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Obsidian Black 15.6 inch touchscreen laptop, thin and light design

LG Electronics

LG gram 15Z90T-H.AAB4U1 15.6" Touchscreen Laptop Core Ultra 7 255H 16GB 1TB Black

SKU CH-793P-4KHJV

A 15.6-inch touchscreen laptop with Intel Core Ultra 7 processor, 16GB RAM, 1TB SSD and Intel Arc graphics weighing 2.84 lbs

  • ColorBlack
  • Operating SystemWindows 11 Home
  • CPU TypeIntel Core Ultra 7 (Series 2)
  • Screen Size15.6"
  • TouchscreenTouch Screen
  • GPU/VPUIntel Arc Graphics
  • Weighing just 2.84 lbs for effortless portability
  • 6 inch touchscreen enables direct interaction
  • Intel Core Ultra 7 255H drives demanding AI workloads
  • 16 GB memory and 1 TB SSD provide ample capacity
  • Intel Arc graphics accelerate creative applications

Ultra-thin 15.6 inch touchscreen laptop

The LG gram 15Z90T-H.AAB4U1 is a 15.6 inch touchscreen laptop weighing 2.84 lbs. It runs Windows 11 Home on an Intel Core Ultra 7 255H processor with Intel Arc graphics. The system includes 16 GB of memory in a single module and a 1 TB M.2 2242 SSD. It is built for mobile professionals who need AI-accelerated productivity in a thin-and-light chassis.

Fanless-silent thermal profile

The ultra-thin design relies on a low-power Intel Core Ultra 7 255H processor and integrated Intel Arc graphics to manage thermals without audible fan noise during typical workloads. Windows 11 Home and LG gram AI tools dynamically adjust system behaviour to balance performance and battery life. The 16 GB single-channel memory configuration and 1 TB SSD keep power draw modest for extended unplugged sessions.

Replaces heavier 15 inch clamshell notebooks

This model upgrades users moving from bulkier 15 inch laptops that lack touch input and on-device AI capabilities. The jump is worth it when daily work demands a sub-3 lb chassis, a 15.6 inch touchscreen, and hybrid AI features such as gram chat On-Device and Cloud. Buyers who need discrete graphics, user-replaceable memory, or multiple storage drives should consider other form factors.

Highlights

  • Weighing just 2.84 lbs for effortless portability
  • 6 inch touchscreen enables direct interaction
  • Intel Core Ultra 7 255H drives demanding AI workloads
  • 16 GB memory and 1 TB SSD provide ample capacity
  • Intel Arc graphics accelerate creative applications

Specifications

BrandLG
ColorBlack
Operating SystemWindows 11 Home
CPU TypeIntel Core Ultra 7 (Series 2)
Screen Size15.6"
TouchscreenTouch Screen
GPU/VPUIntel Arc Graphics
SSD1TB
Storage SpecOne drive, up to 1TB M.2 2242 SSD
Memory16GB
Memory Spec16 GB x 1
AudioHigh Definition (HD) Audio
Backlit KeyboardBacklit
Other Input DevicesYes
StyleThin and Light

Questions about this item

How do I install an additional M.2 2242 SSD in the 15.6" LG gram, and what step is often missed?

The laptop has one M.2 2242 slot occupied by the 1 TB drive; adding a second drive is not possible, so the step people miss is verifying that only a single slot exists before buying an upgrade.

What maintenance will the 16 GB memory configuration need over time?

The 16 GB memory is soldered as a single 16 GB module and cannot be upgraded or replaced, so no user maintenance is required beyond keeping the system software current.

Which limit appears first during sustained AI workloads on the Core Ultra 7 255H with Arc graphics?

The 15 W-class processor hits its thermal ceiling before the Arc GPU saturates, causing clock throttling that caps sustained AI throughput.

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