There are several types of RAM (Random Access Memory), ie, FPM RAM, EDO RAM,SDRAM, DDR and Rambus RAM. If perhaps you do not understand the type of RAM,then maybe you can read this article.
Fast Page Mode DRAM DRAM is the most old model. Problems often arise from FPMDRAM is a slow transfer speed that is 50MHz maximum.
EDO RAM can provide system performance 50% faster than DRAM. EDO RAM is the same as FPM DRAM, with some cache built into the chip. Like FPM DRAM, EDO RAMhas a maximum speed of 50MHz EDO RAM L2 Cache uga should need to makeeverything run faster, but if the user does not have it, then EDO RAM will run muchslower.
Almost all systems use voltage 3.3 volt, 168-pin DIMM SDRAM this. SDRAM is not anextension of a long series of EDO RAM, but it is a new type of DRAM. SDRAM startedwalking with a transfer speed of 66MHz, while page mode DRAM and EDO longer willrun at a maximum of 50MHz. Current SDRAM running at 133MHz can (PC133), andshot up to 180MHz or higher. To speed up performance of processors, the newgeneration RAM such as DDR and RDRAM are usually able to support better performance.
DDR has basically doubled the transfer speed than SDRAM. DDR will operate at333MHz, with the actual operation of 166MHz * 2 (aka PC333 / PC2700) or 133MHz * 2(PC266 / PC2100). DDR RAM is also compatible with SDRAM physically, but uses thesame parallel bus, making it easier implemnetasi than RDRAM, which is a differenttechnology.
Besides the price is quite expensive, Intel gives RDRAM for consumers, and is the right choice for Intel Pentium 4 memory. RDRAM is a serial memory technology that comeswith three options, ie, PC600, PC700, and PC800. PC800 RDRAM is designed withdouble the maximum transfer speed than PC100 SDRAM, but have high latency.RDRAM has a multi-channel, such as the Pentium 4 motherboards, which can offer the best memory function, especially when paired with PC1066 RDRAM memory. (h_n)
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