Question / Help 3 cameras FHD + grabber - NO GAMING! - What computer?

[Doman]

Im streaming videos from 2xlogitech C525(sides) and 1x camera Microsoft LifeCam Studio on HP Compaq 6005 pro SFF with 4 core AMD processor, 4 gigs ram and some intel onboard card. Im using 3000kb/s whith 720p setting on youtube so this gives me picture as below

https://www.youtube.com/watch?v=x5yOCAsElN0

all 4 cores are on 90% minimum, when i play advertisement (Mitsubishi) picture gets hiccups and all cores stay 100% constantly.


But now im facing different challenge. I have to choose parts for computer with grabber + 3 Sony HDR-PJ810 full HD cameras. I tried to use one camera on some computer with Intel G6xx processor 4gigs ram but 1080p was unwatchable.

So ...
I need to know what kind parts should take, i7 is obvious but do i need a lot of ram or choose less but with higher frequencies and lower timings? What to look for in GPU - high clocks? more memory? wider bus? Should i stay with one grabber or its neccesary to take 3 to separate each camera? What mainboard?
As for internet i dont worry because we have true 30mb/s

Computer need to handle FHD from 3 sources, showing some videos and browser with many tabs, streaming and wirting backup on the disk simoultaneusly.

 

[Doman]

Bump

Noone knows?

 

[Doman]

Guys please, if nobody knows then at least give some examples of places where i can find such informations

 

[CritVV]

Start with at least an i7 3770k, then you're good. You will most likely be good with 4 - 8 GB DDR3 RAM, timings and speed don't matter that much, just take some decent 1600 Mhz DDR3 8 GB from a known company and make sure it's compatible with your motherboard. For streaming, GPU's also aren't THAT important, you'd be good with a GTX 750, maybe a slightly bit higher. I'm not a real computer expert, although I build them myself, but I'm sure more people will be able to help you out.