AMD today previewed its next two generation of desktop platforms for performance and mainstream platforms. The new platforms outline details of new AMD chipsets, processors and graphics cores. AMD's next new performance platform will be Spider. Spider is the first platform for AMD Phenom X4 and X2 processors, slated for later this year. AMD pairs the Phenom X4 and X2 processors with the upcoming RD7xx series chipsets for Spider. Spider also features PCIe 2.0, and HyperTransport 3.0, or HT3. Following Spider is Leo. Leo is AMD's 2008 platform refresh, again designed to accommodate Phenom X4 and X2 processors with up to 6MB of L3 cache. Leo will still use the RD7xx series chipsets, but with support for up to four GPUs in CrossFire. Following Leo's debut in 2009, are Python, Cartwheel and Copperhead DDR3 platforms. Read more about them here.