Stefan Mileschin

This week Crucial is introducing its first DDR4 SO-DIMMs for enthusiasts, designed for high-performance notebooks and small form-factor PCs. The Crucial Ballistix Sport LT PC4-19200 SO-DIMMs are available in 4 GB, 8 GB and 16 GB capacities and can operate at DDR4-2400 with 16 16-16 timings with 1.2 volts. The modules feature SPD with XMP 2.0 profiles for devices that support XMP.

PC makers focusing on Intel enthusiast mobile parts usually ship their computers with DDR4-2133 memory modules, as per the JEDEC standard and the supported standard on the chips, and provides a peak 34.1 GB/s bandwidth when operating in dual-channel mode. By contrast, a pair of DDR4-2400 SO-DIMMs enables 38.4 GB/s of bandwidth, or 12.6% higher, which could provide a noteworthy performance improvement in applications that demand memory bandwidth (e.g., graphics applications). At the same time, the binned 2400 MT/s data rate and 1.2 volts modules with additional heatsinks are geared to maintain temperature equilibrium similar to the base frequency modules. In short, it should be relatively safe to use such modules even in highly-integrated systems with moderate cooling.

http://www.anandtech.com/show/10331/...r42400-sodimms