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How do the 955, 965, 970 and 975 rank for OC Potential?

post #1 of 20
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I was wondering if there was any difference between the Phenom II X4 955, 965, 970 and 975 besides stock clock speed. I was under the impression that the 965s were slightly better than the 955s.
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post #2 of 20
Depends which versions of the said CPUs.
First batch of 955s (C2) would hit a ceiling at around 3.8GHz.

The later revision (C3) Would go to 4GHz.
Edited by contain - 2/18/11 at 3:58pm
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post #3 of 20
Quote:
Originally Posted by contain View Post
Depends which versions of the said CPUs.
First batch of 955s (C1 I believe they were called) would hit a ceiling at around 3.8GHz.

The later revision (C2 as I believe they were called) Would go to 4GHz.
That'd be C2 and C3 .

But just so long as its a C3 stepping chip, they're all the same other than the stock multiplier. So grab the 955 C3, and save some cash .
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post #4 of 20
Quote:
Originally Posted by pioneerisloud View Post
That'd be C2 and C3 .

But just so long as its a C3 stepping chip, they're all the same other than the stock multiplier. So grab the 955 C3, and save some cash .
Haha, it's been so long since I've looked at the X4s. I knew I was a little off somewhere.
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post #5 of 20
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post
That'd be C2 and C3 .

But just so long as its a C3 stepping chip, they're all the same other than the stock multiplier. So grab the 955 C3, and save some cash .
Thanks PIL - I was still wondering about that. What I am thinking is when the 965s came out they were guaranteed C3 stepping and the 955s on the shelves of most retailers were still C2. So the 965s were deemed better at them time, but that was months ago. That is why I keep thinking there is a difference between them. Thanks
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post #6 of 20
975>955>965

All of the others really haven't been proven yet.

For whatever reason, 955's generally OC better than 965s
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post #7 of 20
Quote:
For whatever reason, 955's generally OC better than 965s
That's not true. I consider them the same chip, just a higher stock frequency.

Also the 970/975 OC better, i forgot what they did but it's not just another deneb with a higher clock.
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post #8 of 20
They are the same chip, but somehow, they OC slightly better than 965s. That is why most of the AMD records are on 955s (currently it is on a 975, but before that it was all 955s)
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post #9 of 20
Many people claim binning of chips. Higher number (955-965, ect) the better the partof that wafer.

I can only speculate from what I have seen. My old 955 c3 maxes at 4ghz @1.502V
The new 965 is at 4.3ghz 24/7 using 1.418V.

Only change is the 965 is on water. The 955 was on a 212+ p/p

My $.02
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post #10 of 20
I don't know how each one compares to the other but i do know that the fastest amd chip is the 955 @ 7ghz + so if i were to buy one of those chips i would buy the 955
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