OC'ing GTX560Ti

[StrykY]

Hey guys,

Ive been playing bf3 at high settings and all around 40/70 fps.
Now i had my gtx560 Ti on stock so i decided to OC it to see if i can manage 60 fps stable. (its a long shot i know!)

Here is my system specs:
i5 2500K @4.5ghz
4GB Ram 1333mhz
GTX 560 Ti 1GB.
Spinpoint f3 1tb.
p67 C43a B3 msi mobo.

I currently have my gfx card stable OC'd to:

Core voltage : 1.112
Core Clock mhz : 1000 (1ghz)
Shader clock: 2000 (2ghz)
Memory clock : 2095.

So now i wonder if this is any good. Should i get higher or lower? is my voltage not to high, i know the max safe voltage is 1.125 but i still have my doubts if this is a good voltage to run for gaming etc.

I ran Kombustor and 3Dmark 11 to see if their is any problems and none occured. I got the following 3dmark 11 score :

Your HardwareDiagnosis Your ScoreTarget Score for
Overall Score P4788 P4600
Graphics Score P4593 P4400
Physics Score P6475 P6700
Combined Score P4469 P4400

It shows that my only score below what it should be is physics...is that normal? thnx for the help guys.

 

[Scougar]

My 560Ti is overclocked, and I run some ultra settings @ 1920*1200, FOV 90, and have VSync turned on for 60FPS solid. (was getting 60 to 90FPS in general without vsync).

Mine is running 1.1 Volts (Your's may take less!!), 951Mhz\Can't remember shader\2304Mhz (4600Mhz).

BF3 settings that matter, and some that may be personal preference.

1) Turn off Deferred AA entirely, and just used the Post Processing AA (FSAA)
2) If you can live without ambient occulsion then turn that off or run SSAO.

(With the ambient occulsion, take your time and decide if like it off, SSAO or HBAO. This lighting feature can change the way the game looks a fair bit).

 

[StrykY]

is it more usefull to up the memory clock then the core clock? for example 1000 core clock with 2095 memory clock is worse then 950 coreclock and 2300 memory clock?

 

[Phunky]

What are you using to overclock your cards?

 

[Relentless81]

1) Turn off Deferred AA entirely, and just used the Post Processing AA (FSAA)
2) If you can live without ambient occulsion then turn that off or run SSAO.

Whats the reason for turning off deferred AA will it make much of a difference visually, I'm currently running with it switched on with my 560 but wouldnt mind a few more FPS

 

[StrykY]

im using msi afterburner.
I can run much on ultra now , but when it gets to caspian border i just notice i run out of vram (1000+mb ) on my 1gb card. i cant handle caspian on some ultra settings ....atleast not with decent smoothness cuz i lagg a lot and have to turn down everything to high.

 

[bhavv]

Which GTX 560 ti is it?

My MSI's do 950 Mhz on stock volts (1000 mV), 1000 Mhz on 1100 mV, 900 Mhz undervolted to 950 mV.

I use the following 3 profiles:

950 mV, 900 Mhz Core Clock, 2200 Mhz Memory
1000 mV, 950 Mhz Core Clock, 2300 Mhz Memory
1087 mV, 1000 Mhz Core Clock, 2400 Mhz Memory.

I'm stressing them all again atm in Kombustor, they were all stable so I tried reducing the 1000 mhz voltage down to 1075 mV and my desktop crashed

Trying 1000 mhz @ 1087 mV now. And yes, this setting is stable

My GTX 560 tis are golden

Well, they wont go much higher, 1150 mV and 1025 Mhz = desktop crash.

 

[StrykY]

jezus that are way better clocks then i got! i got a standart EVGA 560ti....they need lots of voltage
mV = 1125 (going to see how lower mV goes now with kombustor
coreclock 950
shader 1900
memory = 2095.(if my voltage goes lower im gonna try and get this higher

 

[bhavv]

Not all cards will overclock on the memory so much.

MSI used higher rated GDDR5 chips on their GTX 560s, at least on the first batch that I got every single Twinfrozr II 560 ti was hitting a minimum of 950 Mhz core / 4600 Mhz memory, and most of them 1000 / 4800.

Plus they didnt overcharge for them, they cost me £203 each on launch which was great for such premium quality (No custom 6950s available back then, and the cheapest reference 6950 was £238).

I'll never buy another brand again.

 

[starkill3r]

Not all cards will overclock on the memory so much.

