Minisforum UM870 Slim Silver

The CPU is well above average, but the reliability score is one of the worst we've seen at the 11th percentile. You get 32GB of RAM and a 1TB SSD in a tiny, quiet package for $1079. The integrated graphics are dead last for gaming, so keep your expectations in check.

The Ryzen 7 8745H is the star here, an 8-core, 16-thread chip that boosts up to 5.0GHz. In our database, it puts the UM870 Slim in the 64th percentile for CPU performance, which is well above average for a mini PC. For compiling code, running VMs, or blasting through spreadsheets, this thing is a little powerhouse. The 32GB of DDR5 RAM helps, though it's worth noting that RAM capacity sits at the 46th percentile, right around average. You won't run out of memory for most tasks, but heavy multitaskers might eye that number.

The integrated Radeon 780M is where things fall apart if you care about graphics. It's in the 9th percentile, which is a real letdown. You can forget about modern AAA gaming at anything beyond low settings, and even then, you'll be leaning hard on FSR. The customer reviews mention being surprised by the gaming performance after adding fast RAM, and that's true to a point. The 780M can handle lighter esports titles and older games, but it's not a gaming machine. For media playback, it supports 8K@60Hz output over HDMI 2.1 and USB4, so it's perfectly fine as a high-res media center.

Stacked against the competition, the UM870 Slim is in a weird fight. The Apple Mac Studio M4 Max absolutely destroys it in GPU performance and reliability, but costs significantly more. The HP Omen 45L and ASUS ROG GM700TZ are full-sized gaming towers that make the Slim's 9th percentile GPU look like a toy, but they're also massive and power-hungry. The Lenovo Legion Tower 5a Gen 10 offers a better balance of CPU and GPU if you need some gaming chops. The Dell Tower Plus sits in a similar productivity-focused space but with better reliability scores. The Slim's only real advantage is its size. If you need the smallest possible footprint and don't care about gaming, it's a contender. Otherwise, those towers offer way more peace of mind.

At $1079, the UM870 Slim is a mixed bag on value. You're getting a capable 8-core CPU, 32GB of RAM, and a 1TB NVMe drive in a tiny chassis. That's not a bad price for a productivity-focused mini PC, especially with USB4 and Wi-Fi 6E thrown in. But the reliability concerns drag the overall value down. If this thing dies on you in a year, that $1079 starts looking a lot less appealing. For pure CPU grunt in a small package, it's competitive. Just know you're rolling the dice on long-term durability.

The Minisforum UM870 Slim lands in a strange spot. Its social proof score sits in the 75th percentile, which is solid, but the reliability score is a rough 11th percentile, one of the worst we've seen. You're getting a Ryzen 7 8745H with 32GB of DDR5 and a 1TB PCIe 4.0 SSD for $1079, and on paper that looks like a killer deal for a mini PC. The CPU performance is well above average, making it a strong choice for home office and developer tasks where it scores in the low 50s out of 100.

But the numbers tell a story of extremes. The integrated Radeon 780M graphics land in the 9th percentile for GPU performance, which is dead last for any kind of serious gaming. Storage and port selection are both strong, sitting in the 73rd and 70th percentiles respectively. So you have a tiny box with fast storage, plenty of connectivity including USB4, and a CPU that can chew through work. Just don't expect it to do everything.

Anyone who values reliability should skip this. An 11th percentile reliability score is a dealbreaker for a work machine. Gamers should also look elsewhere, the 9th percentile GPU and 8.6 gaming score make this a non-starter for anything beyond the lightest titles. If you need a machine that just works for years without headaches, spend a bit more on a Mac Studio or a Dell tower. The UM870 Slim is for tinkerers who are okay with a potential failure down the line.

The Minisforum UM870 Slim is a frustrating product. The CPU performance is genuinely impressive for a box this small, and the included 32GB of RAM and 1TB SSD make it ready to work out of the box. But the 11th percentile reliability score is a massive red flag. We can't recommend a machine that might not last, especially when there are more dependable options out there. If you're willing to gamble on longevity for the sake of a compact, quiet workstation, it might pay off. For everyone else, look at something with a better track record.