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Apple Mac Pro "Twelve Core" 2.66 (2012/Westmere) Specs

Identifiers: Mid-2012 - BTO/CTO - MacPro5,1 - A1289 - 2629

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Apple Mac ProThe Mac Pro "Twelve Core" 2.66 (Mid-2012/Westmere) is powered by dual 2.66 GHz Six Core 32-nm Xeon X5650 (Westmere) processors with a dedicated 256k of level 2 cache for each core and 12 MB of "fully shared" level 3 cache per processor. It also can be equipped with other dual Six Core processors, but these are documented as their own models for convenience.

By default, this model is configured with 12 GB of 1333 MHz DDR3 ECC SDRAM, a 1 TB (7200 RPM, 32 MB cache) 3Gb/s Serial ATA hard drive, an 18X dual-layer "SuperDrive" and an ATI Radeon HD 5770 graphics card with 1 GB of GDDR5 memory.

Expansion includes two external 5.25" "optical" bays (one free by default), four internal 3.5" "cable-free, direct attach" hard drive bays (three free by default), and four PCIe 2.0 slots (one free PCIe 2.0 x16 slot and two free PCIe 2.0 x4 slots with the default single graphics card installed).

Ports include five USB 2.0 ports, four Firewire "800" ports, dual Gigabit Ethernet, two Mini DisplayPorts and a dual-link DVI port, among others. AirPort Extreme (802.11a/b/g/n) and Bluetooth 2.1+EDR is standard.

Please note that the "Mid-2012" Mac Pro models practically are identical to the "Mid-2010" models before them, but there are some differences in terms of specs and identifiers and EveryMac.com has documented them as their own models, accordingly.

Also see:

  • What are the differences between the standard "Mid-2012" Mac Pro models? What are the differences between the standard and custom configurations of the "Mid-2012" Mac Pro line?
  • What are the differences between the "Mid-2012" Mac Pro models and the "Mid-2010" Mac Pro models that they replaced? Are there any differences? How can these lines be differentiated from one another?

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  • Tech Specs
  • Ports
  • Global Original Prices
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Click on a category for related details. The most commonly needed info is "open" by default, but all info is important. Asterisks (*) reference data in details fields.


June 11, 2012 October 22, 2013*
Details: The "Introduction Date" typically refers to the date a model was introduced via press release, although no press release was issued for this model. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

*This model was discontinued in the US on October 22, 2013. However, Apple stopped online orders in the EU on February 18, 2013, and discontinued it altogether in the EU on March 1, 2013.

Also see: All Macs introduced in 2012.
2 (12 Cores) 64-Bit
Details: Also see: All models with a 64-Bit processor courtesy of EveryMac.com's Ultimate Mac Sort.
20294 22605
Details: Geekbench 2 benchmarks are in 32-bit and 64-bit modes, respectively. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit and 64-bit Geekbench 2 user submissions for Macs with the MacPro5,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 2 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
2123 22383
Details: These Geekbench 3 benchmarks are in 32-bit mode and are for a single processor core and all processor cores, respectively. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit single core and multicore Geekbench 3 user submissions for Macs with the MacPro5,1 Model Identifier, which may include multiple models.

To dynamically compare 32-bit Geekbench 3 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
2326 25131
Details: These Geekbench 3 benchmarks are in 64-bit mode and are for a single processor core and all processor cores, respectively. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 64-bit single core and multicore Geekbench 3 user submissions for Macs with the MacPro5,1 Model Identifier, which may include multiple models.

To dynamically compare 64-bit Geekbench 3 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
2437 18548
Details: These Geekbench 4 benchmarks are are for a single processor core and all processor cores, respectively. All Geekbench 4 benchmarks are 64-bit. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all single core and multicore Geekbench 4 user submissions for Macs with the MacPro5,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 4 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
548 5198
Details: These Geekbench 5 benchmarks are are for a single processor core and all processor cores, respectively. All Geekbench 5 benchmarks for the Mac are 64-bit. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all single core and multicore Geekbench 5 user submissions for Macs with the MacPro5,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 5 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
2.66 GHz 6 Core Xeon X5650 x2
Details: The 64-bit 32-nm Xeon X5650 (Westmere) processor has six independent processor "cores" each with a dedicated 256k level 2 cache, 12 MB of "fully shared" level 3 cache, an integrated memory controller, and "a 128-bit SSE4 SIMD engine". It also supports "Hyper-Threading" -- which "allows two threads to run simultaneously on each core" (so Mac OS X recognizes twenty four total cores on this model, twelve real and twelve virtual) -- and "Turbo Boost" -- which "automatically boosts the processor speed based on workload" (so if an application is only using one of the four cores it will automatically increase the speed of the core in use and turn off the unused cores), in this case up to 3.06 GHz.

