Nvidia GTX 480M info released

[3dcandy]

No, sorry, you're completely wrong. a 60W energy saving bulb produces exactly the same amount of heat as a 60W normal bulb, however a 15W energy saving bulb gives off a similar light to the 60W normal bulb but puts out less heat, because its using less power.

A 280GTX mobile processor, which afaik a 280m was massively cut down, probably did not use 100W, though I can't remember anything specific about it to be honest.

The 480GTX runs hotter than a 280GTX because it uses more power, the temperature is neither here nor there.

Under watercooling the 480gtx doesn't get much hotter than a 5870 under load under water cooling, its the heatsink/shroud/blower style thats beyond its limits and causes the high temperature, not the power. Its got roughly 60% higher power usage thana 5870, and 60-70% higher surface area to transfer that heat from, meaning if you can remove the heat effectively theres not going to be a huge amount of difference.


Thing is, a 352SP 465gtx can barely beat a 275gtx, what about one clocked almost half as fast, its not going to be faster than a 9800gtx+ to be honest, and isn't that exaclty what Nvidia has been using as their top end mobile gpu anyway, except with far lower power output.

As with so many other things, its more important to MARKET the availability of new products, than for them to be viable options or sell large amounts.

They don't want people to say "Fermi's so hot you can't even get a laptop version" , so they throw a bit of money/help to a few companies to make a few showcase laptops, lets be honest, a Clevo 480M sli laptop isn't going to be selling by the thousands.

nope, lightbulbs have different heat outputs depending on the technology, a 60w led lightbulb emits very little heat compared to a filament bulb. however, regarding tdp and chips then they are roughly equivalent, give or take a percentage or so.

 

[deusexlumina]

Sorry, I didn't make myself quite clear enough. Although heat is proportional to power, that only works with identical items.

Efficiency plays a massive role. For example a 60W fluorescent bulb does not generate the same amount of heat as a normal filament light bulb. AGreed?

The gtx480's have much beefier heatsinks and coolers than the gtx 280's ever did. Reason? They generate more heat. That does not necessarily means it consumes more power.

No, sorry, you're completely wrong. a 60W energy saving bulb produces exactly the same amount of heat as a 60W normal bulb, however a 15W energy saving bulb gives off a similar light to the 60W normal bulb but puts out less heat, because its using less power.

A 280GTX mobile processor, which afaik a 280m was massively cut down, probably did not use 100W, though I can't remember anything specific about it to be honest.

The 480GTX runs hotter than a 280GTX because it uses more power, the temperature is neither here nor there.

Under watercooling the 480gtx doesn't get much hotter than a 5870 under load under water cooling, its the heatsink/shroud/blower style thats beyond its limits and causes the high temperature, not the power. Its got roughly 60% higher power usage thana 5870, and 60-70% higher surface area to transfer that heat from, meaning if you can remove the heat effectively theres not going to be a huge amount of difference.


Thing is, a 352SP 465gtx can barely beat a 275gtx, what about one clocked almost half as fast, its not going to be faster than a 9800gtx+ to be honest, and isn't that exaclty what Nvidia has been using as their top end mobile gpu anyway, except with far lower power output.

As with so many other things, its more important to MARKET the availability of new products, than for them to be viable options or sell large amounts.

They don't want people to say "Fermi's so hot you can't even get a laptop version" , so they throw a bit of money/help to a few companies to make a few showcase laptops, lets be honest, a Clevo 480M sli laptop isn't going to be selling by the thousands.

nope, lightbulbs have different heat outputs depending on the technology, a 60w led lightbulb emits very little heat compared to a filament bulb. however, regarding tdp and chips then they are roughly equivalent, give or take a percentage or so.

you're all wrong.

 

[Spazzfish]

you're all wrong.

Then enlighten please

 

[Rroff]

I don't know about other makes but the clevo laptops have substantial copper cooling arrays - adds a bit to the weight but you don't exactly buy a laptop equipped with a high end GPU on the strength of its portability in laptop terms. This can easily handle 100watt removing the heat from the chassis and expelling it out the back... you might get rather warm knees tho.

You will get around 45 minutes of gaming on battery with that.

 

[Alexrose1uk]

Yep I actually know a few people enquiring on these already for several Clevo machines. There is a POSSIBILITY there will be a few machines getting them, although only a few have been announced so far, and better power bricks may be needed (people after this level of performance often aren't after a mobile setup, just a more portable one).

