SK0-003 · Question #818
Which of the following is the CAS latency of a memory module?
The correct answer is D. The number of clock cycles to return a request. CAS latency, or Column Access Strobe latency, is a critical memory timing specification that indicates the delay in clock cycles between a data request and when the data becomes available.
Question
Which of the following is the CAS latency of a memory module?
Options
- AThe number of clock cycles to verify the data
- BThe number of clock cycles to store data
- CThe number of clock cycles to clear the module
- DThe number of clock cycles to return a request
How the community answered
(45 responses)- A2% (1)
- B4% (2)
- D93% (42)
Why each option
CAS latency, or Column Access Strobe latency, is a critical memory timing specification that indicates the delay in clock cycles between a data request and when the data becomes available.
CAS latency is not related to verifying data integrity; it specifically quantifies the time taken to access and retrieve data.
CAS latency describes the delay in reading or returning data, not the time it takes to store data in the memory module.
CAS latency is a read-related timing parameter and has no direct relation to clearing or resetting the memory module.
CAS latency measures the time delay, in clock cycles, from the moment the memory controller sends a Column Access Strobe (CAS) signal to a memory module to request data, until the requested data is actually output and available for retrieval. This is a key performance metric for RAM.
Concept tested: RAM timing - CAS latency definition
Source: https://www.intel.com/content/www/us/en/gaming/resources/ram-speed-latency.html
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