It will be a question of "enough" performance and pricing. Also good as these are GPUs remain better performers.
As HD7750 prices drop Pentium/video card has an appeal.
built: A6 5400 = fine
B75 Motherboards are about $75, if you do not require USB3 H61 start around $50, H77 are very good
at the moment newegg motherboard/ram combination deal appeal (high price of...
Lowest price A75 board seems to be MSI
http://www.amazon.com/MSI-Socket-MicroATX-Motherboard-FM2-A75MA-E35/dp/B009HP42HQ/ref=sr_1_1?ie=UTF8&qid=1368883577&sr=8-1&keywords=msi+a75ma-e35
Best deal is probably newegg motherboard/8 GB...
Only ZM400-LE review, could not source capacitors on board
http://translate.google.com/translate?depth=1&hl=es&rurl=translate.google.com&sl=auto&tl=en&u=http://www.easycom.com.ua/power/zalman_zm400-le/%3Flang%3Dru
Depends on user intent.
APUs are a good low cost option IF the on chip graphics satisfy requirements.
Intel is a good low cost option IF the on chip graphics satisfy your requirements.
A10 5800 is top of the line.
If you want more...