Games use floats and pointers, and I suspect the only floating point bits they use is the 52-bit integer multiply that was added specifically to optimize crypto

Games use floats and pointers, and I suspect the only floating point bits they use is the 52-bit integer multiply that was added specifically to optimize crypto algorithms. The integer vector extensions they're almost certainly using I'd argue are primarily designed to optimize various codecs not games; unsurprisingly, crypto algorithms tend to have similar CPU loads to compression algorithms.