Apple Mac Pro (Late 2013)

Model identifier MacPro6,1 Desktop, from 2013 56 hardware reports
Memory
Up to 128 GB
4 full-size slots
Processor
Xeon E5-1650 v2
Most common processor
Graphics card
2 x16 slots
5 cards seen
Upgradable

Yes. 4 slots, up to 128 GB seen working.

It takes DDR3-1866 full-size sticks (DIMM). Most machines in the reports run ECC sticks.

Slots
4 DIMM slots
Type
DDR3-1866 240-pin DIMM
Most seen working
128 GB in two or more machines
Firmware says
192 GB maximum (often wrong, so we show what machines run)
SSD slots
At least 1 M.2 SSD slot listed by the firmware
How sure
30 of 30 reports show this layout
See 32 GB DDR3-1866 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 30 hardware reports of this desktop, with Apple's memory specifications for which Macs have sockets. Sources and method. Updated 10 Nov 2026.

4 full-size slots
Illustration
Processor

Processors seen in these desktops.

Processors in the reports: Xeon E5-1650 v2 (11), Xeon E5-2697 v2 (9), Xeon E5-1680 v2 (6), Xeon E5-1620 v2 (4). Prebuilt desktops often only take processors from the generation they shipped with, so stay with the ones listed.

Seen working
Xeon E5-1650 v2, Xeon E5-2697 v2, Xeon E5-1680 v2
How sure
From 30 reports

From the processor records in 30 hardware reports. Sources and method. Updated 10 Nov 2026.

Illustration
Graphics card

It has at least 2 full-length (x16) slots for a graphics card.

Cards in the reports: Radeon HD 7970/8970 OEM / R9 280X (41), Radeon HD 7870 XT (36), Radeon R7 370 / R9 270X/370X (34), FirePro W9000 (1), Radeon RX 470/480/570/570X/580/580X/590 (1).

x16 slots
At least 2, listed by the firmware
Seen working
Radeon HD 7970/8970 OEM / R9 280X, Radeon HD 7870 XT, Radeon R7 370 / R9 270X/370X
See graphics cards on AmazonCheck the card's length and power needs against your case.

From 56 PCI device reports and the firmware's slot table. Sources and method. Updated 10 Nov 2026.

Illustration

Questions

Can I upgrade the RAM in the Apple Mac Pro (Late 2013)?

Yes. 4 slots, up to 128 GB seen working. It takes DDR3-1866 full-size sticks (DIMM). Most machines in the reports run ECC sticks.

What type of RAM does the Apple Mac Pro (Late 2013) use?

DDR3-1866 full-size sticks (DIMM, 240-pin).

How much RAM can the Apple Mac Pro (Late 2013) take?

Machines in the reports run up to 128 GB. The firmware reports a maximum of 192 GB, a figure that is often wrong.

What processor can I put in the Apple Mac Pro (Late 2013)?

Processors seen in these desktops. Processors in the reports: Xeon E5-1650 v2 (11), Xeon E5-2697 v2 (9), Xeon E5-1680 v2 (6), Xeon E5-1620 v2 (4). Prebuilt desktops often only take processors from the generation they shipped with, so stay with the ones listed.

Can I add a graphics card to the Apple Mac Pro (Late 2013)?

It has at least 2 full-length (x16) slots for a graphics card. Cards in the reports: Radeon HD 7970/8970 OEM / R9 280X (41), Radeon HD 7870 XT (36), Radeon R7 370 / R9 270X/370X (34), FirePro W9000 (1), Radeon RX 470/480/570/570X/580/580X/590 (1).

Is this my desktop?

On the Mac, choose Apple menu > About This Mac > System Report. The Model Identifier should read MacPro6,1.

More in the Apple Mac Pro