eletricity bill?

[connrad96]

Hey guys so wandering if you can help me, how much would an amd fx 8350 cost to run 8 hours a day 7 days a week (my girlfriend also games on it) also if you could how much would an amd r9 280x cost to run proably the two most power hungry things to get haha I'm also in the UK (England)

[dizmo]

We'd need to know the PSU you're using as well as many other factors.

The amount you pay for power, if your power company charges more during peak hours, etc etc.

[gozzygozborn]

If you are really worried about the bill get a gold rated psu.

[connrad96]

We'd need to know the PSU you're using as well as many other factors.

The amount you pay for power, if your power company charges more during peak hours, etc etc.

it's 15.51 pense per killowat I'm assuming it's not increased during peak times just to make it simplier and my power supply is a corsair cx750 bronze certified

[connrad96]

I have got a power usage metre plug thing it says my pc uses about 450w during gaming

[dizmo]

it's 15.51 pense per killowat I'm assuming it's not increased during peak times just to make it simplier and my power supply is a corsair cx750 bronze certified

So if you're gaming for the 8 hours, then it's 3844 pense per month.

 

rate (x) duration (x) term.

[connrad96]

So if you're gaming for the 8 hours, then it's 3844 pense per month.

rate (x) duration (x) term.

Jesus £38 a month haha amd really are power hungry haha

[Syfes]

If you assume your power meter is correct:

 

450W or 0.45kW

15.51 p/kW

8 hours per day

 

=> 0.45 * 15.52 * 8 = ~56p / day or roughly £17 a month.

[connrad96]

If you assume your power meter is correct:

450W or 0.45kW

15.51 p/kW

8 hours per day

=> 0.45 * 15.52 * 8 = ~56p / day or roughly £17 a month.

Okay thank you just got a letter from my electricity provider and there increasing the bill haha

[Faceman]

it's 15.51 pense per killowat I'm assuming it's not increased during peak times just to make it simplier and my power supply is a corsair cx750 bronze certified

15.51 pence per KWh?!!? Thats expensive!!!  Dude, you might want to reconsider your choice of CPU based on power consumption alone.

 

Power consumption is another aspect of the FX CPU that needs to be talked about.  It draws so much more power than the Intel equivalent, that in just 2-3 years of use, the FX will end up costing you even more money.  Of course some places it is less expensive for energy than others, but you cannot deny that there is a 100W+ difference between an FX8 and an i5.  This power disparity only grows the further you overclock the FX.

 

I will use the average price of residential electricity in the U.S., which is $0.1294c per KWh according to EIA in September 2014.  I wish I could exclude Hawaii, because the electricity there kinda skews things unfavorably, so for this example, we will assume the average price is a flat $0.12 per KWh.  We will also assume that the overclocked FX power draw is 100W higher than the stock i5.  Lastly, lets assume that the average gamer plays for two hours per day, with an additional 2 hours of regular use(non-gaming), so lets just call it 3 hours a day to make it easy.

 

Power Consumption = 100W

Hours of Use Per Day = 3

Energy Consumed Per Day = .3 KWh

Price Per Killowatt Hour = $0.12

 

Energy Cost Per Day = $0.036

Energy Cost Per Month = $1.08

Energy Cost Per Year = $13.14

 

With our quick and dirty calculation, we see that the difference between the FX and i5 is going to add up to over $10 per year, and that is a conservative, no-overclock estimate.  With most of us wanting to keep our components as long as possible before having to upgrade, owning components for 2-3 years, and sometimes even longer, is not out of the question and that energy cost per year really starts to add up.

 

 

If you would like to calculate this for yourself, you will need to find out what the cost of energy is where you are located, and these two formulas:

Energy consumption calculation

The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) times number of usage hours per day t divided by 1000 watts per kilowatt:

E_(kWh/day) = P_(W) × t_(h/day) / 1000_(W/kW)

Energy cost calculation

The energy cost per day in dollars is equal to the energy consumption E in kWh per day times the energy cost of 1 kWh in cents/kWh divided by 100 cents per dollar:

Cost_($/day) = E_(kWh/day) × Cost_(cent/kWh) / 100_(cent/$)

[connrad96]

15.51 pence per KWh?!!? Thats expensive!!! Dude, you might want to reconsider your choice of CPU based on power consumption alone.

