The 512MB version of the GeForce 7800 GTX graphics card will be officially launched on Monday but some stores are already selling them. Over the NV News forum we can already take a peek at these cards and have a look at some benchmarks.
The post at NV News can be found here. Uberhunter tested the card on his AMD Athlon 64 X2 4400+ system. He scored 9766 in 3DMark05 and overclocking the card to 600MHz core/1800MHz memory brought him to 9931 3DMarks.
Reviews of this graphics card will follow on Monday after NVIDIA lifts the NDA