NVIDIA finally released the graphics cards it made many wait for: the DirectX 11 compliant GeForce GTX 480 and GeForce GTX 470. The two were unveiled at the PAX East gaming event, in the United States, as publications were allowed to post reviews right away. The two are based on the NVIDIA GF100 GPU, built on the 40 nm process. The higher-end GeForce GTX 480 packs 480 shader units (now referred to by NVIDIA as "CUDA cores"), branched geometry processing along with multiple tessellation units, and a 384-bit wide GDDR5 memory interface to connect to 1536 MB (1.5 GB) of memory. The GeForce GTX 470 is the more affordable part, it packs 448 CUDA cores, and a 320-bit GDDR5 memory interface to connect to 1280 MB (1.25 GB) of memory. Both models support new features by NVIDIA, such as CUDA 3.0, faster PhysX acceleration, Stereoscopic 3D, 3D Vision surround multi display technology, as well as support for OpenCL and DirectCompute 5.0. While the GeForce GTX 480 has a suggested retail price of US $499, the GTX 470 is suggested to be priced at $349, although final pricing set by board partners could vary. NVIDIA is initially making tens of thousands of these cards, which should be available worldwide a little after April 12th.