Re: Mac Pro memory sizes
Re: Mac Pro memory sizes
- Subject: Re: Mac Pro memory sizes
- From: Kenneth Bruno II <email@hidden>
- Date: Sun, 11 Jan 2009 17:04:09 -0500
On Jan 11, 2009, at 4:44 PM, julius wrote:
About This Mac says that I have 2GB of internal memory.
Is this 2GB of 64-bit words or 2GB of 8-bit bytes?
I appreciate that GB is Giga Byte but ......
Similarly with respect to the L2 Cache, I have 12 MB per processor,
is that 12 MB by 8 bits or 64 bits?
Although the term byte can be variable depending on architecture, this
is something that is rarely done now. You can be pretty much sure
that when something says byte it is supposed to mean 8 bits.
Now technically a gigabyte (GB) is 10^6 bytes (1,000,000 bytes) but
often people mean 2^20 bytes (1,048,576 bytes). In actuality a
gibibyte (GiB) is 2^20 bytes but it's not used in all the places it
should be used.
Here's some more information for you:
<http://en.wikipedia.org/wiki/Byte>
- Ken
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