Graphic Card Overclock List and Discussion

[sharang.d]

^^ i think you need to crank up the gpu voltage to the maximum limit ( but this very risky IMO ) and your PSu is good enough to handle a ~4.5 Ghz OCed 2500k and a OCed HD7870.

Yeah that's why I don't wanaa go to 1300 VDDC
I'm still waiting for a damn multimeter/ammeter/wattmeter yet
UPS wala taking too long to come lol

@sharang.d
reduce core clock to 1200 and check by playing games more than a hour.

Yeah stable at 1200/1360 at 1218 VDDC now. How'd you get such high clocks? Are they 24 X 7 stable?

 

[IndianRambo]

when there is no need of heavy gpu task, it automatically reduce to 300/150 @0.8v even its at defalut freqency,so there is no point of 24/7. yes its stable. but i reduced to 1200/1450@1.2v to be safe.

 

[sharang.d]

when there is no need of heavy gpu task, it automatically reduce to 300/150 @0.8v even its at defalut freqency,so there is no point of 24/7. yes its stable. but i reduced to 1200/1450@1.2v to be safe.

I asked about 24/7 because I had oced to 1220/1370 and left PC on. Went out and came back after 2 hours and display was gone. Had to restart.
Wow man how come such a high Memory clock?

Also which software to use to view Current GPU Volts?

EDIT:

So the system crashed while playing Alan Wake.
I'm really fed up of this now.
Yesterday I ran stress tests and played BF3 for more than an hour and all was fine. Today this
I have a feeling that its some power issue. Some setting maybe.

 

[sumonpathak]

use power+1 in trixx

 

[IndianRambo]

@sharang.d. i use msi afterburner on screen display to monitor gpu volt,temperature,fan speed,core,memory and frame rate while playing games.. normal i use gpu-z sensors.

 

[sharang.d]

use power+1 in trixx

Already @ +20%

@sharang.d. i use msi afterburner on screen display to monitor gpu volt,temperature,fan speed,core,memory and frame rate while playing games.. normal i use gpu-z sensors.

Yeah forgot bout GPU-z. THanks!

Also it was apparently Alan Wake's fault.

Faulting application name: AlanWake.exe, version: 0.0.0.0, time stamp: 0x4f69e8f4
Faulting module name: d3d_sf_Win32.dll, version: 0.0.0.0, time stamp: 0x4f69e8ae
Exception code: 0xc0000005
Fault offset: 0x000068ce
Faulting process id: 0x4a4
Faulting application start time: 0x01cd803158116cf9
Faulting application path: F:\Games\Alan Wake\AlanWake.exe
Faulting module path: F:\Games\Alan Wake\d3d_sf_Win32.dll
Report Id: 37958989-ec25-11e1-851a-10bf487cd08d

Ran Unigine heaven benchmark 10 times. No probs.
1200/1360 @ 1.2V

@Mandar
Can u please try 3dm11 after unistalling VirtuMVP. I wana know how much difference it makes..
Thanks in advance

 

[sumonpathak]

^^i think dat run was without MVP

 

[mandarpalshikar]

^^ Althought MVP was not uninstalled, I had disabled it.... see the MVP icon in taskbar... its greyed out
Now I've completely uninstalled MVP to comply with HWBOT rules ... Score now is 8390 with Core at 1050 and memory at 1500. See the below link.

Entry @ HWBOT

Now guys... guide me how shall I crank up the voltage ? I'll be using Asus GPU Tweak to do it.

 

[sharang.d]

For topgear

GPU : AMD HD 7870 (Sapphire HD 7870)

GPU Stock Speed : 1000 Mhz
GPU Overclocked Speed : 1200 Mhz
GPU Core Volt ( set in OC app ): 1.2V [Stock : 1.118V]
Powertune : +20%

vRam Type : GDDR5
vRam Stock Speed : 1200 Mhz
vram OCed Speed : 1370 Mhz
vRam Volt : Stock

Cooler : Stock
Bios Version : Stock
Software Used for OC : Sapphire Trixx

Additional Notes if any :
techPowerUp GPU-Z Validation cxdy5
AMD Radeon HD 7870 video card benchmark result - Intel Core i5-2500K Processor,ASUSTeK COMPUTER INC. P8Z77-V PRO score: P7428 3DMarks

Screenshot:

Spoiler

*i.imgur.com/aljmW.jpg

Right click on image -> open in new tab
For better readability


I have a feeling I should lower memory clock by 60 and increase core clock. Memory clock doesn't do s*** lol

IMO always apply overclock after boot.

What do u mean?

 

[topgear]

^^ That means always apply OC manually after windows desktop loads - I sued to do the same ( apply Oc profile before gaming ) before starting my gaming session.

 

[sharang.d]

Since it's not BIOS over writing obviously overclock will be applied after the overclocking software starts(after desktop loads) right? Didn't get your point.

 

[topgear]

some OC apps applies OC as soon as the OC software loads ( even before the windows desktop like some AV aps ) and if the OC is unstable it would cause BSOD - so just to play safe it's better to manually load Oc profile before starting a game.

 

[sharang.d]

Okay that way..
Do you apply the OC profile only when you're about to play a game and keep the normal profile while browsing and stuff?
Like Browsing->Switch to OC profile->Play games->Switch to normal profile->repeat or do you keep the OC profile for the whole time that ur pC is on?
Also you dint comment on my entry!

 

[topgear]

^^ yep, like that but occasionally after playing games I just forget to switch back to the normal profile.

and about your OC - well you should not go over 1225mV ( you were getting 70c with 1250mv ) - see if applying 1225mv is stable enough for Oc or not or it let's you get a bit more higher clock speeds but if even at stock the card can give you 1150-1170 Mhz core colck speed and as for memory try pushing it to 1400-1425 and finally 1450 Mhz.

 

[sharang.d]

You didn't see the latest one? I have added the screenshot too. 1.2V

Spoiler

*i.imgur.com/aljmW.jpg

 

[IndianRambo]

^^now u got a sweet spot for ur card.

 

[mandarpalshikar]

Just tried another OC before coming to office today. I'm unable to get to 1100MHz on my 7950 with default volt. 1050MHz is running stable at the moment.
Will push it 1.2V and try going to 1100 tommorrow morning.

 

[sharang.d]

^^now u got a sweet spot for ur card.

Yes!
Gonna try to lower memory clock and see if I can boost the core clock further

Just tried another OC before coming to office today. I'm unable to get to 1100MHz on my 7950 with default volt. 1050MHz is running stable at the moment.
Will push it 1.2V and try going to 1100 tommorrow morning.

Try lowering memory clock

hurray! achieved 45% of overclock from stock(860).

Spoiler

GPU :AMD HD 7850
Manufacturer and Model Name : MSI R7850 PE

GPU Stock Speed :950 Mhz
GPU Overclocked Speed :1250 mhz
GPU Core Volt : 1.225v


vRam Type :GDDR5
vRam Stock Speed : 1200 Mhz
vram OCed Speed : 1450 Mhz
vRam Volt : Stock

Cooler : Stock
Bios Version : Stock
Software Used for OC :Msi AfterBurner

not interested to test it anymore.

*i.imgur.com/pzHev.jpg

What max temp did you get when you did this?

 

[IndianRambo]

What max temp did you get when you did this?

its under 60 degree.

 

[the_conqueror]

Finally reached 1050 Mhz stable core clock. Restored the memory clock to default 1200 Mhz since it doesn't give significant results.