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[OFFICIAL] GTX 770 Owners Club - Page 570

post #5691 of 9139
Quote:
Originally Posted by jamarns View Post

I just got one today, I'll let you know later when I get home if it's got samsung chips. Are they good or bad?

Samsung is arguably the better of the three brands (samsung>hynix>elpida). However,
there was a shortage of samsung chips not too long ago
and asus started using elpida on their DCII series.
post #5692 of 9139
I don't think it matters with memory at this speed. You're only going to get a bit more regardless. Matters more on lower end products that have much lower memory frequencies and a lack of bandwidth. Pretty much every 770 will get 225-250 GB/s, which is plenty.
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post #5693 of 9139
Quote:
Originally Posted by 66racer View Post

I thought you said you were at 12xx mhz or so. 1346mhz and 1.212v is good biggrin.gif

Personally I like using msi afterburner or evga precision but both of your software reports 1346mhz. The top left number in the main gpu-z info screen is not accurate to actual boost. THat screen just reads the bios table for what boost "should" be which is clear by the live data logging programs you have running.

How about my memory clock? I can't get higher than 7090mhz, and thats like 900mhz less than most cards get.

And my biggest problem was that adding volts does not help at all. I get same clocks with default volts (1.200V). So anyone has had same problem?
post #5694 of 9139
Quote:
Originally Posted by Pale1 View Post

How about my memory clock? I can't get higher than 7090mhz, and thats like 900mhz less than most cards get.

And my biggest problem was that adding volts does not help at all. I get same clocks with default volts (1.200V). So anyone has had same problem?
Depends on the memory chips used in the card can determine how much they overclock and the temps too of the actually memory modules. Core clock gives way better performance then memory overclock. Something along the lines of +400 memory would equal to around +50 core. Memory overclock is great for the extra memory band with in situations such as higher resolution 1440p 1600p and 4k or multi monitor set up. Also the timings on the memory can allow overclocking higher. Examplemy Ti's run stock at 7 ghz I can oc them to 8ghz but the 780's have a lower memory clock and won't oc as high but they have tighter timings then me and score higher due to this reason even though mine can go way above a 780. Dont know if all that made sense like it did in my head but hopefully you see what I am saying. Also try flashing a custom bios if its available for your card makes it alot easier to control the oc and may allow your memory to go slightly higher

As far as voltage at 1.2 and 1.21 why you don't see a increase in clocks is because you have to factor in boost and possibly hitting tdp. Once again this is where a custom bios for your card can really help since you control the clocks with boost disabled so what you set it as is what you get.
Edited by doctakedooty - 3/17/14 at 5:08pm
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post #5695 of 9139
Quote:
Originally Posted by 7ranslucen7 View Post

Samsung is arguably the better of the three brands (samsung>hynix>elpida). However,
there was a shortage of samsung chips not too long ago
and asus started using elpida on their DCII series.

Without tearing your card apart; how can you tell which brand mem chips you have !?! -Davis
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post #5696 of 9139
I believe NV Inspector can show the memory type.
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post #5697 of 9139
The latest gpu-z reads the memory type.
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post #5698 of 9139
Quote:
Originally Posted by EVGA-JacobF View Post

I believe NV Inspector can show the memory type.
yes nvidia inspector will show it
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post #5699 of 9139
Quote:
Originally Posted by Pale1 View Post

How about my memory clock? I can't get higher than 7090mhz, and thats like 900mhz less than most cards get.

And my biggest problem was that adding volts does not help at all. I get same clocks with default volts (1.200V). So anyone has had same problem?

Regarding the volts. 12mv is such a small bump in voltage usually its just enough to stabilize a bleeding edge oc at 1.200

For instance my card stock 1.212 used to oc at 1359mhz (maybe 1372 forgot) but took 1.39v for 1467mhz...1.48 for 1515mhz.
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post #5700 of 9139
Thread Starter 
Quote:
Originally Posted by 66racer View Post

Quote:
Originally Posted by Pale1 View Post

How about my memory clock? I can't get higher than 7090mhz, and thats like 900mhz less than most cards get.

And my biggest problem was that adding volts does not help at all. I get same clocks with default volts (1.200V). So anyone has had same problem?

Regarding the volts. 12mv is such a small bump in voltage usually its just enough to stabilize a bleeding edge oc at 1.200

For instance my card stock 1.212 used to oc at 1359mhz (maybe 1372 forgot) but took 1.39v for 1467mhz...1.48 for 1515mhz.

Where you able to do a 3dmark11 run at 1515Mhz? drool.gif. I am hitting my 300% TDP limit at 1463Mhz 1.360mv with a 1050w PSU...
Edited by Yungbenny911 - 3/18/14 at 5:25pm
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