Lenovo M Series Towers ThinkCentre M90t Gen 6 Tower Review
The Lenovo ThinkCentre M90t Gen 6 packs a graphics powerhouse but saddles it with underwhelming RAM and storage, making it a confusing and niche buy.
The 30-Second Version
This Lenovo tower has a beastly integrated GPU with 48GB VRAM, but it's shackled by terrible RAM and storage. Its GPU is top-tier, but the overall package isn't worth buying unless you need that specific graphics power and plan to upgrade the rest.
Overview
The Lenovo ThinkCentre M90t Gen 6 is a business tower with a weirdly powerful secret. It's built for office desks, with a solid Intel CPU and a Windows 11 Pro license. But then Lenovo threw in an AMD GPU with 48GB of VRAM, which is a monster amount for integrated graphics. That makes this a strange hybrid: a corporate PC with specs that hint at something more.
Performance
The AMD integrated GPU is the star here, landing in the top tier for graphics performance. That 48GB VRAM is huge, but it's paired with a CPU that's just average and a meager 8GB of DDR5 RAM. The 256GB SSD is also a letdown, ranking near the bottom. So you get a graphics powerhouse bolted onto a system with underwhelming core components. It's fast for some tasks, but bottlenecks everywhere else.
Pros & Cons
Pros
- The integrated GPU with 48GB VRAM is a standout feature. 95th
- Windows 11 Pro is included for business management. 72th
- The tower form factor offers decent internal space. 69th
- DisplayPort and HDMI 2.1 support 4K output.
Cons
- The 8GB of RAM is a major bottleneck for modern workloads. 23th
- The 256GB SSD is tiny and disappointingly slow. 26th
- Overall system reliability scores are poor.
- The CPU is middle-of-the-pack and can't keep up with the GPU.
Specifications
Full Specifications
Processor
| CPU | Intel Core Ultra 5 225 |
| Cores | 10 |
| Frequency | 4.4 GHz |
| L3 Cache | 20 MB |
Graphics
| GPU | Graphics |
| Type | integrated |
| VRAM | 48 GB |
| VRAM Type | GDDR6 |
Memory & Storage
| RAM | 8 GB |
| RAM Generation | DDR5 |
| Storage | 256 GB |
| Storage Type | NVMe SSD |
Build
| Form Factor | Tower |
| PSU | 500 |
| Weight | 6.5 kg / 14.3 lbs |
Connectivity
| HDMI | HDMI® 2.1 (supports resolution up to 4K@60Hz) |
| DisplayPort | 2 x DisplayPort™ 1.4 |
System
| OS | Windows 11 |
Value & Pricing
At around $734, this is a confusing proposition. You're paying for a top-tier GPU trapped in a budget-minded chassis. The weak RAM and storage cripple its potential. For a pure business workstation, you could get a better-balanced system for less. For anyone needing that GPU power, you'd want to pair it with better components, which this doesn't offer. It's not a good value for most people.
vs Competition
Compared to gaming desktops like the HP OMEN 45L or Alienware Aurora, the M90t falls apart. Those systems balance strong CPUs, ample RAM, and fast storage with great GPUs. Even Lenovo's own Legion Tower 5i is a better all-around performer. The M90t's GPU score is impressive, but its other specs are so far behind that it can't compete. It's a specialist tool in a field of generalists, and the specialists probably want a different tool.
Common Questions
Q: Can I upgrade the RAM and storage in this ThinkCentre?
Yes, the tower form factor should allow upgrades, but you'll need to do it yourself as the base 8GB RAM and 256GB SSD are major weaknesses.
Q: Is this good for gaming?
No, our score puts it near the bottom for gaming. The GPU is strong, but the slow CPU and minimal RAM will cripple game performance.
Q: What's the benefit of the optional NPU?
The Neural Processing Unit can accelerate AI tasks like local language models or video meeting enhancements, which might help in specific business workflows.
Who Should Skip This
Skip this if you're a gamer, a developer needing RAM, or anyone who values system reliability. Our data shows its reliability scores are poor. If you need a balanced, dependable workstation for daily tasks, look elsewhere because this PC's core specs are a letdown.
Verdict
Buy this only if your workload is extremely GPU-centric and you're on a strict budget where you can't upgrade the RAM and storage yourself immediately. It's a weird fit for a business that needs AI acceleration (thanks to the optional NPU) but doesn't need much memory. For almost everyone else, especially gamers or developers, there are better options.