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Ghost girl
11-12-10, 12:17 AM
Anyone able to get their GTX580 to 900mhz+?

I'm having serious issues with it, even at 1.138v, I can't get 900mhz or higher stable. Maybe I just got a bad one.

Post your overclocking experiences.

ragejg
11-12-10, 01:23 AM
I'm workin' on ~ 928/4666. I think the 100% sweet spot is within 25 mhz of the core or the memory speed I'm at.

Ghost girl
11-13-10, 02:42 AM
I'm workin' on ~ 928/4666. I think the 100% sweet spot is within 25 mhz of the core or the memory speed I'm at.

I wish I could get that high, I can't even get 875mhz stable.

Luckily thanks to EVGA's lovely warranty, I can probably change that in the future.

red777star
11-13-10, 10:55 AM
One thing i never overclock is video card, but that's just me.

Slytat
11-13-10, 01:25 PM
Ditto, the performance gain is never worth it in my experience but to each their own :)

Maverick123w
11-13-10, 01:29 PM
Ditto, the performance gain is never worth it in my experience but to each their own :)

Some cards like the 460 and 470 have a huge amount of headroom so I think it depends on the card.

Redeemed
11-13-10, 01:31 PM
Some cards like the 460 and 470 have a huge amount of headroom so I think it depends on the card.

This. Both the 5850 and 6850 can come within reach of their bigger brothers simply from oc'ing. :)

Johnny C
11-14-10, 12:19 PM
This. Both the 5850 and 6850 can come within reach of their bigger brothers simply from oc'ing. :)

Default clocks on all the mid-high range cards seem to be low. The CCC limits you to 775-1100 with a 5850, which is ridiculously low and everyone knows it. Mine will do 850/1200 easy on stock volts and @ 5870 voltage will do 975/1250

ragejg
11-14-10, 12:23 PM
Stock speeds are for wussies. :p

I overclock my dishwasher.










(crazy)


BTW, stable at 1.138V, 929/4670. :D

I should downclock to 480 speeds and see how beneficial this speed is over that of a stock 480.

ragejg
11-14-10, 01:24 PM
+1
Overclocking a graphics card is useless, the gain is minimal.
It never makes the difference if a game is playable or not.

I really didn't think you would be the type to say something like that.

I have so many examples that contradict that statement, but I'll just use a few, using personal experience.



Overclocking a Geforce 6600 Non Ultra allows it to play Doom 3 @ 1280x1024 instead of 1024x768.
Overclocking a Geforce 7800 GS allows the user to enjoy 2xAA in UT3 as opposed to 0x.
Overclocking an HD 3850 gets rid of the too-low minimum framerates when things get really crazy in Lost Planet in DX 10.1 mode with fur on.
Overclocking an HD 4850 allows you to either turn 2xAA on or turn shadows up to medium @ 1280x720 in Bad Company 2 with all other options at their highest, @ 4x AF, DX10 mode, HBAO on.
Overclocking an HD 4870 allows for 4xAA, 16xAF in Bad Company 2.
Overclocking an HD 5830 allows you to move up a whole IQ setting in Metro 2033.
Overclocking the GTX 580 will most certainly allow me to use DOF with GPU physX on along with the Ultra High IQ setting in Metro 2033.



Overclocking is a lot of fun, it's a fun and sometimes competitive exercise, and yes, it definitely does make games playable when at stock settings they might not be.

Roadhog
11-14-10, 01:51 PM
is there really a need to post how much you hate overclocking in a thread for overclocking a gpu? Who cares, post your overclocked results or dont post at all.

AdamK47
11-14-10, 03:37 PM
The three GTX 580s I have overclock to 860/2080 with 1.100V. SLI seems to limit the overall overclock and I like to have them all running at the same speed. I run them at a safe 820/2060 1.05V for 24/7 use. The cards are much much quieter than the three GTX 480s I had before.

newparad1gm
11-14-10, 04:09 PM
Overclocking my GTX 480s from the stock to 800/2000 allows me to run 2XAA in 3D Vision Surround in Black Ops, when otherwise the framerate would be noticeably low. I can't wait to see what these GTX 580s are capable of when I get them.

adamlau
11-15-10, 01:02 AM
I posted a few Heaven 2.1 benchmarks under Linux x64 (http://www.overclock.net/nvidia/866761-gtx-580-sc-heaven-2-1-a.html) @ 850/1700/2100...
And one Lightsmark 2008 v2.0 benchmark under Linux x64 (http://www.overclock.net/nvidia/866854-gtx-580-sc-lightsmark-2008-v2.html) @ 850/1700/2100...

http://farm2.static.flickr.com/1026/5177027899_a2cbc88741_b.jpg

Slytat
11-15-10, 10:43 AM
I really didn't think you would be the type to say something like that.

