64位的处理器支持多大的内存？

引用自互联网

By definition, a 32-bit processor uses 32 bits to refer to the location of each byte of memory. 2^32 = 4.2 billion, which means a memory address that's 32 bits long can only refer to 4.2 billion unique locations (i.e. 4 GB).

照这样子算，一个32位的处理器所支持的内存大小公式为： 

2^32/1024/1024/1024 = 4 G

 

那么64位的处理器所支持的最大内存为

2^64/1024/1024/1024 = 17179869184 G

17179869184 G = 16777216 T