cpu Constant Amperage CPUs

[LeviBW]

Sorry if this is a noob question, but I’m a noob at this sooo. Do CPUs always run at a fixed amperage, I assume they do because if voltage and amps are both changing with load then it would be impossible to compare voltage between chips. Also since a 2 core 2Ghz CPU runs roughly the same voltage as a 16core cpu that would mean that they are pulling different amps, is does the operating amperage varry from chip to chip or is it alway the same for all chips in a SKU and the stock stable voltage varies from chip to chip. 

 

Also so does anyone know what amperage an average modern cpu run at?

 

Thanks 

[SquintyG33Rs]

9 minutes ago, LeviBW said:

Sorry if this is a noob question, but I’m a noob at this sooo. Do CPUs always run at a fixed amperage, I assume they do because if voltage and amps are both changing with load then it would be impossible to compare voltage between chips. Also since a 2 core 2Ghz CPU runs roughly the same voltage as a 16core cpu that would mean that they are pulling different amps, is does the operating amperage varry from chip to chip or is it alway the same for all chips in a SKU and the stock stable voltage varies from chip to chip. 

 

Also so does anyone know what amperage an average modern cpu run at?

 

Thanks 

nope. CPU's don't run at similar voltages if they aren't the same architecture. both the voltage and amperage is constantly fluctuating on the chip (unless you manually locked voltage in bios)

[LeviBW]

21 minutes ago, SquintyG33Rs said:

nope. CPU's don't run at similar voltages if they aren't the same architecture.

I don’t mean that they run the same exact voltage, I mean like for example on air a 4670k and a r7 1800x run in the same range of 1.1-1.5v but obv the 1800x needs more power so it must be pulling more amps 

24 minutes ago, SquintyG33Rs said:

nope both the voltage and amperage is constantly fluctuating on the chip (unless you manually locked voltage in bios)

If that’s true than how can you compre the stable voltages of a chip, example 7700k 5GHz @ 1.35v Vs. other 7700k 5GHz @ 1.45v. 

These types of comparisons happen all the time but arnt they completely worthless since the amperage the cpu is pulling could be completely different 

[SquintyG33Rs]

1 minute ago, LeviBW said:

I don’t mean that they run the same exact voltage, I mean like for example on air a 4670k and a r7 1800x run in the same range of 1.1-1.5v but obv the 1800x needs more power so it must be pulling more amps 

If that’s true than how can you compre the stable voltages of a chip, example 7700k 5GHz @ 1.35v Vs. other 7700k 5GHz @ 1.45v. 

These types of comparisons happen all the time but arnt they completely worthless since the amperage the cpu is pulling could be completely different 

but those are the same chip therefore same architecture. so it's comparable. and to make sure you keep stability allot of the time you lock voltage when overclocking.

either way it's not meant to be a comparison... it's a dick measuring contest online... and surprisingly the 1800x doesn't pull much more power than the 4690k would when overclocked. they'll both be close to the 100W mark at 1.25V or a bit more for 1800x so about the same amperage too...

[just_dave]

Today is the most efficent Ryzen, 8 core at around 1.425V needs 100A.

In this case clocks don't matter, only voltage.

You can get approximate current by doing this calculation: I = TDP : VCore

[LeviBW]

8 hours ago, SquintyG33Rs said:

but those are the same chip therefore same architecture. so it's comparable. and to make sure you keep stability allot of the time you lock voltage when overclocking.

either way it's not meant to be a comparison... it's a dick measuring contest online... and surprisingly the 1800x doesn't pull much more power than the 4690k would when overclocked. they'll both be close to the 100W mark at 1.25V or a bit more for 1800x so about the same amperage too...

I see so within the same architecture the amperage is similar so it is someone compareable. But comparing outside of one architecture it’s kinda worthless. 

 

Is there anyway to see the curve that the amperage follows or change the different steps of it?

[SquintyG33Rs]

4 hours ago, LeviBW said:

I see so within the same architecture the amperage is similar so it is someone compareable. But comparing outside of one architecture it’s kinda worthless. 

 

Is there anyway to see the curve that the amperage follows or change the different steps of it?

You don't control amperage in electricity.... That's just not how the physics work. Voltage yes. Amps no. So you can calculate it according to how much wattage you measure out of the wall and voltage but i don't see the point.