eConcept Memory Booster 

eConcept Memory Booster will increase and free your RAM, giving applications more RAM to work with, and thus will speed up your computer. Comes with three levels of optimization.
ram memory increase memory optimize memory

TweakRAM 

TweakRAM is a handy memory optimizer tool that will keep your computer running faster and efficiently. It increases your system performance by making more memory available for your applications and the operating system.
ram optimizer memory manager optimize memory memory optimizer memory optimization dodje ram dodje memory free ram ram idle free memory memory defragmantation cleaning memory unloading of unnecessary libraries