Required modifications in hardware for purpose of heavy gaming

So i am a newbie in computer hardware and i need to modify my desktop to do some heavy gaming (Assassins creed Unity, BF4 etc).
I need to know which graphic card should i install, so as to run these games swiftly.
If there are any other changes other than graphic card, please do tell.
following are my desktop's config :

Processor - AMD A4-6300 AMU
MB - Gigabyte GA F2A55M-S1
4 GB DDR3 RAM
Power unit of 450W

 

Here is the CPU support list for your motherboard_



http://www.gigabyte.com/support-downloads/cpu-support-popup.aspx?pid=4824



The higher end offerings will be equivalent to about a FX 6300 or close, really more equivalent to the FX 6100 but it's still miles ahead of the APU you currently have. You can also opt for one of the APU's (really a CPU) without the onboard APU unit like a 750k.


I do agree with the gentlemen above with switching to an intel platform, or heck even an AMD AM3 with a FX 6300, but that incurs significant cost (not so much with AMD) whereas a simple upgrade o the 6800k or 7850k or even the 5800k will get you significantly better performance and you don't have to use just the APU for games you can add something like an R7 265 or R9 270x and you will then have a system comparable to an FX 6300 system. Somewhat slower but not much.


If you think a higher end AMD APU can't game with a video card here is proof.


6800K_


https://www.youtube.com/watch?v=1przkgOBdnc


https://www.youtube.com/watch?v=9jz66qb4MjE


https://www.youtube.com/watch?v=TO5psNX4Fcg




5800k


https://www.youtube.com/watch?v=o1Wj0phnUq0


https://www.youtube.com/watch?v=DFkHGY9Ugkg






here is the 750k (APU design but without the APU-IGPU)


https://www.youtube.com/watch?v=fn-thZJh1Ug


760k Here


https://www.youtube.com/watch?v=hiyy4BaM4qc


750k HD 7950


https://www.youtube.com/watch?v=sP5W2tvKtGc



















You get the point ...




If it were me I would add a 6800k and an R7 270x along with a new XFX 550W PSU that way you will not have to buy a new operating system and it will give you very nice gaming for a few years or so while you save up for a nice Intel system.

 

Keep in mind I do agree about switching platforms to Intel if you really want premium gaming so in that regard I do agree with the Guys above! If you have the money to do it.

 

If you're on a budget - AMD FX8350 in an Asus A5M97 R2.0 Evo board will manage nicely and, according to cpubenchmark.net, will outperform the more expensive 4690K.

 

I love AMD but the I5 4690k will handily out perform the FX 8350 with a high end GPU, though at 1080p the FX 8350 will hold it's own in many game titles, and is certainly a nice budget alternative, as is the FX 6300, however with the OP's motherboard the 6800k is a drop-in that is a nice alternative as well.