ARM Architecture - Bus Architecture
What is the typical effect on system performance when the bus width is increased while keeping the clock speed constant?
What is the typical effect on system performance when the bus width is increased while keeping the clock speed constant?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze bus width impact
Increasing bus width allows more bits to be transferred in each clock cycle.Step 2: Consider clock speed constant
Since clock speed is unchanged, the number of cycles per second remains the same.Final Answer:
Data transfer rate increases due to more bits sent per cycle -> Option AQuick Check:
More bits per cycle means higher throughput [OK]
Quick Trick: Wider bus means more bits per clock cycle [OK]
Common Mistakes:
- Assuming performance drops due to power without evidence
- Thinking clock speed must change to affect performance
- Believing memory size changes with bus width
Master "Bus Architecture" in ARM Architecture
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