![]() The 65W USB Type-C AC adapter is one of the smallest and lightest we’ve ever seen, as illustrated in figure 4. In addition to reduced power consumption, the ThinkStation P52s also benefits from a very compact power supply. The Nvidia Quadro P500 (2GB) GPU offers similar savings with an 18W TDP compared to the respective 40W and 50W of the Quadro P1000 and Quadro P2000. This is one third of what you’d find in a typical mobile workstation, although power consumption can go a bit higher at peak loads. The Intel Core i7-8650U CPU is a very low power quad core processor, with a thermal design power (TDP) of 15W. Lenovo has also chosen the CPU and GPU very carefully to minimize power usage. Packing out the machine with multiple cells is not the only way the ThinkPad P52s achieves such good battery life. The good news is you can pick and choose your batteries, depending on your power needs as spares only cost about £70. The downside of the 6-cell (72Wh) external battery is its size, which makes it protrude from the machine. This might not be the top spec, but it still managed to last an impressive 235mins in the demanding PCMark OpenCL media battery test which continually hammers both CPU and GPU. ![]() Our test machine came with a front 4-cell (32Wh) and a rear 3-cell (24Wh) battery. The machine will keep running on the integrated battery. Simply shut the lid, flip the switch and pull it out. You can even ‘hot swap’ the external battery without having to power down. In contrast, most other mobile workstations only have a single battery that is completely built in.Īs the rear battery can be easily swapped out, battery life can be extended even further by carrying a spare in your laptop bag. The laptop achieves this, not through one but two Li-Ion batteries: an integrated front 4-cell (32Wh) battery, as well as a removeable rear battery which comes in a choice of three different capacities – 3-cell (24Wh), 6-cell (48Wh), or 6-cell (72Wh). Its latest model, the ThinkPad P52s, should run all day long without having to plug into the mains, even when running 3D CAD. Lenovo chose a different tack for its slimline 15-inch mobile workstation, making battery life the number one priority. HP then followed suit in 2015 with the similarly specced HP ZBook Studio. ![]() The stylish laptop was thinner and lighter than anything that had come before but it still delivered the goods for 3D CAD thanks to its mid-range Nvidia Quadro GPU. The ThinkPad P52s has a 15.6-inch display and a backlit keyboard with numeric keypadĭell transformed the 15-inch mobile workstation in 2013 with the launch of the Precision M3800.
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