I want to upgrade my living room HTPC to a gaming machine that is capable of playing modern games at 1080p on high settings. Current the HTPC cannot handle this task. I want to continue to use this as my HTPC so would like to keep power usage at a minimum and as quiet as possible when not gaming.
I would like to know which GPU would best suit my current setup without bottlenecking. I understand I may have to replace my PSU and case to accommodate the GPU but would like to keep cost below $300 if possible.
I don't mind replacing the case. I assumed I would need to do that anyway. I like this case http://www.newegg.com/Product/Product.aspx?Item=N82E168... and it seems would fit most GPU cards. I also don't mind spending more than $300. I just want to know what GPU would give me the most bang for my buck and work well with my CPU. Should I stick with AMD to compliment the AMD CPU or would Nvidia be the better option?
Sorry for the questions but I don't have a lot of experience in this field and am fearful I will buy a GPU that will not give me the best price/performance ratio or will over spend on a GPU that will be bottlenecked by my CPU.
That case is fine. Your cpu is fine as it it. You don;t have to follow brands and is pointless really. You may experience bottleneck with your cpu with a R9 270. I would consider going Intel for micro ATX or mini-ITX motherboards. There aren't really any good mini-iTX or microatx motherboards for AMD FX cpus. i5 4440 should be enough or even an i3 if you don't plan to game a lot.