When I compare renewed Mac Pro desktops, the main choice is not simply which model has the biggest processor count. These 2013-era workstations use older Intel hardware, FirePro graphics, and Thunderbolt 2, so I would match one to a specific legacy workflow rather than assume it suits every modern desktop need. My leading pick for memory-heavy work is the 64GB Late 2013 Mac Pro; the 12-core 2.7GHz model is the strongest choice here for parallel processor tasks; and the 16GB quad-core model offers a practical starting configuration with a 512GB SSD.
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The tradeoffs are unusually clear across this group: more CPU cores come with less included storage and memory, while the two quad-core systems differ sharply in RAM capacity. All three use dual FirePro D300 graphics and older connectivity, and their listed operating systems range from Yosemite to Sierra. I would choose only after checking compatibility with the software, peripherals, and macOS version I need, as well as confirming the renewed unit’s condition and warranty terms.
Complete the kit
Key Takeaways
- The Late 2013 model is the only option listed with 64GB RAM, making it my pick for memory-hungry legacy tasks, though it has limited internal expansion.
- The 12-core 2.7GHz model has the most CPU cores but only 32GB RAM and a 256GB SSD, so its advantage is parallel processing rather than out-of-box capacity.
- The 3.7GHz quad-core model pairs 16GB RAM with a 512GB PCIe SSD; it is the balanced-capacity choice, but memory may constrain demanding workloads.
- All three use dual AMD FirePro D300 graphics and Thunderbolt 2, so buyers should check app and accessory compatibility instead of expecting current-generation workstation features.
- The listed operating systems are older versions of OS X or macOS; confirm software support and the renewal warranty before choosing any of these computers.
| Apple Mac Pro (Late 2013), 3.7GHz Quad-Core Xeon, 64GB RAM, 512GB SSD (Renewed) |  | Best Overall for Memory-Heavy Work | Processor: 3.7GHz quad-core Intel Xeon E5-1620 v2 | Memory: 64GB 1866MHz DDR3 ECC SDRAM | Storage: 512GB SSD | VIEW ON AMAZON | See Our Full Breakdown |
| Apple Mac Pro Desktop, 12-Core 2.7 GHz Xeon E5, 32 GB RAM, 256 GB SSD (Renewed) |  | Best for Parallel CPU Workloads | Processor: 12-core Intel Xeon E5, 2.7GHz | Memory: 32GB 1866MHz DDR3 ECC | Storage: 256GB PCIe flash storage | VIEW ON AMAZON | See Our Full Breakdown |
| Apple Mac Pro Desktop Computer, 3.7 GHz Quad-Core Intel Xeon E5, 16 GB RAM, 512 GB SSD (Renewed) |  | Best for a Basic Legacy Workstation Setup | Processor: 3.7GHz quad-core Intel Xeon E5 | Memory: 16GB 1866MHz DDR3 ECC | Storage: 512GB PCIe flash storage | VIEW ON AMAZON | See Our Full Breakdown |
| renewed mac pro desktop | Processor | Memory | Storage | Graphics |
|---|---|---|---|---|
| Apple Mac Pro | 3.7GHz quad-core Intel Xeon E5-1620 v2 | 64GB 1866MHz DDR3 ECC SDRAM | 512GB SSD | Dual AMD FirePro D300, 2GB GDDR5 each |
| Apple Mac Pro Desktop | 12-core Intel Xeon E5, 2.7GHz | 32GB 1866MHz DDR3 ECC | 256GB PCIe flash storage | Dual AMD FirePro D300, 2GB GDDR5 each |
| Apple Mac Pro Desktop Computer | 3.7GHz quad-core Intel Xeon E5 | 16GB 1866MHz DDR3 ECC | 512GB PCIe flash storage | Dual AMD FirePro D300, 2GB GDDR5 each |
More Details on Our Top Picks
Apple Mac Pro (Late 2013), 3.7GHz Quad-Core Xeon, 64GB RAM, 512GB SSD (Renewed)
I rank this Late 2013 configuration first because it combines the group’s largest listed memory capacity with a 512GB SSD, making it the clearest fit for workloads where RAM matters more than raw core count. Its 3.7GHz quad-core Xeon is not the multi-core leader—that distinction belongs to the 12-core model—but the generous 64GB ECC memory gives it more room for larger projects and multitasking than either rival as supplied.
