Behind The Silicon Curtain: Exclusive Test Of The P4/2666 With 533 MHz Rambus

Breaking In At Intel: P4/2666 With 533 MHz Rambus, Continued

The goal is clear: more bandwidth for the Pentium 4, which, at the higher speeds, doesn't perform very well with DDR SDRAM. And 400 MHz Rambus memory hits its limit at 3.2 GB/s, even with its dual-channel technology. In any case, increasing the memory clock to 533 MHz takes this same technology to 4.2 GB/s.

RDRAM module from Samsung for 533 MHz (PC1066 specification).

The label on a 533 MHz RDRAM module (Samsung).