Ecky :
nVidia's GT720/730 would be equivalent to the iGPU, or maybe the newer GT1030. I agree with CountMike though, because a GT720 + 860K is almost twice as expensive as an equivalent A8 APU, and will also likely draw more power and make more noise.
Okay, is it overkill to pair it with GT 1030. I only need GPU strictly to display graphics on monitor. nothing fancy. Any radeon is okay for me. Do you have any reference for Radeon HD?
How about this one?
XFX Radeon HD 5450 1GB DDR3 HYPER MEMORY 2.8GB - ON-XFX1-PLS2 - Support Low Profile[Search] Rp 390,000
Is it better than Nvidia GT 710?
Colorful nVidia GT 710 1GB DDR3 - Grs 2 Thn[Search] Rp 375,000
the other reason to choose AMD is because the motherboard is cheaper, and buying something a few years back is cheaper for me. I believe when AMD release this processor, it was at the time when AMD do better than intel before Intel release Core i series.