The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL.
The Tessellation performance should be improved (like the desktop 6800 series) with the new cards. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The 400 Stream processors are still based on the 5D architecture similar to the 5000 series. It is still built in 40nm and supports DirectX 11. Furthermore, the clock rate is reduced to 450 MHz.
It is based on the same chip as the Radeon HD 6630M but features only 5 SIMD blocks and therefore just 400 shader units. The AMD Radeon HD 7610M (sometimes also called AMD Radeon HD 7610M) is a low-end middle class graphics card for laptops in 2011.
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