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I will so trade you my 4790K, board and RAM for your i9, board and RAM.
[ Video yes, photography not now and probably not anytime soon. I have a 20 core machine, all cores at 3.5Ghz and a 6 core 8600k @ 5.1Ghz. I use, Lightroom, Photoshop and DXO Photolab and for the most CPU taxing thing I do which is in DXO the 8600k is 78% faster.