Explanation & Hint:
- DDR SDRAM (Double Data Rate Synchronous Dynamic RAM) typically refers to the original DDR memory, which has been superseded by newer generations. It generally has a 184-pin connector for DIMMs and operates at 2.5 volts.
- DDR2 SDRAM improves upon the original DDR by using less power and providing higher speeds. It typically comes with a 240-pin connector and operates at 1.8 volts.
- DDR3 SDRAM further improves upon DDR2 with even higher speed and lower power consumption. It also has a 240-pin connector but operates at 1.5 volts.
- GDDR SDRAM (Graphics Double Data Rate SDRAM) is often used in graphics cards. It is optimized for high bandwidth and is not typically used for general-purpose computing in PCs.
- DDR4 SDRAM is the most recent generation of DDR memory. It has a 288-pin connector and includes features like improved data rates, increased transfer rates, and more efficient power consumption compared to DDR3. It operates at a lower voltage of 1.2 volts but can also be found in variants that use 1.35 volts for low-power operations.
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