I mean, you said I should waste my money on a CPU upgrade that would make no difference in 1440p gaming. That's money I can't spend on a better GPU, which would make a difference in 1440p gaming.
You realize you're mentioning a 2600 right? Which will place a tremendous limit on 1440p gaming?
My suggestion over the included build is spending $10 more on the build and getting a 10600K.
Silicon Lottery has found 100% of 10600ks will do 4.7 Ghz sustained all core.
Even at that number it will easily out perform a 3600 in a meaningful way. Over 70% of them do 4.9 Ghz which where it starts to reach i9 levels of performance in gaming by the way...
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And the cherry on top over the 3600 is you can actually buy the i5 outside of Microcenter. Microcenter is the only place carrying the 3600 for $180... but they also have 10600k on perma-sale for $250.
Meanwhile outside of Microcenter the 3600 is rarer than hen's teeth while the 10600k is widely available at $270. I happen to have 5 microcenters within an hour or so of me, but most people don't have that luxury.
80 FPS - Ghost Recon: Breakpoint 1440p / Very High
78 FPS - Horizon Zero Dawn 1440p / Ultimate
72 FPS - Red Dead Redemption 2 1440p / High
115 FPS - Death Stranding 1440p / Very High
220 FPS - Doom Eternal 1440p / Ultra
124 FPS - Resident Evil 3 1440p / Max
75 FPS - Gears 5 1440p / Ultra
i7-10700k + RX 5700XT[2] (I couldn't find benchmarks for an i5-10600k with this GPU from the same source. The 10700k should be as good or better than the i5 though)
67 FPS - Ghost Recon: Breakpoint 1440p / Very High
73 FPS - Horizon Zero Dawn 1440p / Ultimate
70 FPS - Red Dead Redemption 2 1440p / High
111 FPS - Death Stranding 1440p / Very High
185 FPS - Doom Eternal 1440p / Ultra
104 FPS - Resident Evil 3 1440p / Max
77 FPS - Gears 5 1440p / Ultra
You can spot check the other numbers and find similar discrepancies...
Of course the reason I can't find a proper reviewer doing this exact setup is because the idea of buying a 2600 for a new build doesn't make any sense period...
Even the i3-10100 beats it in gaming, and that costs as little as $100...