Lenovo ThinkCentre M90a Gen 6 2025, Core Ultra 5 225, 8GB, 256GB SSD, Raven Black

The ThinkCentre M90a Gen 6 is a sleek, practical all-in-one for offices and front desks, with a genuinely useful adjustable stand and built-in camera. The Core Ultra 5 225 is snappy for everyday tasks, but 8GB of RAM and a 256GB SSD hold it back badly. At $1,399, you're paying for the form factor, not the performance. Skip it if you multitask heavily or want to game at all.

The Core Ultra 5 225 is a solid mid-range chip. It sits around the 68th percentile in our database, which means it's not going to embarrass itself in everyday tasks, but it's also not going to win any rendering contests. The 10 cores and 4.4GHz boost clock chew through spreadsheets, email, and browser tabs without much drama. Owners consistently mention fast boot times and snappy responsiveness, and that lines up with what we'd expect from this processor paired with an NVMe SSD.

The integrated graphics are where things get interesting, and not in a great way. The spec sheet claims 48GB of VRAM, but that's shared system memory, not dedicated video RAM. In practice, this machine lands in the 59th percentile for GPU performance, which is fine for video playback and light photo editing, but gaming is a non-starter. Our database puts gaming at 13.3 out of 100, which is one of the weakest scores we've seen for that use case. If you want to play anything beyond solitaire or very old titles, this isn't your machine. The 8GB of RAM also sits in the 18th percentile, which is a real bottleneck. Windows 11 alone will happily eat 4-5GB, leaving you with very little headroom for anything beyond a few browser tabs and a document or two.

Compared to the Apple Mac Studio M3 Ultra, the M90a Gen 6 is in a completely different league, and not in a good way. The Mac Studio is a performance monster for creative professionals, while the ThinkCentre is a practical office machine. They're not really competitors, but if you're cross-shopping them, the Mac Studio will absolutely demolish the Lenovo in CPU and GPU tasks. The trade-off is price and form factor. The Mac Studio requires a separate display, keyboard, and mouse, while the M90a is ready to go out of the box.

Against something like the Alienware Aurora ACT1250 or HP OMEN GT16-0364, the story flips. Those are gaming desktops with discrete GPUs that will run circles around the ThinkCentre in any graphics-intensive task. But they're towers with no display, no camera, and no speakers. The Dell Desktop ECT1250 is probably the closest real-world competitor, offering similar business-focused specs in a traditional tower format. You'd get more upgradeability with the Dell, but you'd lose the all-in-one convenience. The CLX SET TGMSETRTU5204BM is another tower option that likely offers better raw specs for the money, but again, no integrated display.

At $1,399 USD, the M90a Gen 6 is priced like a premium all-in-one, but the specs don't quite back that up. You're paying for the form factor, the adjustable stand, and the enterprise-grade build quality, not raw performance. For the same money, you could get a traditional desktop with double the RAM, a larger SSD, and a discrete GPU, but you'd lose the clean single-unit design and the touchscreen.

The value proposition really depends on what you prioritize. If you're an IT manager buying for a fleet of front desk or clinical workstations, the simplicity and reliability of an all-in-one might justify the premium. But for a home user, this is a tough sell. The 8GB of RAM and 256GB SSD mean you'll likely need upgrades or external storage within a year or two, and that erodes the value quickly. The competitive pricing that some owners mention in reviews seems to come from sale prices or bulk discounts, not the list price.

The ThinkCentre M90a Gen 6 is Lenovo's latest all-in-one aimed squarely at offices and home desks that need a clean setup without a tower cluttering the floor. You get a 23.8-inch display, an Intel Core Ultra 5 225 with 10 cores, and Windows 11 in a single 6kg package. It's the kind of machine IT departments love because there's one box to unbox, one cable to plug in, and everyone looks like they have a tidy workspace.

But here's the thing. The spec sheet tells a slightly odd story. You've got a modern Core Ultra chip with a built-in NPU for AI workloads, Wi-Fi 7, and Thunderbolt connectivity, but then Lenovo paired it with 8GB of RAM and a 256GB SSD. That's a strange combo for 2025. It's like putting racing tires on a commuter sedan. The processor is ready for serious multitasking, but the memory and storage will have you clearing browser tabs and uninstalling apps before long.

Who's this actually for? Front desk staff, reception areas, medical offices, classrooms, and home users who mostly live in a browser and a few Office apps. If you're not pushing heavy creative software or gaming, the M90a Gen 6 handles daily work without breaking a sweat. And the built-in camera, speakers, and highly adjustable stand make it genuinely practical for video calls and shared workstations.

If you're a gamer, just move along. The 13.3/100 gaming score isn't a suggestion, it's a warning. Even older titles will struggle on the integrated graphics, and the 8GB of RAM won't help matters. Look at something like the Alienware Aurora ACT1250 or HP OMEN GT16-0364 if you want to play anything made in the last decade.

Power users and heavy multitaskers should also think twice. If you routinely keep 20 browser tabs open while running Excel, Slack, and a video call, the 8GB of RAM will have you staring at loading spinners. The 256GB SSD is another pain point, filling up fast with just Windows 11, a few apps, and some local files. For the same money, a traditional desktop like the Dell Desktop ECT1250 will give you far more headroom, even if it means dealing with a tower and separate monitor.

For a front desk, reception area, or shared workstation, the M90a Gen 6 is a genuinely good choice. The adjustable stand is a standout feature for accessibility, the built-in camera and speakers simplify video calls, and the Core Ultra 5 225 handles everyday office tasks without complaint. The compact footprint and clean cable situation make it easy to deploy and easy to keep tidy. If that's your use case, you'll probably be happy with it.

But for a home office power user or anyone who multitasks heavily, the 8GB of RAM is a dealbreaker. You'll feel the pinch within weeks, not years. And if you have any gaming ambitions at all, look elsewhere. The 13.3/100 gaming score isn't just bad, it's a clear signal that this machine was never designed for that. For home users, I'd suggest looking at a traditional desktop with 16GB of RAM and a 512GB SSD minimum, or consider a different all-in-one with better base specs.