terry4536 :
lanson.noah :
Since you already have a GTX 1070 you have no need for the 2400g. The 2400g is an APU which is basically a CPU and GPU combined.
I recommend that you go for the 1600 but if you can go for the newer and faster Ryzen 5 2600. It should be the same price if buying brand new and the socket and chipset on the motherboard is the exact same.
Thanks
Having the integrated graphics as a backup is a good thing. Using the integrated graphics is a standard step in troubleshooting a graphics card and or monitor. Plus if you have the multi-monitor option, you can use the integrated graphics to run a separate monitor.
It's not worth getting a 2400g solely for the purpose of troubleshooting, when you can buy a cheap video card for 10 dollars. You can also just buy a hdmi splitter to use alot of monitors. The 2400g is inferior in every single way and its graphics are that of a 1050's. The 1600 is the better buy, and don't get caught up in troubleshooting when you will probably never have to mate. Good luck with your build.