[Tested] ASUS GTX 560 Ti DirectCU II GPU Overclocking Session





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2 – GTX 560 Ti Overclocking

ASUS GTX 560 Ti stressed by FurMark



Okay it’s time to OC our ASUS GTX 560 Ti DirectCU II TOP. Let’s see how the GF114 GPU is overclockable and how the DirectCU II cooler is efficient.

In the next lines, TPC stands for total power consumption of the testbed.

Testbed:
– CPU: Core i7 960 @ 3.2GHz
– RAM: 4GB DDR3 Corsair Dominator
– Motherboard: GIGABYTE X58-A UD5
– Windows 7 64-bit
– Graphics drivers: R266.44
– PSU: Corsair AX1200

For each settings I ran FurMark at least 5 minutes. If settings are a bit too high, the application crashes (***ERROR***) but not Windows. And if the settings are too high, the whole system freezes (***FREEZE***)…

Let’s go:

  • GPU core: 900MHz, Vcore: 1.025V, TPC: 351W, max GPU temp: 78°C – burn-in test: OK
  • GPU core: 940MHz, Vcore: 1.025V, TPC: 360W, max GPU temp: 80°C – burn-in test: OK
  • GPU core: 950MHz, Vcore: 1.025V, TPC: 362W, max GPU temp: 80°C – burn-in test: ***ERROR***



As you can see, with the last OC setting, the GTX 560 Ti does not pass the FurMark test. Let’s rise the Vcore:

  • GPU: 950MHz, Vcore: 1.050V, mem: 4200MHz, TPC: 371W, max GPU temp: 80°C – burn-in test: OK
  • GPU: 960MHz, Vcore: 1.050V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 960MHz, Vcore: 1.062V, mem: 4200MHz, TCP: 382W, max GPU temp: 83°C – burn-in test: OK
  • GPU: 971MHz, Vcore: 1.075V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 969MHz, Vcore: 1.062V, mem: 4200MHz, burn-in test: ***ERROR***
  • GPU: 969MHz, Vcore: 1.087V, mem: 4200MHz, TPC: 399W, max GPU temp: 86°C – burn-in test: OK
  • GPU: 980MHz, Vcore: 1.087V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 970MHz, Vcore: 1.112V, mem: 4200MHz, TPC: 413W, max GPU temp: 89°C – burn-in test: OK
  • GPU: 980MHz, Vcore: 1.112V, mem: 4200MHz- burn-in test: ***ERROR***
  • GPU: 990MHz, Vcore: 1.125V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 990MHz, Vcore: 1.137V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 984MHz, Vcore: 1.125V, mem: 4200MHz – burn-in test: ***ERROR***
  • GPU: 980MHz, Vcore: 1.150V, mem: 4200MHz, burn-in test: ***FREEZE***



The final stable OC setting that passes FurMark 1.9.0 burn-in test is:
GPU: 970MHz and Vcore: 1.112V

For this OC setting, the power consumption of the card alone is:
(413W-100W)*0.9 = 281W

where 100W is the power consumption of the testbed at idle and 0.9 the efficiency factor of the PSU (see this article, there is a graph of the AX1200 efficiency).

Do you remember the TDP of a reference GTX 560 Ti: 170W…

The DirectCU II cooler seems to be very efficient because under this high OC setting, the GPU temperature is reasonable: 89°C.

Maybe, looking at these values, you’re thinking there is a bug somewhere because on NVIDIA GTX 500 series, there is a power monitoring hardware that limits the power draw. On its GTX 560 Ti DC2 TOP, ASUS has not implemented the power limiter. That explains why we reach such a power consumption… And why the GTX 560 Ti DC2 TOP is nice for overclockers 😉

I validated this OC setting with 3DMark11 and Unigine Heaven.

Unigine Heaven 2.1 (D3D11, 1920×1080, 4X MSAA, tessellation: normal) scores:

39.3 FPS, Scores: 989 – ASUS GTX 560 Ti DCII TOP (core: 970MHz)
38.3 FPS, Scores: 966 – ASUS HD 6950 (core: 810MHz)
37.8 FPS, Scores: 951 – ASUS GTX 560 Ti DCII TOP (core: 900MHz)

3DMark11 Performance preset scores

P4782 – ASUS GTX 560 Ti DCII TOP (core: 970MHz)
P4627 – ASUS HD 6950 (core: 810MHz)
P4521 – ASUS GTX 560 Ti DCII TOP (core: 900MHz)

More scores can be found here: ASUS GeForce GTX 560 Ti DirectCU II TOP Direct3D performances.



FurMark is very hard with GPUs. But let’s see if we can find higher OC settings for the other applications that put different stress test on the GPU like 3DMark11 or games.

For 3DMark11, the max OC setting passed the test: {GPU: 1000MHz ; Vcore: 1.112V}

P4842 – ASUS GTX 560 Ti DCII TOP (core: 1000MHz)
P4627 – ASUS HD 6950 (core: 810MHz)

For Crysis (I used Crysis GPU benchmark, 1920×1080), same OC settings: {GPU: 1000MHz ; Vcore: 1.112V}

71.62 FPS – ASUS GTX 560 Ti DCII TOP (core: 1000MHz)
67.95 FPS – ASUS GTX 560 Ti DCII TOP (core: 900MHz)

More scores can be found here: ASUS GeForce GTX 560 Ti DirectCU II TOP Gaming performances.

With Unigine Heaven 2.1 the max stable OC setting I found is: {GPU: 990MHz ; Vcore: 1.150V}

39.9 FPS, Scores: 1005 – ASUS GTX 560 Ti DCII TOP (core: 990MHz)
39.4 FPS, Scores: 991 – EVGA GTX 480 (ref clocks)
38.3 FPS, Scores: 966 – ASUS HD 6950 (GPU: 810MHz)



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8 thoughts on “[Tested] ASUS GTX 560 Ti DirectCU II GPU Overclocking Session”

  1. stivan

    thx m8 ur test`s has saved me time alot ot time trying i have the same card sadly its not a 1000 monster but it is a beast 😛 so gona stay like this tell i get my self another for sli ^^

  2. Hilppari

    What Bios were you using for 560ti? Because my max Vcore is 1.087 only. And i’ve uptated the bios from asus website.

  3. Cobra

    Would you have remove smart doctor if OverClocking using using afterburner ?

  4. Ismail

    I got the same card but my over clock settings exceed a little more and stable =D
    i also do not cross 77 degrees in heaven and 3dmark 11.

    core voltage 1025
    core clock 1015
    shader clock 2030
    memory clock 2100

    graphics score is 5377 =]

    my rig

    i5 2500k – OC’D
    asus p8z68-v pro
    asus 560 ti – OC’D
    8gb ram (2x4g)
    500 & 300 GB hdd
    xfx 550 psu
    noctua nh d-14 cpu cooler
    azza hurrican 2000
    lg dvd drive

  5. Steffen Bo Christensen

    Heya, im kinda curious, what % RPM speed does the card run, with these OC approved Settings?

    I wanna try out this setting, but im uncertain on what the Coolers RPM speed should be to maintain stability. :)

  6. Burak

    @970 MHz Core
    @1940 MHz Shader
    @2250 MHz(4500 MHz in Asus Smart Doc.)Memory
    @1.062 mV—->Burn-in test:OK!

Comments are closed.