I mine LTC on both sapphire and gigabyte (WF3) cards, and the gigabyte ones are infinitely better.
I get about 720khs per card (vs about 660 on the sapphires) with the following settings:
Core: 1045
Mem: 1500
Concurrency: 8192
Vectors: 1
GPU Threads: 2
Worksize: 256
Intensity: 13
I wish I had only bought the WF3 cards..
What card are those specs specifically referring to? I'm curious as to how you are getting 720khs out of a card on Intensity 13/TC 8192.
Side question, I have a Sapphire Vapor-X 7950 which I seem to peak at 630khs. Would a comparable Gigabyte 7950 be that much of an upgrade on performance?
What that guy posted is a 7970. This is a thread about 7970's after all, not 7950's.