Does the 64-bit processor always perform better than 32-bits?

标签：actually   size   sso   always   when   mamicode   amount   memory   nes   

Abstract: What do you think about the question? Does the 64-bits always do better? The answer is NO.

When we talk about 64 bit vs. 32 bit we mean two things

1. Memory addressing, 32 bit can address about 4GB of memory(it has 32 address lines, and each line can represent 0 and 1), or more with extensions. 64 bit can address a vastly larger amount, about 16 exabytes, which is 16 million terabytes, which is a vast amount of memory.
2. The same thing for integer numbers, a 32-bit computer can process numbers up to about 4 billion, a 64-bit computer can process numbers up to 18,446,744,073,709,551,615.

So if you‘re dealing with numbers under 4 billion, and address memory of fewer than 4 GB, 64-bit processors won‘t actually make any difference to you.

64-bit is about size not speed.

Does the 64-bit processor always perform better than 32-bits?

标签：actually   size   sso   always   when   mamicode   amount   memory   nes   

原文地址：https://www.cnblogs.com/gufana/p/12878190.html