Actually, a decent quality GPU is the single most important part. Without that, forget it:
Minimum requirements for Titanfall on PC:
OS: 64-bit Windows 7, 8, 8.1
Processor: AMD Athlon X2 2.8GHz or Intel Core 2 Duo 2.4GHz
Memory: 4GB RAM
Video card: 512MB VRAM,
Radeon HD 4770 or GeForce 8800GT
None of Intel's IGPs are supported and none will ever be supported
