[Specs, Info, and Prices] LG gram SuperSlim 15 (15Z90RT, 2023) – How does it get slimmer every time?

LG’s Gram laptops are the pinnacle of lightweight and quality, and today’s Gram SuperSlim 15 goes further, offering a 15.6-inch device with a P-series processor inside a very slim, almost eye-watering chassis. However, LG still advertises its creative capabilities for design and video editing, and we know how the P-series can be an excellent companion for both, so we’re really wondering how the SuperSlim 15 might be able to pull that off, as cooling-wise, you’d still need a semi-decent setup if you want to extract good clocks and low temps from the Core i7-1360P.

Today we are giving you a quick overview of the LG gram SuperSlim 15 (15Z90RT, 2023).

The LG gram SuperSlim 15 (15Z90RT, 2023) is available now with a starting price of $1,699.99.

LG gram SuperSlim 15 (15Z90RT, 2023): Full Specs


Being the thinnest LG laptop ever, the SuperSlim 15 certainly has to bring its A-game when it comes to design and durability. With a profile of only 12.44 mm and a weight of 0.98 kg, it’s very easy to throw in a bag and forget about. As far as the build materials are concerned, we believe that the laptop will be made of metal, but we can’t exactly be sure. What we’re sure about is the military standard certification, as the laptop has passed 7 of the tests, including low and high pressure, extreme temperatures, vibrations, and shocks.



The port selection of the gram includes one USB Type-C 4.0 port with Power Delivery, two Thunderbolt 4 ports with both Power Delivery and DisplayPort support, as well as a 3.5 mm audio jack.


The laptop comes with a 15.6-inch Full HD OLED panel, which is a fine resolution for this display size. The panel supports DisplayHDR 500 while having around 500 nits of peak brightness, so you get exceptional colors and very dark blacks. Colors also appear true to life, thanks to the 100% DCI-P3 coverage. With a tune-up to the accuracy, you can do a fair bit of color grading and image editing.

Specifications and features

The laptop is powered by the Core i7-1360P, which has 12 cores and 16 threads. As it’s part of the Raptor Lake P-series, it runs at a base TDP of 28W, so the laptop is able to have “a bit” more performance than your regular ultra-light machine. The Core i7 comes with the Iris Xe Graphics G7 integrated graphics, which has 96 Execution Units. The laptop comes with up to 32GB of very fast LPDDR5 memory that runs at 6000MHz. As for storage, you’re working with the quickest Gen 4 SSDs, which means that all apps load very quickly.

LG gram SuperSlim 15 (15Z90RT, 2023) series

  • Dimensions
  • 355.6 x 227.33 x 10.92 - 12.44 mm (14.00" x 8.95" x 0.43")
  • Weight
  • 0.98 kg (2.2 lbs)
  • Price
  • Starting at $1589.97

All LG gram SuperSlim 15 (15Z90RT, 2023) configurations:

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