Hi, it will take more than just a CPU upgrade for the 1545 to handle modern games. The GPU is integrated, so is impossible to upgrade. Crucial has some solutions that are confirmed to work like RAM upgrades (up to 8GB) and SSD replacements. If you are a tinkerer and adventurous, though, there is a very tricky solution to get around the integrated GPU. However, you'll be creating a Frankenstein. The 1545 motherboard happens to don an Express Card slot. With a little research you can find mods to connect an external GPU. Like I said, though, it's a Frankenstein mod. Happy hunting!