4 on your rig, Darren?

I can play it with everything maxed out (i.e. Draw/Detail/Traffic Distance at 100% and Shadows/Night Shadows on Very High) but it can dips to the low 30s fps on those settings. 40-50 fps is the average though. If I lower the Draw Distance then the game hovers between 50-60 fps and feels much smoother to play. And with the new v301.10 drivers, we can now force FXAA in the game and turn off the blur filter which makes for a far more attractive looking game.

[Xzibit]

Originally Posted by Darren Hodgson

I can play it with everything maxed out (i.e. Draw/Detail/Traffic Distance at 100% and Shadows/Night Shadows on Very High) but it can dips to the low 30s fps on those settings. 40-50 fps is the average though. If I lower the Draw Distance then the game hovers between 50-60 fps and feels much smoother to play. And with the new v301.10 drivers, we can now force FXAA in the game and turn off the blur filter which makes for a far more attractive looking game.

Thanks.

[Xzibit]

Guys I have another question:
Adaptive Vsync, this is forced Vsync which locks framerate to monitor framerate and the image is without tearing?

[Lavans]

AFAIK, adaptive vsync keeps vsync on when your FPS is at monitor refresh, but if it drops below, it disables vsync.

[Uncle Dude]

Originally Posted by Xzibit

Guys I have another question:
Adaptive Vsync, this is forced Vsync which locks framerate to monitor framerate and the image is without tearing?

Vsync is automatically turned on when you are producing more frames than your refresh rate can display. Below that it's turned off to reduce input lag and prevent the huge drops that can occur with vsync enabled, for a smoother experience. Of course, tearing may occur.

[Xzibit]

I asking because i don't need 1000 fps in some old games without own vsync(STALKER for example). I need just 60.
So it's posible to have 60 fps without tearing, right?
This?



But if i'll set it "On"
I'll get 60fps without tearing?

[Uncle Dude]

Sure, in-engine vsync or forced "on" through the control panel will result in no screen tearing. Vsync off or set to adaptive could result in tearing.

[Xzibit]

Originally Posted by Uncle Dude

Sure, in-engine vsync or forced "on" through the control panel will result in no screen tearing.

+
And will limit FPS, right? To 60 for example.
BTW, thanks for the info

[Uncle Dude]

Yup, fps will not go above 60.

[Xzibit]

Originally Posted by Uncle Dude

Yup, fps will not go above 60.

Thanks

[Darren Hodgson]

There's a good overclocking feature here for anyone interested: http://www.hardocp.com/article/2012/...locking_review

[OneEyedBob]

Originally Posted by Darren Hodgson

There's a good overclocking feature here for anyone interested: http://www.hardocp.com/article/2012/...locking_review

On the face of it yes, but they have made some rather large errors, which is a shame as they obviously put some effort into it.

They have completely missed the thermal throttling feature where clock speeds and voltage will automatically throttle in increments above 70 degrees. They also believe they are over-volting the card when they aren't, but have reinforced their belief in this by attempting to over-volt at the same time as increasing fan speed, as a result their temps have dropped, thermal throttling has lifted and clockspeeds and voltage have risen as a result. They are reporting this as a success for over-volting, it isn't, this is a success for managing your temps.

They have also confused the power target with TDP, as seems to be quite common. The TDP is 195w, but 100% Power Target is typical power draw which is 170W (a number set by Nvidia based upon typical power usage at stock settings), at 132% Power Target you are at 225w which is the limit for 2 x 6pin connectors and PCIe slot. To be at the TDP of the card you would need to be at 115% Power Target.

[Darren Hodgson]

That was very useful, OneEyedBob. I was aware of the 70 C "protection" feature but didn't realise that 100% Power was only 170 W TDP not 195 W TDP. It makes sense though since 132% x 170 W = 224.4 W and as you said 225 W is the maximum draw for PCI-E 2.0 + 2 x 6-pin connectors. The voltage thing was also handy to know. Thanks for that.

[L7R]

Originally Posted by OneEyedBob

On the face of it yes, but they have made some rather large errors, which is a shame as they obviously put some effort into it.

They have completely missed the thermal throttling feature where clock speeds and voltage will automatically throttle in increments above 70 degrees. They also believe they are over-volting the card when they aren't, but have reinforced their belief in this by attempting to over-volt at the same time as increasing fan speed, as a result their temps have dropped, thermal throttling has lifted and clockspeeds and voltage have risen as a result. They are reporting this as a success for over-volting, it isn't, this is a success for managing your temps.

