Macboe Posted June 28, 2009 Share Posted June 28, 2009 Basically - if I have the installer for a program, say photoshop trial, which seems to be made to run on windows 32-bit, can that same installer be used on 64-bit versions of windows, without any issues, or decreased performance? Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/ Share on other sites More sharing options...
chacaito Posted June 28, 2009 Share Posted June 28, 2009 Basically - if I have the installer for a program, say photoshop trial, which seems to be made to run on windows 32-bit, can that same installer be used on 64-bit versions of windows, without any issues, or decreased performance? Yes, without any problem. Perhaps the performance will be even better. Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1187406 Share on other sites More sharing options...
Suprjacob Posted June 28, 2009 Share Posted June 28, 2009 Yes, all 64-bit Windows platforms have reverse compatibility with 32-bit programs. They should run perfectly fine whether they are in a 32- or 64-bit version of Windows. Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1187673 Share on other sites More sharing options...
vbetts Posted June 28, 2009 Share Posted June 28, 2009 Yes, without any problem. Perhaps the performance will be even better. It'll run the same. 32-bit programs only run up to like 3.25 gb of ram max. Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1187686 Share on other sites More sharing options...
lastowl Posted July 2, 2009 Share Posted July 2, 2009 i thought in 64 operating system handled the physical ram and virtual so even in 32 programs would use more (in x64 opperating system), or is that only on physical memory up to 3-4gb it will use rather than vm aswell? Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1190720 Share on other sites More sharing options...
Synaesthesia Posted July 2, 2009 Share Posted July 2, 2009 To clarify: an application doesn't know the difference between real and virtual memory. That is all handled/abstracted by the kernel. It just sees a large pool of memory, whatever the type. In a 64-bit OS, there would be much more memory available for all the apps to use, but one 32-bit App/process is still limited to 2^32 bits = 4gb of Memory. The 3.25gb limit mention by Vbetts exists only in 32-bit Windows because of the way windows allocates memory, you only have 4gb - (video card memory). So if you have a 512mb Video card you have 3.5gb available. Windows 64-bit and OS X don't work like that. He's got the right idea though. Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1190754 Share on other sites More sharing options...
Burnz3r0 Posted July 15, 2009 Share Posted July 15, 2009 If you come across any software that was made for x86 platforms it will work on x64 platforms. Only software like Smart FTP *say* that they don't work... Link to comment https://www.insanelymac.com/forum/topic/172644-run-32-bit-app-on-64/#findComment-1200470 Share on other sites More sharing options...
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