Explained RAM 8G8 2R8 PC3L – 1200 -11- 13- F3
8G8 (Capacity & Organization)
This indicates the memory density and the bit-width of each individual memory chip. The 8G means the module is an 8 Gigabyte capacity. The trailing 8 signifies the module is built using x8 memory chips (meaning each chip provides 8 bits of data width).
2R8 (Rank Structure)
This tells you how the physical memory chips are organized into logical “ranks.”
· 2R: This stands for Dual Rank. It means the module has two sets of memory chips that the system can access. Dual-rank modules often provide slightly better performance than single-rank, but may be slightly less compatible in some older systems.
· 8: This number is the product of the rank count and the chip bit-width (2 ranks x 8 bits). It is a standard designator ensuring the module totals a 64-bit interface width.
PC3L-1200 (Speed & Voltage)
· PC3: Identifies this as DDR3 SDRAM technology.
· L: This is the critical distinction for voltage. L stands for Low Voltage. These modules run at 1.35V (or 1.5V in some compatibility modes) rather than the standard 1.5V, making them common in laptops and servers where power efficiency matters.
· 1200: This represents the module’s bandwidth rating in MB/s. To find the clock speed, you divide this number by 8. So, 1200 / 8 = 1500 MHz (often referred to as 1500 MT/s).