They have also confused the power target with TDP, as seems to be quite common. The TDP is 195w, but 100% Power Target is typical power draw which is 170W (a number set by Nvidia based upon typical power usage at stock settings), at 132% Power Target you are at 225w which is the limit for 2 x 6pin connectors and PCIe slot. To be at the TDP of the card you would need to be at 115% Power Target.

Great info, thank you! Please, it would be nice if you can inform HARDOCP about this. They have comments open for their members, I'm not a member though.
http://hardforum.com/showthread.php?t=1684488

[OneEyedBob]

Originally Posted by L7R

Great info, thank you! Please, it would be nice if you can inform HARDOCP about this. They have comments open for their members, I'm not a member though.
http://hardforum.com/showthread.php?t=1684488

I'm not a member either but I did email the guy that wrote it.

[gerardfraser]

One day down playing with card and this is what I am going to use

Core-1285
MEM-dont care can change at any time

Max temp I seen 64c on Witcher 2.

[Birdy62]

Originally Posted by Xzibit

I asking because i don't need 1000 fps in some old games without own vsync(STALKER for example). I need just 60.

Well, if you are talking about Stalker SOC, you wont have 1000 fps if you turn on the AA (8xCSAA + 2x supersampling- the only way to have a good AA in the game) even with a 680. 50 fps is the best i have in some areas with these settings and an overclocked 680

[Birdy62]

i'am a little bit confused.
Is it better to use the frame rate limiter feature or the adaptative Vsynch one ?

[Lakigucci]

That really depends on what u want ur FPS to be.
Do u want it to be the same as ur monitor, say 60hz=60Fps?
or do u like ur fps to be higher than that, say 75, then u can use framerate limiter.

Adaptive Sync limits ur framerate to the rate of ur monitor where the limiter lets u decide urself what fps u want to sustain.

[applejack]

I've been messing around with my new Galaxy GTX680 (reference) for the last couple of days. I'm using a fan curve for a hot day.
when temp pass 70c - voltage drops to 1.162v. with this voltage I manage a stable 1202mhz core. one notch further (1215mhz) and it can crash Unigine Heaven 3 / BF3.
forcing max voltage (1.175v) via Precision X, I can set higher (stable) clocks, but temps can eventually pass 80c and this is where throttling begins (voltage stays at 1.175 in 3D).

So I have two options for stable GPU OC on a sunny day:
1. 1202mhz @ 1.162v, healthy temp, no "undesired" throttling.
2. Higher clocks @ 1.175v, higher temp/noise, potential throttling.

option 2 does work pretty well, gotta find me a sweet spot, but I've been thinking, when do I mostly need the extra FPS if not for those graphically intensive games, where GPU is squeezed to the max...
this is where temp may climb to low 80's - throttling would kick and push me down to option 1 clocks and below, missing the lower volt, temp and noise.

so yea, aftermarket coolers can easily solve throttling. I'm currently not at the point where voltage is the limiting factor, at least for a few cases tested.

* testing were done with +300mhz mem clock offset. It too goes higher but I didn't get to test 400-500 offset stability just yet.

[Zergle]

Is there some way we could change the temperature at which the card throttles? setting it to 85 or 90 degrees seems much more appropriate to me... 70 is too low.

Driver update? firmware/bios?

[WhiteLightning]

Originally Posted by Zergle

Is there some way we could change the temperature at which the card throttles? setting it to 85 or 90 degrees seems much more appropriate to me... 70 is too low.

Driver update? firmware/bios?

you can use nvidia inspector for that partly. with the framelimiter there you can set FPS or degrees. not sure how you would get rid of the throttle though.

[Shadowdane]

Originally Posted by WhiteLightning

you can use nvidia inspector for that partly. with the framelimiter there you can set FPS or degrees. not sure how you would get rid of the throttle though.

Yah the 70C limit is too low especially for SLI... My cards hit 70C pretty easily. I think I'm going to take off the coolers and put on better thermal paste.

I did this for my GTX460 previously and it dropped my temps almost 10C.

[Zergle]

I'm confused as to why my card isn't throttling? I it running at 1200mhz on 75 degrees full load.

[OneEyedBob]

Originally Posted by Zergle

I'm confused as to why my card isn't throttling? I it running at 1200mhz on 75 degrees full load.

I'll bet it is throttling as there is no way to disable it, how fast can it run under 70 degrees?