This is a question that is constantly changing answers. See you local computer shop for the latest information
In certain applications, the overall speed may be dependent on the RAM. If you have a fast CPU but very little RAM then your performance will be slowed.
cache
DRAM
clock speed
Max it out!!! The CPU can only be as fast as it's cache size and than it's memory.
graphic card
CPU front side bus RAM clock rate
Ram & rom
RAM speed varies based on both the CPU's internal design, microarchitecture, front side bus speed, and chipset.
known as cache, it is embedded in the CPU on all modern chips (CPU's). the CPU RAM, or Cache, is a small amount (less than 50Kb) of very high speed ram. L1 and L2 cache is embedded in new CPU's so that the CPU can work out multiple parts of code, so that less fetch-process-verify-send procedures are made with the system ram, of which holds the whole program.
RAM can be part of the CPU.
Yes it will 1333mhz is the bus speed of the CPU, however the RAM speed is DDR 2 1066 which means 1066 x 2 bandwidth making it 2132 which is higher bandwidth than the CPU anyway.