Hey guys. I recently upgraded my rig to the following:

Intel core i5 4670K, 2xHD7970, 8 GB Muskin Blackline, Adata S511 128 GB SSD.

Before, when using a a single 7970 and a core i5 750, I could easily maintain 100-120FPS. Now, I can maintain 70-90. When I have crossfire enabled, it hovers at 60-70.

At first I thought my monitor was working at an incorrect refresh rate, but vsync is off, and the refresh rate in windows is set to 120Hz. My current drivers are:

CCC: 13.2
Graphics Driver: 12.10.17-130226a-153761E-ATI

Help me forums! You're my only hope!

Hello, watch out your power supply=) but seriously, download and install latest beta driver with updated crossfire profiles!
p.s once had such problem when my second gpu was turned off by driver application cuz of second monitor, use msi afterburner or common application to monitor gpu loading.

that 750w psu is fine dont worry.

also use this(before running game:) r_MultiGPU = 1

btw try to remove one card out of slot and whats ur fps now?

that 750w psu is fine dont worry.

also use this(before running game:) r_MultiGPU = 1

btw try to remove one card out of slot and whats ur fps now?


No worry, watch out specification on crossfire with hd7970 at amd off site, then type messages, its 850w.
http://www.amd.com/us/products/desktop/graphics/7000/7970ghz/Pages/radeon-7970GHz.aspx#2

I have been getting serious performance issues these past few days, Have changed absolutely nothing, same as you gett ing around 50 - 80 frames whereas before I was always pushing 130+

It seems to happen mostly when im playing ona map with alot of water, Williamsburg and museum are serious Frame Tankers now, even worse than before.

that 750w psu is fine dont worry.

also use this(before running game:) r_MultiGPU = 1

btw try to remove one card out of slot and whats ur fps now?


No worry, watch out specification on crossfire with hd7970 at amd off site, then type messages, its 850w.
http://www.amd.com/us/products/desktop/graphics/7000/7970ghz/Pages/radeon-7970GHz.aspx#2
lol you trust this? its just marketing to force people buy more powerfull psu ;D

okay I did calculated something

7970 hard oc in full load 309w ..
so 309w x 2 + 69w cpu + rest of system 50w = 737W

but for the longer system health I would go to 850w psu

that 750w psu is fine dont worry.

also use this(before running game:) r_MultiGPU = 1

btw try to remove one card out of slot and whats ur fps now?


No worry, watch out specification on crossfire with hd7970 at amd off site, then type messages, its 850w.
http://www.amd.com/us/products/desktop/graphics/7000/7970ghz/Pages/radeon-7970GHz.aspx#2
lol you trust this? its just marketing to force people buy more powerfull psu ;D

okay I did calculated something

7970 hard oc in full load 309w ..
so 309w x 2 + 69w cpu + rest of system 50w = 737W

but for the longer system health I would go to 850w psu

new i5 tdp is 84 btw+overclock its about 100=) agreed with marketing, i had 700w cooler master silent pro gold for my system(i7-3770k@4700,gtx690,3hdd+sdd+asus phoebus+5-6fans) and it seems no problems.