Why the Ryzen 9800X3D uses nearly twice as much power as the Ryzen 7800X3D?

F5F Stay Refreshed Hardware Desktop Why the Ryzen 9800X3D uses nearly twice as much power as the Ryzen 7800X3D?

Why the Ryzen 9800X3D uses nearly twice as much power as the Ryzen 7800X3D?

Why the Ryzen 9800X3D uses nearly twice as much power as the Ryzen 7800X3D?

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ItzOprayHD
Member

173

01-16-2023, 11:28 AM

#1

What occurred? 7800X3D was a top-tier CPU with excellent efficiency, but now it seems the 9800X3D version consumes nearly double its predecessor's power. In games, this jump is about 30-40%, and in applications, roughly 100% more than before. Even more surprising. What changed? According to reviews, performance gains are only around 15% in applications and 2-4% in gaming—far less than the massive power increase. Is there a bug that needs fixing? What actually happened?

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ItzOprayHD

01-16-2023, 11:28 AM #1

What occurred? 7800X3D was a top-tier CPU with excellent efficiency, but now it seems the 9800X3D version consumes nearly double its predecessor's power. In games, this jump is about 30-40%, and in applications, roughly 100% more than before. Even more surprising. What changed? According to reviews, performance gains are only around 15% in applications and 2-4% in gaming—far less than the massive power increase. Is there a bug that needs fixing? What actually happened?

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Diego_HC
Junior Member

40

01-16-2023, 06:16 PM

#2

I believe the main turbo feature is stronger. The 7800x3d model has a reduced temperature threshold compared to the 9800x3d, thanks to the placement of the 3d V-Cache beneath the CPU die. In the 9800x3d, this design enables improved heat dissipation for the cores, which supports achieving higher all-core boost speeds.

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Diego_HC

01-16-2023, 06:16 PM #2

I believe the main turbo feature is stronger. The 7800x3d model has a reduced temperature threshold compared to the 9800x3d, thanks to the placement of the 3d V-Cache beneath the CPU die. In the 9800x3d, this design enables improved heat dissipation for the cores, which supports achieving higher all-core boost speeds.

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ShinyKirby
Member

145

01-18-2023, 01:12 AM

#3

The gaming audience usually ignores power usage concerns.

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ShinyKirby

01-18-2023, 01:12 AM #3

The gaming audience usually ignores power usage concerns.

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wolvie17
Junior Member

17

01-18-2023, 09:06 AM

#4

It doesn't make sense to justify a 100% rise in power usage. This issue seems like a design problem, and it's puzzling why no one is holding anyone accountable. 7800X3D was impressive, and 9800X3D should still be considered at least decent. A 100% increase in power consumption appears to be a significant error.

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wolvie17

01-18-2023, 09:06 AM #4

It doesn't make sense to justify a 100% rise in power usage. This issue seems like a design problem, and it's puzzling why no one is holding anyone accountable. 7800X3D was impressive, and 9800X3D should still be considered at least decent. A 100% increase in power consumption appears to be a significant error.

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apache360
Junior Member

20

01-18-2023, 05:41 PM

#5

It also fails to provide a valid reason... Going past the optimal range for efficiency causes power consumption to rise sharply with minimal improvement. Even a full 100% increase in power usage isn't a concern if the initial power figure is already low.

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apache360

01-18-2023, 05:41 PM #5

It also fails to provide a valid reason... Going past the optimal range for efficiency causes power consumption to rise sharply with minimal improvement. Even a full 100% increase in power usage isn't a concern if the initial power figure is already low.