Leadtek has released yet another card in its 8600 series called WinFast PX8600 GT TDH Limited ZALMAN Edition. Leadtek claims 15% quieter card that is 20 C cooler at 20% higher shader clock.
The card is based on a Geforce 8600 GT GPU with 32 Stream Processors that works at reference 540MHz. It comes with 256MB of 128bit GDDR3 memory that is also clocked at reference 1400MHz. The Shader clock ended up clocked at 1488MHz. This is a nice boost from reference 1180MHz.
The card is cooled by Zalman's cooler that should do a better job then 8600GT reference cooling. There also should be some room for further overclocking on the GPU.
As the entire Geforce 8 series this card supports DirectX 10 and Shader Model 4.0