Gigabyte Z87X-UD3H i7-4771 4 cores @ 3.50GHz w/ 16G of Ram @ 1600MHz Hyperthreading enabled for a total of 8 virtual cores Toshiba THNSNHH256GBST SSD Linux debian 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u1 x86_64 GNU/Linux MySQL 5.6.22 nginx-1.2.1 + php-fpm for all tests unless indicated otherwise Quiet local 100Mbps network siege benchmark tool run from a separate machine All versions of PHP compiled locally using gcc-4.7.2 -O2 hhvm (tags/HHVM-3.5.0-0-ga90f4733cfa0d8fefdafc7433f758f78cdc75424) from BR/ "deb http://dl.hhvm.com/debian wheezy main"