Guild Wars 2

My system is as follow :
CPU : AMD A10 6800K with Radeon 8670D
VGA : XFX Radeon 7750
RAM : 16 GB (8gb x2 ddr3 1600)
Playing in : 1920*1080 fullscreen, high setting

I’ve crossfired dual graphic and found out that the game’s performance dropping drastically.
When I’m using only on-board vga (8670D) I got 20-25 fps .
But when I do crossfired with 7750 I got just 2-6 fps.

What should I do?

on-board video cards run slower.
disable the on-board card and see if it is better.
i use crossfire and i got a massive improvement. i crossfire radeon hd 6770. i used to get 15 fps on max and now i get 40 on max

Additional Information:
In the attached screenshot, on the left is when dual graphic enable, on the right is when running on a pure A10 6800K.

With 13.8 Beta Catalyst Control Center

And I’ve already tried all the method posted on the forums that nothing can solve the issue.

Don.6510:

on-board video cards run slower.
disable the on-board card and see if it is better.
i use crossfire and i got a massive improvement. i crossfire radeon hd 6770. i used to get 15 fps on max and now i get 40 on max

I’ve tried that and it’s really improved as you said. But in that case, didn’t I’ve to re-enable it everytime I want to play another game(which works far better when crossfired). =_=lll

I hope there might be some way to fix this dual graphic issue.

it could be the size of you monitor i use a 20" one 1600×900
and how much ram you have and do you do all the driver updates (chip set, sata drivers, motherboard bios, Ethernet or wireless)

Monitor size is not the factor. It’s the resolution. You can have 15" monitor at 1880p.

His problem is just driver issues.