Multiple MacDailyNews readers have confirmed the following dates:
Shipment Date: Nov. 11, 2009. Delivers by: Nov. 17, 2009
The Intel Core i5 or i7 processor incorporates four processing cores onto one die, so data doesn’t have to travel far to get from core to core. These “Nehalem” processors include the following features:
• 8MB of shared L3 cache, which boosts performance by keeping data and instructions in a fast-access cache that is available to all four processor cores.
• An integrated memory controller, which allows faster access to data stored in memory by connecting the memory controller directly to the processor, eliminating any middle man and significantly increasing memory bandwidth.
• Turbo Boost, a dynamic performance technology that automatically speeds up the cores in use when other cores aren’t needed.
The Intel Core i7 processor also features Hyper-Threading technology, which allows two threads to run simultaneously on each processor core, providing eight virtual cores for increased performance.
More info about Apple’s powerful new iMacs here.
[Thanks to MacDailyNews Readers too numerous to mention individually for the heads up.]
@bitter
you’re gonna have to yell real loud before anyone at Apple hears you.
I can barely hear you myself over the whooping and hollaring going on from those were told their new Macs are on the way.
Meanwhile bitter blu sulks away
Neither bitter or cw use macs, they’re PCs who stumbled in from denial
What the heck with blu ray on a tiny 27 inch screen. you got to sit two feet away for it to be of any advantage. If you want it for TV and sit at a normal range of 7 or 8 feet you can’t see the difference in 720P and 1080P. I have a playstation blu ray and a 60 in Pioneer Kuro. Got to sit within 10 feet for that to make any difference. Blu ray is over rayted I say.
Thanks ping… I’d prefer the i7 anyways.
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@ johnsonville
Thanks for the tech explanation. And don’t call me Shirley.
Ralph, you’re welcome!
Have fun!
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My i7 is on its way!
Someone published Geekbench scores on an i5 with four gigs of RAM on a Mac Rumors thread. It scored 51% faster than the new Core 2 Duo 3.06GHz. That’s 6496 vs 4297.
I think an i7 with eight gigs of RAM might best that!
My MDD Dual G4 scores around 1048. Hmmm. I think I might miss the Windtunnel background noise. It reminds me of a fast taxiing Convair 880.
I’m so giddy my stomach is fluttering!
Ours can’t come quickly enough! We still get good performance out of the 2007 iMac (especially with the new system updates, wow), but the i7 is going to be a real treat. I only hope it doesn’t need too much fanning.
I have an aging 2.5Ghz G5 at home. It runs Leopard, and CS3 well enough, but at work I have a 2009, 2.66 GHz Intel Core 2 Duo iMac, with 4 GB of RAM. My whole art dept is using them now. I have found for most graphics work, yes, even Photoshop, these machines are adequate. I would still prefer a Mac Pro, but in this bad economy, we’re lucky they didn’t give us all Pentium Pro machines, running Windows 95. based on my experience with the iMac at work, I decided to order an i7 iMac for my freelance at home. Its an iMac, but it will still blow the doors off my old G5, all 9 fans included.
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So, with i7’s HyperThreading on a 4 core machine, how should I expect 8GB of RAM to be distributed? When the machine is being pushed hard (video codec or something), wouldn’t the resultant allocation of only 1GB per core perform slower than 2 GB per core on an 8GB i5? Will I have to upgrade to 16GB to actually take advantage of HT, or will the OS handle this intelligently?
Jon C: So, with i7’s HyperThreading on a 4 core machine, how should I expect 8GB of RAM to be distributed? When the machine is being pushed hard (video codec or something), wouldn’t the resultant allocation of only 1GB per core perform slower than 2 GB per core on an 8GB i5? Will I have to upgrade to 16GB to actually take advantage of HT, or will the OS handle this intelligently?
Don’t worry about that. Memory is not partitioned among the cores (or the virtual ones with HyperThreading).
Instead all the cores will “see” the same memory and use it concurrently.
The speedup through multiple cores is the result of – for instance – an image transformation breaking up the image into parts and handing each of these parts to a separate core to process. So additional cores don’t need any significant amount of additional memory (beyond a few megabytes for management and stacks), they just can work faster on the same data in memory than a single core could on its own.
arrived this morning!!!
Time to clean up the old G5 powermac… anyone need this thing?
ping: hey, thank you for your very helpful reply. i7 it is, then.
You’re welcome, and have a lot of fun!
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G4Dualie
Sorry, dude…YOU ARE WRONG !
I’ve going to upgrade from a G5, but nice try anyway incorrectly identifiying me as a PC user. NEVER OWNED a PC.
But I did have a TRS-80, Color Computer, Vic 20, Atari 400, Atari 800, and an Amiga, before I got the G5.
By the way the Amiga with 4,096 colors was even MORE insanely great, than the early macs– which were BLACK AND WHITE….cause Steve Jobs ain’t ALWAYS right.