To help us provide you with free impartial advice, we may earn a commission if you buy through links on our site. Learn more
Lenovo’s ThinkCentre 91z 7075D2G is a more suitable business PC than most all-in-ones we look at, with the exception of Apple’s iMac range. However, it’s also a perfectly viable home computer, and its business origins provide a number of features that set it apart from the majority of all-in-ones, most notably a massive three-year onsite warranty that’ll have a repairman at your door within two business days of a fault being reported.
Like Apple, Lenovo has seen no need to use a touchscreen for the PC’s 21.5in integrated display. This immediately cuts out the risk of a certain graininess that some touchscreens suffer. The display is glossy, though, and rather reflective if you’re viewing a dark screen with a bright light behind you. However, colours are soft and natural-looking, although pure white tones aren’t quite as bright as we’ve seen from our favourite monitors. Nonetheless, the 1,920×1,080 display is certainly up to the job. You can even use it as a standalone monitor, thanks to the VGA input at the back, and effortlessly switch between the input and PC at the press of a button on the front panel.
Inside, the PC has a 2.5GHz Intel Core i5-2400S processor – a power-efficient choice that we’ve seen in many of our favourite all-in-one PCs. It’s doing a good job here, powering the 7075D2G to an overall score of 81 in our benchmark tests. The system comes with 4GB of memory; other versions of the PC come with more, and all incarnations are installed with a 64-bit version of Windows Professional.
The graphics processor is among the 7075D2G’s weakest points – it relies on the Core i5’s on-board GPU, which means that the best 3D gaming score we were able to get was 12.5fps in Dirt 3 at a resolution of 1,280×720 and High quality. You’ll be able to run older games more smoothly, and casual gaming won’t be a problem, but don’t expect too much. The PC’s other great problem is the capacity of its hard disk. At just 320GB, with 10GB occupied by the restore partition, we’ve not seen a PC with less disk space in quite some time.
The remainder of the system’s specification is rounded out with a memory card reader, DVD re-writer and six USB ports. There are no USB3 ports, which is a shame given the brand new Intel processor. We we were pleased to find that the system has an HDMI output, which makes it particularly easy to connect a second monitor, a projector or a larger display.
The integrated speakers, although lacking in bass, puts out a balanced and clear sound. There are also the obligatory 3.5mm headphone and mic ports for headset users. The mouse is a little small but we found it for extended use. The keyboard has a similar finish to its flat, widely spaced keys, which feel a bit spongy. It’s also spill-proof, which should come as a relief to anyone who tends to eat at the computer.
Despite having a small hard disk, the ThinkCentre 91z 7075D2G is a good choice if you want a powerful and fairly versatile all-in-one PC. We still prefer the extra power you get – admittedly for more money – from the Asus ET2410INTS, but the 91z is worth buying if you want a decent processor but don’t need much by way of graphical power or storage.
