Question: what is the difference between 32 bit and 64 bit jvm?
Answer: 64-bit vs. 32-bit really boils down to the size of object references, not the size of numbers. In 32-bit mode, references are four bytes, allowing the JVM to uniquely address 2^32 bytes of memory. ... But 64-bit mode comes with a cost: references are double the size, increasing memory consumption.