So is the PC just an inefficient heater, then? Even my aluminum case is cold to the touch. If I didn't have so many fans (10 in total), would it make the room hotter?
I'm asking because I often see it claimed that PCs make great space heaters, but in my experience, this one plain doesn't. Under full load, it should draw quite a bit of power, but it outputs much, much less heat than lower-energy dedicated space heaters. I'm tempted to find my Kill-A-Watt and see what it says.
There's no such thing as an inefficient heater. All the energy your computer uses must end somewhere, and that somewhere can only be sound or heat. The sound output is usually very low, and as GP explained, absorbed by walls and converted into heat as well. The exceptions are any long-range EM emitters, like WiFi and Bluetooth, which are still converted into heat but not always in the same room or house. So it is only the case and fan design which causes a difference in perceived heat.
Also, I doubt your dedicated heaters are lower-energy than your computer. Even those compact heaters for 10€ are usually 2kW or more, and so are hair dryers.
According to this old benchmark by Phoronix (which was even linked by Slashdot), the i7 is more power-efficient than the ARM Cortex A9 in PandaBoard. The i7 got 85 Mop/s per Watt, while the ARM managed only 38.
The advantage of low-power processors like ARM's is low power consumption when idle, which admittedly is where most computers (and tablets, phones, etc) spend most of their time.
I guess that's why all the low-power Pentiums with two cores and no hyperthreading have about ten or twenty reviews on Newegg, and all the Core I7s that score 5x higher on Passmark and use 3x as much power, while costing several times more, have hundreds of reviews.
On Amazon it's the same pattern, with 47 reviews for the bitchin' fast processor and 7 for the futuristic low-power one.
I'm also noticing that the difference between the best GPU/CPU and the second-best model is a margin of 30-40% on a good day, just like it has been for the last decade.
You keep using that word...
A processor which does 5x as much and uses 3x as much power is more efficient.
I imagine the first fusion-powered car will make it as well.
Fusion powered cars give me the weirdest boner. Like a car that could operate for a hundred years without any fuel... is just plain sexy!!! I could program my car to drive nonstop and I would never have to pay for rent as long as I stayed off toll-roads.
What, don't tell me the fusion-powered car won't be flying. It has to be, they promised it.
The "spock" tag has been deprecated in favor of the less implementation-specific "eyebrow" tag. Optionally use the "height" attribute with the following values: spock, jeeves, therock, connery, or scully.
Nobody protests Amazon being included in the search bar in Firefox because nobody uses Firefox to search for local data. Local and remote searching should have a good clear line between them. It should take an active effort on the users part to merge them.
Is there any reason for this except "this is how we've always done it"?
You could buy it weeks ago, it just gets shipped now.
For normal people, the point of "buying" means you now have something and you can use it immediately. For Apple customers, the point of "buying" is giving money to Apple. The actual shipping is irrelevant.
and allow Communist infiltration, Communist indoctrination, Communist subversion and the international Communist conspiracy to sap and impurify all of our precious microchips.
Somebody makes microchips out of our precious body fluids? Yuk!
Having just finished it, I support this notion. It even has great potential for a trilogy. Unfortunately, it has no major conflict, so I it's more like a documentary than a Hollywood movie.
I see the US military complex is making good use of the SCC strategy: introduce lots of little flaws, so that nobody realizes they don't need the product anyway.
Slashdot Mirror
Nathan Fillion for Han Solo!
Then mute him and have William Shatner do a voiceover!
Yes, but not being able to conceal an affair doesn't speak well for his performance as a security agent.
And in case he voluntarily admitted to it, neither does him having a conscience.
So is the PC just an inefficient heater, then? Even my aluminum case is cold to the touch. If I didn't have so many fans (10 in total), would it make the room hotter?
I'm asking because I often see it claimed that PCs make great space heaters, but in my experience, this one plain doesn't. Under full load, it should draw quite a bit of power, but it outputs much, much less heat than lower-energy dedicated space heaters. I'm tempted to find my Kill-A-Watt and see what it says.
