The rule of thumb here is to buy as much processing power as you can afford. In the pro mobile workstation market, workstation-grade CPUs are an investment. Whether it's the most powerful Core i9 or Core Ultra 9 chips from Intel, Apple's M5 Pro and Max CPUs, or AMD's best Ryzen 8000-series, AI 300, or AI 400 processors, what you spend is proportional to the power you get.

While plenty of decent gaming laptops, as long as they have a fast graphics card, can make do with a Core i5, mobile workstation shoppers should head straight for a Core i7 or Core i9—or their contemporary "Core Ultra" equivalents—with as many cores and threads as are available. Here, you'll want to look at the specific software you plan to run on the machine to get recommendations on the grade of CPU the vendor considers ideal.

The laptop CPUs in most legit mobile workstations come from Intel's or AMD's "H" class. What that means: These chips' model numbers end in "H," "HS," or "HX," indicating high-powered processors intended for this level of work. (CPUs for lighter—and lighter-hitting—laptops tend to end with the letter "U," "P," or "V." See more about how to choose a laptop CPU in our deep-dive guide.) Most mobile workstations rely on processors with 10 or more cores teamed with plenty of memory—16GB is a minimum, with 32GB common and 128GB a popular ceiling. Again, your software's suggested requirements should be your guide, but erring on the side of "more" here, especially for demanding applications, is a safe bet. Again, let the software makers' recommendations guide you.

Some (but not all) workstation configurations support server-style error-correcting code (ECC) memory, which can detect and fix single-bit memory errors. ECC DRAM is a mainstay in financial or scientific computing applications, where even the slightest internal data corruption cannot be permitted. That said, ECC RAM is outside the mainstream for most ISV apps.

Read our guide on how much memory your system needs across various use cases for more detailed information, especially in this year of ongoing RAM shortages driven by strong demand from big AI data-center players.

Mobile workstation owners work with massive data files, so these laptops need ample storage. That typically means one or more M.2 solid-state drives, with capacities ranging from 512GB up to several terabytes per drive, and some larger machines offering more than one M.2 slot. Given how often workstation users work on larger, data-intensive projects, we recommend at least 1 TB of storage on any system you're considering.

For still more storage capacity, nowadays, we don't consider a new-model workstation worthy of the name unless it has at least one Thunderbolt 4 or Thunderbolt 5 port for high-speed connection to external drives and RAID arrays, as well as single or multiple high-resolution displays. If Thunderbolt's daisy-chaining connectivity is too much of an investment for you, a growing number of desktop docking stations use the technology to provide one-plug access to ports aplenty.

Finally, note the touchpad located in the palm rest south of the space bar. Many CAD and other workstation apps support three mouse buttons, so it's worth checking whether a system has a middle button instead of just the usual two.