Answer: Flash memory cards, USB drives and tiny hard disks.
Explanation:
Although it's too early in the year to know what the best one is and there are many, in 2015 the most powerful GPUs were the EVGA GeForce Titan X, the Zotac GeForce GTX 980Ti and the <span>Gigabyte Radeon R9 Fury X.</span>
Prototype is a working model for a product only for testing purposes
