QLC Hits the Storage Sweet Spot: Flash Performance That Won't Break the Bank
Hitachi Vantara, July 7,2025
As data generation and innovation continue to explode across industries worldwide, demand for high-capacity, cost-effective data storage has never been greater. Enter QLC (quad-level cell) flash storage - a compelling infrastructure option for IT organizations supporting hybrid cloud environments looking to balance performance, capacity and cost.
QLC is differentiated from other types of flash memory because it stores four bits (hence the 'quad') per cell. That's up to 33% more capacity per cell vs. TLC (triple-level cell) technology, which stores three bits per cell. And so forth for SLC (single-level/one bit) and MLC (multi-level, or two bits per cell).
By storing more in the same physical space, QLC flash significantly increases storage density, providing users the benefit of higher-capacity drives at lower costs per gigabyte (GB). This makes them ideal for budget conscious deployments, or applications where space, cost and/or energy efficiency are critical.