My i5-6600k at home can handle ~15k requests per second for a toy social media app with postgresql assembling the xml to send to the client (though I've done some batching optimization and used rust for my application server to hit that). Passmark cpubenchmark suggests a 13900 should be 6-8x more capable than that.

So it should be able to handle somewhere in the ballpark of 2,000,000x the required load, or maybe 100,000x without the application level optimization.

(TLS reduces this by a factor of ~10 if you're doing handshakes each time. Despite what blogs claim, as far as I can tell, if your CPU doesn't have QAT, TLS is very expensive)