iMac Intel Core i5 testing with a iMac and AMD Radeon Pro 570 4GB on macOS 10.13.6 via the Phoronix Test Suite. first test: Processor: Intel Core i5 @ 3.40GHz (4 Cores), Motherboard: iMac, Chipset: Intel 10, Memory: 2 x 4 GB DDR4-2400MHz, Disk: 1 TB APPLE HDD ST1000DM003, Graphics: AMD Radeon Pro 570 4GB, Monitor: iMac OS: macOS 10.13.6, Kernel: 17.7.0 (x86_64), Compiler: Clang 9.0.0 + GCC 4.2.1 + LLVM 9.0.0 + Xcode 10.1, File-System: Journaled HFS+, Screen Resolution: 5120x2880 Timed LLVM Compilation 6.0.1 Time To Compile Seconds < Lower Is Better first test . 938.54 |==========================================================