TSTR wrote:CPU-wise, I would go with something way more affordable like a FX-4350 if you're just looking for current-gen console equivalency. That will save you a lot of cash that can be spent on a better PSU, cooling, or even in the GPU area if you want more beef than a PS4.
EDIT: And yeah, there's no way you're gonna build a PS4/XB1-equivalent PC from scratch for $400. You'll be doing real good to keep it under $600 just for parts.
Ok, gonna try:
CPU - $85: http://www.newegg.com/Product/Product.a ... -_-Product
MOBO - $55 (AR) - http://www.newegg.com/Product/Product.a ... 6813131942
GPU - $100: http://www.newegg.com/Product/Product.a ... 6814150663
HDD - $50: http://www.newegg.com/Product/Product.a ... -_-Product
RAM - $73 - http://www.newegg.com/Product/Product.a ... 6820211861
PSU - $25 (AR) - http://www.newegg.com/Product/Product.a ... 6817153165
Drive - $15 (promo) - http://www.newegg.com/Product/Product.a ... 6827135305
Case - $30 (AR) - http://www.newegg.com/Product/Product.a ... 6811147184
--------------
$433
This was just snooping around on newegg a little bit. If you can find a good CPU and Mobo combo, you can probably get it closer to $400...microcenter has some cheap combos like these and I've read some places arguing that the new console CPUs are more akin to something like an A6600. If you save $40 there with something like the bundle with the Gigabyte GA-F2A55M-HD2 (free after rebate) you could spend another $30 or so on a Raedon 7850 instead and have a better GPU. In any case, Under $500 is very doable and under $400 is plausible.