Also see: How fast are the "Mid-2012" Mac Pro models compared to one another? How fast are the "Mid-2012" Mac Pro models compared to the "Mid-2010" models replaced? Are they actually faster?
3.06 GHz N/A
Details: N/A
LGA 1366 Sockets Integrated
Details: *Details regarding the processor mounting can be added when they become available. By default, this type of processor uses a Socket P (LGA 3647).
6.4 GT/s* 2.66 GHz (Built-in)
Details: *This model has a "QuickPath Interconnect" (QPI) system described as a "bidirectional, point-to-point connection" that provides "quick access to the disk, I/O, and other Mac Pro subsystems" in lieu of a "traditional" system bus. Intel reports that it runs at 6.4 GT/s.
EFI 64-Bit
Details: N/A
32k/32k x12 256k (x12), 12 MB (x2)*
Details: *Each core has its own dedicated 256k level 2 cache and the system has 12 MB of "fully shared" level 3 cache as well per processor (24 MB total).
PC3-10600 DDR3 ECC 1333 MHz
Details: Uses "1333 MHz DDR3 ECC SDRAM" (PC3-10600) modules.

Also see: How do you upgrade the RAM in the "Mid-2012" Mac Pro models? How much RAM do they actually support?
12 GB 128 GB*
Details: 12 GB of RAM is installed as six 2 GB modules. Two slots are free.

*Apple officially supports a maximum of 64 GB of RAM in this model. However, as first noted by site sponsor OWC, this model actually can support 96 GB running Mac OS X 10.6 or 10.7, and yet again to 128 GB. When running OS X 10.9 "Mavericks" or later, this model is capable of using 128 GB of RAM, but this is limited to 96 GB of usable RAM when running earlier versions of the operating system.

In the US (and many other countries), site sponsor Other World Computing sells memory -- as well as other upgrades -- for this Mac Pro.

In the UK, site sponsor Flexx sells memory and other upgrades for this Mac Pro.

In Germany, site sponsor CompuRAM sells memory and other upgrades for this Mac Pro.

In Australia, site sponsor Upgradeable sells memory and other upgrades for this Mac Pro.

Also see: Actual Max RAM of All G3 & Later Macs.
None 8*
Details: *Eight memory slots -- four per processor -- are provided on "slide out" processor trays. Note that this model supports triple channel memory addressing and performance is improved by installing memory in groups of three.
Radeon HD 5770 GDDR5 SDRAM
Details: By default, an ATI Radeon HD 5770 with 1 GB of GDDR5 memory is installed in a double-wide, 16-lane PCI Express 2.0 graphics slot. The card has two Mini DisplayPorts and one dual-link DVI port. By custom configuration it also can be equipped with an ATI Radeon HD 5870 which also has 1 GB of GDDR5 memory for an additional US$200 or two ATI Radeon HD 5770 video cards for an additional US$250.

Also see: What are the default graphics cards provided with each Mac Pro? What Mac Pro compatible video cards are available for purchase later? Which video cards have which ports?

In Spain, site sponsor iRepairs provides affordable repair and data recovery services. In-person and by mail repair services include the graphics card, power supply, and more for this Mac Pro.
1 GB 1 GB
Details: Other graphics cards can be pre-installed at the time of purchase or can be installed later.
Up to 6 Displays* 2560x1600*
Details: *Apple advertises that this system is capable of supporting up to six displays but notes that "connecting more than three displays requires installation of two ATI Radeon HD 5770 video cards". Apple also notes that there is "a maximum of two DVI-based displays per graphics card." By default, one ATI Radeon HD 5770 video card is installed and this default video card is capable of supporting three displays -- digital resolutions up to 2560x1600 and analog resolutions up to 2048x1536.
Dual/Mirroring 2560x1600
Details: The ATI Radeon HD 5770 is capable of supporting three 30-inch displays with a resolution of 2560x1600 in either dual display or mirrored mode.

Also see: Apple Cinema Displays.
1 TB HDD 7200 RPM
Details: By default, this system shipped with a single 1 TB (7200 RPM, 32 MB cache) Serial ATA 3Gb/s hard drive. Via custom configuration, Apple offered to swap the 1 TB drive with a 2 TB drive for an extra US$150 or with a 512 GB SSD for an extra US$1250.

