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Obsidian Black 15.6 inch LG Gram laptop closed lid

LG Electronics

LG Electronics 15Z90S-V.APB5U1 laptop Core Ultra 7 155H 16 GB 512 GB

SKU CH-KMHP-GPV9N MPN 15Z90S-V.APB5U1

A 15.6" FHD IPS notebook with Core Ultra 7 155H, 16 GB DDR5, 512 GB SSD, Arc graphics and 72 Wh battery

  • Screen size15.6 in (39.6 cm)
  • ProcessorIntel Core Ultra 7 (Series 1)
  • Graphics processorIntel Arc Graphics
  • Memory size16 GB
  • SSD storage512 GB
  • Display resolution1920 × 1080
  • Lightweight 2.8 lbs design for easy mobility
  • Intel Core Ultra 7 155H up to 4.80 GHz for responsive performance
  • 16 GB DDR5 6400 memory for smooth multitasking
  • 512 GB SSD storage for fast file access
  • Thunderbolt 4 USB-C enables versatile connectivity

Lightweight 15.6-inch notebook for mobile

The LG Gram 15Z90S-V weighs 2.8 lbs and runs Windows 11 Pro on an Intel Core Ultra 7 155H processor with 16 GB of DDR5 6400 memory and a 512 GB SSD. Its 15.6-inch FHD IPS panel delivers a 1920 x 1080 resolution at 60 Hz. Integrated Intel Arc graphics handle everyday visual tasks without a discrete card.

Thunderbolt 4 and 72 Wh battery extend work sessions

Two USB Type-C ports support Thunderbolt 4 and Power Delivery so you can charge the 72 Wh battery or drive external displays from a single cable. IEEE 802.11ax wireless keeps the connection stable in busy offices. The Obsidian Black chassis includes a webcam for video calls.

16 GB soldered DDR5 6400 cannot be upgraded

Memory is fixed at 16 GB with no expansion slots, so buyers who need more RAM for heavy multitasking or virtual machines should choose a different model. The 512 GB SSD provides the only internal storage.

How it compares

Measured against everything we stock in Standard Laptops & Notebooks, at today’s prices. Recalculated every night.

Price $1,581.99
Pricier than about 86% of the 32,549 comparable items (median $599.99).
Screen size 15.6 in (39.6 cm)
Higher than about 60% of the 32,085 comparable items (median 15.2 in).
Refresh frequency 60 Hz
Typical for this category: the median of 1,749 items is 60 Hz.

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Specifications

Product
Brand nameLG
Product lineGram
Model name15Z90S-V
Part number15Z90S-V.APB5U1
Product colorObsidian Black
Product typeHome / Personal
Processor
ProcessorIntel Core Ultra 7 (Series 1)
Processor modelIntel Core Ultra 7 155H
Turbo clock speed4.8 GHz
Memory
Memory size16 GB
RAM type and speedDDR5 6400
Storage
SSD storage512 GB
Display
Screen size15.6 in (39.6 cm)
Display resolution1920 × 1080
Refresh frequency60 Hz
Panel typeIPS
Touch inputNon-Touch Screen
Display formatFHD
Graphics
Graphics processorIntel Arc Graphics
Graphics typeIntegrated Card
Audio & video
Web cameraYes
Connectivity
Wi-Fi standardWi-Fi 6E
Wi-Fi802.11ax Wireless LAN
Bluetooth supportYes
Ports & slots
HDMI ports1 x HDMI
Power
Battery packChemistry:
Lithium Ion (Li-Ion)
Battery Energy:
72 Wh
Size & build
Overall dimensionsHeight:
8.8 in
Width:
14 in
Depth:
0.7 in
Product weight2.84 lb (1.29 kg)
Shipping weight2.22 kg
Package size503 × 315 × 66 mm
In the box
Included itemsGram 15Z90S-V.APB5U1 Notebook
Lithium Ion Battery
AC Adapter
2 pole with external C to C 1.8m/3A cable White/Black (Wall-mount 'I' type for US/CA/JP/TW)
Software
Operating systemWindows 11 Pro

Questions about this item

Can the 16 GB DDR5 6400 memory be upgraded or replaced later?

The 16 GB DDR5 6400 memory is soldered and cannot be upgraded or replaced.

What limits sustained performance of the Core Ultra 7 155H and Intel Arc graphics?

The 72 Wh battery and lightweight thermal design throttle the CPU and integrated Arc graphics under prolonged loads.

How loud and hot does the laptop get when running all day on the 72 Wh battery?

Fan noise stays low at idle but rises noticeably under load; surface temperatures climb around the keyboard deck during extended use.

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