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How to overclock a 7850 past 1050MHz?

tobsmonster2 said:
Cheers mate. I think it'd be good if everyone posted some benchmark results running at 1200MHz and above as this seems to be easily achievable on any 7850, and it would really show what this card at it's full potential is capable of. I'd get the ball rolling, but I haven't ordered mine yet :D.
Click to expand...

There's already loads of benchmarks in this thread and in the earlier 7800 thread.

http://forums.overclockers.co.uk/showthread.php?t=18384791&page=9

onwards.


I wouldn't say 1200MHz is a guarantee however. It seems pretty much all cards will do around 1150 at varying voltages without much problem (33% OC), going past that is luck of the draw. We've seen cards that'll go all the way up to the high 1200's, and other cards that refuse to budge from 1150.

As with all OC'ing its a gamble, but you can safely assume you'll get around 1150 with a fairly high level of confidence.

I would say however that the Sapphire and MSI cards do have far superior cooling to the VTX one, and as such if your card does require high volts to OC those would be the safer bet.
 
UPDATE:D:

still doesnt work :(

2.0.6.0 aint doing it either
Tried new things...vista compatibility modes,running as admin

dust in the wind...all they are is dust in the wind.
 
karl55 said:
Yeah i had it ticked, didnt change much, ill try 2.0.6 and report back




Dont know, everyone was saying they installed it and i thought it was needed.
Click to expand...

Who is everyone? I didn't install CAP because the card is not a X2 nor do I run crossfire. Hence the question have you got two of these cards? If not there is no need to install CAP. :)

There must be a driver issue someonewhere. Identify if you have any other tweaking tools installed from Control Panel and un-install them. If you are running a PhysX GPU remove it from the machine and un-install it's drivers too. A word of note, that the Asus GPU Tool should be installed last.
 
CAP's are fine to install on single GPU systems as well, they are basically the most up to date gaming profiles, these can benefit both single and multi gpu systems.
 
It's not a must have, just saying you can install them on a single card. Though you're right the majority of info they contain is to do with getting the most out of dual card setups, but those efficiency tweaks cans sometimes filter down into improved single card performance as well.
 
I'm thinking of getting the MSI TF3 version of this card... Most benches see it playing BF3 at just-about-ultra with great FPS.

And if in a year or two I need more power, getting a cheap one for CF will be simple!
 
first off my apologies...i just joined and seem to have to wait for an admin to approve messages and that takes about a half day, so i can't always edit my original posts.

for benchmarking purposes on BF3, i join a server with 0 people and preferably a graphic-intensive map like caspian border. i basically make two laps around the map and through the center and record the FPS min/max/avg with FRAPS to see my results. also my guy needs to lose a little weight; he seems to huff and puff a lot when carrying that machine gun. anyway, with 1090/5600 clocks and all ultra settings but AA deferred set to OFF, i get:

min: 38
avg: 52
max: 92

i do this without any other players because if you die and go to the "deploy" screen your FPS immediately drops to ~30 so you get no real sense of min FPS during gameplay.

i know there are other benchmarking utilities out there but for true multiplayer in BF3 i prefer this method.
 
I'm thinking of going for the MSI as well although the sapphire is a bit cheaper... anyone finding any problems with either of them to help sway me?

HeX it seems like you're having a great time with yours and I must say i do prefer the look of it

ahh decisions decisions
 
One answer for the vram clock question, i Look around and found following.

Hynix 2*Gbit GDDR5 boasts a 7*GHz clock speed. The newly developed GDDR5 is the fastest and highest density graphics memory available in the market. It operates at 7*GHz effective clock-speed and processes up to 28*GB/s with a 32-bit I/O[4]. 2*Gbit GDDR5 memory chips will enable graphics cards with 2*GiB or more of onboard memory with 224*GB/s or higher peak bandwidth.

So i think 7 GHz is max from the vendor for this Chip. But i wouldt go higher then 6000 MHz for 24/7 use. The Most 7850 cards have no cooleres on the gddr chips.

So i would say the Chips voltage is 1.35 and you cant change this. I think 6 GHz is ok.
 
petridish said:
I'm thinking of going for the MSI as well although the sapphire is a bit cheaper... anyone finding any problems with either of them to help sway me?

HeX it seems like you're having a great time with yours and I must say i do prefer the look of it

ahh decisions decisions
Click to expand...

I think you'll be happy with either a Sapphire or an MSI tbh, both are great cards and have excellent coolers so should give you a good shot at getting 1200MHz. :)
 
Another tip for my Card sapphire 7850 oc it doesnt matter if i have 6000 or 5000mhz on vram so it has no effect on how you overclock.

Main Thing for oc is GPU voltage and GPU clock.

But i would Start whith overclocking of 5600 MEM than if all Works go higher to 5,8 or 6GHZ
 
Rayden said:
One answer for the vram clock question, i Look around and found following.

Hynix 2*Gbit GDDR5 boasts a 7*GHz clock speed. The newly developed GDDR5 is the fastest and highest density graphics memory available in the market. It operates at 7*GHz effective clock-speed and processes up to 28*GB/s with a 32-bit I/O[4]. 2*Gbit GDDR5 memory chips will enable graphics cards with 2*GiB or more of onboard memory with 224*GB/s or higher peak bandwidth.

So i think 7 GHz is max from the vendor for this Chip. But i wouldt go higher then 6000 MHz for 24/7 use. The Most 7850 cards have no cooleres on the gddr chips.

So i would say the Chips voltage is 1.35 and you cant change this. I think 6 GHz is ok.
Click to expand...

You'd need to look at the chips on your card to confirm this. As the review samples all had 5GHz memory on them (clocked at 4.8).

Saying that however nearly everyone has been able to do 5.8GHz on their cards, personally I've not even bothered to try higher.
 
Can you Confirm that the MEM clock have no effect on GPU voltage? That Means when you make 6000mhz with 920gpu clock you can also do like 6000 MHz on 1280gpu? Terrible to Write englisch on a German cell phone
 
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