Will a 750W PSU cost more to run than a 600W if the demands from both PSUs are the same? So 450W being used on both would the electricity bill be more on the 750W?
Make sure the PSU is 80+. Your PC will only take as much power as it needs, so it doesn't matter if its 1000W or 500W.
As .Sup alludes to, it depends on the efficiency. 80+ = 80%+ efficiency.
"people in ny have a general idea of how to drive. one of the pedals goes forward the other one prevents you from dying"
.Sup wrote:
Make sure the PSU is 80+. Your PC will only take as much power as it needs, so it doesn't matter if its 1000W or 500W.
What do you guys mean by 80+, may I ask?haffeysucks wrote:
As .Sup alludes to, it depends on the efficiency. 80+ = 80%+ efficiency.
It's a certification. It means that over 80% of the power that goes in comes out, and doesn't convert to noise or heat. If there was a PSU that was 100% effective, it wouldn't need any cooling, as it wouldn't genereate any heat. But that's quite impossible.Kurazoo wrote:
.Sup wrote:
Make sure the PSU is 80+. Your PC will only take as much power as it needs, so it doesn't matter if its 1000W or 500W.What do you guys mean by 80+, may I ask?haffeysucks wrote:
As .Sup alludes to, it depends on the efficiency. 80+ = 80%+ efficiency.
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
Yep. It's like perpetual power - everyone wants it, but we're 99.9999% sure it's not physically possible.Freezer7Pro wrote:
It's a certification. It means that over 80% of the power that goes in comes out, and doesn't convert to noise or heat. If there was a PSU that was 100% effective, it wouldn't need any cooling, as it wouldn't genereate any heat. But that's quite impossible.Kurazoo wrote:
.Sup wrote:
Make sure the PSU is 80+. Your PC will only take as much power as it needs, so it doesn't matter if its 1000W or 500W.What do you guys mean by 80+, may I ask?haffeysucks wrote:
As .Sup alludes to, it depends on the efficiency. 80+ = 80%+ efficiency.
"people in ny have a general idea of how to drive. one of the pedals goes forward the other one prevents you from dying"
Wonder if it'll start popping up 90+ supplies some day...haffeysucks wrote:
Yep. It's like perpetual power - everyone wants it, but we're 99.9999% sure it's not physically possible.Freezer7Pro wrote:
It's a certification. It means that over 80% of the power that goes in comes out, and doesn't convert to noise or heat. If there was a PSU that was 100% effective, it wouldn't need any cooling, as it wouldn't genereate any heat. But that's quite impossible.Kurazoo wrote:
What do you guys mean by 80+, may I ask?.Sup wrote:
Make sure the PSU is 80+. Your PC will only take as much power as it needs, so it doesn't matter if its 1000W or 500W.
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
Its possible but their cooling bodies will need to get a lot bigger.Freezer7Pro wrote:
Wonder if it'll start popping up 90+ supplies some day...haffeysucks wrote:
Yep. It's like perpetual power - everyone wants it, but we're 99.9999% sure it's not physically possible.Freezer7Pro wrote:
It's a certification. It means that over 80% of the power that goes in comes out, and doesn't convert to noise or heat. If there was a PSU that was 100% effective, it wouldn't need any cooling, as it wouldn't genereate any heat. But that's quite impossible.
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.Freezer7Pro wrote:
Wonder if it'll start popping up 90+ supplies some day...haffeysucks wrote:
Yep. It's like perpetual power - everyone wants it, but we're 99.9999% sure it's not physically possible.
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.Freezer7Pro wrote:
Wonder if it'll start popping up 90+ supplies some day...
No, I think Freezer is right. The conversion is from 120V in the wall socket to the 12V rail for your GPU, 5V, etc. Electricity to electricity. But PSU's today aren't as efficient because although they convert electricity to electricity, they also convert some of that first electricity into heat, thus needing fans..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.
"people in ny have a general idea of how to drive. one of the pedals goes forward the other one prevents you from dying"
Are you saying electricity doesn't pass through the CPU and that the electricity is not one of the factors why CPU's produce heat?haffeysucks wrote:
No, I think Freezer is right. The conversion is from 120V in the wall socket to the 12V rail for your GPU, 5V, etc. Electricity to electricity. But PSU's today aren't as efficient because although they convert electricity to electricity, they also convert some of that first electricity into heat, thus needing fans..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces.
If it's more efficient, it doesn't produce that heat. Today's 75+/80+ PSUs don't produce much heat at all, enough to be cooled by 15-20CFM passing over some aluminum heatsinks. If there is a 90+ 500w PSU, it could probably even run passively..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.
