So best and worst GPU's to OC?

[Noirgheos]

Just got a 290X Tri-X. Got it to 1220MHz with +48mv. It's a monster.

[App4that]

1 hour ago, FruitBasketSilex said:

Then how about you not get your GPU out of the rubbish bin in AMDs factory?

When AMD calls their rubbish bin "for export" that's easier said than done

[FruitBasketSilex]

2 hours ago, App4that said:

When AMD calls their rubbish bin "for export" that's easier said than done

Sounds to me like you're  mixing up the shipping side of their warehouse with the garbage collection side. ^-^

Edited February 11, 2016 by FruitBasketSilex
^-^

[App4that]

36 minutes ago, FruitBasketSilex said:

Sounds to me like you're  mixing up the shipping side of their warehouse with the garbage collection side. ^-^

I was kidding, but in all seriousness the VRM's on the nitros are not cooled like they were on the Vapor-x 200 series cards. Has nothing to do with the lottery. If I had the time/money to. I'd pick up another nitro and mod the VRM's. See if it would overclock better. May have been a coincidence but as soon as the VRM temp spiked, I lost stability.

[FruitBasketSilex]

Just now, App4that said:

I was kidding, but in all seriousness the VRM's on the nitros are not cooled like they were on the Vapor-x 200 series cards. Has nothing to do with the lottery. If I had the time/money to. I'd pick up another nitro and mod the VRM's. See if it would overclock better. May have been a coincidence but as soon as the VRM temp spiked, I lost stability.

Water cool JUST the VRM. Gotta do it scientifically, eliminate the variable and observe what changes. ^-^

 

[App4that]

Just now, FruitBasketSilex said:

Water cool JUST the VRM. Gotta do it scientifically, eliminate the variable and observe what changes. ^-^

 

A case study isn't very scientific but my curiosity would love to see if it changed anything. Funny thing is at least for mine voltage didn't matter. Not like the 980ti where voltage does help stability. With the Nitro it overclocked the same with stock voltage and the slider maxed.

[Zodiark1593]

My laptop with a Radeon 5470 (a high clocked desktop 5450) came stock at 750 MHz. It is stable up to 875 MHz with the DDR3 memory going from 800 MHz to 1000. 900 MHz Core is stable for Furmark, but crashes in actual games. 

 

The EVGA GTX 960 SSC in my desktop seems to top out at 1500 MHz Core with 2000 MHz (Effective 8.0 GHz) VRAM with +45 mv. Hitting 1515 on my core begins producing occasional artifacts (perhaps one noticeable artifact every 20-30 secs) and one crash total in several hours of testing. 

 

With the stock 1440 MHz core clock though, I rarely bother with even bringing up Precision. 

[LokiFire]

Oh i did actually OC my laptop 4570m DDR2 from 550 to 800mhz and 50mhz more on memory.. DDR2 is hard to OC lol.

[MadPolygon]

Here is a german article about someone who was able to clock his 970 Strix to 1753 MHz on 1.2120V

http://www.pcgameshardware.de/Asus-GTX-970-Strix4G-Grafikkarte-259815/News/Ultra-OC-1750-MHz-1144717/

[HyperHertz]

Got my GTX970 top out at 1560mhz . I guess thats pretty good.

[Coaxialgamer]

Maxwell clocks up very well,  seems the big gcn cores don't,  however. 

[Coaxialgamer]

14 hours ago, Noirgheos said:

Just got a 290X Tri-X. Got it to 1220MHz with +48mv. It's a monster.

Seems you won the silicon lottery on that chip.  Mine can't even get to 1150 even with +100mv.

[Festive]

I see people saying they have overclocked laptop gpus and was wondering if anyone had any experience overclocking a GeForce 820m in something like an MSI Cx-61? Thanks in advance you hackers.

[Noirgheos]

2 hours ago, Coaxialgamer said:

Seems you won the silicon lottery on that chip.  Mine can't even get to 1150 even with +100mv.

Yep, I'm gonna see what I can do with +100mv pumping through it. 1300MHz would put me in the Fury X stock range around.

[Paralectic]

Depends on the cooling.

[Kinda Bottlenecked]

16 hours ago, Noirgheos said:

Just got a 290X Tri-X. Got it to 1220MHz with +48mv. It's a monster.

 

wtf. Put it under water. 

[Noirgheos]

Just now, Pohernori said:

 

wtf. Put it under water. 

It doesn't go over 74C, while being quiet. Also, wouldn't I need a reservoir or something? Or would getting a Kraken G10 suffice? I'd like to see if I can hit 1300Mhz.

[LokiFire]

Just now, Noirgheos said:

It doesn't go over 74C, while being quiet. Also, wouldn't I need a reservoir or something? Or would getting a Kraken G10 suffice? I'd like to see if I can hit 1300Mhz.

My 580 will go nuts after exceeding 75c above 980mhz it's a thermal wall.

[Noirgheos]

Just now, LokiFire said:

My 580 will go nuts after exceeding 75c above 980mhz it's a thermal wall.

NVIDIA imposes limits on it. AMD says fuck it, its your card.

[LokiFire]

Just now, Noirgheos said:

NVIDIA imposes limits on it. AMD says fuck it, its your card.

Not on Fermi they don't, it's a physical architecture wall.

[Kinda Bottlenecked]

4 minutes ago, Noirgheos said:

It doesn't go over 74C, while being quiet. Also, wouldn't I need a reservoir or something? Or would getting a Kraken G10 suffice? I'd like to see if I can hit 1300Mhz.

 

Its more of the core & vrm cooling. I've browsed around Hawaii threads. Users mentioned, keeping vrm and core cool will keep your card stable above +200mv. 

[Noirgheos]

Just now, Pohernori said:

 

Its more of the core cooling. I've browsed around Hawaii threads. Users mentioned, keeping vrm and core cool will keep you card stable above +200mv. 

So... how would I go about water cooling it without doing a loop?

[LokiFire]

Just now, Noirgheos said:

So... how would I go about water cooling it without doing a loop?

Dedicated GPU loop.. not hard

[Noirgheos]

Just now, LokiFire said:

Dedicated GPU loop.. not hard

Does that involve a reservoir? If so, fuck that.

[Kinda Bottlenecked]

Just now, Noirgheos said:

So... how would I go about water cooling it without doing a loop?

 

I've thought about this before. But Ek predators + their pre-filled full cover blocks seems quite convenient.