The dual FirePro D300 graphics and six Thunderbolt 2 ports retain the workstation character shared by all three picks. Compared with the 16GB quad-core model, this version is much better equipped for memory-intensive work; compared with the 12-core system, it has twice the listed RAM and storage capacity, but fewer CPU cores. I would favor it for a compatible legacy workflow that benefits from memory headroom, not for buyers seeking current-generation graphics, modern ports, or easy internal expansion.
The stated operating system is macOS Sierra, newer than the Yosemite listings on the other two, but it remains old software. I would check whether required applications and peripherals support that OS before buying. The listing also identifies certified refurbished condition and at least a 90-day warranty; the machine may arrive in generic packaging, and limited internal expansion makes the supplied configuration especially important to evaluate.
Pros:- 64GB ECC memory is the highest listed capacity in this comparison.
- 512GB SSD provides more included storage than the 12-core model.
- Dual FirePro D300 graphics and six Thunderbolt 2 ports suit compatible workstation setups.
- Listed macOS Sierra is newer than the Yosemite versions specified for the other picks.
Cons:- Four CPU cores trail the 12-core model for workloads that scale across many cores.
- Internal expansion is limited, and renewed packaging may be generic.
Best for: Buyers running compatible legacy applications that benefit from 64GB of ECC memory and want a 512GB SSD included.
Not ideal for: People who need a current macOS platform, straightforward internal upgrades, modern high-performance graphics, or a high-core-count CPU.
- Processor:3.7GHz quad-core Intel Xeon E5-1620 v2
- Memory:64GB 1866MHz DDR3 ECC SDRAM
- Storage:512GB SSD
- Graphics:Dual AMD FirePro D300, 2GB GDDR5 each
- Ports:6 Thunderbolt 2, 4 USB 3.0, 1 HDMI 1.4
- Networking:Dual Gigabit Ethernet, 802.11ac Wi-Fi, Bluetooth 4.0
- Operating system:macOS Sierra
- Condition and warranty:Certified refurbished; at least 90 days of warranty
Our verdict“I would choose this 64GB configuration for compatible legacy work where memory headroom matters more than maximum CPU core count.”
Apple Mac Pro Desktop, 12-Core 2.7 GHz Xeon E5, 32 GB RAM, 256 GB SSD (Renewed)
This is the processor-led pick: its 12-core 2.7GHz Xeon E5 gives it the most listed CPU cores in the roundup. For software that can distribute work across many cores, that configuration may be a better match than either quad-core Mac Pro. I rank it behind the 64GB model because the included 32GB RAM and 256GB PCIe flash storage are more restrictive, and the product listing specifies Mac OS X Yosemite.
Its dual FirePro D300 cards and six Thunderbolt 2 ports mirror the graphics and core connectivity offered by the other two options. The difference is what sits alongside them: compared with the 64GB model, this one trades half the memory and half the stated storage for eight additional CPU cores. Compared with the 16GB quad-core option, it doubles memory and offers far more cores, but starts with a smaller SSD. That makes it a focused workstation choice rather than the best-rounded configuration.
I would shortlist it only if the software I need can use multiple cores and is compatible with the listed OS. A 256GB drive can fill quickly with project files, and the supplied information does not promise an internal storage upgrade path. Certified refurbished units carry a minimum 90-day warranty, but may show wear or arrive with generic accessories and packaging, so I would check the seller’s exact return and condition terms.
Pros:- 12-core Xeon is the highest-core-count processor in this comparison.
- 32GB ECC memory exceeds the 16GB configuration in the entry-level quad-core model.
- Dual FirePro D300 graphics and six Thunderbolt 2 ports support a legacy workstation setup.
- Certified refurbished listing specifies a minimum 90-day warranty.
Cons:- 256GB PCIe flash storage is the smallest capacity in the group.
- Mac OS X Yosemite is an older listed operating system, and renewed units may show wear.
Best for: Users with compatible software that scales across many CPU cores and can work within 32GB RAM and 256GB of included storage.
Not ideal for: Buyers who prioritize high memory capacity, a larger system drive, newer software support, or a quiet path to future expansion.