Power consumption is another aspect of the FX CPU that needs to be talked about. It draws so much more power than the Intel equivalent, that in just 2-3 years of use, the FX will end up costing you even more money. Of course some places it is less expensive for energy than others, but you cannot deny that there is a 100W+ difference between an FX8 and an i5. This power disparity only grows the further you overclock the FX.

I will use the average price of residential electricity in the U.S., which is $0.1294c per KWh according to EIA in September 2014. I wish I could exclude Hawaii, because the electricity there kinda skews things unfavorably, so for this example, we will assume the average price is a flat $0.12 per KWh. We will also assume that the overclocked FX power draw is 100W higher than the stock i5. Lastly, lets assume that the average gamer plays for two hours per day, with an additional 2 hours of regular use(non-gaming), so lets just call it 3 hours a day to make it easy.

Power Consumption = 100W

Hours of Use Per Day = 3

Energy Consumed Per Day = .3 KWh

Price Per Killowatt Hour = $0.12

Energy Cost Per Day = $0.036

Energy Cost Per Month = $1.08

Energy Cost Per Year = $13.14

With our quick and dirty calculation, we see that the difference between the FX and i5 is going to add up to over $10 per year, and that is a conservative, no-overclock estimate. With most of us wanting to keep our components as long as possible before having to upgrade, owning components for 2-3 years, and sometimes even longer, is not out of the question and that energy cost per year really starts to add up.

If you would like to calculate this for yourself, you will need to find out what the cost of energy is where you are located, and these two formulas:

Energy consumption calculation

The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) times number of usage hours per day t divided by 1000 watts per kilowatt:

E_(kWh/day) = P_(W) × t_(h/day) / 1000_(W/kW)

Energy cost calculation

The energy cost per day in dollars is equal to the energy consumption E in kWh per day times the energy cost of 1 kWh in cents/kWh divided by 100 cents per dollar:

Cost_($/day) = E_(kWh/day) × Cost_(cent/kWh) / 100_(cent/$)

thank you it know the fx series drinks so much power and even though the price to performance is quite good it's a shame it's efficiency isn't up to scratch

[Faceman]

thank you it know the fx series drinks so much power and even though the price to performance is quite good it's a shame it's efficiency isn't up to scratch

Its not very good price to performance.  You cannot compare just price of processor when evaluating processors.  Can't forget that energy bill either, at 15 pence per KWh, running it for 8 hours a day, you are going to be spending 20 pounds+ per year, and that is a very conservative estimate.  If I actually ran the numbers, I expect it to be closer to 25 quid per year based on your cost of energy, and amount of use the PC will incur.  If you plan to overclock, you end up spending even more.

 

When buying an FX, you need a high end motherboard because it is so power hungry.  You need a high end motherboard with extensive VRM phase design, this costs a lot.  You also need to buy an aftermarket CPU cooler, that again adds more cost.  Whereas, if you went with a locked i5 + H81/B85 motherboard, you will end up paying less, and getting much better all-around performance.  The only time I would recommend the FX is if you are doing a lot of content creation, or programs that can fully utilize all dem corez.  If your purpose is gaming, even an i3 outperforms an FX8.

[i_build_nanosuits]

hahaha we pay 5.57¢/kWh here in quebec

http://www.hydroquebec.com/residential/understanding-your-bill/rates/residential-rates/rate-d/

 

Those huge hydro-electric dams provides us with cheap and clean electricity up here

We even produce more than we can use and we sell the extra at higher prices to the US.

[connrad96]

Its not very good price to performance. You cannot compare just price of processor when evaluating processors. Can't forget that energy bill either, at 15 pence per KWh, running it for 8 hours a day, you are going to be spending 20 pounds+ per year, and that is a very conservative estimate. If I actually ran the numbers, I expect it to be closer to 25 quid per year based on your cost of energy, and amount of use the PC will incur. If you plan to overclock, you end up spending even more.

When buying an FX, you need a high end motherboard because it is so power hungry. You need a high end motherboard with extensive VRM phase design, this costs a lot. You also need to buy an aftermarket CPU cooler, that again adds more cost. Whereas, if you went with a locked i5 + H81/B85 motherboard, you will end up paying less, and getting much better all-around performance. The only time I would recommend the FX is if you are doing a lot of content creation, or programs that can fully utilize all dem corez. If your purpose is gaming, even an i3 outperforms an FX8.

I see your point, do you think it's really worth swapping it all out for Intel?

