For video cards that support it. It is not just any old versions of Optimus, but also supports the GeForce 8M, 9M, 100M, 200M, 300M, 400M, and 500M-series, which, if viewed from the list. It covers even the 8M-series for the older driver version will support Windows 7 only
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280.26 WHQL Windows 7 32 bit
280.26 WHQL Windows 7 64 bit
