IDF: Inside Nehalem

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With the memory controller removed from the Northbridge chip, this also means no more front-side bus. Instead, Nehalem now uses a new interconnect that Intel calls "QuickPath." QuickPath is a point-to-point interconnect that Intel claims is much faster and more scalable than a front-side bus-based interconnect.

  

Another change for Nehalem is that it has three levels of cache--as opposed to the two levels of cache we're used to seeing on Intel's consumer-level Intel processors. There is a 64K L1 cache (32K Instruction, 32K Data), a 512K "mid-level" L2 cache (256K Data, 256K Instructions), and the shared L3 cache thats size will depend on the particular version of the processor. Intel is taking a modular approach with Nehalem's design, so it will be easier to manufacturer different versions of the chip with different features and L3 cache sizes. (The slide below titled "Core Designed for Performance" does not show the L3 cache.)

  

  

Nehalem also brings Hyper-Threading back to Intel processors. We haven't seen Hyper-Threading since the good old Pentium 4 days, save for Atom. While Hyper-Threading has in the past been criticized as being energy inefficient, Intel says the current iteration of Hyper-Threading is much more energy efficient. With Hyper-Threading, a processor with four physical cores appears to a system to have eight logical cores. Intel says it is also bringing Hyper-Threading to its Larrabee architecture.
 

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Can't wait to see some folding #'s from this platform

Fold On!!!!!

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 man, this makes me wonder if I should hold off for a couple months. How sweet would it be to be 1 of the first few to get my hands on 1 of these things.

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They will be in short supply and going for a premiem at first.

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If you can hold off, I would: Not to get this processor (which will probably cost an arm and a leg and be in short supply like warlord said), but because it's going to drive the prices way down on everything else.

Expect AMD to be offering bargain-basement deals on their top-end CPUs within two days of Nehalem's launch.

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Very good point 3vi1. I might just go out and get me a core2quad when Nehalem comes out.

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 any word on MB's to support these new cpu's. I would imagine it wouldn't be supported by current MB's with this tri channel memory their talking about along with a few other things.

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Its going to be a new socketConfused

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Intel Engineer: "Look boss! It's super fast and works in LGA775!"

Boss: "You realize we sell chipsets too, right? Throw five more pins on it."

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3vi1:
Intel Engineer: "Look boss! It's super fast and works in LGA775!"

Boss: "You realize we sell chipsets too, right? Throw five more pins on it."

LMAF!!

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bob_on_the_cob:

3vi1:
Intel Engineer: "Look boss! It's super fast and works in LGA775!"

Boss: "You realize we sell chipsets too, right? Throw five more pins on it."

LMAF!!

warlord dies of laughter

 

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