Hey
Here are the system requirements required for UE4:
For developing with UE4, we recommend a desktop PC with Windows 7 64-bit or a Mac with Mac OS X 10.9.2 or later, 8 GB RAM and a quad-core Intel or AMD processor, and a DX11 compatible video card. UE4 will run on desktops and laptops below these recommendations, but performance may be limited.
You can locate this information by going [here][1].
Without seeing your dxdiag from your computer, I can’t say whether or not it’s your processor. However, if the error is stating that, you may need to upgrade your computer. You can always submit your dxdiag to us. You obtain that information by going to your start menu, typing in ‘dxdiag’ and running the ‘dxdiag.exe’. Once the program opens, click on ‘save all information’ and upload it to your next reply to us.
Thanks!