• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

How to overclock a 7850 past 1050MHz?

Cuchulainn said:
So I can do 1150/5800 but it needs 1.190v. And temps during the Heaven benchmark touch 73 which seems a bit too hot?
Click to expand...

Thats virtually the o/c limits I've got, the same near as damn it. I think theres a few ppl here that 1150 is their limit, seems like a bit of a wall, voltage after this has to be raised quite bit, for me anyway.
I'm waiting for my replacement cooler to turn up so I can get it installed and see what (if any, and probably nowt, just cooler) improvements there are. I wanna see if theres any heatsinks in the box for the VRMs, I've read somewhere that 7870 has 5 phase, whereas the 7850 has 4, so this might impact in o/c ability, ie: heat so cooling might help.
Anyway, I'll see what happens when the cooler is here. :)
 
pieman109 said:
I would assume the 2 x 6850 in Xfire would stomp all over the single 7850, especially if even mildly overclocked, but I would check it out first.
Click to expand...

Thanks

HeX said:
Two 6850's are faster than a single OC'd 7850 in some things, not in others, but they don't stomp all over it.

Here's my two 6850's:

http://3dmark.com/3dm11/2912248

and my OC'd 7850:

http://3dmark.com/3dm11/3124408


Compared:

Graphics Score
7379 - 6850's CF OC'd (850/1050)
7191 - 7850 OC'd (1290/1450)

GraphicsTest1
33.96 FPS - 6850's CF OC'd
28.98 FPS - 7850 OC'd

GraphicsTest2
35.31 FPS - 6850's CF OC'd
33.72 FPS - 7850 OC'd

GraphicsTest3
46.65 FPS - 6850's CF OC'd
45.1 FPS - 7850 OC'd

GraphicsTest4
21.99 FPS - 6850's CF OC'd
24.05 FPS - 7850 OC'd
Click to expand...

Cuchulainn said:
So I can do 1150/5800 but it needs 1.190v. And temps during the Heaven benchmark touch 73 which seems a bit too hot?
Click to expand...

Not much in it, which is pleasing.

It's not the speed of the 6850's that is an issue, it's the VRAM I believe, Ultra simply requires too much VRAM on certain games, the 7850 mitigates this issue. I'll sell my 6850's and get a 7850 (and CF them in the future).
 
That can't be running those volts at 53C... that's cooler than stock volts on my card... are you sure those volts are sticking? Might explain why you can't get over 1150 if they aren't.

At stock volts I get like 59C load in heaven. At 1.16V I get like 67C. At 1.225V I get like 72C.

Stock fan profile on the MSI.
 
majnu said:
The MSI is really light, not a reassuring feel.

Anyway what programmes do I need to run these benches so I can post my figures up?

Thanks
Click to expand...

Most ppl here are using the Heaven v.3 at the moment, you can get it here:

http://unigine.com/products/heaven/download/

have a look at the Unigines benching thread in the vidcard section and it shows the settings ppl are using. this is important as it ensures no one person's scores are artificially high by by running at easier settings.

You'll also want to get the Asus tweak tool to enable overclocking past 1050 on the core (CCC limits you to this as max allowable)

http://support.asus.com/download.aspx?p=9&m=GPU+Tweak&hashedid=n/a

As always, any o/clocking is up to the individual, card blows up, its down to the user.
 
pieman109 said:
I assume you've done the following:

Installed either 12.3 or 12.4 (I don't think it matters which one really) reboot.
installed Asus tweak 2.0.8.3. reboot
select "advance mode" by selecting the middle button of the three small vertically buttons placed at the bottom lefthand side of the tool window.
select "settings" from the four larger options above these three little buttons.
From the window that opens, select "tuning" from the five options running across the top of this pane.
Towards the bottom of the pane, there'll be an unticked option called "overclocking range enhancement", select this option by putting a tick in it's box,
While you're in there, towards the top of the pane you're in, theres atick option to enable "GPU voltage", put a tick in the box to enable this option.
Onve you've done all that, select apply.

the screen will flicker and go black for a few seconds, then appear normally.
Select "Tuning" from the top of the line of options running vertically on the lefthand side of the pane and ....voila, you should have the increased overclocking range available to you.

Hope this helps, I can't put anymore comprehensively:)
Click to expand...

Mine isn't overclocking to the potential of others, what is odd that my card name doesn't even appear in the asus tweek tool version ASUS GPU Tweak v2.0.83
Support GTX680. Is that the right file?

I uninstalled 12.3 and any CAP + ANy other NVIDIA related drivers and Rebooted.
Ran Drive Sweeper and Rebooted.
Installed 12.4 without the catalyst application suite and rebooted.
Installed GPU Tweek and rebooted.
Applied the settings in your post and I get this:

stock_gpuz.png


edit - the gpu is showing after a reboot (pic updated)
 
Last edited:
majnu said:
Mine isn't overclocking to the potential of others, what is odd that my card name doesn't even appear in the asus tweek tool version ASUS GPU Tweak v2.0.83
Support GTX680. Is that the right file?

I uninstalled 12.3 and any CAP + ANy other NVIDIA related drivers and Rebooted.
Ran Drive Sweeper and Rebooted.
Installed 12.4 without the catalyst application suite and rebooted.
Installed GPU Tweek and rebooted.
Applied the settings in your post and I get this:

stock_gpuz.png


That voltage looks rather high, did it set itself to that level without you touching? If so, just move any one of the sliders and the option to set "defaults" will/ should be highlighted towards the bottom of the tweak tool., just select default and the voltage/core clock "should" themselves to the correct levels.
edit - the gpu is showing after a reboot (pic updated)
Click to expand...
 
Indeed, it looks to have unlocked, but your default voltage is rather high. It should be around 1.08V ish by default.

glen8 said:
No nothing like that, not even any case fans near the card and the 300r case isn't the best for airflow :confused:
Click to expand...

Well 53C is ridiculously cool for those volts... as I say that's 6C cooler than my stock volts temp! =/
 
kitch9 said:
I've just ordered a VTX 7850, are these pulling decent numbers?
Click to expand...

TBH it seems to be entirely luck of the draw. Saying that however it seems pretty much everyone can get at least 1150 core from their 7850's, which is still a respectable 33% boost in performance for nothing!

The biggest challenge is getting ASUS Tweak to work properly :D We really need MSI and Sapphire to get their finger out and update their software so we have options.

Uninstalled Asus Tool; Rebooted; Installed it again and rebooted and now it is unlocked even though the Voltage is still high.
Click to expand...

Might be ASUS Tweak is just picking it up wrong, manually drop it down to say 1.15V and up the core to 1150.

Also when testing heaven use 4xAA, then you can compare easily.
 
Last edited:
You must log in or register to reply here.
Back
Top Bottom