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LG Gram 14 review: This thin, light 2-in-1 boasts exceptional battery life

The LG Gram 14-inch laptop we tested may not be the fastest we’ve seen, but with its Intel Core i7 Comet Lake CPU, it offers solid mainstream performance in a durable 2-in-1 design. It also boasts a bright full-HD display with impressive viewing angles.

The Gram really comes into its own in the battery life department, making it a great choice for productivity-minded professionals who don’t want to be tied down by an AC adapter. You’ll see us compare it to two other convertibles we’ve reviewed recently—the budget-friendly Lenovo Yoga C740 (currently $790 on Lenovo.com) and the similarly priced Lenovo Yoga C940 14 (currently $1,430 from Microsoft.com). Both those competitors earned high ratings from us (as does the LG Gram) and are well worth considering, but the Gram beats them both on battery life. 

This review is part of our ongoing roundup of the best laptops. Go there for information on competing products and how we tested them. 


LG sells two versions of its latest 14-inch 2-in-1 Gram. First, there’s the model that we’re reviewing here (14T90N-R.AAS8U1), which is $1,400 as a Costco exclusive with a 10th-gen Core i7 Comet Lake processor, integrated Intel UHD graphics, a 512GB solid-state drive, and 16GB of RAM. The second model (14T90N-R.AAS9U1) is identical save for a larger 1TB SSD and a $1,600 price tag. LG also offers a pair of 15-inch Gram models with stepped-up Ice Lake CPUs starting at $1,300, but the 15-inch versions are conventional clamshell laptops, not 2-in-1 designs.

Let’s take a closer look at the specs for our review unit:

  • CPU: Quad-core 10th-gen Intel Core i7-10510U
  • Memory: 16GB DDR4
  • Graphics: Integrated Intel UHD Graphics
  • Storage: 512GB SSD
  • Display: 1920×1080 IPS touchscreen
  • Wireless networking: Wi-Fi 6
  • Battery capacity: 72 watt-hour
  • Dimensions: 12.8 x 8.3 x 0.7 inches
  • Weight: 2.46 pounds

There are a few key specs worth calling out here, starting with the CPU. The Core i7-10510U is a 10th-gen Comet Lake Intel CPU, but it represents only a modest bump over older 8th-gen Whiskey Lake chips such as the Core i7-8565U. The Core i7-10510U is built on the same 14nm architecture as its 8th-gen predecessors, rather than the 10nm process of Intel’s latest and greatest Ice Lake CPUs. It also hits the same base clock and only a slightly higher boost clock than its 8th-gen ancestors (4.9GHz, versus 4.6GHz for the Core i7-8565U).

To say that the Core i7-10510U is roughly equivalent to its 8th-gen counterpart isn’t a knock, however: The older chip was (and is) a dependable workhorse when it comes to daily computing tasks as well as CPU-intensive chores. We expect no less from this Comet Lake processor.

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