STOP!

[orangecat]

I wish people would stop giving AMD credit for making a CPU with a 200watt TDP. I keep seeing people say who acres or it doesn't matter. That CPU will kick out a ton of heat and eat up a ton of power even if it is better then Haswell in terms of performance is it worth it to have a CPU that draws that much power?

[M-ursu]

Personally i wont care about TDP because i have custom loop and i wont care about power draw because it wont cost that much.

[Bleedman0xx]

[Guest GRRigger]

your gpu most probably take the same amount lol

but yea, they should shrink them 

[felixbearpig]

lol its just a 200w 8350

[DjArtifact]

It kicks out the same amount of heat as a 5ghz 8350, who cares.

[Vitalius]

Personally i wont care about TDP because i have custom loop and i wont care about power draw because it wont cost that much.

Let's do math! :D

Assuming you pay $0.10 per KWH (or equivalent in your currency and that's a very low estimate for how much you pay), and that you will utilize the CPU at 100% load (200 watts) for 2 hours a day (gaming, I assume) and that it idles at about 50-75 watts. 

Let's also assume you never turn it completely off, but hibernate/sleep over night (12 hours, as you likely won't be on it the entire time you are awake) basically using 0 watts (effectively).

Here's how it would break down, per day:

2 hours at 200 watts

10 hours at 75 (choosing the high value) watts

and 12 hours at 0 watts.

That would average out to 47.92 watts per hour. There are 8760 hours per year.

In 1 year, that means you'd use approximately 419779.2 watts or 419.7792 Kilowatts (equivalent to KWH's essentially).

At $0.10 (or your equivalent currency) per KWH, that's $41.78 for just your CPU usage for that year.

Hmm, not sure if worth it.

[DjArtifact]

Let's do math! :D

Assuming you pay $0.10 per KWH (or equivalent in your currency and that's a very low estimate for how much you pay), and that you will utilize the CPU at 100% load (200 watts) for 2 hours a day (gaming, I assume) and that it idles at about 50-75 watts. 

Let's also assume you never turn it completely off, but hibernate/sleep over night (12 hours, as you likely won't be on it the entire time you are awake) basically using 0 watts (effectively).

Here's how it would break down, per day:

2 hours at 200 watts

10 hours at 75 (choosing the high value) watts

and 12 hours at 0 watts.

That would average out to 47.92 watts per hour. There are 8760 hours per year.

In 1 year, that means you'd use approximately 419779.2 watts or 419.7792 Kilowatts (equivalent to KWH's essentially).

At $0.10 (or your equivalent currency) per KWH, that's $41.78 for just your CPU usage for that year.

Hmm, not sure if worth it.

TDP =/= power usage.  A haswell i7 4770k has an 84w TDP which is higher than the 77w TDP of the 3770k, this is because haswell runs hotter, not because it uses more energy.

[Bleedman0xx]

this is because haswell runs hotter, not because it uses more energy.

wat

[M-ursu]

Let's do math! :D

Assuming you pay $0.10 per KWH (or equivalent in your currency and that's a very low estimate for how much you pay), and that you will utilize the CPU at 100% load (200 watts) for 2 hours a day (gaming, I assume) and that it idles at about 50-75 watts. 

Let's also assume you never turn it completely off, but hibernate/sleep over night (12 hours, as you likely won't be on it the entire time you are awake) basically using 0 watts (effectively).

Here's how it would break down, per day:

2 hours at 200 watts

10 hours at 75 (choosing the high value) watts

and 12 hours at 0 watts.

That would average out to 47.92 watts per hour. There are 8760 hours per year.

In 1 year, that means you'd use approximately 419779.2 watts or 419.7792 Kilowatts (equivalent to KWH's essentially).

At $0.10 (or your equivalent currency) per KWH, that's $41.78 for just your CPU usage for that year.

Hmm, not sure if worth it.

In Finland: 0.07snt kw/h

And i will turn my computer off when i wont use it.

(It will boot up under 10sek.)

I use it max.5h per day.

