fft Intel Core i7-2600 testing with a Dell 0D28YY and Intel HD 2000 on Ubuntu 14.04 via the Phoronix Test Suite. Intel Core i7-2600: Processor: Intel Core i7-2600 @ 3.80GHz (4 Cores), Motherboard: Dell 0D28YY, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 250GB Seagate ST250DM000-1BD14 + 1000GB TOSHIBA MQ01ABD1, Graphics: Intel HD 2000 (1350MHz), Audio: Intel 6 /C200, Network: Intel 82579LM Gigabit Connection OS: Ubuntu 14.04, Kernel: 3.16.0page-alloc+ (x86_64), Desktop: Unity 7.2.6, Display Server: X Server 1.16.0, Display Driver: intel 2.99.914, OpenGL: 3.1 Mesa 10.3.2, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1920x1080 FFTW 3.3.4 Build: Stock - Size: 2D FFT Size 4096 Mflops > Higher Is Better Intel Core i7-2600 . 3677.26 |================================================= FFTW 3.3.4 Build: Float + SSE - Size: 2D FFT Size 4096 Mflops > Higher Is Better Intel Core i7-2600 . 9506.34 |=================================================