Ddr3 For Mac Pro


Mac Pro has a 6-channel memory controller that supports 12 memory slots you can use to install up to 1.5TB of memory using 2933MHz DDR4 ECC compliant memory DIMMs. To ensure compatibility, Apple recommends that you use Apple-approved memory. You can purchase Apple-approved memory online from the Apple Store or by visiting an Apple Retail Store or Apple Authorized Reseller.

DDR3 = 1.5 Volts. DDR3L = 1.35 Volts. 2008 Macbook Uni and Macbook Pro = 8GB DDR3 1066MHz RAM is the Max. 2011 Macbook Pro = 16GB DDR3 1333MHz RAM is the Max - you can also use DDR3L (but not recommended). Mac Specs By Capability Actual Maximum RAM MacBook Pro Models. The actual maximum RAM of each MacBook Pro is listed below along with its compatible RAM type, default amount of RAM pre-installed, common identifiers suitable to identify a MacBook Pro in order to determine its RAM capacity, and more. If you are not sure which MacBook Pro you have, and the Model Identifier and EMC Number. 3.5GHz 8‑core Intel Xeon W processor, Turbo Boost up to 4.0GHz. 3.3GHz 12‑core Intel. Easily upgrade your 2008-2010 MacBook Pro RAM to up to 8GB, and save money by trading in your old memory chips! Includes a lifetime OWC warranty.

Last year I upgraded my macbook ram from 8gb to 16gb. (It's a Macbook Pro 13' mid 2012 - model A1278) It originally came with 2x4gb DDR3, and I replaced with 2x8gb DDR3L, as advised by a friend and after checking several online foruns. About 6 months later the macbook died and I.

Memory requirements

Ddr3 ram for mac pro

When you upgrade the memory in your Mac Pro, it must meet these requirements:

  • 2933MHz DDR4 full-length DIMM. Mixing memory speeds is not recommended.
  • Error-correcting code (ECC)
  • 8GB, 16GB, 32GB, 64GB, or 128GB DIMMs
  • Registered (R-DIMM) or Load-Reduced DIMM (LR-DIMM). Do not mix R-DIMMs and LR-DIMMs.
  • 288-pin
  • Use the same size memory modules across all slots to maximize performance.
  • DIMMs with heatsinks are not supported and may damage the DIMM mechanism.

The Mac Pro supports both R-DIMMs and LR-DIMMs, but you can't mix these two memory types. Mixing R-DIMMs and LR-DIMMs will result in a memory error flash of the status indicator light when you turn on your computer.

Model specifications

Mac Pro modelMax RAMSpeedType
8-core768GB2666MHz DDR4 ECCLR-DIMM or R-DIMM
12-core768GB2933MHz DDR4 ECCLR-DIMM or R-DIMM
16-core768GB2933MHz DDR4 ECCLR-DIMM or R-DIMM
24-core1.5TB2933MHz DDR4 ECCLR-DIMM or R-DIMM
28-core1.5TB2933MHz DDR4 ECCLR-DIMM or R-DIMM

Configured from Apple, Mac Pro models include the following DIMM types:

  • R-DIMMs for configurations up to 192GB (6x32GB).
  • LR-DIMMs for configurations of 384GB (6x64GB) or more.

All memory included with your Mac Pro is 2933MHz. Mac Pro models with 8 core processors operate memory at 2666MHz.

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Ddr3 mac pro


Mac Pro Late 2013
4 slots

The latest model of the Mac Pro takes DDR3-1866Mhz RAM. The machine has four slots that can take up to 32GB* per slot for a maximum upgrade of 128GB of RAM.

The DDR3-1866 DIMMs for the Mac Pro require a Thermal Sensor for full performance and compatibility. Many 3rd party Mac Pro DIMMs do not include this sensor. Ramjet memory always conforms 100% to the Apple spec, and these DIMMs include the Apple thermal sensor.

Tri-channel memory configuration gives a slight performance advantage. The DDR3-1866 DIMMs for the Mac Pro will run 1-3% faster if they are installed in matched sets of three (tri-channel). You may add DIMMs in any combination, but performance will suffer slightly if the DIMMs are not matched 3x at a time.

Non-Mixable 16GB and 32GB DIMMs: 16GB and 32GB DIMMs can ONLY be used with identical 16GB or 32GB DIMMs from the same batch (i.e. ordered at the same time.) 16GB and 32GB DIMMs can NOT be mixed with each other.

*32GB DIMMs: Due to configuration of the 2013 Mac Pro processor, 32GB modules will register at a bus speed of 1066Mhz. All other size modules register at a bus speed of 1866Mhz.

Matched Modules: The Ramjet kits for the Mac Pro DDR3-1866 contain a matched set of DIMMs. The kit will consist of identical brand/model/spec IC's. They will be from a single batch, and will have matching series numbers. This ensures maximum performance, and perfect compatibility.

This is a sale item. No additional promotions or discounts apply.


Installation Guide for 2013 Mac Pro RAM Upgrade

The following installation video covers the Mac Pro DDR3-1866Mhz.

Click here to find Apple's installation guide for the 2013 Mac Pro.


Domestic Shipping OptionsDelivery Estimate
US Postal Service 1st Class*FREE3-10 business days
US Postal Service Priority Mail$6.992-4 business days
UPS Ground$9.993-5 business days
UPS 2-Day$12.99 and up2 business days
UPS Overnight$29.99 and up1 business day
International Shipping OptionsDelivery Estimate
UPS Worldwide ExpeditedPrice varies2-5 business days**
UPS Worldwide SaverPrice varies1-3 business days**

Ramjet offers same day shipping for UPS Overnight and UPS 2-day air orders for in-stock items that are received by 3pm Central time Monday through Friday (Holidays excluded.) UPS costs are calculated based on promixity and package weight.

* Shipping weights above .8 lbs (13 ounces) can not use US Postal Service 1st Class.

** International shipping charges include all brokerage fees, but do not include taxes or duties assessed by your local government. International delivery estimates do not include any customs inspection delays.

Upgrade SizeConfigurationPricePurchase
128GB 32GBx4 $699.99
96GB 32GBx3 $549.99
64GB 32GBx2 $379.99
Upgrade SizeConfigurationPricePurchase
64GB 16GBx4 $379.99
48GB 16GBx3 $299.99
Upgrade SizeConfigurationPricePurchase
32GB 8GBx4 $189.99
24GB 8GBx3 $144.99
16GB 8GBx2 $99.99
8GB 8GB $54.99
Upgrade SizeConfigurationPricePurchase
4GB 4GB $49.99

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