F5F Stay Refreshed Hardware Desktop Looking for more details about RAM terms?

Looking for more details about RAM terms?

Looking for more details about RAM terms?

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derpdeherp
Member
58
04-29-2021, 11:08 PM
#1
The measurements are based on clock cycles. On and Off represent one cycle each, so the unit reflects that timing. For DDR, the clock speed is double, but the data rate stays the same—hence the name. In DDR5, improvements come from better timing precision and architecture, not just higher data rates.
D
derpdeherp
04-29-2021, 11:08 PM #1

The measurements are based on clock cycles. On and Off represent one cycle each, so the unit reflects that timing. For DDR, the clock speed is double, but the data rate stays the same—hence the name. In DDR5, improvements come from better timing precision and architecture, not just higher data rates.

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aaronrogers649
Junior Member
11
04-29-2021, 11:33 PM
#2
The bandwidth period is key. DDR5 should offer roughly four times the bandwidth compared to the same clock speed, even with more relaxed timing parameters. For instance, a high-end DDR3 at 2133MHz is considered a solid RAM setup, whereas this matches the JDEC standard for DDR4. Similar trends apply—DDR5 at 3200MHz is likely the JDEC norm, and it will support significantly higher XMP speeds than DDR4.
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aaronrogers649
04-29-2021, 11:33 PM #2

The bandwidth period is key. DDR5 should offer roughly four times the bandwidth compared to the same clock speed, even with more relaxed timing parameters. For instance, a high-end DDR3 at 2133MHz is considered a solid RAM setup, whereas this matches the JDEC standard for DDR4. Similar trends apply—DDR5 at 3200MHz is likely the JDEC norm, and it will support significantly higher XMP speeds than DDR4.