Laptop GPUs are soldered to the motherboard and hence its not upgradeable. As far I know there are no laptops on the low to mid range with options for GPU upgrade.
did u even see the link i posted? alienware, msi ,clevo etc have the ability to upgrade gpu, cpu etc
there are tonnes of mid range laptops which can be upgraded
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Desktops will always be way ahead of laptops. You cannot upgrade the GPU and CPU of a laptop. So that ends the question of upgradabilty. It's true that for majority of the people out there a laptop will suffice. But that doesn't mean the desktops are useless.
not all laptops are upgradable but some are
i never said desktops are useless
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Laptops have their uses though, portability is a big factor for people like me, especially for browsing and stuff like that.. thats why i got myself a mid end ultrabook..
but gaming sucks on a laptop, my 36k rig (1.5 year old) can beat the crap out of most 50k laptops in games
like i said depends on config, a desktop i3 = an intel mobility i5 (m-series only not ulv) cpu
as for gpu, if u use an older ddr3 desktop gpu it cant beat a gddr5 laptop gpu
so it all depends on the config
if u have a 50k rig with a 2500k its one of the best cpus even today and beats the crap out of most laptops and even desktops
heat, upgradability on the other hand is a totally different story