CPU Options

Intel continues to sell both 45nm Nehalem based Xeons as well as 32nm Westmere models. As a result, Apple offers both in its new Mac Pro lineup. If you aren't familiar with the two architectures have a look here and here.

The entry level single-socket quad-core uses a Nehalem Xeon, the rest of the lineup (all six-core and two-socket quad-core) uses Westmere based Xeons. As a result, the single-socket quad-core Mac Pro has an 8MB L3 cache while the rest have 12MB L3 caches (as well as the other Westmere enhancements). Unfortunately Apple is still slow to adopt AES-NI so one of the major Westmere features goes unused in OS X.

There are other differences between platforms. The quad-core options (Nehalem and Westmere) all support DDR3-1066, only the six-core CPUs support DDR3-1333.

The added cache should help performance but the bigger improvement will be in power consumption. You'll be able to get more cores at the same power levels as the Nehalem Mac Pro, or the same number of cores at lower power.

The single socket systems use a physically different CPU/memory daughterboard, so there’s no hope for those wanting to simply stick in another CPU down the road.

Turbo is still alive and well but the frequency gains aren’t all that great. The single socket quad-core runs at 2.8GHz and can turbo up to 3.06GHz, while the eight-core configuration starts at 2.40GHz and can only turbo up to 2.66GHz.

Roadmap

With the arrival of Sandy Bridge imminent, you might ask - why buy a Mac Pro today? And I might answer, Sandy Bridge isn't imminent for everybody.

In 2008 Intel introduced the Nehalem based Xeon and Core i7 CPUs. This architecture was the basis for the original Mac Pro. From 2008 through the end of 2009, Nehalem was not replaced at the top of the processor stack. There were more affordable derivatives (Lynnfield), but nothing usurped Nehalem's role as the top dog. Having just been updated last year, Lynnfield skipped an upgrade in 2010 and instead we saw Nehalem's replacement (Westmere, in the new Mac Pro) and new dual-core offerings (in the new MacBook/MacBook Pro). When Sandy Bridge arrives in early 2011, it won't replace any 6-core offerings in the product stack. You'll see some very competitive quad-core CPUs, but if you need more threads you'll have to wait.

How long? Probably until Q4 2011 at the absolute earliest for 8-core Sandy Bridge based parts. Apple could update the entry level quad-core Mac Pro to Sandy Bridge before the middle of next year however.

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  • jasperjones - Thursday, October 7, 2010 - link

    OS X hasn't supported NUMA for the longest time. imo it's of some importance on a dual-socket system with 8 or 12 cores. So, question: has Apple finally got around to make it work with the Mac Pro '10? If not, I assume that similarly-configured Dell and HP systems which run Linux or Windows will perform better in some scenarios.
  • metaungulate - Thursday, October 7, 2010 - link

    The KVR1333D3K3/3GR is Unbuffered. This won't work.
  • Ben90 - Thursday, October 7, 2010 - link

    Xeons support ECC not require it.
  • Stuka87 - Thursday, October 7, 2010 - link

    Buffered and ECC are different, and should not be confused with each other. Older Xeon's did use FBDIMM's, but current Xeons use standard DDR in either Non-ECC, ECC, or Buffered ECC unless the chipset used specifically calls for one or the other.
  • metaungulate - Thursday, October 7, 2010 - link

    Thank you for the clarification. However, these are the current prices on newegg.com:

    Intel Xeon E5620 Westmere 2.4GHz 12MB L3 Cache LGA 1366 80W Quad-Core Server Processor BX80614E5620: $384.99 x 2
    Kingston ValueRAM 3GB (3 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Triple Channel Kit Desktop Memory Model KVR1333D3K3/3GR: $60.99 x 2
    SAPPHIRE 100283-3L Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card: $139.99
    Western Digital Caviar Black WD1001FALS 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive: $79.99
    LG Black 24X DVD+R 8X DVD+RW 16X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM SATA DVD Burner - Bulk LightScribe Support - OEM: $20.99
    Corsair Obsidian Series 700D CC700D Black Aluminum / Steel ATX Full Tower Computer Case: $249.99
    Antec TruePower New TP-750 750W Continuous Power ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS BRONZE Certified Active PFC: $109.99
    ASUS Z8NA-D6C Dual LGA 1366 Intel 5500 ATX Dual Intel Xeon 5500 and 5600 Series Server/Workstation Motherboard: $259.99

    On what planet is this: $1612.91?

    The actual cost is: $1,752.90.
  • Anand Lal Shimpi - Thursday, October 7, 2010 - link

    That's the issue with non-realtime pricing, it changes. I've updated to the latest numbers :)
  • kevin2i - Sunday, October 31, 2010 - link

    The article is still wrong -- pricing does not include an OS.

    1752 Parts
    199 Windows 7 Professional

    Didn't see wifi/bluetooth, firewire, mouse, keyboard either.
    iLife suite? - The user may or may not find it useful. Although I have Final Cut, I typically use iMovie for simple tasks.
    Home box: No real warranty, no resale value -

    The apple tax is looking more like a refund compared to a home built system.
  • zorxd - Thursday, October 7, 2010 - link

    The Apple tax is clearly there. Only, there is also a Dell tax this time.
    Also, the Apple tax would look even worse if you compared the single socket system, since you could get a Core i7 (or maybe even i5) instead of the Xeon for the same (or better) performance with a much cheaper motherboard and CPU.
  • metaungulate - Thursday, October 7, 2010 - link

    Yeah, don't get me wrong, I still think that the build is the way to go at $1752.90. Just pointing out that if Anandtech wants to be such a trusted technical resource it would help if the writers knew how to use a calculator. :)
  • Nadav2010MP - Friday, October 8, 2010 - link

    But, for those like me who have a 2009 mac pro, all I had to do was spend 300 dollars for the two main parts to make my 09 a 2010.. The backplane board 661-5706 was only 250.00 from an on-line site.. and the processor board only cost me 46.00 - so, for 300.00, using the w3580, my 8GB 1066 mhz memory and 5770 - I was able to remove the original 09 parts and replace them with 2010 parts.. The heatsink from the 09 is the EXACTLY same as the 2010... rather the other way.. the 2010 uses the same 09 parts, some are marked with different part numbers to distinguish them, but for the most part.. all fans, case components work on the 2010 backplane board, as this board is the same exact board as in the 09 except Apple flashed it with the firmware to support westmere and 1333 mhz memory.

    Dual is a totally different story... it wouldn't be cost effective to move from a single to a dual because you lack the heatsinks(those two alone would be near 400 dollars), while the dual processor board would only be 76 dollars(macpartsonline.com), you still need the dual processors and THOSE ALONE would cost more than the machine or come close to the cost of a new 2010 already.

    The upgrade from 09 single to 2010 single can be done for 300.00 and thats it.. you are done. But the dual would cost far more.

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