In this article, you will find out how hardware based Event Based Sampling (EBS) technology can help developers estimate the floating point operations per second executed by their applications. FLOPS will refer to 32 bit and 64 bit floating point operations and the operations will be either addition or multiplication (computational).
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SSE hasn't been widely used for some reason except in scientific and engineering applications. In IT nobody cares. But others are feeling "the need for speed" and with multicore it's going more mainstream as programmers try to maximize the performance of the relatively stagnant clock-rate cores. You need to check the processor the app is running on for support of SSE (and variants) and AVX. If you have both you could mix them but you'll suffer a big performance penalty switching back and forth. You're better off creating multiple compile units using each one and after checking the processor, choose the one to use. (And use the Intel compiler)