Lenovo M Series AIO ThinkCentre M90a Gen 6 Review
The Lenovo ThinkCentre M90a Gen 6 AIO packs a powerful CPU into a clean design, but its graphics and reliability scores make it a niche office machine.
The 30-Second Version
The ThinkCentre M90a Gen 6 AIO has a fantastic 20-core CPU and great ports, but its graphics are weak and reliability scores are low. It's best for office workers who hate cables, not for gamers or creatives. At $1309, it's a questionable value.
Overview
The Lenovo ThinkCentre M90a Gen 6 is an all-in-one desktop that tries to do a lot. It's built for business, packing a surprisingly powerful 20-core Intel CPU and a clean, cable-free design into its 24-inch frame. But it's not trying to be your gaming rig or your creative powerhouse. This is a machine for keeping your desk tidy and your spreadsheets humming.
Performance
That 20-core Intel CPU is the star here. It's a standout performer, ranking in the 86th percentile, and it'll handle heavy multitasking and complex calculations without sweat. The ports are also top-tier, with Thunderbolt and HDMI 2.1 out for connecting high-res monitors. The weak spots are clear: the integrated Intel graphics are mediocre, ranking in the 38th percentile, so gaming or video editing is a no-go. The SSD and RAM are just solid, middle-of-the-pack specs. And our data shows its reliability score is disappointing, falling behind most other desktops.
Pros & Cons
Pros
- The 20-core Intel CPU is a powerhouse for multitasking. 90th
- The port selection, including Thunderbolt, is best-in-class. 85th
- The all-in-one design keeps your workspace clean and simple. 72th
- It comes with Windows 11 Pro for business features.
Cons
- The integrated graphics are underwhelming and can't handle gaming.
- The 512GB SSD is about average and might feel cramped.
- Reliability scores in our database are a weak spot.
- It's not a good value for anyone needing graphical performance.
Specifications
Full Specifications
Processor
| CPU | Intel Core Ultra 7 265 |
| Cores | 20 |
| Frequency | 4.6 GHz |
| L3 Cache | 30 MB |
Graphics
| GPU | Intel Graphics |
| Type | integrated |
Memory & Storage
| RAM | 16 GB |
| RAM Generation | DDR5 |
| Storage | 512 GB |
| Storage Type | NVMe SSD |
Build
| Form Factor | All-in-One |
| Weight | 6.0 kg / 13.2 lbs |
Connectivity
| Thunderbolt | USB-C® (Thunderbolt™ 4 |
| HDMI | HDMI® 2.1 out (supports resolution up to 4K@60Hz) & HDMI® 1.4 in (supports resolution up to AIO panel resolution 2560 x 1440@120Hz) combo |
| DisplayPort | DisplayPort 1.4 out |
| Wi-Fi | WiFi 7 |
| Bluetooth | Bluetooth 5.4 |
System
| OS | Windows 11 Pro |
Value & Pricing
At around $1309, this is a tough sell. You're paying a premium for the all-in-one form factor and that strong CPU, but you're getting mediocre graphics, average storage, and questionable reliability. If you absolutely need a tidy desk and CPU power, it might be worth considering. But for most people, a traditional desktop tower will give you better specs and more upgrade flexibility for the same money.
vs Competition
Compared to gaming desktops like the HP OMEN 45L or the Alienware Aurora, this ThinkCentre is a different beast. Those machines crush it in graphics and gaming performance, but they're bulkier and cost more. Against other business PCs, like Lenovo's own T Series towers, you lose the sleek AIO look but gain better reliability and often more storage options. The MSI Aegis or Asus ROG NUC are more balanced for mixed use. Basically, this ThinkCentre trades graphical power and reliability for a clean desk and a fast processor.
Common Questions
Q: Can I use this for gaming or video editing?
No, the integrated Intel graphics are mediocre and can't handle modern games or serious video work. It's built for office tasks.
Q: Is the all-in-one design easy to upgrade?
Not really. AIOs are typically harder to upgrade than tower desktops. You're mostly stuck with the 16GB RAM and 512GB SSD it comes with.
Q: How good are the ports for connecting extra monitors?
Excellent. It has Thunderbolt and HDMI 2.1 out, which are some of the best ports available for connecting high-resolution external displays.
Who Should Skip This
Skip this if you play games, edit videos, or need a reliable machine for long-term use. The graphics are a letdown, and our reliability data is concerning. Also, if you want to upgrade your RAM or storage later, get a traditional desktop tower instead.
Verdict
Buy this if you're in a corporate or home office setting where desk space is sacred and your work is purely CPU-intensive, like data analysis or coding. You need that tidy look and the raw processing threads, and you don't care about games or creative apps. It's a niche machine for a niche need.