I have so many examples that contradict that statement, but I'll just use a few, using personal experience.



Overclocking a Geforce 6600 Non Ultra allows it to play Doom 3 @ 1280x1024 instead of 1024x768.
Overclocking a Geforce 7800 GS allows the user to enjoy 2xAA in UT3 as opposed to 0x.
Overclocking an HD 3850 gets rid of the too-low minimum framerates when things get really crazy in Lost Planet in DX 10.1 mode with fur on.
Overclocking an HD 4850 allows you to either turn 2xAA on or turn shadows up to medium @ 1280x720 in Bad Company 2 with all other options at their highest, @ 4x AF, DX10 mode, HBAO on.
Overclocking an HD 4870 allows for 4xAA, 16xAF in Bad Company 2.
Overclocking an HD 5830 allows you to move up a whole IQ setting in Metro 2033.
Overclocking the GTX 580 will most certainly allow me to use DOF with GPU physX on along with the Ultra High IQ setting in Metro 2033.



Overclocking is a lot of fun, it's a fun and sometimes competitive exercise, and yes, it definitely does make games playable when at stock settings they might not be.

Even though I did qualify my previous statement, I'll just make my point again. It doesn't make a difference in my case and that's because I'm running SLI 580s (and 480s before that).

A lot of the things you posted are highly subjective IMHO because as you said, it's personal experience, which is exactly what I said in my first post, my experiences with overclocking video cards never yield dramatic results although, I haven't used one card since SLI was introduced so I rarely experience scenarios that require any overclocking.

I just wanted to be clear that I am not dissing overclocking video cards or those who choose to do it :)

Roadhog
11-15-10, 02:13 PM
In my opinion, if a game is borderline not playable and overclocking makes a difference, you'll most certainly run into a situation in that game when it's back to unplayable again. Those usually <10 FPS you gain with overclocking are not enough to make the difference.

10 fps is pretty much the difference between the 480 and 580. Why waste money to buy a 580 when you can just overclock the 480?

Roadhog
11-15-10, 04:32 PM
Usually it's even less difference when overclocking, 10 FPS is pretty rare.

With overclocking, there is always the risk of annoying problems if you go too far. You don't have those issues buying the faster card right away. Plus you can always overclock that card as well :p

Sorry what?

http://www.tweaktown.com/articles/3235/nvidia_geforce_gtx_480_overclocking_with_voltage_a djustment/index.html

Doesn't look like 10fps is pretty rare to me. You might want to call 30fps rare. :p

Why is your cpu overclocked? You might want to buy a 990x instead.

snowmanwithahat
11-15-10, 08:41 PM
Stock speeds are for wussies. :p

I overclock my dishwasher.










(crazy)


BTW, stable at 1.138V, 929/4670. :D

I should downclock to 480 speeds and see how beneficial this speed is over that of a stock 480.

That'd be awesome actually.... Could you do a "GTX 580 revisited" article directly comparing it to the performance of a 480, similar clocks, just to show the scaling of the extra SP cores

newparad1gm
11-15-10, 08:50 PM
I gotta say, I think its pretty funny that the day comes where my SLI'd high end GPUs run cooler than my CPU. I got my GTX 580s at 75% fan, and they are running at 30C, while my CPU is at 35C.

v3rninater
11-15-10, 09:54 PM
In order to overclock, do you have to disable the power limiter on the 580's? Also, is there a way to find out how many watts your system is using?

Ghost girl
11-16-10, 12:55 AM
In order to overclock, do you have to disable the power limiter on the 580's? Also, is there a way to find out how many watts your system is using?

The power limiter doesn't hinder overclocking. It also voids your warranty (Not that they can check.)

Regardless, I'd suggest against it.

Ghost girl
11-16-10, 01:28 AM
Misfire

adamlau
11-27-10, 07:08 PM
910/4200 stable @ 1.138v w/ idle temps @ 62C at an ambient of 65F...

http://farm6.static.flickr.com/5163/5213057694_997051b31c_b.jpg

Ghost girl
12-02-10, 06:29 AM
I've made a hilarious breakthrough.

Turns out that I was on stock voltage the whole time, this card actually overclocks like a monster. I'm at 950mhz stable at 1.3v. I certainly feel silly for messing up the voltage. Don't mind the voltage reading from nvidia inspector, it is incorrect.

If I had a bios mod and an aftermarket cooler, I bet I could hit 1ghz. I'm considering picking up either a Thermalright Spitfire, an Arctic Cooling Accelero Extreme Pro, or an Aquagrafx full copper waterblock.

http://boonce.org/up/housefires.jpg