Which computer is better? (HP vs Lenovo)?

Decided to choose between these two computers not sure which would be better.
http://www.bhphotovideo.com/...r9260.html
Or http://m.store.hp.com/us/en/pdp/desktops/hp-envy-750xt-desktop-pc-n0x13av-aba-1#/choices/choice/N0X13AV#ABA.KeyboardMouse with the processor upgraded to the second one, graphics card to the third and power to the 500w (they would cost about the same for me)
I've tried researching what everything means but it just doesn't work with me.

It depends, I would go with the first one because it has a dedicated card, not intel HD graphics but the second one(providing you get the GTX 960 graphics card) it is really good. The CPU for the second one is pretty good.

1st one if you want to do standard stuff like web browsing, minor programming, maybe a game or two(not intense)
2nd one if you want to play games and plan to overclock the CPU(and make sure to get the GTX 960)