DDR4 vs DDR5, Explained
DDR5 doubled the bandwidth and moved power regulation onto the module. Whether that is worth paying for depends entirely on which platform you are building.
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Tech Dives
3 articles
CAS Latency, True Latency, and Why CL Numbers Mislead
CAS latency is a count of clock cycles, not a unit of time, so a lower CL number does not mean a faster module once two kits run at different clock speeds -- converting to true latency is the only way to compare them honestly.
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XMP vs EXPO: Getting the Speed You Paid For
A RAM kit ships running at a conservative JEDEC default speed no matter what the box says, and it stays there until an XMP or EXPO profile is enabled in BIOS -- the two standards do the same job for Intel and AMD platforms respectively.
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