wait sorry, wats the difference between a 2GB kit (1GBx2), Ballistix 240-pin DIMM, DDR2 PC2-6400 memory module, and Crucial Ballistix Tracer PC2-6400 2GB 2X1GB DDR2-800 CL4-4-4-12 240PIN Dual Channel Kit W/ LEDs...does one work better than the other?