New memory for the GeForce 4 MX 420
Among the hardcore gamers, the GeForce 4 MX 420, the worst model in the entire GeForce 4 MX range, is better known as an L card. The L stands for loser. Probably nVidia will replace the SD-RAM with DDR-RAM in the future.
The main reason for this is that a 256 MBit SD-RAM memory module is currently 50 US cents more expensive than the DDR version. You could almost think that the newer cards will be faster than the older ones. Unfortunately there is a catch. As was the case with the GeForce 2 MX cards from Creative Labs, the memory connection will only be 64 bits wide. Theoretically, 64-bit DDR-RAM, which is twice as fast, should be as fast as 128-bit SD-RAM. In practice, as you can see with the GeForce 2 MX from Creative mentioned above, the DDR solution is usually a little slower than the one with full SD-RAM. The card manufacturers will be pleased that they can now print '64 Mbyte DDR-RAM' in large letters on the cardboard boxes. Because if you are badly informed, you are more likely to use a DDR than an SD version.