Which of the following is a characteristic of SDRAM?

The characteristic of SDRAM that is most accurate is that it synchronizes with the system clock. This synchronization allows SDRAM to perform operations in tandem with the CPU clock cycle, making it more efficient than asynchronous memory types. By operating in sync with the system clock, SDRAM can process data more effectively, leading to improved overall performance and speed.

In contrast to other types of DRAM, SDRAM can queue and execute multiple operations at once due to its synchronized nature, which enhances the data throughput and helps in providing a smoother user experience, especially when running applications that require quick data access.

The other characteristics mentioned do not accurately describe SDRAM. For instance, SDRAM operates faster than traditional DRAM because of its ability to synchronize with the CPU, which is critical in modern computing environments. Additionally, all types of DRAM, including SDRAM, typically require refreshing to maintain data integrity, as they store data in capacitors that can leak over time.