I've heard rumours on the gravevine a single GTX 480m will be about 20% slower on average than GTX285m SLI, which means the card is about 20-30% faster than the GTX285m.

We shall see, Im waiting to see what performance and cost will be like before I even consider finding out whether its possible for my machine to take them (mxm wise it will, but whether a BIOS, power brick or new heatsink assembly will be produced is another thing).

The market for these isnt huge, but thats not to say it doesnt exist!

 

[Greebo]

No, sorry, you're completely wrong. a 60W energy saving bulb produces exactly the same amount of heat as a 60W normal bulb, however a 15W energy saving bulb gives off a similar light to the 60W normal bulb but puts out less heat, because its using less power.

As mush as I greatly respect your computer knowledge and I sincerely mean that, you are wrong about the lightbulbs.

The reason the energy saving bulb is only a 4th or 5th less power is that it is much more efficient and hence tunring more of its energy into light and less into heat.

A filament lightbulb converts over 90% of its power into heat and less than 10% into light., It is hugely inefficient. If there was such a thing as a 100% lightbulb it would not generate any heat.

Heat is a sign of a waste of energy (unless that is what you are aiming for)

Flurescent bulbs are much more efficient and generate less heat per watt inputted versus filament bulbs.

I don;t know whether the 280 is more or less energy efficient than the 480 but I was just pointing out that even if both of them drawed the same power from the mains, it doesn;t follow that both would produce the same amount of heat.

 

[Spazzfish]

As mush as I greatly respect your computer knowledge and I sincerely mean that, you are wrong about the lightbulbs.

The reason the energy saving bulb is only a 4th or 5th less power is that it is much more efficient and hence tunring more of its energy into light and less into heat.

A filament lightbulb converst over 90% of its power into heat and less than 10% into light., It is hugely inefficient. If there was such a thing as a 100% lightbulb it would not generate any heat.

Heat is a sign of a waste of energy (unless that is what you are aiming for)

Flurescent bulbs are much more efficient and generate less heat per watt inputted versus filament bulbs.

I don;t know whether the 280 is more of less energy efficient than the 480 but I was just pointing out that even if both of them drawed the same power from the mains, it doesn;t follow that both would produce the same amount of heat.

After reading up more on phosphor and gas, this is correct.
This also seems quite credible a source:
http://www.bettergeneration.com/efficient-appliances/energy-saving-lightbulbs.html

 

[GreatAuk]

As mush as I greatly respect your computer knowledge and I sincerely mean that, you are wrong about the lightbulbs.

The reason the energy saving bulb is only a 4th or 5th less power is that it is much more efficient and hence tunring more of its energy into light and less into heat.

A filament lightbulb converts over 90% of its power into heat and less than 10% into light., It is hugely inefficient. If there was such a thing as a 100% lightbulb it would not generate any heat.

Heat is a sign of a waste of energy (unless that is what you are aiming for)

Flurescent bulbs are much more efficient and generate less heat per watt inputted versus filament bulbs.

I don;t know whether the 280 is more or less energy efficient than the 480 but I was just pointing out that even if both of them drawed the same power from the mains, it doesn;t follow that both would produce the same amount of heat.

But the light gets turned into heat eventually. So you could think of it as a 60W heater, it just makes some light as an intermediary step.
I think: P=VI, and V=IR so P=I^2 R - so the power relates to the resistance, and what does resistance do? makes heat. if something is 100W it transforms 100W of electrical energy to 100W of something else energy, and all those other forms eventually revert to heat.

But surely in chips all the energy goes to heat energy anyway, there's hardly lights shining out of it everywhere and a massive speaker on the back.

 

[Meaker]

IFB - Physics fail.

 

[Meaker]

But the light gets turned into heat eventually. So you could think of it as a 60W heater, it just makes some light as an intermediary step.
I think: P=VI, and V=IR so P=I^2 R - so the power relates to the resistance, and what does resistance do? makes heat. if something is 100W it transforms 100W of electrical energy to 100W of something else energy, and all those other forms eventually revert to heat.

But surely in chips all the energy goes to heat energy anyway, there's hardly lights shining out of it everywhere and a massive speaker on the back.

The light is most likely to escape unless its a room without a window.