• A 64-bit computer may access 264 distinct memory addresses, or 18 quadrillion bytes of RAM. In other words, it can easily handle any amount of memory larger than 4 GB.
• Because it can handle more data at once, a 64-bit CPU is more capable than a 32-bit processor. A 64-bit processor may hold more computational data, including memory addresses, than a 32-bit processor, allowing it to access over 4 billion times the physical memory.
• ECC memory is frequently referred to as 72 bit memory. Error Correction Check has an additional 8 bits. Non-ECC memory is 64 bits. 168 pin DIMMs are commonly found in 72 bit or 64 bit configurations.

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