You can't compare a PSU and a CPU in that manner. A PSU just makes electricity to electricity, a CPU does calculations. A PSU converts A to B, the CPU uses B to do calculations. Basically, a CPU converts electricity to computer power. A PSU converts electricity to electricity..Sup wrote:
Are you saying electricity doesn't pass through the CPU and that the electricity is not one of the factors why CPU's produce heat?haffeysucks wrote:
No, I think Freezer is right. The conversion is from 120V in the wall socket to the 12V rail for your GPU, 5V, etc. Electricity to electricity. But PSU's today aren't as efficient because although they convert electricity to electricity, they also convert some of that first electricity into heat, thus needing fans..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.
Last edited by Freezer7Pro (2008-06-12 12:28:29)
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
No, in that aspect, you're right. That's an example of electricity energy converting into heat energy..Sup wrote:
Are you saying electricity doesn't pass through the CPU and that the electricity is not one of the factors why CPU's produce heat?haffeysucks wrote:
No, I think Freezer is right. The conversion is from 120V in the wall socket to the 12V rail for your GPU, 5V, etc. Electricity to electricity. But PSU's today aren't as efficient because although they convert electricity to electricity, they also convert some of that first electricity into heat, thus needing fans..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.
"people in ny have a general idea of how to drive. one of the pedals goes forward the other one prevents you from dying"
I have never seen a 500W 80+ passively cooled PSU. And you are saying you can effectively cool off a 500W 90+ PSU if it would exist?Freezer7Pro wrote:
If it's more efficient, it doesn't produce that heat. Today's 75+/80+ PSUs don't produce much heat at all, enough to be cooled by 15-20CFM passing over some aluminum heatsinks. If there is a 90+ 500w PSU, it could probably even run passively..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.You can't compare a PSU and a CPU in that manner. A PSU just makes electricity to electricity, a CPU does calculations..Sup wrote:
Are you saying electricity doesn't pass through the CPU and that the electricity is not one of the factors why CPU's produce heat?haffeysucks wrote:
No, I think Freezer is right. The conversion is from 120V in the wall socket to the 12V rail for your GPU, 5V, etc. Electricity to electricity. But PSU's today aren't as efficient because although they convert electricity to electricity, they also convert some of that first electricity into heat, thus needing fans.
Well, considering that a 90+ 500w PSU would produce less than half as much heat as an 80+ 500w PSU, yes..Sup wrote:
I have never seen a 500W 80+ passively cooled PSU. And you are saying you can effectively cool off a 500W 90+ PSU if it would exist?Freezer7Pro wrote:
If it's more efficient, it doesn't produce that heat. Today's 75+/80+ PSUs don't produce much heat at all, enough to be cooled by 15-20CFM passing over some aluminum heatsinks. If there is a 90+ 500w PSU, it could probably even run passively..Sup wrote:
But it can't be more efficient if you don't loose the heat doh. Its the same with CPUs, lower temps-higher clock.Freezer7Pro wrote:
Why on earth would they need to get that? The more efficient a PSU is, the less heat it produces..Sup wrote:
Its possible but their cooling bodies will need to get a lot bigger.You can't compare a PSU and a CPU in that manner. A PSU just makes electricity to electricity, a CPU does calculations..Sup wrote:
Are you saying electricity doesn't pass through the CPU and that the electricity is not one of the factors why CPU's produce heat?
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
Sup you tard.
The more efficient something is, in this case PSU's, then the less heat they will produce.
The more efficient something is, in this case PSU's, then the less heat they will produce.
Tell me why aren't there any 500W 80+ passive PSU if they aren't getting that hot? At least i haven't seen any.
Because they are only 80% efficient, and thus create more waste energy (Sound + Heat)..Sup wrote:
Tell me why aren't there any 500W 80+ passive PSU if they aren't getting that hot? At least i haven't seen any.
Exactly. Are you even listening to what we're all saying?The Sheriff wrote:
Because they are only 80% efficient, and thus create more waste energy (Sound + Heat)..Sup wrote:
Tell me why aren't there any 500W 80+ passive PSU if they aren't getting that hot? At least i haven't seen any.
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
We need to get back on topic...
Drykill, a power supply only uses as much power as is required. It should cost the same between the 750w and 600w.
That is if both Units have the same specs, (except wattage) and have the same load on them.
Drykill, a power supply only uses as much power as is required. It should cost the same between the 750w and 600w.
That is if both Units have the same specs, (except wattage) and have the same load on them.
Last edited by The_Sniper_NM (2008-06-12 12:38:33)
Thank you.The_Sniper_NM wrote:
We need to get back on topic...
Drykill, a power supply only uses as much power as is required. It should cost the same between the 750w and 600w.
That is if both Units have the same specs, (except wattage) and have the same load on them.