Three families dominate the refurbished business desktop market — Dell OptiPlex, HP ProDesk and Lenovo ThinkCentre. All three are superb value. This guide explains how they differ and helps you pick the right one.
Here’s the honest truth: for everyday business work — Office, email, browsing, video calls and most business software — a Dell OptiPlex, an HP ProDesk and a Lenovo ThinkCentre of the same specification perform identically. They all use the same Intel Core i5 or i7 processors, the same RAM and SSDs, and the same Windows 11 Pro. They all come from corporate and government fleets, retired early and professionally refurbished. So the choice isn’t about power — it’s about size, ports, price and what we have in stock. Below we break down each one.
The three families compared at a glance.
| Dell OptiPlex | HP ProDesk | Lenovo ThinkCentre | |
|---|---|---|---|
| Form factors | Tower, SFF, Micro, AiO | Tower, SFF, Mini | Tower, SFF, Tiny |
| Mini called | Micro | Desktop Mini | Tiny |
| Known for | Widest stock, the default | Value, easy servicing | Premium build, neat design |
| Performance | i5 / i7 | i5 / i7 | i5 / i7 |
| Best for | Standard fleet rollouts | Budget-conscious offices | Space-tight desks |
All three ship with an SSD, Windows 11 Pro and our 12-month warranty — graded and 20-point tested.
The most widely deployed business desktop in Australia, so it has the widest stock and choice of any brand. The safe pick for most buyers and fleets. Shop Dell OptiPlex →
Just as reliable, usually a touch cheaper, and famously easy to open and service. Great when you want the most machine per dollar. Shop HP ProDesk →
Built to ThinkPad-grade standards with a neat, premium feel. The Tiny is a favourite for clean, space-tight desks. Shop Lenovo ThinkCentre →
The Micro, Mini and Tiny are all mini PCs. If footprint is your priority, browse the whole mini PC range — our mini PC buying guide compares the form factors.
For schools and businesses, pick whichever brand we have in volume at the spec you need — reliability is equal. See business desktops or ask about bulk pricing.
Start with size: if desk space and silence matter most, go for a Micro, Mini or Tiny — otherwise an SFF is the comfortable office standard, and a Tower gives you the most room to expand. Next, spec to your work: an i5 with 16GB RAM and a 256–512GB SSD covers the vast majority of office and home use; step up to an i7 only for heavy multitasking. Then buy on stock and price — because all three brands are equally reliable at the same spec, the smartest move is to take whichever of the OptiPlex, ProDesk or ThinkCentre we have in the size and condition you want at the best price. Finally, match the grade to your eye: every grade carries the same 12-month warranty, so a Good or Acceptable unit performs identically to a Premium one for less.
Browse all three families and comparable machines on our business desktops page — SSD, Windows 11 Pro and a 12-month warranty as standard, with free shipping Australia-wide.
LAST UPDATED · JUN 2026 · CLS BUYING GUIDE
