Apple MacBook Pro MD831LL/A “Core i7″ 2.7 15” Retina 2012 Specs

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MacBook Pro Retina Mid-2012 – MD831LL/A – MacBookPro10,1 – A1398 – 2512

About this MacBook Pro

The introduction of the MacBook Pro Retina Display with a Core i7 processor, 8 GB of onboard 1600 MHz DDR3L SDRAM, and 512 GB of flash storage was the result of Apple’s continued production of the MacBook Pro series in mid-2012. This unit is known for its pixel-dense screen that came on a thinner body. It is a combination of a beautiful high-resolution LED-backlit 15.4” widescreen 2880×1800 (220 PPI) “retina” display with a thin, sleek case design. More device specifications and capabilities of this MacBook Pro can be found below.

2.7 GHz Core i7

8 GB

512 GB SSD

7 Hours

Storage

The MacBook Pro a1398 has a 512 GB SSD of 6 Gb/s storage. The model is comparatively thinner because the RAM is attached to a logic board. Which represents a major improvement from the hard drives used in the previous generations. Since flash storage is significantly faster, it is still used in the latest models today.

Screen Size and Resolution

This MacBook Pro has a 15.4″ color widescreen LED-backlit display with IPS technology with a 2880×1800 native resolution at 220 ppi (178-degree viewing angle).

What makes this model special is its IPS panel powered by LED backlighting. This translates to a broader viewing angle. Seeing graphics and texts without odd colors or even other glitches. The monitor accuracy of this model is perfect for film viewing.

Processor& Graphics Processing Unit (GPU)

This MacBook Pro has a pre-installed MacOS X 10.7.4 (11E2068), 2.7 GHz Intel Core i7 3820QM (Ivy Bridge) processor and dual graphics processors –NVIDIA GeForce GT 650M with 1 GB of dedicated GDDR5 memory, and an “integrated” Intel HD Graphics 4000 graphics processor that shares the system memory.

The dual graphics processors of this model automatically switch from one system to another depending on the activity or application used. This elevates the performance of the laptop, graphically. It is ideal for gamers with its 3G image capability.

Memory & Architecture

Any application installed on the MacBook Pro is guaranteed to run faster with its 256k level 2 cache and a 8 MB Level 3 cache plus 8 GB of onboard 1600 MHz DDR3L SDRAM. It comes with a 64-Bit architecture.

MacBook Pro Core i7 has an “Ivy Bridge” system that allows four independent processor core functioning. It also speeds up the active cores for better performance with its Turbo Boost feature. As an Ultrabook, this delivers best in multimedia and graphics for top-notch gameplay and HD video transcoding. It is also 20% better than its previous generation.

Battery Life

This MacBook Pro has a 95-watt-hour lithium-polymer battery that provides 7 hours of wireless web use.

Upgradability

This MacBook Pro comes with a standard 8 GB RAM. However, this can be upgraded up to 16 GB, but users have to decide right away at the time of purchase. Its flash storage cannot be altered. The operating system of the MacBook Pro can be upgraded from its default MacOS X 10.7.4 (11E2068) to the current MacOS X. It can also host Windows OS 7 (32-Bit) and updated to operating systems as high as Windows 8.1 (64-Bit). This MacBook Pro comes with dimensions of 0.71 x 14.13 x 9.73 and a weight of 4.46 lbs (2.02 kg).

The only flaw with the MacBook Pro’s design is that the decision to upgrade it must be done in the middle of buying it.

