Squeezing thru congested traffic is a hallmark of a busy city life. Technology too isn’t spared. In all the advancements one can churn from the 8086 to the latest multi-processor chips, there too remains its bottleneck. This is the compatibility issue that one might fail to see.
Unlike Windows, Linux and MacOS has for many years adopted the 64-bit super highways for data-flow thru its compatible hardware and software. In order for a smooth and steady flow of traffic, the OS, hardware and software should effectively flow along the 64-bit super-highway. Any incompatibility results in a bottleneck.
32-bit limitation for Windows exists in its 4GB access to the RAM while 64-bit versions flows thru the faster RAM (as compared to swap file ie. HDD) upto 8GB or more !