7950 windforce 3x

[fatguy666]

Hey

Got on of these Gigabyte cards, relatively happy with it. Came with the FZ1 BIOS (GHz edition) but the stock voltage on that was 1.25 I think so I switched down to the F43 BIOS.

Currently running at 1100/1400, voltage is 1.175 for the core and 1.500 for the memory. Memory won't go up anymore so I'm guessing I need to up the voltage but vrm temps are already high as Gigabyte never bothered to put heatsinks on them.

My question is about after market heatsinks. Looking at something similar to these ones although they're out of stock.

http://www.overclockers.co.uk/showproduct.php?prodid=HS-038-AL

Would something like this be worth my time?

Want to push the card a bit more without adding water, no ready for that at all!

First post btw

 

[555BUK]

From personal experience with 6 or 7 7x00 cards (one of which approached record air clocks), memory sinks do absolutely nothing for GDDR5 overclocking. Waste your money on something else and don't worry about the low memory clock. 7900's are not memory bandwidth limited and it will be very difficult to tell 1500 vs 1700MHz apart anyway.