F5F Stay Refreshed Hardware Desktop Does the use of spread spectrum clocking affect a CPU's efficiency and lead to increased heat generation?

Does the use of spread spectrum clocking affect a CPU's efficiency and lead to increased heat generation?

Does the use of spread spectrum clocking affect a CPU's efficiency and lead to increased heat generation?

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RiverMix
Junior Member
40
06-10-2021, 11:58 AM
#1
Does spread spectrum clocking lead to increased CPU temperatures? If yes, the reason lies in how it affects the processor's performance and heat generation.
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RiverMix
06-10-2021, 11:58 AM #1

Does spread spectrum clocking lead to increased CPU temperatures? If yes, the reason lies in how it affects the processor's performance and heat generation.

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BatJoseph
Junior Member
3
06-16-2021, 07:42 AM
#2
You might have observed that BCLK doesn't remain constant at 100 but mostly varies slightly below it. This behavior is a spread spectrum mechanism that fine-tunes BCLK to align with memory, PCIe, and other related components. Modifying BCLK and SS can stabilize its frequency, improving performance when it reaches or exceeds 100, while values below 100 may negatively impact it.
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BatJoseph
06-16-2021, 07:42 AM #2

You might have observed that BCLK doesn't remain constant at 100 but mostly varies slightly below it. This behavior is a spread spectrum mechanism that fine-tunes BCLK to align with memory, PCIe, and other related components. Modifying BCLK and SS can stabilize its frequency, improving performance when it reaches or exceeds 100, while values below 100 may negatively impact it.

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SA_minecraft
Member
203
06-21-2021, 03:50 PM
#3
I think the idea is that the bus clock movement (as SS does) causes the processor and other system clocks to change in sync, which can lead to instability especially when heavily overclocked. This inconsistency might make the system less stable than it would be without SS, reducing performance. I feel that if you're near the stability threshold, using SS could be the reason your setup isn't working as intended.
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SA_minecraft
06-21-2021, 03:50 PM #3

I think the idea is that the bus clock movement (as SS does) causes the processor and other system clocks to change in sync, which can lead to instability especially when heavily overclocked. This inconsistency might make the system less stable than it would be without SS, reducing performance. I feel that if you're near the stability threshold, using SS could be the reason your setup isn't working as intended.

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sarburstzz
Member
54
06-21-2021, 09:01 PM
#4
Spread spectrum serves CPUs the same purpose catalytic converters serve to ICEs: a result of bureaucratic inefficiency.
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sarburstzz
06-21-2021, 09:01 PM #4

Spread spectrum serves CPUs the same purpose catalytic converters serve to ICEs: a result of bureaucratic inefficiency.

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PANDAANDHUMAN
Member
116
06-24-2021, 03:55 AM
#5
Additionally, the human brain does not rely on "spread spectrum"; patterns of brain waves observed in electroencephalograms (EEGs) result from neurons activating together.
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PANDAANDHUMAN
06-24-2021, 03:55 AM #5

Additionally, the human brain does not rely on "spread spectrum"; patterns of brain waves observed in electroencephalograms (EEGs) result from neurons activating together.