Apple Mac Pro (2019)



Yes. 12 slots, up to 384 GB seen working.
It takes DDR4-2933 full-size sticks (DIMM). Most machines in the reports run ECC sticks.
- Slots
- 12 DIMM slots
- Type
- DDR4-2933 288-pin DIMM
- Most seen working
- 384 GB; one machine runs 384 GB
- Firmware says
- 4608 GB maximum
- How sure
- 3 of 3 reports show this layout
Worked out from 3 hardware reports of this desktop, with Apple's memory specifications for which Macs have sockets. Sources and method. Updated 10 Nov 2026.

It takes processors for the LGA2011-3 socket.
Processors in the reports: Xeon W-3245 (2), Xeon W-3275M (1). Prebuilt desktops often only take processors from the generation they shipped with, so stay with the ones listed.
- Socket
- LGA2011-3
- Seen working
- Xeon W-3245, Xeon W-3275M
- How sure
- From 3 reports
From the processor records in 3 hardware reports. Sources and method. Updated 10 Nov 2026.
Illustration It has at least 8 full-length (x16) slots for a graphics card.
Cards in the reports: Radeon Pro Vega II/Radeon Pro Vega II Duo (4), Radeon Pro W6800X/Radeon Pro W6800X Duo (4), Radeon RX 470/480/570/570X/580/580X/590 (2), Radeon RX 6800/6800 XT / 6900 XT (1), Radeon RX 5600 OEM/5600 XT / 5700/5700 XT (1), Radeon Pro W5700X (1).
- x16 slots
- At least 8, listed by the firmware
- Seen working
- Radeon Pro Vega II/Radeon Pro Vega II Duo, Radeon Pro W6800X/Radeon Pro W6800X Duo, Radeon RX 470/480/570/570X/580/580X/590
From 7 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 (2019)?
Yes. 12 slots, up to 384 GB seen working. It takes DDR4-2933 full-size sticks (DIMM). Most machines in the reports run ECC sticks.
What type of RAM does the Apple Mac Pro (2019) use?
DDR4-2933 full-size sticks (DIMM, 288-pin).
What processor can I put in the Apple Mac Pro (2019)?
It takes processors for the LGA2011-3 socket. Processors in the reports: Xeon W-3245 (2), Xeon W-3275M (1). 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 (2019)?
It has at least 8 full-length (x16) slots for a graphics card. Cards in the reports: Radeon Pro Vega II/Radeon Pro Vega II Duo (4), Radeon Pro W6800X/Radeon Pro W6800X Duo (4), Radeon RX 470/480/570/570X/580/580X/590 (2), Radeon RX 6800/6800 XT / 6900 XT (1), Radeon RX 5600 OEM/5600 XT / 5700/5700 XT (1), Radeon Pro W5700X (1).
Is this my desktop?
On the Mac, choose Apple menu > About This Mac > System Report. The Model Identifier should read MacPro7,1.