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Apple Computing Products:
macOS - Notebook Hardware
Noob questions about mac notebooks
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<blockquote data-quote="jamestuttard" data-source="post: 150081"><p><strong>L2</strong></p><p></p><p>L2 Cache is an amount of very fast RAM located inside the proccessor. because RAM (even the DDR Stuff) is so slow in comparison to the things going on inside the proccessor it makes a lot of sence to have a nice large amount of quick access stuff inside the proccessor, to act as a buffer for the data coming in from the RAM. ie the date goes from the RAM to L3 (if there is any) into the L2 - which is nice and big, then goes into the L1 etc when the proccessor needs it. </p><p></p><p>now practically what does this mean? it means that the more L2 you got, the faster the computer goes, i'm talking about a very real speed kick all atributed to what seems like a small amount of RAM. 512Kb has become the standard size, Intel and AMD use only 256Kb on thier budget models, and thats one of the reason they are so slow. the more expensive proccessors have 512 or more, I think the itanium's and Zeons have 1 Mb or more of L2 - very high performace. If I remember correctly the G5 comes with 1 Mb.</p><p></p><p>so more L2 = faster proccessor. </p><p></p><p>hope that helps!</p><p></p><p>btw just got my first mac, an iBook and its Stunning!</p></blockquote><p></p>
[QUOTE="jamestuttard, post: 150081"] [b]L2[/b] L2 Cache is an amount of very fast RAM located inside the proccessor. because RAM (even the DDR Stuff) is so slow in comparison to the things going on inside the proccessor it makes a lot of sence to have a nice large amount of quick access stuff inside the proccessor, to act as a buffer for the data coming in from the RAM. ie the date goes from the RAM to L3 (if there is any) into the L2 - which is nice and big, then goes into the L1 etc when the proccessor needs it. now practically what does this mean? it means that the more L2 you got, the faster the computer goes, i'm talking about a very real speed kick all atributed to what seems like a small amount of RAM. 512Kb has become the standard size, Intel and AMD use only 256Kb on thier budget models, and thats one of the reason they are so slow. the more expensive proccessors have 512 or more, I think the itanium's and Zeons have 1 Mb or more of L2 - very high performace. If I remember correctly the G5 comes with 1 Mb. so more L2 = faster proccessor. hope that helps! btw just got my first mac, an iBook and its Stunning! [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Noob questions about mac notebooks
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