Found these two articles by chance while searching for any CPUs where Intel may have "hidden" eDRAM.
Broadwell Revisit Pt. 1: Do games like eDRAM? - VP Tech Refresh
How does Broadwell hold up in 2021, and how does it compare to Haswell? Many folks still run Haswell-era systems; is it worth it to bump up to Broadwell?
vprefresh.com
Broadwell Revisit Pt 2: Now with Faster RAM - VP Tech Refresh
Retesting Broadwell against other CPUs using faster RAM across the board. Is Broadwell still "good enough" for gaming in 2022?
vprefresh.com
2015 CPU managing to be only 9% slower at 1080p than a 2021 CPU.
And there's a faster 1285 V4 CPU that they didn't test!
*poof*
My mind in pieces all over the place!