ddr3-1333-vs-1866 Comparision between Corsair Vengeance Pro 2 x 8GB (C9) in stock (1333MHz) vs. XMP (1866MHz) with a i7-4790K CPU on an Asus Gryphon Z97 motherboard. RAM part number CMY16GX3M2A1866C9. ,,"DDR3-1333","DDR3-1866" Processor,,Intel Core i7-4790K @ 4.00GHz (8 Cores),Intel Core i7-4790K @ 4.00GHz (8 Cores) Motherboard,,ASUS GRYPHON Z97 ARMOR EDITION,ASUS GRYPHON Z97 ARMOR EDITION Chipset,,Intel 4th Gen Core DRAM,Intel 4th Gen Core DRAM Memory,,16384MB,16384MB Disk,,256GB Samsung SSD 850,256GB Samsung SSD 850 Graphics,,Intel Xeon E3-1200 v3/4th Gen Core IGP,Intel Xeon E3-1200 v3/4th Gen Core IGP Audio,,C-Media CMI8788,C-Media CMI8788 Monitor,,E2350,E2350 Network,,Intel Connection,Intel Connection OS,,CentOS 6.6,CentOS 6.6 Kernel,,2.6.32-504.el6.x86_64 (x86_64),2.6.32-504.el6.x86_64 (x86_64) Compiler,,GCC 4.4.7 20120313,GCC 4.4.7 20120313 File-System,,ext4,ext4 Screen Resolution,,1920x1080,1920x1080 ,,"DDR3-1333","DDR3-1866" "PHPBench - PHP Benchmark Suite (Score)",HIB,135950,136464 "Apache Benchmark - Static Web Page Serving (Reqs/sec)",HIB,27128.01,28816.11 "PyBench - Total For Average Test Times (Milliseconds)",LIB,1724,1720 "PostgreSQL pgbench - TPC-B Transactions Per Second (TPS)",HIB,959.89,999.36 "OpenSSL - RSA 4096-bit Performance (Signs/sec)",HIB,687.90,728.83 "System XZ Decompression - Phoronix Test Suite v5.4.1 (sec)",LIB,3.73,3.70 "GnuPG - 1GB File Encryption (sec)",LIB,6.68,6.65 "LAME MP3 Encoding - WAV To MP3 (sec)",LIB,10.88,10.88 "Gzip Compression - 2GB File Compression (sec)",LIB,9.38,9.32 "Parallel BZIP2 Compression - 256MB File Compression (sec)",LIB,6.33,5.87 "Timed PHP Compilation - Time To Compile (sec)",LIB,21.61,19.81 "Unpacking The Linux Kernel - linux-2.6.32.tar.bz2 (sec)",LIB,6.91,6.77 "SQLite - Test Target: Default Test Directory (sec)",LIB,100.51,97.35 "AIO-Stress - Test: Random Write (MB/s)",HIB,4443.00,4581.54