1. Theoretically, the running speed of a 64-bit system is twice that of a 32-bit system.

A 2.32-bit system supports 4G at most, but the actual memory is 3.25G.

3.64-bit system supports 4G8G16G32G64G128G256G memory, which is theoretically unlimited, as long as you have enough memory slots on the motherboard.

4. Then there is the problem of software compatibility. The 32-bit operating system is basically compatible with civil software, and the 64-bit operating system is worse, but the compatibility of the 32-bit operating system and the 64-bit operating system of Win7 is basically the same at present. The new Win8 system, whether it is a 32-bit or a 64-bit operating system, needs to be improved.

Win7 system, whether 32-bit or 64-bit, is a very mature system and the mainstream system at present. The landlord can use it boldly. The only thing to note is that computers in the middle and above range are 64-bit systems, and computers below the middle range are 32-bit systems.