Kingmax, one of the most popular memory manufacturers in Australia and also one of the top memory manufacturers in the world had a small stand at this year's Computex. They were showcasing their DDR333/DDR400 TinyBGA solutions as well as their Micro-DIMM products and Compact Flash/Secure Digital card solutions.
Towards the front of their stand, Kingmax had identical DDR333 and DDR400 demo systems running on Pentium 4 2GHz processors. The purpose of these demos were to show you the performance difference between DDR333 and DDR400. The difference between the two is actually quite significant on a Pentium 4 based system because its 400MHz/533MHz front side bus can easily take advantage of DDR400's extra bandwidth. However, on an AMD Athlon/Duron system the performance difference is negligible because the memory is being held back by the Athlon's 266MHz front side bus.
In the near future Kingmax DDR400 modules will be hitting the market in both 256MB and 512MB flavours. Kingmax have some interesting changes planned for their future memory modules that we can't tell you about just yet, however, it will definitely be something to look out for.