As CasualClick said, try it for $1
I also have an i7 4790@4Ghz 16GB- a GTX980Ti is the only difference. All my settings are High rather than ultra and I’m certainly not disappointed - quite the opposite. I was quite prepared and able to buy a new computer - but I’ve not bothered basically because the improvement in performance of the sim over my 10 years of FSX experience has been nothing short of stunning. It’s smoooth, no stutters, no holding your breath for 3 seconds 10 feet above the runway waiting for the next frame.
Updates - yes can be a trial, and as a livery painter thats had to update my repaints after a patch more than once I could be on the grumpy side too, it’s a kinda 2 steps forward, one back sort of thing - more good than bad though.
Why are updates mandatory? - this sim is a 2 way street - so much is real time access to the ‘big back end at the other end of the internet’ the scenery, weather, traffic etc is all real time communication with MS servers - for which we need very coordinated clients and servers.
The only reason I’d have for NOT buying MFS would be ‘I only fly tubeliners’ (and I used to do just that) P3d and XPlane with high end payware AC do still do that better. But the challenge of flying low and slow in the mountains and weather of PNG has made me totally phlegmatic about how long PMDG take to finish the 737. GA is what MFS does best and is indeed a quantum better than what we’ve had until now so why haven’t you bought it ?