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GTX 560 448 cores - overclocking question

Last response: in Graphics & Displays
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February 19, 2012 7:14:57 PM

I have a Gygabyte GTX 560 ti 448 cores. The card came with its own overclocking software (EasyBoost). When I boot EasyBoost, I can see the following readings:
GPU: 723 MHz
Memory: 950 MHz
Shader: 1464 MHz

I was thinking about overclocking the card to bring it to the same clock speed as the EVGA model (factory-overclocked to 797, 3900 and 1594 respectively - I got these numbers from Newegg product page)
The reading for the memory, though look way off the chart (950 vs 3900 !!!) How is that possible?
What would you recommend? How much should I overclock my card? Should I overclock at all?

Any comment/suggestion is very much appreciated!
February 19, 2012 8:09:04 PM

You're right, core clock is 732. However, memory reads 950! I get the same reading with GPU-Z v0.5.9
How's that possible?
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February 19, 2012 8:20:07 PM

I'm running the lates version of GPU-Z (13 Feb 2012). I cannot find the drop down menu you're talking about...
When I go to the Sensors tab, though, if I set GPU memory clock to show me the max reading, it shows me 950MHz... What's going on?
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February 19, 2012 8:23:02 PM

I had a gigabyte once and noticed the same thing. I'm not sure if they are using a different measurement scale or what.

I bet there is an option to lock your clock speed slider to your shader memory so that they scale together. Thats what I do with EVGA's OC tool. aka, when you increase speed of your clock your memory raises itself accordingly.

I have been able to push mine up to 925mhz easily, but thats with voltage increases. You will definitely want to overclock yours. This card is made to push a decent OC. Combined with a modern 4 core processor a good overclock really makes a difference. I'm getting great FPS in bf3 at 1080 with just one of these cards.

Personally I think the gigabyte 448 is a great option...especially if you have a blue motherboard pcb to match. Enjoy!
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February 19, 2012 8:30:17 PM

There's two ways to express the memory clockspeed. The actual clock and the equivalent data rate. When the actual clock is 1 GHz the data rate is 4 times that (4 Gb/s). Marketing sometimes likes to use the data rate as "effective clockspeed". So instead of saying their card has memory clock of 1 GHz they say that it has 4Ghz clock speed.
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February 19, 2012 8:32:31 PM

So, should I get another OC software, instead of the one I'm using? Can anybody who knows my card give me some advice? I don't want to just fiddle with EasyBoost and hope I don't fry my card!
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February 19, 2012 9:01:53 PM

Will MSI Afterburner work correctly with a Gigabyte card?
Also, sorry malmental, I still cannot find the menu you refer to. At the top of GPU-Z I can only see 3 tabs: Graphics Card, Sensors and Validation...
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February 19, 2012 9:06:01 PM

Ah, that explains it... We were talking about two different programs...
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February 19, 2012 9:09:09 PM

I'm downloading CPU-Z now. I was using GPU-Z instead.
Anyway, I'm also downloading Afterburner. Will MSI Afterburner work correctly with my Gigabyte card?
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February 19, 2012 9:12:08 PM

I have EasyBoost. I have never tried EasyTune 6. EasyBoost gives me that strange memory reading (950MHz) and, like I said, I don't know how much I should overclock the three parameters.
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February 19, 2012 9:20:04 PM

Both MSI Afterburner and CPU-Z give me a reading of 1900 MHz for Memory clock.
In MSI Afterburner, Core and Shader clock are linked together, so when I increase Core clock, Shader increases automatically. Memory clock needs to be adjusted manually, though. Starting from a reading of 1900, how much should I bring it up, if I want to set Core to 797 or 800?
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February 19, 2012 9:34:08 PM

Quote:
Core Clock:
797MHz

Shader Clock:
1594MHz

Stream Processors:
448 Processor Cores

Effective Memory Clock:
3900MHz

is that what you want.?


Yes, those numbers are the number of the EVGA card. That is what I would like to achieve.
My problem is that the Effective Memory Clock of my card is 3800 MHz, but the reading I get for Memory Clock is 1900 (in Afterburner) and 950 (in EasyBoost).
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February 19, 2012 9:37:50 PM

MSI afterburner has a voltage control, but if possible I'd rather keep default voltage
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a b U Graphics card
a b K Overclocking
February 19, 2012 10:06:16 PM

Yes, In MSI afterburner you can profile your GPU fan speeds according to temps i.e .
you can increase fan speed from 30% to 40% at a certain temp and 40% to 50% at another temp......yada yada yada
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February 20, 2012 12:19:09 AM

So my question is: in order to overclock my card in Afterburner,
I set Core from 732 to 797
I set Shader from 1464 to 1594
I set Memory from 1900 to ????
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February 20, 2012 10:23:18 AM

running mine at 2150
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February 20, 2012 12:29:14 PM

Ok, I found the answer on MSI forum. It's like kettu said: 950*4 = 1900*2 = 3800, which is the reference value of my card. So the overclocking value I'm looking for in this case is 1950.
Now, I have one last question: when I overclocked with Afterburner last night, I left fan settings to "Auto" thinking that the card would take care of itself. Then I noticed that the temp would rise to 77°C pretty quickly. It looks a bit too high, right?
Is that normal? What should I do?
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February 20, 2012 1:23:58 PM

(sorry if I'm asking all these questions... I don't have a lot of experience!)
So,
1) After I overclock in Afterburner, I select Manual fan and set it to constant 60%? would that ruin the fan on the long run?
2) In Afterburner there's an option to apply overclocking automatically when I start up the system. Should I do that or should I manually apply overclocking only when I need it?
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February 20, 2012 8:07:42 PM

77 is a little hot, most people would not worry about damaging this card at that temperature. I realize its a different architecture, but consider the 400 series...those were hot...glowing hot. Mine peaks out at at about the same temperature your getting when its warm in the house. No problems running that quite regularly 2+ months now.

These cards are pretty quiet thou. If you need to set a 50-60% speed and your case is not open...you will barely notice it if at all.

you will be manually applying OC when you need it. Don't let gigabytes tools auto OC anything but your fan, and as stated before you may have to manual that too.

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!