What is TLC on SSD's?

Solution
It's the memory chips on the PCB, you can get all different kinds. You can get TLC, MLA, MLC and probably plenty of others.

http://lifehacker.com/5932009/the-complete-guide-to-solid-state-drives

TLC flash (triple level cell flash) is a type of solid-state NAND flash memory that stores three bits of data per cell of flash media. TLC flash is less expensive than single-level cell (SLC) and multi-level cell (MLC) solid-state flash memory, which makes it appealing for consumer devices that use solid-state storage.

spat55

Distinguished
It's the memory chips on the PCB, you can get all different kinds. You can get TLC, MLA, MLC and probably plenty of others.

http://lifehacker.com/5932009/the-complete-guide-to-solid-state-drives

TLC flash (triple level cell flash) is a type of solid-state NAND flash memory that stores three bits of data per cell of flash media. TLC flash is less expensive than single-level cell (SLC) and multi-level cell (MLC) solid-state flash memory, which makes it appealing for consumer devices that use solid-state storage.
 
Solution
TLC (triple layer) vs MLC (multi-layer cell, 2 bits per cell) is typically:

-Less endurant (less writes before it "wears out").
-Slower.

However, in everyday use cases like a typical SATA consumer-grade drive would be put through, the drive manufacturers have optimized most TLC drives so well that these are a moot point. Endurance will be still longer than you'll probably own/use the drive every day.

My 850 Evo (TLC) and Crucial MX100 (MLC) will trade most blows in benchmarks, with the 850 Evo seeming very slightly faster in every day use.