Also see: How do you upgrade the hard drives in the Mac Pro models? How many drives of what type are supported?

In the US (and many other countries), site sponsor Other World Computing sells storage upgrades for this Mac Pro.

In the UK, site sponsor Flexx sells storage upgrades for this Mac Pro.

In Australia, site sponsor Upgradeable sells storage upgrades for this Mac Pro.

Also see: SSD Compatibility Guide for All G3 & Later Macs.
3.5" (25.4 mm) Serial ATA (3 Gb/s)
Details: Apple formally supports up to 8 TB of storage with four 3.5" 2 TB hard drives (one in each internal bay).

Also see: How do you upgrade the hard drives in the Mac Pro to SSDs? What SSD options are available? Which SSD configuration provides the fastest performance?
18X DL "SuperDrive" None
Details: Apple reports that this SATA "18X" double layer DVD±R DL/DVD±RW/CD-RW SuperDrive "writes DVD+R and DVD-R discs at up to 18x speed, DVD+R DL and DVD-R DL discs at up to 8x speed, DVD+RW discs at up to 8x speed, DVD-RW discs at up to 6x speed, reads DVDs at up to 18x speed writes CD-R and CD-RW discs at up to 32x speed, [and] reads CDs at up to 32x speed."

Also see: What options are available for the second "optical drive bay" on the Mac Pro? How do you install a second optical drive or replace the primary one?
None Gigabit (x2)
Details: The system has "two independent 10/100/1000BASE-T [Gigabit] Ethernet (RJ-45) interfaces with support for jumbo frames."
802.11a/b/g/n 2.1+EDR
Details: AirPort Extreme (802.11a/b/g/n) and Bluetooth 2.1+EDR is standard.
5 (2.0) 4 (800)
Details: This Mac Pro model has five USB 2.0 ports on the system (two on the front panel and three on the back) and four Firewire "800" ports (two on the front and two on the back). Apple also advertises that there are "two USB 2.0 ports on [the] included keyboard".
4 PCIe 2.0* 4 3.5", 2 5.25"
Details: *This model has four full-length PCI Express (PCIe) 2.0 expansion slots, two x16 slots and two x4 slots. In the default configuration, one PCIe 2.0 x16 slot is occupied by the graphics card. Apple also reports that "all slots provide mechanical support for 16-lane cards" and there is a "300W combined maximum for all PCI Express slots."

In the default configuration, one internal 3.5" bay is occupied by a hard drive and three are free, and one external 5.25" bay is occupied by a "SuperDrive" and the other is free.

Also see: How many PCI slots of what type are provided by each Mac Pro model? How do you install a PCIe card in the Mac Pro?

In the US (and many other countries), site sponsor Other World Computing sells a wide variety of internal and external expansion options and hand-picked accessories ranging from internal PCIe cards to external storage, stands, keyboards, cables, adapters, and more for this Mac Pro.
Apple Aluminum KB Magic Mouse
Details: Ships with an "ultra-thin aluminum" Apple Keyboard with an embedded numeric keypad (0.33 inches at the front edge) and the Apple wireless "Magic Mouse", where the "entire top is a seamless multi-touch surface" that allows one to "navigate using intuitive finger gestures". As an optional US$69 upgrade, this model also can be configured with a "Magic Trackpad" that provides multi-touch input like on a recent Apple notebook.
Tower Mac Pro
Details:
BTO/CTO Mid-2012
Details: As this model technically is a custom configuration of the Mac Pro "Twelve Core" 2.4 (2012/Nehalem), it does not have its own order number.
A1289 (EMC 2629) MacPro5,1
Details: Please note that these identifiers refer to more than one model.

Also see: All Macs with the A1289 Model Number, the 2629 EMC Number, and the MacPro5,1 Model Identifier.

For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section.
N/A N/A
Details: N/A
X 10.7.4* (11E53) X 10.14.x**
Details: *Although OS X 10.7.4 initially was pre-installed, this model also is capable of booting Mac OS X 10.6 "Snow Leopard."

**This system fully supports the last version of OS X 10.8 "Mountain Lion" and OS X 10.9 "Mavericks" with the exception of the "AirPlay Mirroring" and "Power Nap" features. It also supports the last version of OS X 10.10 "Yosemite" and OS X 10.11 "El Capitan" and is compatible with Mac-to-Mac AirDrop, but other advanced features are not supported. It is capable of running macOS Sierra (10.12) as well, although the Universal Clipboard, Auto Unlock, and Apple Pay features are not supported. This model is capable of running macOS High Sierra (10.13), and it supports HEVC (High-Efficiency Video Coding), but it does not support hardware accelerated HEVC.

