It has 3 gb of ram which makes it fast. My other tablet is just about as fast but has 1 gb of ram so that is a choke. By the way....I have the 32 gb version and while I have Lots of apps that are power hungry it still has plenty of room. Having a micro SD card (I use a 64 GB) means I have LOTS of space to store programs...many can be run from the SD card using the app control within the Android system. Warning though...if you place all your apps on the SD card you will not be able to run them if you swap out the SD card to put in another one for additional space. But 64 is a LOT of space. One way to add lots of additional memory is to get the Samsung adaptor cable that plugs in the proprietary port and has a USB female port...you can add flash drive....you can even get a flash drive splitter so you can add a few additional flash drives at the same time (think the limit is around 4-5 but that is tons of space).