SK0-003 · Question #443
Which of the following is an advantage of using non-ECC memory over ECC memory?
The correct answer is B. Non-ECC is faster than ECC. Non-ECC memory offers a performance advantage over ECC memory because it does not incur the overhead of error checking and correction.
Question
Which of the following is an advantage of using non-ECC memory over ECC memory?
Options
- AECC is faster than non-ECC
- BNon-ECC is faster than ECC
- CNon-ECC is more expensive than ECC
- DNon-ECC checks for memory errors
How the community answered
(65 responses)- A2% (1)
- B92% (60)
- C5% (3)
- D2% (1)
Why each option
Non-ECC memory offers a performance advantage over ECC memory because it does not incur the overhead of error checking and correction.
ECC memory includes additional error-checking logic, which typically makes it slightly slower than non-ECC memory due to the overhead involved in error detection and correction.
Non-ECC (non-Error Correcting Code) memory is generally faster than ECC memory because it lacks the additional circuitry and computational overhead required for detecting and correcting memory errors. This absence of error checking means data can be processed slightly quicker without the extra step of verification.
Non-ECC memory is typically less expensive than ECC memory because it is simpler in design and lacks the extra components required for error correction.
Non-ECC memory does not check for memory errors; that is the primary function of ECC memory, which ensures data integrity.
Concept tested: Differences between ECC and non-ECC memory
Source: https://learn.microsoft.com/en-us/windows-server/administration/performance-tuning/memory/understanding-memory-ecc
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