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25 Ιουλ 2010 · A 64-bit machine should be able to address up to 2 64 addressable units (in architectures designed over the last few decades, addressable units are invariably bytes, a.k.a. octets). If you define a "gigabyte" as 2 30 addressable units, then yes, 2 34 gigabytes would be another way to express the same count.
20 Ιουλ 2022 · The x64 architecture can utilize a total of 2^64 bytes, equaling to 16 billion gigabytes (16 exabytes) of memory. The much greater resource utilization makes it suitable for powering supercomputers and machines that need access to vast resources.
28 Μαρ 2010 · In a 64bit processor, the processor can (in theory) use 64 bits to address memory, or 2^64 bytes of addressable memory. I believe that amounts to 16 Exo Bytes, which is a huge amount that is almost to the point of counting the amount of molecules in your machine.
8 Φεβ 2019 · If you’re new to computers (or even if you’re not), the names that get applied to different memory sizes can seem strange. Whether you’re talking about an 8-megabyte memory card, a 500-gigabyte hard drive, or a 1 terabyte SSD drive, the terms always seem abstract and random.
26 Δεκ 2019 · Most computers made in the 1990s to early 2000s have a 32-bit system that can access 2^32 (or 4,294,967,296) bytes (units of digital information) of RAM (random access memory). Meanwhile, a 64-bit processor can handle 2^64 (or 18,446,744,073,709,551,616) bytes of RAM.
The article talks about how the processor can reference (or address) the memory. In all modern architectures memory is byte-addressable, which means that every byte-sized memory cell has a number (its address), which the CPU uses to identify that cell.
For example, there's an Intel 32 bit architecture that can address 64 GB of physical RAM, and no Intel 64 bit architecture that can address anything near 2^64 bytes of physical or virtual memory, while 32 bit PowerPC supported 2^53 bytes of virtual memory.
