Why are there no gaming laptops that use desktop GPUs'?

[hi9580]

Lack of space:

http/www.gigabyte.com.au/products/list.aspx?s=47&ck=104

Heat dispersion:

http/asetek.com/laptop.aspx

Too expensive:

http/www.digitalstormonline.com

No need/interest/get a desktop:

http/www.dell.com/au/p/alienware-18/pd

So why not?

 

[Alex Kelly]

It doesn't make any sense. It would drain battery. If you want a desktop GPU but portable, make a Mini-ITX build.

 

[rgd1101]

because desktop gpu use too much power.

 

[Snipergod87]

Desktop gaming GPU's consume 250 watts + of power, a laptop wont be able to power a GPU, Wont be able to cool a GPU, would have to be massive to fit one inside, and the power brick would have to be gigantic. At this point just get a mini ITX build it would be cheaper and more functional.

 

[velo3100]

4 reasons I can think of

1. Noise - Laptops would make a lot of noise if it had a desktop graphics card
2. Size - The size available in most laptops are too small to fit a desktop graphics card
3. Heat - Most laptops would overheat as the Gpu requires a lot of cooling
4. Battery life - It will greatly shorten battery life.