[connrad96]

hahaha we pay 5.57¢/kWh here in quebec

http://www.hydroquebec.com/residential/understanding-your-bill/rates/residential-rates/rate-d/

Those huge hydro-electric dams provides us with cheap and clean electicity up here

the joys of England -.-

[i_build_nanosuits]

I see your point, do you think it's really worth swapping it all out for Intel?

unless you plan a full overhaul with a new high-end GPU(s)...no, performance wise it's not worth it...your parts are balanced now...try to lower the voltages on your FX chip and turn on the power saving features...save money elsewhere you won't ruin yourself running that machine.

[connrad96]

unless you plan a full overhaul with a new high-end GPU(s)...no, performance wise it's not worth it...your parts are balanced now...try to lower the voltages on your FX chip and turn on the power saving features...save money elsewhere you won't ruin yourself running that machine.

what ones need turning on in the bios last time I tried it end up lowering the clock speed to 4.09 ghz or something and wouldn't go to its max clock speed :L

[Hikaru12]

Its not very good price to performance.  You cannot compare just price of processor when evaluating processors.  Can't forget that energy bill either, at 15 pence per KWh, running it for 8 hours a day, you are going to be spending 20 pounds+ per year, and that is a very conservative estimate.  If I actually ran the numbers, I expect it to be closer to 25 quid per year based on your cost of energy, and amount of use the PC will incur.  If you plan to overclock, you end up spending even more.

 

When buying an FX, you need a high end motherboard because it is so power hungry.  You need a high end motherboard with extensive VRM phase design, this costs a lot.  You also need to buy an aftermarket CPU cooler, that again adds more cost.  Whereas, if you went with a locked i5 + H81/B85 motherboard, you will end up paying less, and getting much better all-around performance.  The only time I would recommend the FX is if you are doing a lot of content creation, or programs that can fully utilize all dem corez.  If your purpose is gaming, even an i3 outperforms an FX8.

 

I spend over $100 dollars on my FX 8350 server. It's rated for 95 watts at idle and I have it running in a server running 24x7 at 0.16cents KW/H

[i_build_nanosuits]

what ones need turning on in the bios last time I tried it end up lowering the clock speed to 4.09 ghz or something and wouldn't go to its max clock speed :L

awww man you'r asking me something i have a hard time remembering i got rid of my FX kit almost 6 months ago already...someone else is probably able to help you better than me on this probably @Priller which is a beast in AMD CPU's or @Sintezza or @harrynowl ...i know cool and quiet must be enabled (ON) and HPC disabled (OFF) other than that i'm not sure anymore.

 

at the same time i think it's illusive to think that you can cut down on power cnsumption without lowering your performance...you could probably save a few cents a day having the CPU trolttling down when idle and stuff...but at the end of the day it's when the CPU is active that it cost money and you can't cut on power without reducing performance/speeds.

[harrynowl]

For AMD "power savings"

 

Turbo core off

C1E on

Cool and Quiet on

APM on

 

HPC doesn't really matter from my experience

 

then set a multiplier of something like 18.5x (3.7ghz) and a voltage of 1.225v, see if it's stable. my 8320 managed that with load line calibration on high.

[Faceman]

I see your point, do you think it's really worth swapping it all out for Intel?

Oh, so you aren't buying new, you already own these parts... in that case... no, its not worth it.

[connrad96]

awww man you'r asking me something i have a hard time remembering i got rid of my FX kit almost 6 months ago already...someone else is probably able to help you better than me on this probably @Priller which is a beast in AMD CPU's or @Sintezza or @harrynowl ...i know cool and quiet must be enabled (ON) and HPC disabled (OFF) other than that i'm not sure anymore.

at the same time i think it's illusive to think that you can cut down on power cnsumption without lowering your performance...you could probably save a few cents a day having the CPU trolttling down when idle and stuff...but at the end of the day it's when the CPU is active that it cost money and you can't cut on power without reducing performance/speeds.

that's great it's a big help I think you helped me before as well

[connrad96]

For AMD "power savings"

Turbo core off

C1E on

Cool and Quiet on

APM on

HPC doesn't really matter from my experience

then set a multiplier of something like 18.5x (3.7ghz) and a voltage of 1.225v, see if it's stable. my 8320 managed that with load line calibration on high.

Thank you will sort it out tommorow do you think I will loose a noticeable degrade of performance going to 3.7 from 4.2

[harrynowl]

Thank you will sort it out tommorow do you think I will loose a noticeable degrade of performance going to 3.7 from 4.2

not really.

[connrad96]

I worked it all out looks like I'm running at £140 a year -.- should have gone Intel