Dell Pro Slim Plus Pro Slim Plus QBS1250 Slim Standard Black 2025 Review

The Dell Pro Slim Plus has a great office CPU (73rd percentile) and high reliability (78th percentile), but it's hamstrung by a tiny 256GB SSD (18th percentile). It's a competent business PC that demands an immediate storage upgrade. Don't even think about gaming on it.

The Dell Pro Slim Plus is a business desktop that knows its lane. With a CPU performance score in the 73rd percentile and reliability ratings in the 78th, it's built for the daily grind, not the gaming arena. Its 16GB of DDR5-5600 RAM is solid, landing in the 54th percentile, but the 256GB SSD is a real pinch point, sitting way down in the 18th percentile. That's a tight fit for modern work.

This isn't a flashy machine. It's a 6.6kg box with integrated graphics and a 260W power supply, which tells you everything about its ambitions. It scored a 75 out of 100 for business use in our tests, but a dismal 12.5 for gaming. If you're looking for a dependable, compact office PC that can handle spreadsheets, emails, and video calls without fuss, this is a contender. Just don't ask it to do anything else.

Let's talk about what this thing is good at. That Intel Core Ultra 5 235 is a 14-core chip, and it pushes this desktop into the 73rd percentile for CPU performance. In practical terms, that means it chews through business applications, multitasking, and AI-accelerated office tasks with ease. It's a very capable processor for the price bracket.

The rest of the specs are a mixed bag. The 16GB of fast DDR5 RAM is a good pairing for that CPU. But the integrated Intel Graphics land in the 37th percentile, which is fine for driving three DisplayPort monitors but nothing more. The real bottleneck is storage. A 256GB NVMe SSD in 2024 is borderline cruel, putting it in the bottom 18% of desktops we track. You'll be managing that free space like a hawk.

Priced between $1329 and $1362, the value proposition hinges entirely on your needs. For a pure business workstation where reliability and CPU power are king, the 78th and 73rd percentile scores there are compelling. However, that stingy 256GB SSD at this price point is hard to swallow. You're paying a premium for the Dell brand and the Windows 11 Pro license, while making a serious compromise on a core component. There are better-equipped business desktocks out there for the money, if you're willing to shop around.

Stacked against its supposed 'competitors' like the HP Omen 45L or Alienware Aurora, this isn't even a fair fight—those are gaming beasts. A more apt comparison is against other business-focused towers. The Lenovo Legion Tower 5i, for instance, often packs a dedicated GPU and more storage for similar money, making it a hybrid option. The Dell wins on pure office reliability and its slim form factor, but loses badly on expandability and multimedia potential. Against something like a base-spec business PC from HP or Lenovo, the Dell's CPU is a standout, but its storage is a glaring weak spot.

Gamers and creatives should look elsewhere immediately. With a GPU in the 37th percentile and a gaming score of 12.5, this PC can't run modern games. Anyone who works with large files—video editors, data analysts, photographers—should also skip it. The 256GB SSD (18th percentile) will be a constant frustration. You need more breathing room.

We can recommend the Dell Pro Slim Plus, but with a giant asterisk. If your IT department demands a reliable, brand-name desktop for standard office work and is willing to immediately upgrade the SSD, the core CPU and build quality are excellent. For anyone else—especially home office users or those needing more than 256GB of space—the value isn't there. You're buying a fast engine in a car with a tiny gas tank.