I purchased an AMD 7970 on monday as an upgrade from my 6870, and it doesn't seem to be running as I expected. In some games, such as Deus Ex I can get 90-130 FPS with v-sync switched off, but in others, such as GTA IV I am getting between 35-45fps. Some games ran at a steady 60fps with my 6870 and now run between 45-60fps on my 7970 (Battlefield bad company 2) Could it be a problem with my card or is it likely to be a bottleneck of some kind. My current rig is as follows:
Motherboard: Asus M4A79XTD Evo (GPU PCI slow is 2.0 and 7970 is a pci 3.0 card, but I read extensively that it makes no difference if its 2.0 or 3.0)
PSU: OCZ Fatal1ty 750W modular
CPU: AMD Phenom II 965 (3.4Ghz)
RAM: Kingston HyperX blue (1333mhz)
HDD: Western Digital Caviar 500gb 7000rpm
SSD: 120GB OCZ Agility 3
GPU: PowerColor 7970 (not stock version, has 2 fans instead of the normal long case with 1 fan. Was running 12.4 drivers but heard they had problems and experienced low FPS myself so went onto 12.6 beta drivers)
Any thoughts as to what it could be? I shouldn't be getting less FPS than I previously was, it's rather strange...
Cheers everyone! I rolled back to 12.3 and still having problems with FPS. I also tried OCing my CPU to 3.8Ghz (highest it would go and still be stable) but no luck. I think it's time I upgrade to a new CPU, gonna go for the i7 3700k 3.5Ghz. Just trying to find a motherboard that supports the 7970 and i7. On a bit of a tight budget as I have been sinking rather a lot of my wages into this system, haha. So far found http://www.ebuyer.com/281367-asus-p8z68-v-lx-socket-115... and http://www.ebuyer.com/345353-msi-z77a-g43-z77-socket-11... I cant find documentation that states that these two motherboards support the 3GB of RAM onboard the 7970 GPU. Anyone got any idea if they work?