64 AND 32 BIT DIFFERENCE
Ø 32-bit hardware and software is often referred to as x86 or x86-32.
Ø 64-bit hardware and software is often referred to as x64 or x86-64.
Ø 32-bit systems utilize data in 32-bit pieces while 64-bit systems utilize data in 64-bit pieces. In general, the more data that can be processed at once, the faster the system can operate.
IMPORTANT TO KNOW
For users who have 32 bit OS installed on their system, you will only be able to access 3.5 GB RAM no matter how much RAM you have Physically installed. In order to access full RAM, you need to clean install 64-bit version of Windows and there is not other way around this. Now before moving forward with the solutions for users who 64- bit version Windows and still not able to access full RAM, first check which type of operating system you have installed
You must use 64 bit of OS when you have RAM more then 2GB
A big difference between 32-bit processors and 64-bit processors is the number of calculations per second they can perform, which affects the speed at which they can complete tasks. 64-bit processors can come in dual-core, quad-core, six-core, and eight-core versions for home computing. Multiple cores allow for an increased number of calculations per second that can be performed, which can increase the processing power and help make a computer run faster. Software programs that require many calculations to function smoothly can operate faster and more efficiently on the multi-core 64-bit processors, for the most part.
HOPE ABOVE STATEMENT GIVES YOU GOOD BREATH