There's no such thing as an inefficient heater. All the energy your computer uses must end somewhere, and that somewhere can only be sound or heat. The sound output is usually very low, and as GP explained, absorbed by walls and converted into heat as well. The exceptions are any long-range EM emitters, like WiFi and Bluetooth, which are still converted into heat but not always in the same room or house. So it is only the case and fan design which causes a difference in perceived heat.
Also, I doubt your dedicated heaters are lower-energy than your computer. Even those compact heaters for 10€ are usually 2kW or more, and so are hair dryers.
I would like to inform you that Linux is NOT an operating system!!!
Neither is Windows. It may be a system, but I wouldn't call it operating.
According to this old benchmark by Phoronix (which was even linked by Slashdot), the i7 is more power-efficient than the ARM Cortex A9 in PandaBoard. The i7 got 85 Mop/s per Watt, while the ARM managed only 38.
The advantage of low-power processors like ARM's is low power consumption when idle, which admittedly is where most computers (and tablets, phones, etc) spend most of their time.
I guess that's why all the low-power Pentiums with two cores and no hyperthreading have about ten or twenty reviews on Newegg, and all the Core I7s that score 5x higher on Passmark and use 3x as much power, while costing several times more, have hundreds of reviews.
More efficient processor (Pentium G630), 18 reviews: http://www.newegg.com/Product/Product.aspx?Item=N82E16819116406
Less efficient processor (Core i7-3770K), 357 reviews: http://www.newegg.com/Product/Product.aspx?Item=N82E16819116501
On Amazon it's the same pattern, with 47 reviews for the bitchin' fast processor and 7 for the futuristic low-power one.
I'm also noticing that the difference between the best GPU/CPU and the second-best model is a margin of 30-40% on a good day, just like it has been for the last decade.
You keep using that word...
A processor which does 5x as much and uses 3x as much power is more efficient.
one could avoid a public urination conviction by claiming that draining oneself was "necessary as an emergency measure".
Uromysitisis?
Fusion powered cars give me the weirdest boner. Like a car that could operate for a hundred years without any fuel... is just plain sexy!!! I could program my car to drive nonstop and I would never have to pay for rent as long as I stayed off toll-roads.
What, don't tell me the fusion-powered car won't be flying. It has to be, they promised it.
It's the merger of three major storm systems, one of which happens to have been a category 1 hurricane.
Let me guess, George Clooney and his boat were caught in the middle?
When someone (or something) is beheaded, is the head cut off from the body, or the body from the head?
The "spock" tag has been deprecated in favor of the less implementation-specific "eyebrow" tag. Optionally use the "height" attribute with the following values: spock, jeeves, therock, connery, or scully.
You forgot Teal'c.
Nobody protests Amazon being included in the search bar in Firefox because nobody uses Firefox to search for local data. Local and remote searching should have a good clear line between them. It should take an active effort on the users part to merge them.
Is there any reason for this except "this is how we've always done it"?
In other words, Foundation?
Yes, an OS that can only be used with overpriced hardware, made by the largest company in the world, is clearly socialist.
it forcibly apples
I've never heard "apple" being used as a verb, but your use of it seems very fitting.
Snape never betrayed Dumbledore. Yes, I've heard there are people wrong on the internet, but not on Slashdot!
Unless you want to listen to it.
Its simply not reliable enough to use when peoples lives are at stack.
Just allocate people on the heap, and we're all safe?
No, we'll see turtles.
You could buy it weeks ago, it just gets shipped now.
For normal people, the point of "buying" means you now have something and you can use it immediately. For Apple customers, the point of "buying" is giving money to Apple. The actual shipping is irrelevant.
I haven't seen a non-phone, non-tablet media player in years either.
and allow Communist infiltration, Communist indoctrination, Communist subversion and the international Communist conspiracy to sap and impurify all of our precious microchips.
Somebody makes microchips out of our precious body fluids? Yuk!
The silicon mines are dying. Pentiums are people!
Having just finished it, I support this notion. It even has great potential for a trilogy. Unfortunately, it has no major conflict, so I it's more like a documentary than a Hollywood movie.
Then it is still your friends' fault, not Facebook's. Either don't tell sensitive information to friends, find better ones, or just become asocial.
I see the US military complex is making good use of the SCC strategy: introduce lots of little flaws, so that nobody realizes they don't need the product anyway.