So best and worst GPU's to OC?

[LokiFire]

From experience... 5850 was dog crap would only do 20mhz more and no voltage control but a quiet cool running card it was, Powercolor PCS+ shit overclocker.

 

7770 1100mhz stock clock GHZ edition XFX Core, did 1200mhz on the core and again no voltage control, not really any gains from that 100mhz increase though.. or barely noticeable, decent overclocker, Died thanks to XFX's shitty design.

 

GTX 580, interesting card as i thought this thing would have problems straight looking at it's TDP and not so efficient design.

 

Now a 580 is usually stock 775mhz, this thing hit's 850 on stock voltage (1088mv), and 960mhz on 1135mv... the increase in performance is ridiculous, amazing overclocker.

 

 

[Samfisher]

GTX 970.

[App4that]

Best, 980ti. Literally plugged it in, sat back, grabbed a beverage, and it did the work.

 

Worst, 390. Just looking at Afterburner caused the VRMs to overheat.

[Enderman]

750ti and the 900 series are crazy overclockers

worst would be something like the 290x reference card lol

[TacoSenpai]

My experience with the MSi GTX 980 has been pretty decent

[xAcid9]

Clock wise, my 7950 is the best overclocker. 850mhz at stock and shoot up to 1180mhz overvolted. Performance scaling is like +25%-33% for like +38% overclocked.

 

Worst is this 290x, 1030mhz to 1150mhz though performance scaling is pretty good. The memory overclock like a champ though, 1250mhz stock to 1720mhz, performance scale quite nice in open world game when i overclock the memory.

 

Honorable mention, my 5 years old HD6770M, from 700mhz to 920mhz and +200mhz memoy clock in a HP Pavillion DV6 laptop.  

[LokiFire]

1 minute ago, xAcid9 said:

Clock wise, my 7950 is the best overclocker. 850mhz at stock and shoot up to 1180mhz overvolted. Performance scaling is like +25%-33% for like +38% overclocked.

 

Worst is this 290x, 1030mhz to 1150mhz though performance scaling is pretty good. The memory overclock like a champ though, 1250mhz stock to 1720mhz, performance scale quite nice in open world game when i overclock the memory.

 

Honorable mention, my 5 years old HD6770M, from 700mhz to 920mhz and +200mhz memoy clock in a HP Pavillion DV6 laptop.  

Fermi & GCN are massive gainers with overclocking, no idea about Kepler & Maxwell.

 

Though as i said i never noticed an increase with the 7770 but that card ran hot for a stock voltage card.. hit 80+c regularly stupid damn thing, hotter than my 580 lol.

[Ostwind]

I have an OEM GTX 645 that overclocks like mad, 400Mhz on the core and 1100Mhz on the memory and shows strong gains.

 

 

[LokiFire]

1 minute ago, Ostwind said:

I have an OEM GTX 645 that overclocks like mad, 400Mhz on the core and 1100Mhz on the memory and shows strong gains.

 

 

It's not great scaling but that is a moot point, 400mhz+ OC is RIDONIDICKULOUS

[harrynowl]

Terascale VLIW 55nm RV770 PRO 4850: 625 -> 776 (hardware voltmod, air) 1.26v

Terascale2 VLIW5 40nm RV870 PRO  5850 #1: 725 -> 990 (air) 1.24v

Terascale2 VLIW5 40nm RV870 PRO  5850 #2: 725 -> 835 (lol) 1.26v

Terascale2 VLIW5 40nm RV870 PRO  5850 #3: 725 -> 1010 (air) 1.118v

Terascale2 VLIW5 40nm RV870 PRO  5850 #4: 725 -> 1150+ (hardware voltmod, water) 1.35v

Terascale3 VLIW4 40nm Cayman PRO 6950: 800 -> 990 (air) 1.3v

Terascale3 VLIW4 40nm Cayman XT 6970 (unlocked): 800 -> 960 (air) 1.3v

GCN 1.0 28nm Tahiti PRO 7950: 960 -> 1230 (air) 1.3v

GCN 1.1 28nm Hawaii XT 290X: TBA

 

G70 110nm 7800GT: 525 -> 606 (air) 1.4v

G92 65nm 8800GT #1: 600 -> 740 (air) 1.15v

G92 65nm 8800GT #2: 600 -> 780 (need voltmod, air) 1.15v

G94a 65nm 9600GT #1: 600 -> 715 (lol) 1.15v

G94b 55nm 9600GT #2: 600 -> 775 (air) 1.15v

GT200 55nm 295 (single pcb): 576 -> 706 (air, hot) 1.05v

GF100 40nm 480: 625 -> 900 (water) 1.21v

GF114 40nm 560ti: 950 -> 1110 (water) 1.15v

GF110 40nm 580 #1: 852 -> 940 (._.) 1.21v

GF110 40nm 580 #2: 777 -> 1010 (water) 1.21v

GK106 28nm 660: 992 -> 1213 (memory fail, air) 1.2v

GM204 28nm 970 #1: 1213 -> 1477mhz (air) 1.08v

GM204 28nm 970 #2: TBA

 

Maxwell tends not to scale with volts and doesn't have a linear gain from my testing. Kepler does.

