Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

To be specific:

Can I:

  1. Install a discrete graphics card on a laptop that does not come with a discrete graphics card?
  2. Teach windows 8 to use the discrete card over the integrated graphics?

To me this is the only downside of my laptop and I would not mind getting any graphics card as long as it is better than the integrated laptop card (an Intel 3000)

The laptop if you need more information is an Asus U46E-BAL6.

share|improve this question
add comment

2 Answers

up vote 2 down vote accepted

Graphics chips usually reside in one of three places:

  1. On the motherboard.
  2. In the CPU / APU
  3. On a dedicated graphics card.

1)
On most older laptops you will find the graphics build onto the motherboard. Replacing those usually comes down to replacing the entire motherboard. Essentially you get a new laptop in the same case. Possible with some laptop models. Usually expensive.

Consider that a no for practical purposes.

2) Many modern CPUs add a graphics core to their CPU. This is the case with your laptop. It has an Intel I5 CPU, with a graphics 3000 core. You can not replace this without replacing the entire CPU.

In your case that might be possible. Asus sells your laptop with three different CPUs: A i3 2310M, i5 2520M and a i5 2410M

If you Intels website compare these three CPU's then you will notice that they have three differently clocked graphics cores. You could replace the laptop with the fastest one sold by Asus, or you could try to use another CPU. The last would need to be supported by the BIOS; it should not use more power; it should not generate more heat.

3) A few laptops come with dedicated graphics cards connected via standadised miniPCI or miniPCIe slots. You can change these if:

  • You have such a (gaming) laptop.
  • And you happen to have the right card which is supported by that laptop.
  • And if the laptop can power it.

The last is non trivial. Some of the gaming laptops need three(!) power bricks. (Max power per standarised laptop PSU is limited and mobile gaming cards can draw up to 100 Watt per card). Some laptops even support crossfire or SLI.

The second bullet point is more subtle: miniPCI and miniPCIe have been standarided. But many laptop do not support all devices. It seems to come down to 'do I have my own brand card 1? No? then check if I have my own brand card 2 No? FAIL TO START. Even if they technically should work.

People without regard for their hardware have worked around this by booting their laptop, and inserting a miniPCIe card after it was past POST. That falls under the heading of 'do not try this at home' and 'quite impractical to do'.

Then there are a few rare laptops with MXM. Quoting wikipedia on that:

A Mobile PCI Express Module (MXM) is an interconnect standard for GPUs (MXM Graphics Modules) in laptops using PCI Express created by MXM-SIG. The goal was to create a non-proprietary, industry standard socket, so one could easily upgrade the graphics processor in a laptop,

It is used in some Clevo and ALien ware gaming laptops.

That completes the answers to the three points I started with, namely where graphics parts normally reside. However since a few years there is a new bus on the market: thunderbolt

I see no technical reason why you could not connect any graphics card to that. It should be initialised early enough to be used by the OS.

In praxis it might be a bit harder to use: For once the BIOS needs to work properly. With laptops that is not a given.

However there are external cases on the market using powerful full sized desktop GPUs connected via thunderbolt. example.

It will be interesting to get this to work, but it is not a portable solution.

(I noticed you have a laptop which design point is 'superior portability'. Still, for completeness sake...)

That leaves your second question: I do not have any experience with windows 8 yet. But I see no reason why could you not do this if you have a laptop with MXM or Thunderbolt. (your laptop has neither of those two).

share|improve this answer
add comment

Short answer: No.

Long(er) answer: Laptops don't have any standard expansion bus, so there is no way to add a discrete graphics card. Even on Laptops with integrated and dedicated graphics, both sets are on the motherboard.

share|improve this answer
2  
That's not entirely true. Some laptops do use the MXM standard which allows for exchangeable graphics cards, but this is usually limited to 15" and larger gaming laptops and workstations. From what I can see, the ASUS U46E does not have an MXM slot. –  Indrek Nov 3 '12 at 15:21
    
Some also use band tunneling to copy the discrete frame buffer to the integrated one. In that case the discrete video card usually just sits in a MiniPCI-E slot. They are easily upgradable. Sometimes there is a low-end model of the same laptop which doesn't include the discrete graphics. Upgrading is as simple as in a desktop PC. –  OCDtech Mar 7 '13 at 16:09
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.