How big is the Portal 2 download from Steam?

I'm currently in a country where internet access is expensive (New Zealand), and I'm curious if I'll be able to download Portal 2. How big is the download in Steam?

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3 Answers

The system requirements list 7.6 GB for Portal 2. If you already have a Source game the size could be much smaller since the Source engine compromises a large part of the download.

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The amount of data that needs to be downloaded is different than the amount of disk space the game uses once installed. As reported by the installer screen before installing Portal 2 the disk space required during the installation is 11.6GB:

However once you start the download process, the amount of data required is significantly less at 6.6GB. Additionally, I have tested that this download size is not affected if you already have the Source SDK or other Source based game(s) installed.

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Yeah like all the other have said, Need to have Source SDK Base 2007 installed already, and that file is a whooping 4.8Gigs (if i remember correctly - around 4gig range) So I would say Portal 2 is roughly 2.5 gigs