SODIMM

SODIMM - smaller than a conventional DIMM. A type of computer memory often found associated with laptop computers. SO-DIMMs are often used in systems that have limited space, which include laptops, notebooks, small-footprint personal computers such as those based on Mini-ITX motherboards, high-end upgradable office printers, and networking hardware such as routers and NAS devices.

2GB 1Rx16 PC3L - 12800S - 11 - 13 - C3 timing 11 CL Latency 13

The first 11 is the CAS timing. The second 11 or 12 is the version of Serial Presence Detect (SPD) used for communication between the RAM module and the computer. The B3 or B4 is the reference design file used for this design and Revision number of the reference design used.

The CAS timing is what matters. zysingerNov 13, 2017, 10:45 AM The first 11 is the CAS timing. The second 11/12 is the version of Serial Presence Detect (SPD) used for communication between the RAM module and the computer. The B3/B4 is the reference design file used for this design and Revision number of the reference design used.

The CAS timing is what matters. The lower the number the fewer clock cycles it takes so in effect its faster. In this case, they would perform identically, although the B4 is technically a newer version.