AMD Radeon HD 6790 Graphics Card
 

Today, AMD releases an answer to NVIDIA's GeForce GTX 550 Ti and closes the
performance gap between the low-end Radeon HD 5770 and mid-end Radeon HD
6850. The new Radeon HD 6790 is based on the cut-down Barts GPU used in the
Radeon HD 6850 cards and has the MSRP of $149.

http://ixbtlabs.com/articles3/video/barts-4-p1.html