How would one properly build for highest FPS but for on Low Graphics settings?

[Otto_iii]

So i have always been a bigger proponent of Frame rates over looks, i grew up just early enough to start out on CRTs and even if the frames were low back in the 90s the smoothness and fluidity sticks in my memory.  While watching all the new Benchmarks i kept thinking "How would this all turn out if every game was ran at 1080p to 1440p, but with lowest or near lowest settings."  Specifically more important then top frame-rate is keeping minimum frame-times as high as possible, as the fluxuation of frame-times warping effect is more of a immersion breaker to me then say low textures, model detail etc.  My presumption is such build would likely be reliant on the CPU rather then GPU but thought i should ask more knowledgeable folks. 

Theoretically I'd be interested in builds at about  700-800$ price point, and also high end builds closer to 1200-1400$ish. 
This is cost not including the Monitor or any peripherals! 
For sake of this build though lets say said system is being built for a 240hz monitor, smoothest gameplay possible, albeit on moderate resolution and low detail settings, with a keen eye on keeping 1% lows as high as possible/frametime as consistent as possible.  

My basic thought was a $700-800 Build would be Midrange Ryzen 3 AMD CPU, $1200-1400 would likely be Top end Intel CPU

Im not planning on upgrading at the moment, this is more of a fun theoretical, but due to the price war thats happening with AMD, Intel, and Nvidea, ive been thinking a lot about this but haven't really seen benchmarks showing results with very low detail in wide array of games.   I'm currently a budget gamer on a $200 Viewsonic 24" 144hz monitor, a $200 used Dell Optiplex (i3-3570 duel channel 8gb 1600hz DDR3), with a 200ish$ 1050ti+PSU.  It holds me over pretty well, playing older or better optimized titles at 120-160FPS, stuff like Apex and PUBG at 60-110fps.  As you can probably guess from my current build i spent about $200 leftover money every month or so to buy a new item, but now that i finally have a passable gaming rig im wondering about the next step if i saved up spare cash for a few months.

[Dedayog]

Im not planning on upgrading at the moment, this is more of a fun theoretical,"

 

They frown on theory builds in the New Builds forum, and if you want to jaw about this... toss it up in General Discussion for some theory crafting fun.

[Otto_iii]

Sorry about that new here, if a mod wants to delete the thread thats fine with me, ill chuck one up over there later. 

[Dedayog]

Just Report the first post and ask them to move it, they'll do it usually.