I'm getting the 3700X for my productivity-aimed machine. However, my uncle asked me to build a computer for him too - its main task is Microsoft Flight Simulator 2020 which is coming out (he's a pilot, and uses this software to train). But he'll also do some productivity stuff, tho not much. The thing is we can get the 9900 for ~$220 (50% off) through our uncle who works for Intel. I'm not sure which one I should pick for him - the 3700X or the 9900 (non-K, remember)? Factoring in the motherboard and the cooler, both will end up costing about the same (after Inte's discount). Thanks.