GPU-Z v0.5.5 has a few new updates and detections, so be sure to update your version!
Grab it if you want to use the latest and greatest - http://www.techpowerup.com/downloads/20 ... 0.5.5.html
GPU-Z is a lightweight utility designed to give you all information about your video card and GPU.
Changes in GPU-Z 0.5.5
* Added PowerColor hardware giveaway
* On multi-GPU systems, GPU-Z will remember the selected card from the selection dropdown
* Added full support for AMD A-Series Fusion processors
* Added detection for ASUS MARS II
* Fixed shader count detection for Blackcomb (mobile AMD Cayman)
* Improved BIOS version reading on NVIDIA
* Added support for NVIDIA GeForce GT 560 Ti OEM, GT 545, GT 530, GeForce GTX 580M, GT 555M, GeForce 520MX, GT 520M, 410M, 305M, Quadro 5000, Quadro 4000M, Quadro 400
* Added support for AMD HD 6290, Radeon E6760 & E4690, FirePro V8800, FirePro V3700, FirePro 2460 (FireMV)