MSI used higher rated GDDR5 chips on their GTX 560s, at least on the first batch that I got every single Twinfrozr II 560 ti was hitting a minimum of 950 Mhz core / 4600 Mhz memory, and most of them 1000 / 4800.

Plus they didnt overcharge for them, they cost me £203 each on launch which was great for such premium quality (No custom 6950s available back then, and the cheapest 6950 was £238).

I'll never buy another brand again.

I can get 950mhz easily on stock voltages out of my Twin Frozrs, but 4000mhz on memory?!? stock is 1050mhz, you sure it should be pushed that much? after all there is no temp sensor on the memory and that usually fails first when overclocking.

I might overclock the memory a bit higher then if that's the case lol

 

[bhavv]

I can get 950mhz easily on stock voltages out of my Twin Frozrs, but 4000mhz on memory?!? stock is 1050mhz, you sure it should be pushed that much? after all there is no temp sensor on the memory and that usually fails first when overclocking.

I might overclock the memory a bit higher then if that's the case lol

Dont confuse base ram clock speed, double data speed, and quad data speed.

4800 GDDR5 = quad rate. In MSI afterburner it would show as double rate = 2400. Base ram clock speed = 1200 Mhz.

GDDR5 operates at the equivalent bandwidth of 4x the base ram speed.

You can look at your Vram modules, write down whatever is written on them, and google it to find its specification.

The stock speed of 1050 Mhz = 4200 Mhz GDDR5.

You can see here that all GTX 560s have at least 4000 Mhz GDDR5:

http://www.overclockers.co.uk/productlist.php?groupid=701&catid=1914&subid=1341

 

[starkill3r]

Ahh yes i see now, in MSI Afterburner the memory is at 2100mhz by default, Don't really need to overclock now I got the second card, were see what demanding games come out next year.

 

[bhavv]

My cards run on the first custom profile 24/7 - 900 / 2200 undervolted to 950 mV.

I only set them higher when benching.

The only thing I dont like is that they cant be undervolted anymore, or the fans set to less than 40% (even though they are silent up to around 75%).

 

[StrykY]

thanks for all the replies guys. Wish i bought one of those msi cards. Ahwell i think i have settled for now on the following config:

Core voltage : 1100
Core Clock : 950
Shaderclock: 1900
Memory clock: 2300

Is this decent ? and not dangerous to run it like this 24/7 ?? cuz its below the max safe voltage i would say yes. Temps are not reaching over 83 degrees.

 

[Scougar]

Whats the reason for turning off deferred AA will it make much of a difference visually, I'm currently running with it switched on with my 560 but wouldnt mind a few more FPS

Just look up FSAA, and this should tell you what post processing AA is, and why you can use it as a partial replacement for the deferred AA (Proper AA).

It is a lot less taxing than the normall AA, but won't look 'quite' as good to be honest, but should be good enough for the 560Ti to be honest in my opinion.

StrykY> Looks OK to be honest as long as the coolers reasonable. Try lowering the core voltage and see if it's still stable

 

[Phunky]

What are you using to cover clock your cards with? I can't seem to change volts with the EVGA tools.

 

[Phunky]

I'm running mine at

Core Clock : 960
Shaderclock: 1920
Memory clock: 2100

Any higher on the memory clock and it will die straight away...

 

[bhavv]

thanks for all the replies guys. Wish i bought one of those msi cards. Ahwell i think i have settled for now on the following config:

Core voltage : 1100
Core Clock : 950
Shaderclock: 1900
Memory clock: 2300

Is this decent ? and not dangerous to run it like this 24/7 ?? cuz its below the max safe voltage i would say yes. Temps are not reaching over 83 degrees.

Those settings are decent, and actually I dont think that the current MSI cards would be any better as its normally the earlier batches that manage the best OCs (Gigabyte also had a full line of 560 SOCs on launch with default clocks of 950-1000 Mhz).

Your memory clock is fine, it looks like you have the standard 4200 Mhz ram modules the cards are specified for. The modules that MSI used on my cards are 4400 Mhz rated ones, but this may no longer be the case with their current cards.

Any higher on the memory clock and it will die straight away...

That happens when you have a single bad chip (or more) which were only tested at stock speed and werent binned at all for overclocking. I had an X1900 xt ages ago that was like that, just an extra 10 Mhz on the ram clock would kill it.

 

[StrykY]

alrite bhavv thnx for all your help. time to launch bf3 and see how it preforms!

 

[StrykY]

it preforms lots smoother 60 fps stable everything on high... can turn some settings to ultra... but on caspian border i have to go back to high to get smoothness.