- Processor:12-core Intel Xeon E5, 2.7GHz
- Memory:32GB 1866MHz DDR3 ECC
- Storage:256GB PCIe flash storage
- Graphics:Dual AMD FirePro D300, 2GB GDDR5 each
- Ports:6 Thunderbolt 2, 4 USB 3.0
- Wireless:802.11ac Wi-Fi, Bluetooth 4.0
- Operating system:Mac OS X Yosemite
- Condition and warranty:Certified refurbished; minimum 90 days
Our verdict“I would select this model when a compatible application can use its 12 cores and the smaller SSD and 32GB RAM fit the workload.”
Apple Mac Pro Desktop Computer, 3.7 GHz Quad-Core Intel Xeon E5, 16 GB RAM, 512 GB SSD (Renewed)
This quad-core model is the straightforward storage pick: it supplies a 512GB PCIe flash drive and the same 3.7GHz quad-core class processor and dual D300 graphics found in the 64GB option. I rank it third because its 16GB memory is the lowest capacity here. That may be adequate for lighter, compatible legacy tasks, but it leaves less headroom than the 32GB 12-core system and far less than the 64GB leader.
Against the 64GB Mac Pro, this configuration offers the same listed storage capacity and broadly similar core hardware, but gives up 48GB of RAM. Against the 12-core model, it has double the stated storage but only four CPU cores and half the memory. Those differences make this a reasonable fit when storage capacity and the compact workstation form matter more than parallel processing or extensive multitasking.
The compact enclosure includes six Thunderbolt 2 and four USB 3.0 ports, plus Wi-Fi and Bluetooth 4.0. I would not mistake those connections for modern workstation I/O: check display, storage, and accessory requirements before committing. The listed system is OS X Yosemite, so software support is a key limitation. The supplied details identify the item as renewed but do not specify a warranty duration, unlike the other two listings; I would confirm coverage and return conditions directly.
Pros:- 512GB PCIe flash storage matches the largest listed capacity in this group.
- Compact cylindrical enclosure fits a small desktop footprint.
- Dual FirePro D300 graphics are included alongside the Xeon processor.
- Six Thunderbolt 2 and four USB 3.0 ports provide several legacy connection options.
Cons:- 16GB RAM is the lowest capacity in the comparison.
- OS X Yosemite is dated, and the supplied product details do not state a warranty duration.
Best for: Buyers who need a compact renewed Mac Pro for lighter compatible tasks and prefer 512GB of included flash storage over a higher core count.
Not ideal for: People running memory-intensive projects, software that benefits from many CPU cores, or applications that require a newer macOS version.
- Processor:3.7GHz quad-core Intel Xeon E5
- Memory:16GB 1866MHz DDR3 ECC
- Storage:512GB PCIe flash storage
- Graphics:Dual AMD FirePro D300, 2GB GDDR5 each
- Ports:6 Thunderbolt 2, 4 USB 3.0
- Wireless:802.11ac Wi-Fi, Bluetooth 4.0
- Operating system:OS X Yosemite
- Condition:Renewed
Our verdict“I would pick this one for lighter compatible work when 512GB of flash storage matters more than memory capacity or multicore performance.”
How We Picked
I ranked these systems by how clearly their configurations serve different buyer needs, not by assuming that a higher core count or larger memory figure automatically makes one universally better. For this set of renewed 2013-era Mac Pros, I compared processor configuration, included RAM and storage, graphics, connection options, stated operating system, and the practical limits implied by the compact design.
The 64GB quad-core model leads because memory capacity is difficult to add to its value as supplied, and it combines that memory with a 512GB SSD. I place the 12-core model next for workloads that can use multiple CPU cores, while noting its smaller SSD and lower RAM. The 16GB model comes third: its 512GB flash storage and familiar port selection are useful, but the least memory gives it a narrower workload range than the other two. I also treat old operating-system listings and refurbished-unit uncertainty as real purchase considerations. I cannot infer current software compatibility, component condition, or upgrade options beyond the supplied details, so buyers should verify those points before ordering.
| renewed mac pro desktop | Operating system | Condition and warranty |
|---|---|---|
| Apple Mac Pro | macOS Sierra | Certified refurbished; at least 90 days of warranty |
| Apple Mac Pro Desktop | Mac OS X Yosemite | Certified refurbished; minimum 90 days |
| Apple Mac Pro Desktop Computer | OS X Yosemite | — |
Factors to Consider When Choosing Renewed Mac Pro Desktops
I would treat these renewed Mac Pros as specialized legacy workstations, then compare the configuration against the exact applications and peripherals I plan to use. Their compact shells look similar, but the memory, CPU, storage, operating-system listings, and warranty details change the buying decision.
