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I have been doing an experiment to choose between MinGW and MSVC. I decided to use Adobe C++ Performance Benchmark to do it. While MSVC's output was exceptionally faster on some operations, it was as slow on some other operations. I will add other parts of the benchmark suite when I have time to do them. I have removed some of the benchmarks that has same results due to character limit, you can interpret them by the pattern I assume. System Information AMD Athlon(tm) 64 X2 Dual Core Processor 5200+ 2.70GHz 6GB DDR2 800MHz RAM Windows 8 Any idea why the result is slow? Also, can this test's result to interpret a computer game performance (CPU physics engine maybe) because especially floating point benchmarks are slower? - MinGW g++ -march=native -O3 -ffast-math -fomit-frame-pointer -momit-leaf-frame-pointer -flto -fwhole-program -ftree-loop-distribution simple_types_loop_invariant.exe test description absolute operations ratio with number time per second test0 0 "uint8_t variable add" 1.91 sec 836.38 M 1.00 1 "uint8_t variable add hoisted" 0.08 sec 19277.11 M 0.04 2 "uint8_t multiple variable adds" 1.93 sec 829.45 M 1.01 3 "uint8_t variable subtract" 1.92 sec 832.47 M 1.00 4 "uint8_t multiple variable subtracts" 2.57 sec 623.30 M 1.34 5 "uint8_t variable multiply" 1.93 sec 831.17 M 1.01 6 "uint8_t multiple variable multiplies" 2.56 sec 625.00 M 1.34 7 "uint8_t multiple variable multiplies2" 1.92 sec 834.64 M 1.00 8 "uint8_t variable divide" 10.83 sec 147.70 M 5.66 9 "uint8_t multiple variable divides" 42.14 sec 37.97 M 22.03 10

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