Why is it that Alienware PC's always have terrible GPU's in them but good CPU's?
They don't always. The cheaper ones do because they obey the same "laws" as other cheap PCs. You can sell a PC for a higher price if you advertise it as a 6 GHz quad core Intel Core i7 with 32 GB of RAM and 4 TB of storage and... a Radeon 6450. People see quad core, high gigahertz, gobs of RAM, terabytes of storage and see value but know nothing about video cards.
-What is best in life? -To crush your enemies, see them driven before you, and to hear the lamentation of the women.