And i have fx-8350 @5.1ghz.

So how much i pay in a year?

[DjArtifact]

wat

Haswell runs hotter than ivy but uses less power, the TDP of haswell is higher than ivy.

[Morfy]

I tend to believe that the TDP is the power that it sucks, and it influences alot the heat output ofc, but i don't think is just the heat ...

[Bleedman0xx]

Haswell runs hotter than ivy but uses less power, the TDP of haswell is higher than ivy.

That defies physics.

[DjArtifact]

That defies physics.

Haswell is a more energy efficient platform, but it runs hotter.

[Morfy]

Haswell is a more energy efficient platform, but it runs hotter.

When they refer to energy efficient, they are talikng about that incredible power consumption at idle, making it overall better, not at max.

[DjArtifact]

When they refer to energy efficient, they are talikng about that incredible power consumption at idle, making it overall better, not at max.

source?

[Bleedman0xx]

Haswell is a more energy efficient platform, but it runs hotter.

Again... Whatever you think you know about CPUs, think about what you're saying. And then apply physics to your thought. Because you're incorrect. Intel never said anything about Haswell being more energy efficient other than when idling at which point the TDP shoots down considerably. The only reason Haswell has a slightly higher TDP is because it incorporates a significantly faster iGPU. That iGPU requires more power to operate. So, with that said; No, Haswell does not use less energy, it uses more. That's why it runs hotter.

 

More energy = more heat.

Less energy = less heat.

 

Less energy will never equal more heat. That's just simple physics.

[DjArtifact]

Again... Whatever you think you know about CPUs, think about what you're saying. And then apply physics to your thought. Because you're incorrect. Intel never said anything about Haswell being more energy efficient other than when idling at which point the TDP shoots down considerably. The only reason Haswell has a slightly higher TDP is because it incorporates a significantly faster iGPU. That iGPU requires more power to operate. So, with that said; No, Haswell does not use less energy, it uses more. That's why it runs hotter.

 

More energy = more heat.

Less energy = less heat.

 

Less energy will never equal more heat. That's just simple physics.

source?

[SteepGnomeKing]

Again... Whatever you think you know about CPUs, think about what you're saying. And then apply physics to your thought. Because you're incorrect. Intel never said anything about Haswell being more energy efficient other than when idling at which point the TDP shoots down considerably. The only reason Haswell has a slightly higher TDP is because it incorporates a significantly faster iGPU. That iGPU requires more power to operate. So, with that said; No, Haswell does not use less energy, it uses more. That's why it runs hotter.

 

More energy = more heat.

Less energy = less heat.

 

Less energy will never equal more heat. That's just simple physics.

 

Your not taking efficiency into the equation at all.

[Bleedman0xx]

source?

[Bleedman0xx]

Your not taking efficiency into the equation at all.

The efficiency is geared more towards laptop users. It does virtually nothing for desktop users.

[SteepGnomeKing]

The efficiency is geared more towards laptop users. It does virtually nothing for desktop users.

 

Efficiency in power usage. How it uses the power instead of it being converted to heat. Not how low of a power usage it can get. 

[DjArtifact]

 

source?

 

 

 

source?

 

I feel like some of the power consumption and heat on haswell comes from the built in VRM.  I think the built in VRM was a bad call for Intel.

[Vitalius]

In Finland: 0.07snt kw/h

And i will turn my computer off when i wont use it.

(It will boot up under 10sek.)

I use it max.5h per day.

And i have fx-8350 @5.1ghz.

So how much i pay in a year?

A quick guesstimation is about 20.00 snt per KWH doing that per year.

[Bleedman0xx]

Efficiency in power usage. How it uses the power instead of it being converted to heat. Not how low of a power usage it can get. 

I'm assuming you're referring to the voltage regulator on-die. That's where the efficiency is... for idling low power consumption.

 

I feel like some of the power consumption and heat on haswell comes from the built in VRM.  I think the built in VRM was a bad call for Intel.

That VRM is why Intel is able to push down the idling power consumption rates so low.