GT200B is the codename for a graphics processing unit (GPU) developed by NVIDIA. It is a variant of the GT200 GPU, which was part of the GeForce 200 series. The GT200B was used in graphics cards such as the GeForce GTX 285. It featured improvements and refinements over its predecessor, offering increased performance and efficiency. With 240 stream processors and a higher clock speed, the GT200B delivered enhanced gaming capabilities and better graphics rendering. It supported DirectX 10 and Shader Model 4.0, enabling advanced visual effects and compatibility with a wide range of games and applications. The GT200B GPU provided a high-performance solution for gamers and enthusiasts during its release.