Which characteristic describes DDR3 SDRAM (Synchronous dynamic random-access memory)?

Which characteristic describes DDR3 SDRAM (Synchronous dynamic random-access memory)?

• A. Chips that run at clock speeds of 640 MHz and have a connector with 184 pins
• B. Chips that run at clock speeds of 800 MHz and have a connector with 240 pins
• C. Chips that run at clock speeds of 1333 MHz and have a connector with 200 pins
• D. Chips that operate at speeds of 1600 MHz and have a connector with 288 pins

Answer: (B)

DDR3 SDRAM, or Double Data Rate 3 Synchronous Dynamic Random-Access Memory, is designed to deliver higher speeds and increased bandwidth compared to its predecessors. The defining characteristics of DDR3 include its clock speeds and the number of pins on the module. Generally, DDR3 operates at speeds starting from around 800 MHz and can go up to 2133 MHz, achieving effective speeds through double data rate operations. The standard configuration for DDR3 memory modules incorporates 240 pins, which aligns with the specifications of this memory type. This pin count is crucial for ensuring compatibility with the respective motherboards designed for DDR3, as different generations of DDR use different pin configurations. Thus, the correct answer accurately reflects that DDR3 SDRAM chips can run at speeds of 800 MHz and possess a connector with 240 pins, placing it within its defined specifications in the realm of computer memory technology. Other values or configurations presented in the other options do not align with DDR3's established characteristics. For instance, 200-pin configurations apply more to DDR2 models, while the speeds above 800 MHz would refer to later DDR3 versions but are not initial characteristics defining the DDR3 standard itself.

DDR3 SDRAM, or Double Data Rate 3 Synchronous Dynamic Random-Access Memory, is designed to deliver higher speeds and increased bandwidth compared to its predecessors. The defining characteristics of DDR3 include its clock speeds and the number of pins on the module.

Generally, DDR3 operates at speeds starting from around 800 MHz and can go up to 2133 MHz, achieving effective speeds through double data rate operations. The standard configuration for DDR3 memory modules incorporates 240 pins, which aligns with the specifications of this memory type. This pin count is crucial for ensuring compatibility with the respective motherboards designed for DDR3, as different generations of DDR use different pin configurations.

Thus, the correct answer accurately reflects that DDR3 SDRAM chips can run at speeds of 800 MHz and possess a connector with 240 pins, placing it within its defined specifications in the realm of computer memory technology. Other values or configurations presented in the other options do not align with DDR3's established characteristics. For instance, 200-pin configurations apply more to DDR2 models, while the speeds above 800 MHz would refer to later DDR3 versions but are not initial characteristics defining the DDR3 standard itself.