Jumping in here to second what was said about the i7. If youre gaming at 4K, the GPU is really the bottleneck anyway, so spending the extra $150 on the i9 is just burning money for no reason. Honestly, Intel Core i7-14700K 20-Core 5.6GHz LGA1700 is the absolute sweet spot for a high-end build right now. You get those extra E-cores over the previous gen which helps with background tasks while gaming. To handle the stability and heat concerns you mentioned, my advice is to look into your BIOS settings immediately. Most high-end boards push way too much voltage by default. Setting a 253W power limit (PL1/PL2) makes a massive difference in temps without losing frames. Also, dont skimp on the cooling for these chips. I usually suggest something like the ARCTIC Liquid Freezer III 360 AIO Liquid CPU Cooler to keep things stable. It basically solves the thermal throttling issues people complain about.

Honestly, if you want to save some cash and avoid the headache, go with the Intel Core i7-14700K 20-Core 5.6GHz LGA1700 Processor. The i9 is basically a space heater and way more expensive for very little gaming gain at 4K. Ive seen too many stability issues with the i9 lately, so the i7 is the safer, more budget-friendly bet for your build.

I totally see the point about the i7, but honestly, if stability and power draw are your big concerns, I would just go with AMD this time around. Any of their top-tier gaming chips with the extra cache are gonna be way more efficient for a 4K rig. You will get better gaming performance without the crazy heat. Team Red is basically the smart move for high-end builds right now.

So it sounds like the consensus is the i7 is the smarter, safer play to avoid those i9 stability headaches. Totally agree that at 4K you wont see much difference anyway. Just to clarify tho, are you strictly gaming or doing heavy productivity work too? Also, have you checked if the motherboard youre eyeing has the latest microcode updates for these chips yet?