Thanks final questions-yes, APUs video and processing power is somewhat related with RAM.
There are GPU's like Gt 610 which are obsolete now. your best option is GT 710 , I used MSI GT 710 2GB (passive cooled) like 3years back and it served the purpose, my usage was same like your requirements now.
Passive cooling is the one without a fan (Heatsink only), it is suggested for a HTPC where silent card is required.
active cooled will get you some degrees less temps and a few more fps in games but as you are not planning to game active cooling isn't much important unless your system runs hot.
this was the card I bought in july 2016 MSI GT 710
1. Since the 2200g has 4 threads and 4 cores and the box says 3 (generation ?) does it mean it is equivalent to the i3 processor and the r5 which has 6 cores and 12 threads and the box says 5 (again generation?) = i5?
2. Out of both these options the 2200g and R5+710, which will get "slower" with time? When I say slower I mean with windows updates, new softwares, better quality videos etc. Do both these options support cloud gaming like GeForce Now?
3. The price of the 710 as per your link is around 3000 with 3 year warranty. Zotac is giving 3+2 but it's around 250 bucks expensive. Reasonable to spend that money for the extra warranty?
4. In the last reply you said that a gpu can be upgraded later on with the R5. We can upgrade gpu with a 2200G also, right?
Looking for cheaper rates on the 710 now. All the cheaper one's are oos on md computers, primeagb. Amazon and Flipkart have almost similar prices.