Intel Centrino DDR2 Investigation
Continuing their investigation on mobile memory performance with linux, Phoronix is looking to see how various memory configurations effect the Pentium M's performance. Today they'll be testing DDR 2 PC2-4000 memory, ranging from 512MB to 2GB.
As usual, 2GB doesn't provide a substantial performance gain over 1GB. Unless you're constantly multitasking with memory intensive programs, encoding large audio or video files, or playing a lot of BF2 which enjoys the extra 1GB, having a full 2GB might not be necessary.