Lenovo ThinkCentre M90a Pro Gen 6 2025, Core Ultra 9 285 vPro, 64GB, 1TB SSD, RTX 4050, Raven Black with Stormy Gray

A monster RAM config and a great display trapped in a body with a mid-tier GPU. Buy it for the clean desk, not the AI hype.

The spec sheet looks serious on paper: 24 cores, 64GB of DDR5, a terabyte of NVMe storage. In our database, the RAM sits in the 97th percentile, which means this thing will chew through Docker containers, VMs, and Chrome tabs like they're not even there. The CPU and GPU are both solidly above average, but here's the thing that surprised us: the RTX 4050 is the bottleneck. It's a fine card for light rendering and older CUDA workloads, but if you're doing anything modern with local AI models, the 48.1 AI score tells the real story. This is not an AI powerhouse, no matter what the marketing says.

The M90a Pro sits in a weird spot. The Apple Mac Studio M4 Max absolutely destroys it in raw compute and AI workloads, but that's a headless box, you'll need your own display. The HP OMEN B91WHAA#ABA is a gaming-focused tower that will run circles around the RTX 4050 in graphics, but it's a tower, not an AIO. The MSI MEG Vision X AI is the closest philosophical competitor, another AI-branded desktop, but again, it's a tower with a much beefier GPU. If you want an all-in-one with this much RAM and a discrete GPU, the M90a Pro is basically alone in its class, which is probably why Lenovo can charge what it does.

At $3,449 USD, this is a tough sell unless you absolutely need the all-in-one form factor. You're paying a premium for the clean desk aesthetic and the integrated display. If you don't care about that, you can build or buy a tower with a much better GPU for the same money. But if the AIO is non-negotiable, this is one of the few options with this much RAM and a discrete GPU.

The ThinkCentre M90a Pro Gen 6 is Lenovo throwing a Core Ultra 9 and an RTX 4050 into a 27-inch all-in-one and calling it a day. And honestly? For a very specific type of buyer, that's almost enough. This is a workstation for people who want a clean desk, a great QHD display, and enough muscle for serious development work without a tower humming under their feet. But the AI angle Lenovo keeps pushing feels more like a sticker on the box than a reason to buy.

If you're doing any serious GPU work, 3D rendering, or local AI development, skip this. The RTX 4050 will frustrate you within a week. Go get a tower with an RTX 4070 or better, or a Mac Studio if you're in the Apple ecosystem. This machine is for developers who live in IDEs and browsers, not GPU-bound workloads.

The ThinkCentre M90a Pro Gen 6 is a very good all-in-one for developers who want a clean setup and don't need serious GPU horsepower. The 64GB of RAM and Core Ultra 9 will keep you productive for years. But the RTX 4050 is a real limitation, and the AI marketing is misleading. If you need real GPU performance or local AI work, get a tower. If you want the best AIO for development, this is it, just know what you're giving up.