Crossfire 7870 50% GPU Usage in bf3

Krazeee

Honorable
Aug 12, 2012
236
0
10,710
Alright so I get 50% GPU Usage in bf3 multiplayer...

Single card ultra i get ~65FPS. On Crossfire I get ~90FPS.

This doesn't seem right because other reviews conclude that bf3 scales 90%+

Note I am running 120hz and I have disabled and enabled V-sync with no apparant change.

My Cards are at stock and so is my CPU (Since i have good components, no need to oc it yet)

i5-3570k Stock
7870 crossfire stock
AX750
16gb corsair vengeance

Temps never pass 60 degrees on crossfire while gaming.

I thought it could be a cpu bottleneck but i dont really think the i5-3570k would bottleneck. I have an aftermarket 620 cooler i could OC to 4GHZ. Would this help?

I have latest drivers for CRossfire and CCC.

The GPU usage goes from 50-75% randomly going up and down on both cards.

Thanks!

Btw my card scales 90% with non-CPU games like Tombraider

Is bf3 multiplayer that aggressive?
 

Krazeee

Honorable
Aug 12, 2012
236
0
10,710


Well, I tried to OC to 4GHZ but thats jut 200mhz more than 3800mhz which its at So i cant really push it as my antec 620 has a defective pump (70degrees on stock wtf i know right)

I dont know what else to do
 
Would presume there's a CPU limitation based on what you've provided so far. BF3 is a fairly CPU intensive game title. Overclocking usually helps a lot. However, if you're Antec 620 is letting you run @ 70C you've got a problem. I'm pushing an i5-750 @ 4Ghz and never get that high playing BF3.
 

Krazeee

Honorable
Aug 12, 2012
236
0
10,710


When i play games on stock OC I'm getting in the 60 degree range on gpu and cpu but when i use intel burn test on cpu if i oc to 4.2+ i get 80 degrees lol.
 


Using Intel Burn Test is about checking for OverClock stability. Your CPU temps are not going to be realistic. Those are beyond worst case scenario. Not much else will ever cook your CPU that far. That being said, 80C is not safe for a CPU so don't run it at those temps for very long!

If you normally hit 60C during gameplay you are fine.
 

Krazeee

Honorable
Aug 12, 2012
236
0
10,710


I hit 96 degrees on a 4ghz overclock wtf is wrong, i used to get 66 degrees on 4ghz now i get 70 on stock wtf happened ambient is same