S.no 32-bit 64-bit
1. Can access 2^32 memory addresses or 4GB RAM Can access 2^64 memory addresses which means 18billion GB RAM.
2. Can perform fewer calculations per second Capable of performing many calculations per second because of multiple cores
3. The system can be slow while using many applications Great speed even while using heavy applications like high-graphic games or Photoshop
BY Best Interview Question ON 20 Apr 2019