Choose cores for the work your software can parallelize
The 12-core model is the only one here aimed squarely at high parallel CPU workloads. More cores help only when the applications can use them, so I would not select it based on the core count alone. For lighter tasks or software that relies more on a few active cores, either 3.7GHz quad-core option may be a more fitting configuration. The supplied specifications do not establish performance against current computers, so I would compare them against the actual workload rather than assume a general speed advantage.
Memory differences are more important than the matching graphics
All three listings specify dual AMD FirePro D300 graphics, but their memory capacities vary from 16GB to 64GB. I would favor the 64GB model for large projects or many simultaneous applications, while the 32GB option pairs moderate memory with a 12-core CPU. The 16GB version has the tightest memory allowance. Because upgrade details are not supplied and the 64GB listing notes limited internal expansion, I would buy based on the included configuration rather than count on a later memory change.
Balance drive capacity against CPU and memory
The 12-core system has a 256GB PCIe drive, while both quad-core configurations list 512GB storage. A smaller system drive can be workable if files live on external storage, but it leaves less room for applications and active projects. The 16GB model’s larger drive does not compensate for its lower memory if the software is RAM-hungry. I would decide whether my bottleneck is local capacity, memory, or processor parallelism before choosing.
Check old macOS and connection compatibility
The listings specify macOS Sierra for the 64GB system and Yosemite for the other two. Those are older operating systems, so I would verify that the apps, security requirements, displays, and peripherals in my setup support the machine as supplied. Thunderbolt 2, USB 3.0, and—in the 64GB listing—HDMI 1.4 provide useful legacy connections, but they are not a substitute for checking exact display resolution, adapter, and storage needs. Do not assume a current macOS installation is available.
Read renewed-condition and warranty terms carefully
Renewed hardware can differ in cosmetic condition, packaging, accessories, and stated coverage. Two product descriptions specify at least or a minimum of 90 days of warranty; the 16GB listing does not give a duration in the supplied information. I would check the seller’s current warranty, return window, included power and connection accessories, and unit condition before ordering. Those details can matter as much as a modest spec difference when buying an older workstation.
Frequently Asked Questions
Which renewed Mac Pro is the best fit for most memory-heavy legacy tasks?
I would start with the Late 2013 64GB model because it has the most memory and a 512GB SSD. It is not the right choice if an application depends on many CPU cores; the 12-core configuration may suit that workload better. In either case, I would confirm that the software supports the listed operating system.
Does the 12-core model make more sense than either quad-core Mac Pro?
It makes more sense when the workload can use many CPU cores and 32GB of memory and a 256GB drive are enough. The 64GB quad-core model offers more memory and storage, while the 16GB quad-core version also has a 512GB drive. I would base the choice on application behavior rather than core count alone.
Are these renewed Mac Pros suitable as everyday current computers?
I would be cautious about treating any of these as a general-purpose current desktop. The listings specify older versions of macOS or OS X, and the machines rely on older FirePro graphics and Thunderbolt 2. Check support for the exact apps, security requirements, displays, and accessories you rely on before making one your primary computer.
Which model has the most storage, and is that enough to choose it?
The 64GB and 16GB quad-core listings each specify 512GB, while the 12-core system lists 256GB. Storage capacity is only one factor: the 16GB model has the least memory, and the 12-core version has the most CPU cores. I would also account for project size and whether external storage works with my setup.
What should I verify before ordering a renewed Mac Pro?
I would confirm the exact condition, included accessories, return terms, and warranty duration, since the supplied listings do not describe these points equally. I would also verify the installed operating system, application compatibility, and display or storage connections. For the 16GB model in particular, I would ask the seller to clarify warranty coverage because no duration is stated in its supplied details.
Conclusion
For a compatible legacy workflow that benefits from generous RAM, I would choose the Late 2013 64GB Mac Pro; it has the best balance of memory and storage in this group. If my applications use many CPU cores, I would instead consider the 12-core model, provided 32GB RAM, a 256GB SSD, and its Yosemite listing fit the job. For lighter tasks where I want a 512GB drive and can accept 16GB RAM, the quad-core 16GB model is the simpler fit. I would skip all three if I need current macOS support, modern workstation connectivity, or a clearly documented upgrade path, and I would verify renewed condition and warranty details before buying.
