But that doesn't make much sense in comparison to evaluating system performance. A Pentium III could have a billion FP32 operations given almost 16 years, but y

But that doesn't make much sense in comparison to evaluating system performance. A Pentium III could have a billion FP32 operations given almost 16 years, but you wouldn't say its 1 GFLOPS. Assuming the "S" is seconds, it becomes a useful metric and we can say it has 2 FLOPS.