Finally, this model is compatible with the last version of macOS Mojave (10.14) when equipped with a "recommended Metal-capable GPU." It does not support macOS Catalina (10.15) or subsequent versions of the macOS.

Additionally, please note that OS X "Lion" 10.7 and subsequent versions of OS X are not capable of running Mac OS X apps originally written for the PowerPC processor as these operating systems do not support the "Rosetta" environment. To run PowerPC applications on this Mac, it will be necessary to use Mac OS X 10.6 "Snow Leopard".

Also see: Which Macs are compatible with macOS Mojave (10.14)? What are the system requirements? Are 32-bit apps compatible?
XP SP2 (32-Bit)* 8.1 (64-Bit)*
Details: *Apple's Boot Camp 4 supports the 32-bit version of Windows XP SP2, Windows Vista, and Windows 7, as well as the 64-bit version of Windows Vista on this model. Apple's Boot Camp 5 supports the 64-bit versions of Windows 7 and Windows 8.

Although Apple does not support Windows 10 via Boot Camp 5 (officially or otherwise), this system meets Microsoft's hardware requirements and it very well may be possible to boot Windows 10 on this Mac. If you have installed Windows 10 on this system (successfully or unsuccessfully), please share the results of your experiment. Thank you.
None Boot/Virtualization
Details: Also see: Are there any third-party programs to run Mac OS 9/Classic applications on Intel Macs?

For more on running Windows on Intel Macs, please refer to the exhaustive Windows on Mac Q&A.
20.1 x 8.1 x 18.7 39.9 lbs. (18.1 kg)
Details: In inches - height by width by depth, (51.1 cm, 20.6 cm, 47.5 cm).
US$4999 US$650-US$900
Details: Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple Computer.


Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.


3 None
Details: Two Mini DisplayPorts and one dual-link DVI port provided by the default ATI Radeon HD 5770 graphics card. Supports dual display and mirroring modes. This default card is capable of supporting as many as three displays and the Mini DisplayPorts are capable of multichannel audio.

Also see: What graphics cards are available for the Mac Pro? Which models have which ports?
None None*
Details: *Supports internal Serial Attached SCSI, external SCSI support can be added with an aftermarket PCIe card.
None None
Details: N/A
5 (2.0) 4 (800)
Details: This Mac Pro model has five USB 2.0 ports on the system (two on the front panel and three on the back) and four Firewire "800" ports (two on the front and two on the back). Apple also advertises that there are "two USB 2.0 ports on [the] included keyboard".
None 2 (RJ-45)
Details: No internal modem. Gigabit Ethernet, AirPort Extreme (802.11a/b/g/n) and Bluetooth 2.1+EDR are standard.
None None
Details: N/A
None 2
Details: Includes a rear mounted "optical digital audio input Toslink port" and an "analog stereo line-level input" minijack.
2 1
Details: Includes a rear mounted "optical digital audio output Toslink port" and an "analog stereo line-level output" minijack. Also has a front-mounted headphone jack.
N/A None
Details: N/A
1 N/A
Details: Apple reports that the line voltage is "100-120V AC or 200-240V AC (wide-range power supply input voltage)" and the maximum current is "12A (low-voltage range) or 6A (high-voltage range)".

Global original prices for the Mac Pro "Twelve Core" 2.66 (2012/Westmere) in 34 different countries and territories follow; organized alphabetically by region.

For global original prices for Intel Macs in one particular country on a single page, please refer to EveryMac.com's Global Original Prices section.

Original Prices - North & South America

C$5049 R$19.199
MXN $85,199 US$4999

Original Prices - Europe

€4899 N/A
N/A N/A
N/A €4899
€4949 N/A
N/A €4899
N/A N/A
N/A N/A
CHF 4'999 N/A

Original Prices - Asia

RMB 38,008 HK$38,848
N/A N/A
¥434,400 KRW 6,605,200
RM 16,079 PHP 246,990
S$6,968 NT$162,020
THB 168,260 N/A

Original Prices - Australia & New Zealand

A$6039 NZ$8019

If you have additional original prices for this model, please get in touch. Thank you.


Ten of the most popular Q&As about the Mac Pro models follow.



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