I have been using BoinxTV and Mimolive for a while, using a 2013 Macbook Pro, 2.6GHz i7 16GB and Nvidia GT 750M 2GB. I use 2 camera sources with 2 Black Magic UltraStudio mini recorders to 2 thunderbolt and 1 computer source using Magewell XI100DUSB to a USB. I also have a Behringer Xenyx Q502USB for audio input. So far so good and I am able to record in 720p/30Hz with little to no drop frame. However when I up the resolution to 1080p or 60 Hz, it starts to drop frames and not very smooth in general, so I thought my notebook was not powerful enough to handle that.
Recently I saw the lowest end Mac Pro with 3.7Ghz Xeon E-5 and dual FirePro D300/2GB on sales (going to be discontinued), so I decided to give it a try. Unfortunately I still experience frame drops when I tried to record in 1080p. The performance monitor bar just keep shooting up occasionally and frames droppings, audio lagging and unstable. I was using simple composition of the 3 sources together using PIP layers. But even turned off that layer and show only 1 source, it still drop frame and just cannot keep up.
I remember I used to be able to record in 720P/60HZ in BoinxTV and earlier mimolive beta but after around 2.4 it just cannot handle it anymore. But since I upgraded it no longer working in that configuration.
So my question is, should I return my Mac Pro and keep using my macbook pro, or I was missing something that is needed to drive that workload? Any spec. recommendation for 3 input sources and 1080P recording?
Thanks in advance,