So the the new 27" i5 is the best regarding upgrading..

[Mustafa86]

All I'm asking is that can I upgrade the i5 to i7 in the future
also the graphics card can I upgrade it to 2 gig after buying the product..?

 

[Hexley]

i5 to i7 maybe

Add more VRAM is a no no

 

[Uhu]

i5 to i7 maybe

Add more VRAM is a no no

the gfx card is exchangeable

 

[kevin2223]

Sure, three years (or one year w/o AppleCare) down the line it might be more worth it, but you're going to pay a high price for these upgrades (if the GPU is available, at all). Plus your warranty will be void should anything be damaged in the upgrade process.

 

[Mustafa86]

I'm not willing to upgrade anything for the meantime
Its a 3+ years or so for me..
Because I'm not going to use it for deep 3d work or something...all Im going to do is regular browsing, gaming and some minor photo editing..
but who knows in the future what I might do..thats why I'm asking about the upgrading options...which looks upgradeable both to i7 and to 2g of video card..

Correct me if I'm wrong.

 

[cherry su]

I'm not willing to upgrade anything for the meantime
Its a 3+ years or so for me..
Because I'm not going to use it for deep 3d work or something...all Im going to do is regular browsing, gaming and some minor photo editing..
but who knows in the future what I might do..thats why I'm asking about the upgrading options...which looks upgradeable both to i7 and to 2g of video card..

Correct me if I'm wrong.

The video card is going to be very expensive, say $300-$400.

 

[Mustafa86]

The video card is going to be very expensive, say $300-$400.

what about from i5 to i7?
is it upgradable?

 

[kevin2223]

As others might suggest, in three years you will probably be better off selling it and recouping the cost to buy a new one. The only Mac that offers easily upgradeable graphics and CPUs (to an extent) is the Mac Pro, and obviously, those upgrades are quite expensive, too.

I found a single ATI 4850 on eBay for $350, it's even difficult to find the 5750 (5850m) part for the last-generation iMacs. Just some things to think about.

Edit: They should only be socketed (someone else can confirm), and all utilize the LGA1155 socket. This is what iFixit says: "Replacing the CPU and GPU is possible to do, but you need to remove the logic board from the computer."

There shouldn't be any heat-related problems as long as you stay at or below 95 watts.