Crossfiring HD 7870's is not giving any boost to FPS in games

tadeuty

Honorable
Nov 10, 2013
28
0
10,540
Hello,

I just got a second Gigabyte Radeon HD7870 Ghz edition (OC to 1100mhz) and added it to my computer. I was so excited to boot up what I thought would be an awesome gaming computer and found that the FPS did not improve at all in games like Battlefield 4, Sniper Elite, Dirt 3, anything.

Crossfire is enabled in CCC (version below), I have the molex power going into the motherboard for crossfire, and the bridge is on the cards. I am getting plenty of power because I just went out and bought a nice PSU for them. Any ideas would be greatly appreciated, below are my specs:

Processor: Core i5 3350p (Ivy Bridge)

Graphics cards: Both are Gigabyte Radeon HD 7870 Ghz edition, come Overclocked to 1100mhz

Motherboard: ASRock Extreme6 Z77 (1155 socket), has crossfire functionality, pcie 3.0, the works

Power Supply: Brand new Corsair RM650 Gold

RAM: 16gb 1333 (not the best RAM, but that can't be the problem, right?)

SSD: Kingston HyperX (this is the hard drive that has BF4 on it)

HDD: WD 500GB

CCC Version: 13.9

OS: Windows 7 Ultimate 64bit

Monitor: LG 24EN33 LED, 1920x1080

Again any help is appreciated, thanks for taking the time to look at this for me


So after some support from the community, I have been informed that there is a beta driver for Radeon 7800 series that has a BF4 crossfiring profile. However, every attempt to install this driver has resulted in a blue screen of death.
 
Try turning vsync off in games. With that setup, for the most part you'd already be getting 60fps in games, which assuming you have a 60hz monitor with vsync on, you'd not see any difference. Vsync matches the FPS to that of the hz of the monitor. So, 60hz monitor would see a max of 60fps while vsync is enabled.
 

tadeuty

Honorable
Nov 10, 2013
28
0
10,540
Thanks for the reply, but unfortunately the problem is that on high settings, say in bf4, it is at below 60fps consistently. I have seen people online being able to play it on ultra with the same cards and I can't even do well on high. Btw, with only one of these cards, I'm getting the same fps on high (about 40-50 frames in intense situations with v-sync off)