Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Is the MacBook Pro 64Bit standard or 32 Bit
- Thread starter iRobby
- Start date
- Sort by reaction score
Your totally right the first 64bit processors were the Intel core 2 duo and everything since (the Intel core duo were 32bit)
I didn't mention about amd due to them not begin used in macs but I totally forgot about the G5 although it was never in a laptop
(I was concentrating on the portable line due to it begin asked in the MacBook pro forum)
Thank you!!
Apple opened my eyes. Having 2 iPhones and an iPad in the past 3 years woke me up frOm the dead.
Nitpickers corner: 32bit has a limit of 4GB of addressable memory. The 3.5GB limitation is an artifact of how windows addresses the screen buffer, and so isn't really relevant here. Also, since the Pentium Pro days, 32 bit intel chips have actually used 36 bits for addressing memory, so the theoretical limitation is 64GB. Virtual address space is still 32 bit, so each process can only address 4GB.
And now I will retire back to my nerd hole and stop bothering all you nice people...
Holy bananas! I think you'll be pleasantly surprised with the speed increase... or your eyeballs will explode. Or both.
I've never used anything but Windows, so I didn't know it was just a facet of windows... Interesting. Nor did I know that other stuff. Good to know, I guess.
They still have 32-bit i7s and i5s, but you are correct. As far as Macs go, after C2D everything has been 64bit
just for the knowledge... while you can only address a maximum of 4gb of ram in a 32 bit space, there were many servers with 32 bit processors that had much much more ram than that. Some would put in multiple processors and just put a dedicated 4gb per processor, but some used a method where data may be stored in 32gb of ram, but the CPU only looks at 4gb of it, the the rest can be swapped in and out of the main four like swap space.... working kind of like how virtual memory does, but in actual large amounts of RAM instead of a hard drive.
Is that true? (and if so, can you provide a model number?)
It didn't sound correct to me, so I looked on intel.com as well as Wikipedia part listings and other sites, and didn't turn up any evidence of 32-bit versions of the i5 or i7 ever existing.
no, there are not 32 bit intel i series processors. They can run 32 bit code though, and 32 bit OSes if you need them to, so maybe some people see them for sale with a 32 bit OS and assume its only a 32 bit processor, but its not, and you can easily just load a 64 bit OS.
Yeah, just double checked and this is true. I was just confused since my Windows XP 32-bit machine has an i5 processor - forgot it's "backwards compatible."