I right now have a 512GB SSD with a 60 GB partition for Windows 8.1 Pro (C: drive) and 452 GB partition for games (D: drive). I was considering purchasing a Samsung EVO 120 GB SSD or a Samsung 840 Pro 128 GB SSD for just Windows 8.1 Pro and applications and keeping my 512 GB SSD for just games. Any benefit to have a separate SSD for games vs a separate partition for games on the same SSD as the OS is installed?