A-Tech 16GB (2x8GB) RAM for Dell Inspiron 3647, 3847 | DDR3 1600MHz DIMM PC3-12800 240-Pin Non-ECC UDIMM Desktop Max Memory Upgrade Kit at Amazon.com
memory - I'm upgrading my RAM, and have conflicting results from CPU-Z and CrucialScan; how many RAM slots do I have? Also, 4x4GB vs. 2x8GB? - Super User
What is better: 2x8GB or 4x4GB DDR4 memory? | Hardware Corner
CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I5 2.5 21.5-Inch (Mid-2011) - A28 at Amazon.com
Timetec 16GB KIT(4x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 Dual Rank for iMac (Late 2009 21.5-inch / 27-inch) SODIMM Memory MAC RAM Upgrade for iMac 10,1 and iMac 11,1 at Amazon.com
4x4Gb vs 2x8Gb vs 1x16Gb RAM Test in 6 Games - YouTube