What GPU and RAM should I get? - 1

I'm looking to buy a new GPU and more RAM, I want it to be under $100 for both the GPU and RAM and please don't count rebates.

Current Specs:
CPU: A10 5800k
GPU: AMD Radeon HD 7660D
RAM: Corsair Vengence 4GB 1600MHz

I mostly livestream minecraft but I'm probably going to start streaming COD: Ghosts and BF4.

I'm thinking about buying this GPU: http://www.newegg.com/...6814131488 but I want to know if I can get something better for under $100.

Added (1). Motherboard: MSI FM2-A55M-E33
Power Supply: Diablotek 600W

Added (2). I meant $100 for the GPU and another $100 for the RAM, also I will probably get the 7790 but I really want to upgrade my RAM so is this good? Http://www.newegg.com/Product/Product.aspx?Item=N82E16820148540

There's really no way you can upgrade your ram and your GPU for under 100 dollars. You could use the 100 dollars to upgrade your GPU, but even then it would be much better to just spend $120-140 on a much better GPU.
$100 dollars can get you 2158 score on Passmark,
http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+7770
While $130 dollars can get you +850 score on Passmark.
http://www.newegg.com/...6814121727
http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+7790
For comparison, this is the benchmark of your current card:
http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+7660D

Since you aren't restricted by your PSU, you might as well spend a little more to get that extra performance. And your ram is fine for general gaming, if you want more you'll have to spend a lot more than your $100 budget.