These three desktop lines dominate corporate IT. Whether you’re equipping an office or buying a refurbished machine, understanding the differences helps you make the right choice.
Form Factor Options
| Form Factor | Dell OptiPlex | HP EliteDesk/ProDesk | Lenovo ThinkCentre |
|---|---|---|---|
| Tower | OptiPlex Tower | EliteDesk/ProDesk Tower | ThinkCentre Tower |
| Small Form Factor | OptiPlex SFF | EliteDesk/ProDesk SFF | ThinkCentre SFF |
| Mini/Micro | OptiPlex Micro | EliteDesk Mini/ProDesk Mini | ThinkCentre Tiny |
| Ultra-Small | OptiPlex Ultra | N/A | ThinkCentre Nano |
Upgradeability
All three brands offer excellent upgradeability in Tower and SFF form factors — 4 DIMM slots, multiple storage bays, and PCIe expansion. Mini/Micro models are more limited with 1-2 SO-DIMM slots and M.2 storage only. Dell OptiPlex Micro stands out with a modular design that supports optional GPU or additional storage modules.
Value — New vs Refurbished
New corporate desktops cost £500-1000. Refurbished units from 1-3 years ago offer exceptional value at £150-300 — often with an i5 processor, 8-16GB RAM, and SSD. All three brands are readily available refurbished. Upgrading a refurbished unit with more RAM and an SSD creates a highly capable machine for under £250.
Our Verdict
For new purchases, all three are equally excellent — let your reseller pricing decide. For refurbished, Dell OptiPlex has the widest availability and aftermarket part ecosystem. All three accept standard components (DDR4/DDR5 DIMMs, M.2 NVMe SSDs) making upgrades straightforward.
Frequently Asked Questions
Which business desktop is easiest to upgrade?
Dell OptiPlex and Lenovo ThinkCentre feature the most tool-less designs. HP requires slightly more effort to access components.
Are refurbished business desktops worth buying?
Yes. Refurbished Dell OptiPlex, HP EliteDesk, and Lenovo ThinkCentre units offer excellent value at £150-300.
