The Dolphin Team have released a new version
of the Gamecube and Wii Emulator for Windows, heres whats new

Changelog for r6604
**Changes**

* More formats recognition for "Clear Screen" step. Improved the ability handling the alpha channel (% color translucency).
* Related to CPUID detecting:
- Added support displaying correct SysInfo for recent multicore Intel CPUs x86-64 with HT/SMT (Core i3/i5/i7 and Xeon) based on Nehalem architecture.

+ minor and passive changes.

Download Here --> http://www.dolphin-emulator.com/download.html