Radeon 6790 Review

I know I missed it a bit but some days ago its premiere had 6790.
I am quite surprised by performance especially in crossfire mode.
Specs of the card:

GPU: 840 mhz
800 Stream Processors
RAM Frequency: 4,2 GHz on 256 bit interface
RAM Amount: 1 GB

Check out the review on Guru3D: http://www.guru3d.com/article/radeon-hd-6790-review/