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Why are mobile GPUs more powerful than low profile video cards?

#1Pepys MonsterPosted 11/19/2013 10:49:40 AM
A Radeon 8970M or GTX 780m is better than a 7750. Low profile video cards are bigger. I don't get it.
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#2StormKMDPosted 11/19/2013 10:58:20 AM
Bigger =\= better. This gen of CPUs was concentrated on integrated graphics (haswell didn't so much in terms of performance, but the igpu was upgraded a lot).
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#3JockoPosted 11/19/2013 11:13:00 AM
Pepys Monster posted...
A Radeon 8970M or GTX 780m is better than a 7750. Low profile video cards are bigger. I don't get it.

I get what you're saying. Can a A Radeon 8970M or GTX 780m low profile card be made? Good question.
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#4AltmadragonPosted 11/19/2013 11:24:39 AM
Why wouldn't they be?
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#5GTRagnarokPosted 11/19/2013 11:25:41 AM
The 8970M/780M GPU chip itself is a lot bigger than the HD 7750's GPU. Mobile GPUs need to be in a very slim form factor in order to fit into laptops. They are almost always accompanied by custom designed heatsinks and fans to fit a particular laptop. Desktop GPUs have to be designed to ATX standards, so they can only be so small.
#6PhilOnDezPosted 11/19/2013 11:30:58 AM
A 780m is also going to cost you about $800, vs the $230 desktop card, the 760, it matches. You can barely OC the 780m while the 760 will OC as well as would be expected.

As for using mobile cards in a desktop, it can be done. You buy a PCIe card with MXM slots, either 2 or just 1. If you buy the multislot card you can run the cards in SLI in a single slot card.
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