Why use a 64 bit system?
Reasons to choose the 64-bit version Computers running 64-bit versions of Windows generally have more resources such as processing power and memory, than their 32-bit predecessors. Also, 64-bit applications can access more memory than 32-bit applications (up to 18.4 million Petabytes).
What is Adobe 64 bit?
Adobe Photoshop CS4 for Windows comes as both a traditional 32-bit application and a 64-bit version for systems with the processor and operating system to run 64-bits. I recently upgraded to a Quad core 3.0 GHz Q9650 system with 8 GB RAM running 64-bit Windows Vista. If you’re curious what I think of 64-bit Photoshop, read on.
What is 64 bit application?
64-bit Applications. When you compile an application, you can specify that it should run on a Windows 64-bit operating system either as a native application or under WOW64 (Windows 32-bit on Windows 64-bit). WOW64 is a compatibility environment that enables a 32-bit application to run on a 64-bit system.