HP Pro Mini Pro Mini 400 G9 2023

A tiny office PC that nails reliability and port selection but punishes you the moment you ask it to do more than basic work. Only worth it if you score the $840 deal and never plan to game or edit anything.

HP's Pro Mini 400 G9 is a classic cube of business practicality. It's not here to turn heads or set benchmark records. It's here to sit quietly under your monitor, run Office apps, and not bother you. And for that, it does a solid job. With vPro manageability and a decent port selection, it's built for IT departments more than home users.

But the moment you ask anything beyond light productivity, the cracks show. An integrated GPU that's stuck in the last decade, DDR4 RAM in a world moving to DDR5, and a mediocre CPU leave it gasping for breath on anything remotely demanding. It's a one-trick pony, and that trick is 'reliable office drone.'

The i5-12500T is perfectly polite for email and spreadsheets, but it's middle-of-the-pack at best in our database (37th percentile). Multitasking with a dozen browser tabs is fine, but throw in a large Excel model or a video call with background blur, and you'll notice the stutter. The real letdown is the Intel UHD Graphics 770, which sits in the 32nd percentile. You can forget gaming entirely. Even editing photos feels sluggish at times. It's a business PC through and through, and that means graphics were an afterthought.

Pricing is all over the place. We've seen it listed anywhere from $840 up to $1169. At the low end, if you absolutely need a vPro Mini PC with legacy ports, it's a fair deal. At the high end, you're getting ripped off. Shop around and don't pay more than $900 for this configuration.

The elephant in the room is the Apple Mac mini M4. For around the same money (or less, in some configs), Apple gives you an absolute beast of a chip that crushes the i5-12500T in both CPU and GPU performance, sips power, and even runs fanless. But the Mac mini ditches USB-A and lacks native vPro management. If your office runs on Windows and needs that hardware-level security and remote manageability, the HP makes sense. Otherwise, the Mac mini is just a better computer by nearly every measure. Among Windows competitors, the Dell OptiPlex Micro or Lenovo ThinkCentre Tiny are cut from the same cloth, and we'd compare those if you're locked into a Windows ecosystem.

If you're looking for a home PC to play games, edit video, or even just feel snappy with a dozen heavy browser tabs, this isn't it. Go get a Mac mini M4 or a compact gaming PC instead. The integrated graphics here are a major bottleneck, and you'll be disappointed.

The HP Pro Mini 400 G9 is a focused tool for a focused job. If you're an IT manager provisioning desks with managed, compact Windows boxes that handle basic office tasks, it's a reliable choice. For everyone else, the weak graphics, aging DDR4, and inflated pricing at many retailers make it a tough sell. There are simply better, newer mini PCs out there that don't compromise this hard on performance.