NVIDIA GT200 GPU and Architecture Analysis
Beyond3D has published a very detailed article on the architecture of the GT200, the GPU behind the GeForce GTX 280.
Read tHe complete analysis HERE.
If it’s not clear from the above diagram, like G80, GT200 is a fully-unified, heavily-threaded, self load-balancing (full time, agnostic of API) shading architecture. It has decoupled and threaded data processing, allowing the hardware to fully realise the goal of hiding sampler latency by scheduling sampler threads independently of, and asynchronously with, shading threads.