Compiler Comparaison on Macbook Pro Retina 2012 15" Apple Xcode 10 Xcode 10: Processor: Intel Core i7 @ 2.30GHz (4 Cores / 8 Threads), Motherboard: Apple MacBook Pro, Chipset: Intel 7, Memory: 2 x 4 GB DDR3-1600MHz, Disk: 251GB APPLE SSD SM256E, Graphics: Intel HD 4000 + NVIDIA GeForce GT 650M 1536MB, Monitor: Color LCD OS: macOS 10.13.6, Kernel: 17.7.0 (x86_64), Display Server: X Server 1.18.4, OpenGL: 2.1, OpenCL: OpenCL 1.2 (May 24 2018 22:33:53), Compiler: Apple LLVM 10.0.0 (clang-1000.11.45.5) + GCC 4.2.1 + Xcode 10.1 + CUDA 9.0, File-System: MS-DOS FAT16, Screen Resolution: 2880x1800 GraphicsMagick 1.3.30 Operation: Sharpen Iterations Per Minute > Higher Is Better Xcode 10 . 47 |================================================================ GraphicsMagick 1.3.30 Operation: Resizing Iterations Per Minute > Higher Is Better Xcode 10 . 96 |================================================================ GraphicsMagick 1.3.30 Operation: HWB Color Space Iterations Per Minute > Higher Is Better Xcode 10 . 130 |=============================================================== 7-Zip Compression 16.02 Compress Speed Test MIPS > Higher Is Better Xcode 10 . 18692 |============================================================= Timed Apache Compilation 2.4.7 Time To Compile Seconds < Lower Is Better Xcode 10 . 48.68 |============================================================= Timed ImageMagick Compilation 6.9.0 Time To Compile Seconds < Lower Is Better Xcode 10 . 73.76 |============================================================= Timed PHP Compilation 7.1.9 Time To Compile Seconds < Lower Is Better Xcode 10 . 172.30 |============================================================ C-Ray 1.1 Total Time - 4K, 16 Rays Per Pixel Seconds < Lower Is Better Xcode 10 . 368 |===============================================================