Inclusive Features

The MacBook Pro includes the following features and ports:

8X DL “SuperDrive”
Bluetooth 4.0 allowing for quick PAN (Personal Area Network) connections and transfers
Two USB 3.0 Ports are supplied for the connection of external keyboards, printers, external hard disks etc.
Optical digital audio in/out for connecting some external audio equipment like headphones and microphones
SDXC Card Slot
No button glass multi-touch trackpad with support for new “four finger” gestures and programmable zones
FaceTime HD webcam

Introduced: June 11, 2012		Discontinued: February 13, 2013
Screen Size and Resolution		Memory
Screen Size	15.4″ Widescreen	Level 1 Cache	32k/32k x 4
Resolution	2880×1800	Level 2/Level 3 Cache	256k x 4, 8 MB
Processor		RAM Type	DDR3L SDRAM
Processors	1 (4 Cores)	Min. RAM Speed	1600 MHz
Architecture	64-Bit	Standard RAM	8 GB
Speed	2.7 GHz	Maximum RAM	16 GB
Type	Core i7 (I7-3820QM)	RAM Slots	None
Processor Upgrade	Soldered	Motherboard RAM	8 GB
FPU	Integrated	Graphics
System Bus Speed	5 GT/s	Video Card	GeForce GT 650M
Cache Bus Speed	2.7 GHz (Built-in)	VRAM Type	GDDR5
ROM/Firmware	EFI	Standard VRAM	1 GB
EFI Architecture	64-Bit	Maximum VRAM	1 GB
Storage		Inclusive Features and Ports
Standard Storage	512 GB SSD	Standard Optical Drive	None
Storage Speed	390/440 MB/s	Standard Ethernet	None
Storage Dimensions	Proprietary	Standard Modem	None
Storage Interface	Proprietary(6 Gb/s)	Standard AirPort	802.11a/b/g/n (3-Stream)
Battery		Standard Bluetooth	4.0
Type	95 W h Li-Poly	USB Ports	2 (3.0)
Battery Life	7 hours	Firewire Ports	None
Description		Keyboard	Full-size
Case Type	Notebook	Inclusive Input	Trackpad (Inertial)
Form Factor	MacBook Pro (Retina)	SDXC Card Slot	One
Apple Order No	MD831LL/A	Microphone	1
Apple Subfamily	Retina Mid-2012	Headphone	1
Apple Model Number	A1398 (EMC 2512)	Sound Out	1
Model ID	MacBookPro 10,1	Power Adapter	1

Identifier reference: MD831LL/A, A1398, EMC 2512, MacBookPro 10,1. Use these together because one Apple identifier can sometimes cover multiple configurations.

Last reviewed by Techable: August 20, 2025Identifiers checked: order number, A-number, EMC, and model identifier when available.

Model summary

This MacBook Pro at a glance

Family: MacBook Pro
Order Number: MD831LL/A
Model Number: A1398
EMC: 2512
Model ID: MacBookPro 10,1
Year: 2018

Use the order number, A-number, EMC, and model identifier together when comparing, buying, or selling this device.

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Next steps

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Common questions

Is MD831LL/A the same as A1398?

Not exactly. MD831LL/A usually points to a specific retail configuration, while A1398 identifies the broader Apple hardware family. Always check the EMC and model identifier too.

What MacBook Pro is model A1398?

A1398 is the Apple A-number shown for this MacBook Pro family. Use the order number, EMC, and model identifier on this page to narrow the exact configuration.

What does EMC 2512 mean?

The EMC number is another Apple hardware identifier. It helps separate closely related models that may share a similar name, year, or A-number.

Can the RAM or SSD be upgraded?

Check the spec table for the exact configuration. Many newer Apple Silicon Macs have memory and storage integrated into the board, so RAM and SSD upgrades are often not practical after purchase.

What macOS versions work with this model?

Use the model identifier, release year, and processor family from the spec table when checking macOS compatibility. Compatibility can change as Apple releases new macOS versions.

Is this MacBook Pro still worth buying used?

It can be, depending on price, battery health, memory, storage, and condition. Compare this exact order number and model identifier against similar Techable listings before buying.

How much is this MacBook Pro worth?

Value depends on RAM, storage, battery health, cosmetic condition, accessories, and market demand. Use the SellMac path on this page for a quote or use the identifiers here when comparing resale prices.

What should I search if this page is not the exact configuration?

Search the order number first when available, then compare the A-number, EMC, model identifier, year, chip, RAM, and storage. The same A-number can cover more than one configuration.

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