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8-Core Intel Xeon E5 testing with a Apple Mac Pro and AMD Radeon HD 6xxx 1024MB on macOS 10.12.2 via the Phoronix Test Suite.


clang clang++: 

	Processor: Intel Core i5-4210U @ 2.39GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 8192MB, Disk: 52GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Monitor: VBOX monitor, Network: Intel 82540EM Gigabit

	OS: Ubuntu 16.04, Kernel: 4.4.0-31-generic (x86_64), Desktop: Unity 7.4.0, Display Driver: modesetting 1.18.3, Compiler: GCC 5.4.0 20160609 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 800x600, System Layer: Oracle VirtualBox

change flag: 

	Processor: Intel Core i5-4210U @ 2.39GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 8192MB, Disk: 52GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Monitor: VBOX monitor, Network: Intel 82540EM Gigabit

	OS: Ubuntu 16.04, Kernel: 4.4.0-31-generic (x86_64), Desktop: Unity 7.4.0, Display Driver: modesetting 1.18.3, Compiler: GCC 5.4.0 20160609 + Clang 3.3 + LLVM 3.3, File-System: ext4, Screen Resolution: 800x600, System Layer: Oracle VirtualBox

-O2: 

	Processor: Intel Core i5-4210U @ 2.39GHz (2 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 8192MB, Disk: 52GB VBOX HDD, Graphics: InnoTek VirtualBox, Audio: Intel 82801AA AC 97 Audio, Monitor: VBOX monitor, Network: Intel 82540EM Gigabit

	OS: Ubuntu 16.04, Kernel: 4.4.0-31-generic (x86_64), Desktop: Unity 7.4.0, Display Driver: modesetting 1.18.3, Compiler: Clang 3.3 + GCC 5.4.0 20160609 + LLVM 3.3, File-System: ext4, Screen Resolution: 800x600, System Layer: Oracle VirtualBox

8-Core Intel Xeon E5 @ 2.90GHz 32 Cores: 

	Processor: 8-Core Intel Xeon E5 @ 2.90GHz (32 Cores), Motherboard: Apple Mac Pro, Chipset: Generic AHCI, Memory: 4 x 8192 MB DDR3-1600MHz, Disk: 960GB Crucial_CT960M500SSD1, Graphics: AMD Radeon HD 6xxx 1024MB, Monitor: DELL U3415W

	OS: macOS 10.12.2, Kernel: 16.3.0 (x86_64), Display Server: X Server 1.16.4, OpenGL: 2.1, Compiler: Apple LLVM 8.0.0 (clang-800.0.42.1) + GCC 4.2.1 + Xcode 8.2.1, File-System: Journaled HFS+, Screen Resolution: 3440x1440


C-Ray 1.1
Total Time
Seconds < Lower Is Better
clang clang++ ........................... 255.17  |====
change flag ............................. 1734.27 |============================
-O2 ..................................... 177.40  |===
8-Core Intel Xeon E5 @ 2.90GHz 32 Cores . 11.01   |