What is the difference between SDRAM and RDRAM?

Answer 1

SDRAM and DDR RAM are memory integrated circuits used in computers. The difference between the two is the speed because SDRAM is a single data rate which is slower than DDR RAM that stands for the double data rate. Which means the chip reads or writes two words of data per clock cycle.

Answer 2

RDRAM (Rambus dynamic random access memory) and SDRAM (synchronous dynamic random access memory) are two different types of memory technology. RDRAM is newer and in some cases faster, but SDRAM is less expensive.

The most important thing to know is that you cannot use RDRAM in a system designed for SDRAM or vice versa. The two types of modules are different sizes and shapes, so they won't even fit into the same memory slots. You should buy whichever memory type was designed for your system. Answer: RDRAM stands for Rambus Dynamic Random Access Memory. SDRAM stands for Synchronous Dynamic Random Access Memory. The two memories are completely different memory technologies and are not compatible with each other. RDRAM is a unique design developed by a company called Rambus, Inc. RDRAM is extremely fast and uses a narrow, high-bandwidth "channel" to transmit data at speeds much faster than SDRAM.

Answer 3

DDR standards for "Double Data Rate". DDR can transfer data on both the rising and falling edge of the clock signal, whereas standard SD ram can onle transfer data on one or the other. This means data throughput on DDR memory is twice as fast, hence the name "Double Data Rate". Also, they are physically different: A DDR modules has one notch on the contact strip, SD modules have two. i donot know SDRAM comes in 100MHz and in 133MHz where as DDR comes in 266MHz, so DDR has double speed as comapred to SDRAM. SDRAM has 2 notches and DDR has only 1 notch.*and it is small in size

Answer 4

== == DDR stands for "Double Data Rate." This means that each time your computer gets data, it gets it on the upcycle of the clock as well as the downcycle of the clock. So it is catching double the data than before -- which means it can process twice as fast. SDRAM stands for "Synchronous Ram." The RAM is synchronized with the clock cycle and grabs a chunk of data each clock cycle so it is synchronous. Notice that it does not grab two chunks as does the DDR. So the DDR is twice as fast.

Answer 5

Unlike the traditional DRAM, which is asynchronous, the SDRAM exchanges data with the processor synchronized to an external clock signal and running at the full speed of the processor/memory bus without imposing wait states.

Answer 6

sdr means single data rate & ddr means double data rate