my Intel Core i5-2400 testing with a ASRock Z68 Extreme3 Gen3 and Gigabyte NVIDIA GeForce GTX 550 Ti 1024MB on Gentoo 2.2 via the Phoronix Test Suite. Gigabyte NVIDIA GeForce GTX 550 Ti: Processor: Intel Core i5-2400 @ 5.90GHz (4 Cores), Motherboard: ASRock Z68 Extreme3 Gen3, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 8192MB, Disk: 3001GB Western Digital WD30EZRX-00D + 2000GB Seagate ST32000542AS, Graphics: Gigabyte NVIDIA GeForce GTX 550 Ti 1024MB, Audio: C-Media CMI8788, Network: Intel 82572EI Gigabit OS: Gentoo 2.2, Kernel: 3.18.3-gentoo (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.16.3, OpenGL: 4.5.0 NVIDIA 346.35, Compiler: GCC 4.9.2 + Clang 3.5.1 + LLVM 3.5.1 + CUDA 6.5, File-System: btrfs, Screen Resolution: 1366x768 Unigine Heaven 4.0 Resolution: 1366 x 768 Frames Per Second > Higher Is Better Gigabyte NVIDIA GeForce GTX 550 Ti . 27.56 |===================================