isurvivorz: stop spreading false information.
Djaron: mind to bother you, sir... but... usually, the strong use of conditional and questions implies that the person speaking is NOT being affirmative or spreading information but rather express hypothesis and ask for confirmation.
anyway, what i see is that gog galaxy uses your net connection for downloading 7gb of data, while the manual patch only uses it for 2 gb. Period !
therefor it is completely irrelevant (though it is true anyway) that the 2gb compressd patch unpack itself on the destination computer into a bunch of 7gb sized data bunch to apply then to the game folder installation.
what is relevant is that, no matter HOW you turn and twist it, it is FASTER to download 2gb than 7gb (on same connection, same computer, with the wind in your back and so on)
On very fast dsl connection, then, the download/applying time of the glaxy 7gb method would be faster than the unpacking and applying 2gb manual patch (if you really have a poor cpu and hard drive... but if you have such specs on your computer, he wouldnt really be able to play witcher 3)
maybe on your country, very high speed dsl connection is trivial and well spread. in some country, i assure you "size matters", when it comes to download.
therefore i dont see WHY they choosed to make galaxy download the unpacked patch files, instead of making it download the patch, launch/unpack the patch locally then aplly the unpacked content on the installation folder.
maybe on smaller games, or smaller patches, or games which uses bunch of smaller files rather than monolithic huge data asset files, it is faster and more convenient in some way.
truth is (i dont care myself, i dont install the 1.07 yet i got mine through good old Gog downloader) it was an issue to many folk here. even an gaming website on my country made an article because/about such huge download size, though incidentally spreading wrongly earned bad reputation to a good game.
yet again regarding my hypothesis about the writing permissions, your dismissal answer would suggest that gog galaxy magically "not write anything of the data it just downloaded" ?
Come oooon, dude... it just downloaded some stuff, of course galaxy WILL have to write it down on the disk at some step of the patching process. It would be strange for an application to download data and not write/store it some/anywhere, just keeping it in ram for fun.
Now, I understand that your English isn't very good, but did you even read what I wrote and fully understand it?
What I was saying isn't about how fast or slow it is to download 2GB or 7GB, nor what I said has anything to do with that. What I was saying, and implying was that he was spreading false information on why the GOG.com setup client is smaller compare to the Galaxy files. Please, read what I wrote and understand it.
yet again regarding my hypothesis about the writing permissions, your dismissal answer would suggest that gog galaxy magically "not write anything of the data it just downloaded" ?
Come oooon, dude... it just downloaded some stuff, of course galaxy WILL have to write it down on the disk at some step of the patching process. It would be strange for an application to download data and not write/store it some/anywhere, just keeping it in ram for fun.
Never in my post did I said anything about Galaxy not overwriting the old files with the new files, OF COURSE it will does that, how else would the game get update? Again, read what I wrote and understand it. What you just wrote make no sense and has nothing to do with what I wrote.
DocDoomII: While Galaxy (and steam for example) simply replace the files completely if they are changed.
MikeMaximus: Just FYI, Steam actually no longer works that way. It has supported differential patching for a while now, but I think it's up to the developer to take full advantage of it. That's probably why the Witcher 3 patch is only slightly smaller on Steam than it is on Galaxy.
It's smaller because Steam uses different type of compression to compress all the files together before putting it onto the server for users to download, it has nothing to do with how the game is patch or how the patch is executed once the files are all downloaded.
Galaxy client downloads pure, uncompressed files to your local machine to update the game, Steam client downloads files that were compressed, once the download finishes, those files get unpacked to a 7GB install, whereas GOG.com let you downloads the heavily compressed setup client which will unpack to a 7GB installation to update the game.
The reason GOG.com does this is to help with the download time, and it is much more efficient this way when it comes to downloading files through web browsers.