Bad performance? Help! R9 290 crossfire, i7 4770k, 16GB

[JustNeedSomeHelp]

FPS:
67.0
Score:
1689
Min FPS:
23.2
Max FPS:
163.4
System

Platform:
Windows NT 6.2 (build 9200) 64bit
CPU model:
Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (3498MHz) x4
GPU model:
AMD Radeon R9 200 Series 13.350.1005.0 (4095MB) x2
Settings

Render:
Direct3D11
Mode:
1920x1063 windowed
Preset
Custom
Quality
Ultra
Tessellation:
Extreme

In Battlefield 4 my fps are from 50-90.

 

[kammem]

not good performace looks like gtx770

 

[Derek Warner]

what motherboard do you have? does it support crossfire and sli or just crossfire? if it only supports crossfire it means that the pci-e x 16 slots are running on 4x lanes which is a massive bottleneck for both cards. if you disable the second card the first lane should use 16x lanes again and it wil give you full preformance. what psu are you using?