[LokiFire]

3 minutes ago, harrynowl said:

5850 #1: 725 -> 990 (water)

5850 #2: 725 -> 835 (lol)

5850 #3: 725 -> 1010 (air)

5850 #4: 725 -> 1150+ (hardware voltmod, water)

4850: 625 -> 776 (hardware voltmod, air)

6950: 800 -> 990 (air)

6970 (unlocked): 800 -> 960 (air)

7950: 960 -> 1230 (air)

290X: TBA

 

7800GT: 525 -> 606 (air)

8800GT #1: 600 -> 740 (air)

8800GT #2: 600 -> 780 (need voltmod, air)

9600GT #1: 600 -> 715 (lol)

9600GT #2: 600 -> 775 (air)

295 (single pcb): 576 -> 706 (air, hot)

480: 625 -> 900 (water)

580 #1: 852 -> 940 (._.)

580 #2: 777 -> 1010 (water)

660: 992 -> 1213 (memory fail, air)

970 #1: 1213 -> 1477mhz (air)

970 #2: TBA

 

Maxwell tends not to scale with volts and doesn't have a linear gain from my testing. Kepler does.

So a fairly decent ride then.

[harrynowl]

1 minute ago, LokiFire said:

So a fairly decent ride then.

Some faster gpus soon.. 290x lightning and the pathetic 970 strix  the pcb is like 60% empty.

 

[crystal6tak]

Few of the best, low end mobile chips. Those chips (ex: 650M) are normally underclocked extremely low as a base clock. With proper cooling and perhaps modified gpu BIOS to unlock voltage, you can get quite insane overclock. (although it's kind of cheating, cause base clock is basically underclocked)

[harrynowl]

1 minute ago, crystal6tak said:

Few of the best, low end mobile chips. Those chips (ex: 650M) are normally underclocked extremely low as a base clock. With proper cooling and perhaps modified gpu BIOS to unlock voltage, you can get quite insane overclock. (although it's kind of cheating, cause base clock is basically underclocked)

A bit like the 645 above

[Qyoon]

My GTX960 Strix went up to 1485 Mhz gpu , 1900Mhz on ram

My GTX960 FTW went up to 1500Mhz Gpu / 2000Mhz on ram

My GTX980Ti SC+ went up to 1455 Mhz GPU / 1900Mhz on ram

 

imo GTX900 are beast.

[Kinda Bottlenecked]

4 hours ago, Samfisher said:

GTX 970.

 

True, true. The G1 especially. 

[LokiFire]

3 minutes ago, harrynowl said:

A bit like the 645 above

Oh i gained an extra 20mhz in GPU stability on my 580 simply by switching over to Windows 10 Pro... work that one out.

 

980mhz core... blazing fast for air lol.

[harrynowl]

Just now, LokiFire said:

Oh i gained an extra 20mhz in GPU stability on my 580 simply by switching over to Windows 10 Pro... work that one out.

 

980mhz core... blazing fast for air lol.

Yes, on air my 580 managed 988 so that's pretty quick

 

updated my post with architectures, codenames and process size. might need a spreadsheet at that point

[Lays]

4 hours ago, LokiFire said:

Fermi & GCN are massive gainers with overclocking, no idea about Kepler & Maxwell.

 

Though as i said i never noticed an increase with the 7770 but that card ran hot for a stock voltage card.. hit 80+c regularly stupid damn thing, hotter than my 580 lol.

Kepler and maxwell are as well, 20-30% isn't unheard of with good chips.

[Guest]

I had a MSI r7 370 for a few weeks that was absolute dog piss at OC'ing. 

 

I think I got like +65 on the core.. 

[Coaxialgamer]

5450 is the worst overclocker. 

[msvelev]

The r9 nano is BS to overclock. My 970 does amazing, and Maxwell cards in general are pretty awesome overclockers.

[MrFancypants04]

12 hours ago, xAcid9 said:

Clock wise, my 7950 is the best overclocker. 850mhz at stock and shoot up to 1180mhz overvolted. Performance scaling is like +25%-33% for like +38% overclocked.

 

Worst is this 290x, 1030mhz to 1150mhz though performance scaling is pretty good. The memory overclock like a champ though, 1250mhz stock to 1720mhz, performance scale quite nice in open world game when i overclock the memory.

 

Honorable mention, my 5 years old HD6770M, from 700mhz to 920mhz and +200mhz memoy clock in a HP Pavillion DV6 laptop.  

The 7850 is the best overclocker I've ever had I went from 800 to 1175 but there was a thread on Overclockers that guys were getting over 1300.

 

I've had my 280X at 1225 but I leave it at 1175 from a stock of 1000.

[afyeung]

High end AMD cards are just crap now a days for getting decent overclocks. The last good AMD clocker was the 290x which went HAM as long as you had good cooling. Now you'd be lucky to even squeeze out 80mhz. sorta pathetic 

[FruitBasketSilex]

14 hours ago, App4that said:

390. Just looking at Afterburner caused the VRMs to overheat.

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