What Is the Difference Between Gear 1 vs. Gear 2 DDR4 Memory Speeds?

Need to understand the difference between Gear 1 vs Gear 2 DDR4 memory speed support for 11th Generation Intel® Core™ Desktop Processors

• Gear 1 means processor memory controller and memory speed are equal.
• Gear 2 means processor memory controller operates at half the memory speed (such as CPU memory controller is at 1600MHz while memory speed is at 3200MHz when operating as Gear 2).
• For DDR4-2933 (or lower speed) :
  • All the 11th Gen Intel Core Processors  operate in Gear 1, no Gear 2.
• For DDR4-3200:
  • i9-11900K and i9-11900KF operate in Gear 1.
  • The rest of the 11th Gen Intel Core Processors can operate in Gear 2.