Sigh, the lack of knowledge on these things is exactly what Intel targets in marketing and what forces AMD to use a rating system. "-1GB RBus Memory with 1600 GHz dual channel (RBus is damn fast than DDR but expensive) will upgrade to 2GB for faster 3200 GHz and more room for XFrog plants." There is no such thing as 1600Ghz Dual Channel RDRAM (or 1.6Ghz for that matter) and you cant "upgrade" to 3200Ghz. The highest RDRAM out is PC1066, and you will never be able to upgrade yours to any higher because your chipset will never support anything higher (I wonder if your current chipset even really uses PC1066). Sticking faster RAM in a chipset that cant run the bus speed needed to utilize it is like putting a ferrari body on a Yugo. Anyway, what matters with RAM is the bandwidth throughput it can achieve. Without calculating overhead, latency, etc, a Dual Channel PC1066 RDRAM chipset can offer slightly over 4GB memory bandwidth. Intel's new Dual Channel DDR400 chipset is at 6.4GB. Not only that, but 2 512MB sticks of PC3200 DDR will cost you less than half the price of the same amount of RDRAM. This is why Intel switched to DDR. "DDR is very cheap just like AMD and u get ripped off for some area inside processor that are extrmely slow." There's a reason a 2.2Ghz Athlon performs as fast as a 3Ghz P4 in just about everything.. That reason is because AMD's CPUs are the exact opposite of what you just said. :) Both companies make excellent chips.