I'm currently running 16GB on my Windows 7 PC. However, when I open Photoshop > Preferences > Performance, it tells me under the Memory Usage tab that Available RAM is 3255MB.
Why is only 3GB available to PS when I know I have a lot more than that?
OK, then next thing to do is to check the Photoshop preferences and look at the performance settings which includes the RAM usage. How is that set?
Edit: From your original post, I see that the top line "Available RaAM" is reporting the 3.2 GB, so, under Help>About Photoshop, what is reported for version? Does it include the "x64" descriptor?
Figured it out (I think), for some odd reason I was running 32-bit Photoshop. Seems at installation both 32-bit and 64-bit were installed, but the 32-bit became the default desktop icon.
Now running the 64-bit version, and currently downloading updates...but I think this should solve the problem.
Figured it out (I think), for some odd reason I was running 32-bit Photoshop. Seems at installation both 32-bit and 64-bit were installed, but the 32-bit became the default desktop icon.
Now running the 64-bit version, and currently downloading updates...but I think this should solve the problem.
Yup, there you go. I know I ran into this as well, with both installed, the desktop icon for some reason pointed to the 32-bit version.
... the desktop icon for some reason pointed to the 32-bit version.
This would probably be so that the default launched would be the most likely to run regardless of current OS, RAM, or competing applications ...
That would seem to make sense, but if the app is installing the 64-bit version, that means that the OS and system is capable of running it, and certainly the 64-bit app is preferred from a performance standpoint, so defaulting to the 32-bit version, without cuing in the user, seems weird. FWIW, I don't know if this behavior is still relevant to CC, or if it is specific to the now-obsolete CS6.
I suspect the difference will be moderate with most files; once you get to the point in file size where you were previously hitting the 32-bit RAM limits, the difference will be night and day.
