Channel configuration (e.g., dual-channel, quad-channel) determines how memory modules communicate with the memory controller. Using matched pairs in dual- or quad-channel setups can significantly increase memory bandwidth, improving performance — especially for gaming and video-intensive tasks.
Option A (Error correction): ECC RAM is used in servers for reliability, not performance or gaming.
Option B (RAM voltage): Affects compatibility and overclocking but not bandwidth.
Option D (Physical size): Refers to module form factor (e.g., DIMM, SO-DIMM) and does not impact bandwidth.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 3.2: Given a scenario, install RAM types.
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