I was looking over some of the high performance DDR4 memory kits available and found some from DDR4 4400 to DDR4 5000. Are there any CPU-motherboard combos that can actually run RAM at speeds of 4400+?
Yes, for example a proper Z390 board with a Coffee Lake 9xxx CPU can do it but most of those kits force seriously high and often even dangerous IO/SA voltages and aren't always healthy for the CPU.
Then again, just find a cheaper 3xxxMhz kit with Samsung B-Die chips (like a 3200CL14 kit) and just overclock it manually to 4200+. Most if not all B-Die kits can manage those speeds pretty easily and basically all 4400-5000 kits use B-Die anyway..
-Crashed: (not my fault ) '94 Nissan 100NX GA16DE (a.k.a. NX1600). Renault Laguna Phase I facelift '99 1.6 K4M. (Broke a strut and smacked a tree).
-Sold: '00 Nissan Primera P11-144 QG18DE, '97 Honda Prelude F20A4, 03 Ignis Sport.
-Current daily: '07 Ford Focus 1.6 Futura.
-Current funcars: '03 Peugeot 206CC 2.0 RFN fully riced and tuned (Turbo coming soon)