G450 was adapted to use a DDR SDRAM memory interface, instead of the older single data rate (SDR) SGRAM and SDRAM used on G400. By doing this they were able to switch to a 64-bit memory bus and use the DDR memory to equal the previous memory bandwidth by clocking the RAM again at 166 MHz. A 64-bit bus reduces the board's complexity (and cost) because fewer traces have to be used, and potentially the pin-count of the graphics processor can be significantly reduced if the chip is designed only for a 64-bit bus. However, DDR has a higher inherent latency than SDR given the same bandwidth, so performance dropped somewhat.