Crazy good overclocking HD 7970

[El_Capitan]

So, I re-acquired another reference HD 7970 after I sold mine. I basically got another HD 7970 with a full cover waterblock for the same price of one without a full cover waterblock... and it's a better overclocker!

 

Graphics: Gigabyte HD 7970 3GB with EK Nickel @ 1195/1635MHz @ 1.131V's 140.1 Push + Pull (7V) Max 45C | 1270/1635MHz @1.2V's 140.1 Push + Pull (7V) Max 51C | 1310/1635MHz @1.3V's 140.1 Push + Pull (7V) Max 51C

 

It seems that voltage is its limitation. I can go higher than 1310MHz Core Clock, but I start seeing tearing (like if at 1280MHz with 1.2V's). Still, at 1.2V's, which is a slight increase over the stock 1.131V's, 1270MHz Core Clock is a nice overclock, especially at 24/7.

Edited October 15, 2012 by El_Capitan

[Nyt]

Good clocks for those volts.

 

Cards really show their true potential under water...

For gaming, I can run 1300MHz and 1800MHz stable at 1.35V core and 1.7V mem.

For benching, I can manage 1325MHz Core and 1875MHz Mem at the same volts.

[El_Capitan]

Good clocks for those volts.

 

Cards really show their true potential under water...

For gaming, I can run 1300MHz and 1800MHz stable at 1.35V core and 1.7V mem.

For benching, I can manage 1325MHz Core and 1875MHz Mem at the same volts.

Why so much voltage and overclock on the memory?

[IVIYTH0S]

Darn I was hoping for a HD7970 2GHz edition appreciation thread

 

Sweet though!!

[Nyt]

Why so much voltage and overclock on the memory?

 

Because I can Still have to do some tests to see the levels in performance in games as I increase the overclock from stock to 1300MHz and 1800MHz to see what the gains are.