Icare3D

http://news.developer.nvidia.com/2010/04/nvidia-releases-opengl-4-drivers-plus-8-new-extensions.html

Quickly:

• Fermi/DX11 level shaders extensions (NV_gpu_program5, NV_tesssellation_program5, NV_gpu_shader5)
• Global memory Load/Store from shaders ! (NV_shader_buffer_load, NV_shader_buffer_store, build upon "Bindless Graphics")
• Texture Load/Store ! (EXT_shader_image_load_store)