COMPTIA A+ Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 525

DDR3 memory runs at what speed relative to the motherboard bus speed?

2x

3x

4x

DDR3 memory runs at 4 times the speed of the motherboard bus speed. This is because DDR stands for "double data rate", meaning it transfers data twice per clock cycle. So even though both the memory and motherboard bus have the same clock speed, the DDR3 memory can transfer four times as much data per clock cycle, making it effectively 4 times faster. Therefore, options A, B, and D (which are all less than 4x) are incorrect.

Get further explanation with Examzify DeepDiveBeta

5x

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy