The prevailing recommendation here on this forum is to build a new system around the Haswell E platform....at least the 5930K,or, the 5960X, if you can afford it. The extra cores make a huge difference under the heavier duty that is being imposed by 4K source material when editing.
Below is a general comparison between the Haswell E CPU and your proposed 6700...you can easily see the huge difference in performance when the CPUs are stressed with various intensive tasks :
I am well aware that 6-core i7s are much better, but at the same time as much over my budget.
At some point I was trying to complete my build with i7-5820k with MSI X99A, but I failed to keep the costs acceptable as I'd have to skip on e.g. a decent GPU to make it work financially (for a year or so) and just get some "no-cost" unit, just to let me use my display - not sure if this would be an appropriate approach. Do you think it is worth considering?
Wouldn't it cause an "avalanche" of additional costs needed to let such processor reach its full potential (more/better RAM, HDDs/SSDs, GPU)? If so, It would mean exceeding my budget even more.
So while I am curious to hear any ideas to make my setup better, they'd need to keep the total cost close to what I listed in my first post.
At the same time, I am still waiting for any suggestions as for the GPU and PSU, that would match the setup proposed initially.
A 960GTX 4GB card should be enough for that system.
Thanks for your suggestion, Eric - I have been actually considering a GTX 960 or 770.
What are your views on a power supply to make my setup work with one of these GPUs?
From some online calculators I got a power sum of more than 500W. Not sure how accurate this is.
What are your recommendations as for the needed power? Any particular brands/models that you could suggest?
I don't think I need a model with modular cabling (there is plenty of room in my case to hide all the possible excess).
You want a 600W PSU or higher with that platform and either card.