OCPC DDR5 laptop RAM brings major upgrades: much faster speeds (starting at 4800MT/s vs DDR4's 3200), better efficiency with lower 1.1V power, dual independent 32-bit channels for improved bandwidth, and larger capacities (up to 128GB/module) with higher density chips, all enhancing multitasking, demanding apps, and overall system performance while keeping heat down, despite potentially slightly higher initial latency than fast DDR4.