220-801 · Question #191
Which of the following RAM types is used if it is labeled as 4 GB PC1333?
The correct answer is B. DDR3. The PC1333 designation identifies DDR3 memory modules running at 1333 MHz.
Question
Which of the following RAM types is used if it is labeled as 4 GB PC1333?
Options
- ARAMBUS
- BDDR3
- CSDIMM
- DSIM
How the community answered
(28 responses)- A7% (2)
- B89% (25)
- C4% (1)
Why each option
The PC1333 designation identifies DDR3 memory modules running at 1333 MHz.
RAMBUS (RDRAM) uses a different module designation (RIMM) and naming convention, not the PC-followed-by-MHz format.
DDR3 memory modules use a naming convention where the MHz speed is appended to 'PC' or 'PC3'; PC1333 (also referred to as PC3-10600) identifies DDR3 SDRAM running at an effective speed of 1333 MHz. This follows the JEDEC DDR3 standard specification.
SDIMM is not a recognized standard RAM type or module designation in the JEDEC memory specification.
SIM (Single Inline Memory Module) refers to an obsolete 30-pin or 72-pin module format used in early personal computers, not modern DDR memory.
Concept tested: DDR3 RAM module naming and identification
Source: https://www.jedec.org/standards-documents/docs/jesd79-3f
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