I'm wondering one thing about VRAM overclocking. I've pushed my HD7950's VRAM to 7000MHz effective frequency (1750MHz) and the card is working perfectly fine in games and feels ridiculously fast. And since I know these new cards have CRC checking of data in the memory, too high frequencies can actually result in decreased performance (because the card has to repeat the stuff till it gets the right data out).
However, during my testing, SiSoft Sandra VRAM bandwidth test and 3DMark2013 scores just kept on climbing. Same goes for the actual framerate in games.
This is an increase from 1250MHz (5000MHz) to whooping 1750MHz (7000MHz). It's what GTX 970 has on the PCB.
Am I just so incredibly lucky or is there some sort of measuring flaw in my testing methodology?
Btw, I'm overclocking by modding and flashing the BIOS, doing it with Afterburner makes the card very twitchy and inconsistent along with stability issues.
However, during my testing, SiSoft Sandra VRAM bandwidth test and 3DMark2013 scores just kept on climbing. Same goes for the actual framerate in games.
This is an increase from 1250MHz (5000MHz) to whooping 1750MHz (7000MHz). It's what GTX 970 has on the PCB.
Am I just so incredibly lucky or is there some sort of measuring flaw in my testing methodology?
Btw, I'm overclocking by modding and flashing the BIOS, doing it with Afterburner makes the card very twitchy and inconsistent along with stability issues.