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How to overclock a 7850 past 1050MHz?

It's perfectly stable. I just run it lower so I can use less volts and therefore cooler/quieter.

It'll do 1290 all day at 1.225V, but I can run 1225 @ 1.18V, which is a considerable voltage reduction and I honestly don't notice the 65MHz less.

1290 is my benchmark speed, 1225 is my day to day gaming speed.
 
HeX said:
It's perfectly stable. I just run it lower so I can use less volts and therefore cooler/quieter.

It'll do 1290 all day at 1.225V, but I can run 1225 @ 1.18V, which is a considerable voltage reduction and I honestly don't notice the 65MHz less.

1290 is my benchmark speed, 1225 is my day to day gaming speed.
Click to expand...
Okay, got ya! I'm gonna leave the clocks for my 7850 at 1240/5800 at 1.226v with the fan running at 100% along with my other five 120mm fans ( 3 for case and 2 for cpu heatsink in push pull config ) running at 100%. I game with a headset, noise isn't an issue. :D

When I do take my headset off, lol, my PC sounds like I'm in the middle of a Boeing testing facility.
 
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Protomize said:
Have you tried bumping the volts up to 1.225?
Click to expand...

I don't think i ever got that high. As i wrote earlier, going over 1.155, i think up to 1.175, made the Aero interface of Windows 7 here turn all red and blocky, so i never dared trying higher than 1.155 for long.

wazza300 said:
could be your gpu memory thats failing,leave it at stock and just up the core clock
Click to expand...

But i've never touched the mem clock.

Here's something i'm wondering after i've noticed two things:

1. The lowest speed of the memory clock raises when you raise the core clock. When for example underclocking the core, you can't go under a certain memory clock speed unless you also underclock the core by a lot. This id definitely bound to the core clock, but could also have something to do with the voltage. The card's BIOS may have rules for this.

2. Almost all overclocking results i've seen for this card have also had an increase in the memory clock (5800 seems very common for one).

Do these two facts perhaps mean that you must overclock the memory in order to get the core to as high as 1200? Afraid to try that when it's the card's bunging out over 1100 @ 1.175.
 
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Yesh :D Isac of 73% aswell, so ill leave it at that, just in case.
 
Sapphire with a 72.6% ASIC
1200 / 4800 Overclock with 1.225V Stable on FurMark & Bench 3dMark11 with a P6373 score

Can run 1100Mhz Core without touching the voltage which it defaults at 1.210V

Not bad.
 
With the 7870's getting a price drop, it's probably more worthwhile getting that card now if anyone is within the 78x budget.

Until the 7850's drop to around £175'ish for a non reference then the £200 price tag for them at the moment is too steep considering the 7870 is £220.
 
Okay so i just ran a test for my stock:

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This is the 7850 MSI Power Edition at 950 Mhz


This is at 1050 which apparently is max in my GPU Tweak

scaled.php


But anyways guys i could need some help overclocking haven't really overclocked my gpu before.

I'm sitting with 1050 core, 4800 Memory and stock voltage which i apparently cant change

Also when i do the Heaven test sometimes it seems a bit chunky, not as smooth as it could be...
 
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I don't think the 1.225 voltage was kind to my card. Now the amdkmdap driver is resetting in Skyrim every 15 minutes even with stock clocks.
 
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