Which uses more electricity. Desktop computer or laptop??

[TinkerBell]

Just wondering really as I thought it would definately be the laptop that would use less electricity, but does anyone actually know which uses less electricity?

Does anyone try and cut down on the electricity being used in your houses, like turning the sockets off and turning things off standby?

[vix]

Originally Posted by TinkerBell

Does anyone try and cut down on the electricity being used in your houses, like turning the sockets off and turning things off standby?

Nope, used to turn my computer off for a bit but now that stay on, most stuff is on standby.

Parents do my head in because all their electrical stuff is turned off and unplugged when not in use.

[divine]

I'd go with laptop on the basis it will generally use components geared for lower power rather than high performance though I don't know if any efficiency or lack of via the battery would have a significant effect.

[SidewinderINC]

My laptop PSU is 85W

My PC's PSU is 850W

I think that's my answer

[TinkerBell]

Originally Posted by SidewinderINC

My laptop PSU is 85W

My PC's PSU is 850W

I think that's my answer

I am loving that answer! I think my computer is going to be redundant for a while It isn't just the PSU either as with a PC you have to run the monitor as well.

Electricity wasting machines!

Vix I know what you mean, that extreme would annoy me, although I don't leave my computer on when I am not using as I don't see the point. Never have though

Edit: Yeah I have Leo, but how much do they cost! May as well buy a cheaper laptop and have it plugged into the power socket all year!

[semi-pro waster]

Originally Posted by SidewinderINC

My laptop PSU is 85W

My PC's PSU is 850W

I think that's my answer

It's not quite fair to imply that the PC uses 850w though, you're absolutely right that the laptop will be far lower in power consumption terms but the PC will still only draw from the wall what it needs regardless of whether you've got a 300w PSU or a 1.3kw PSU (assuming in both cases that the systems nominal load is covered by the 300w).

Short answer is that the laptop will use less power, usually a lot less but the difference might not be hugely noticeable on power bills. You might also have to factor in time taken to do tasks depending on your uses - suppose for a second you're doing a 3D render and it takes 10 minutes on your desktop which uses 300w but 35 minutes on your laptop which uses 85w, suddenly it is a whole lot less clear-cut which is the best overall (nb I haven't worked out the figures, it's just an example).

[SidewinderINC]

Originally Posted by semi-pro waster

It's not quite fair to imply that the PC uses 850w though, you're absolutely right that the laptop will be far lower in power consumption terms but the PC will still only draw from the wall what it needs regardless of whether you've got a 300w PSU or a 1.3kw PSU (assuming in both cases that the systems nominal load is covered by the 300w).

Short answer is that the laptop will use less power, usually a lot less but the difference might not be hugely noticeable on power bills. You might also have to factor in time taken to do tasks depending on your uses - suppose for a second you're doing a 3D render and it takes 10 minutes on your desktop which uses 300w but 35 minutes on your laptop which uses 85w, suddenly it is a whole lot less clear-cut which is the best overall (nb I haven't worked out the figures, it's just an example).

Oh of course, but I tried to run the system on a 400W PSU and it wouldn't go so I know it's drawing more than that.

My comment was more that the laptop can ONLY draw up to 85W wheras the PC will use a lot more most of the time.

[Mark]

Originally Posted by SidewinderINC

Oh of course, but I tried to run the system on a 400W PSU and it wouldn't go so I know it's drawing more than that.

Probably not actually, unless it's SLI/Crossfire or heavily overclocked.

[leowyatt]

laptop without a doubt. If anyone has seen the macbook adverts it says that uses something like 1/4 of the power of a light bulb

[SidewinderINC]

Originally Posted by leowyatt

laptop without a doubt. If anyone has seen the macbook adverts it says that uses something like 1/4 of the power of a light bulb

Yeah, the new macbooks run at 60W peak, my macbook is 85W peak as I say.