GCC 4.7 Intel Sandy Bridge corei7-avx
GCC testing for a future article on Phoronix.com. Benchmarks of GCC 4.7 RC2 when comparing the effects of using GCC with -march= CPU optimization flags of core2, corei7, and corei7-avx from an Intel Sandy Bridge Extreme Edition system.


GCC 4.7 RC2 - Stock: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 5700 1024MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.4.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.1 Gallium 0.4, Compiler: GCC 4.7.0 20120314, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.7 RC2 - core2: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 5700 1024MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.4.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.1 Gallium 0.4, Compiler: GCC 4.7.0 20120314, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.7 RC2 - corei7: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 5700 1024MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.4.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.1 Gallium 0.4, Compiler: GCC 4.7.0 20120314, File-System: ext4, Screen Resolution: 1920x1080

GCC 4.7 RC2 - corei7-avx: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 5700 1024MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.4.0, Display Server: X Server 1.11.3, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0.1 Gallium 0.4, Compiler: GCC 4.7.0 20120314, File-System: ext4, Screen Resolution: 1920x1080


C-Ray 1.1
Total Time
Seconds < Lower Is Better
GCC 4.7 RC2 - Stock ...... 27.86 |=============================================
GCC 4.7 RC2 - core2 ...... 27.98 |=============================================
GCC 4.7 RC2 - corei7 ..... 27.74 |=============================================
GCC 4.7 RC2 - corei7-avx . 25.80 |=========================================


Smallpt 1.0
Global Illumination Renderer; 100 Samples
Seconds < Lower Is Better
GCC 4.7 RC2 - Stock ...... 21 |================================================
GCC 4.7 RC2 - core2 ...... 21 |================================================
GCC 4.7 RC2 - corei7 ..... 21 |================================================
GCC 4.7 RC2 - corei7-avx . 20 |==============================================


GraphicsMagick 1.3.12
Operation: Sharpen
Iterations Per Minute > Higher Is Better
GCC 4.7 RC2 - Stock ...... 88 |===========================================
GCC 4.7 RC2 - core2 ...... 87 |===========================================
GCC 4.7 RC2 - corei7 ..... 88 |===========================================
GCC 4.7 RC2 - corei7-avx . 98 |================================================