The Dell Inspiron 15 7559 will boot off the new SSD drive. You'll notice a difference in performance at this point: boot-up is faster and apps open more quickly.

With the Dell Inspiron 15 5570 being sold as having 20GB of memory but only 4GB of that being actual RAM, we try to answer your questions on whether you should upgrade or not.

Is it worth it to upgrade a laptop's RAM or storage? We had a chance to find out when Dell asked us to test the upgradability of its Inspiron 15 7000.

Dell’s Inspiron 11 3000: A $199 laptop with intriguing upgrade options Hands-on: Other cheap Windows laptops are stuck with 2GB RAM and 32GB of storage.

The Dell Inspiron 15 7000 specializes in upgradeability, letting you swap out the RAM and add up to two drives for more storage. Otherwise, it's just average.