Sapphire's response to ASIC quality
"Even with an ASIC value of 55.4%, it seemed pretty decent. Although, I'm starting to wonder if these card were intended for the Vapor-X line but had terrible ASIC score. I actually ordered the exact same card for a customer build and it had an ASIC value of 58%. Very poor ASIC quality (< 60%) for both cards that I bought."
Manufacturer Response:GPUZ "ASIC Quality" is not an actual measurement of PCB quality.
It is a calculation based on the voltages and clocks of the across the card and then compared to a reference design.
You will generally find that a card with lower "ASIC Quality" will overclock a lot better than cards with higher "ASIC Quality".
This is usually due to revised PCB designs with better VRM designs offer higher voltages and clocks which lower the "ASIC Quality" score.
This is supported and discussed in detail in many forums.
^^(Stolen from andandtech)^^
Definition of ASIC:
Pronounced ay-sik, and short for Application-Specific Integrated Circuit, a chip designed for a particular application (as opposed to the integrated circuits that control functions such as RAM in a PC). ASICs are built by connecting existing circuit building blocks in new ways. Since the building blocks already exist in a library, it is much easier to produce a new ASIC than to design a new chip from scratch.
ASICs are commonly used in automotive computers to control the functions of the vehicle and in PDAs.
Then of course GPUz's explanation:
Should clear up some of the confusion.
On another note:
Do not buy Sapphire, I'm RMA'ing a regular 7870 that craped out and their RMA process is terribly annoying and repetitive. They also forward you to a company called Althon Micro, Inc. to handle their RMAs..
Only others I've dealt with were MSI and ASRock, both which I highly recommend. Edited by MikeMike86 - 4/24/13 at 9:44pm