Just FYI, but no mention was made of GAMING.
The i5-4460's iGPU is okay for very light gaming. If gaming isn't needed, then there is likely no reason to consider an addon GPU at all. (and as said the Radeon was a step down in every way).
Other:
*Please note the iGPU requires you choose the amount of VRAM to allocate (from your system memory sticks) from the motherboard's BIOS (i.e. "DEL" on bootup etc). For non-gaming, I'd just leave it at 256MB. For gaming I'd put it at 1024MB.