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LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD — main product image
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD
LG

LG 15Z90N-R.AAS7U1 Gram 15.6-Inch i7 Laptop 8GB 256GB SSD

★★★★★3.9 (57 reviews)
1920 x 1080i7-1065G78GB DDR4256GB SSD

The LG gram 15Z90N delivers a 10th Gen Core i7 and 17-hour battery in a chassis that weighs under 1.1 kg — redefining what a 15-inch laptop can weigh.

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Overview

The LG gram 15Z90N is an engineering exercise in weight reduction: a 15.6-inch laptop with a Full HD IPS display, 10th Gen Core i7 processor, and 80 WHr battery that comes in under 1.1 kg. That mass figure is achieved through LG's MIL-SPEC 810G chassis construction — a magnesium-aluminum alloy frame that passes military durability tests while subtracting material and therefore weight at every junction. The i7-1065G7 is Intel's 10nm Ice Lake architecture, delivering meaningful integrated GPU improvements over the previous generation through Intel Iris Plus graphics — sufficient for 4K video playback, dual external display output via Thunderbolt 3, and light Lightroom edits. The 256GB M.2 NVMe SSD runs at full PCIe 3.0 speeds; the constraint is capacity, not throughput. The 80 WHr battery is unusually large for a 15-inch chassis and is the primary enabler of the gram's standout endurance figure.

The gram 15Z90N is built for the professional who travels frequently and values the ability to work untethered for a full day on a large, comfortable screen. Consultants, executives, academics, and field workers who find 13-inch displays fatiguing but refuse to carry 2kg of laptop will find the gram's weight profile genuinely freeing. The Thunderbolt 3 port enables a full docking station setup at a desk — single-cable connectivity to external displays, wired Ethernet, and peripherals — making it equally practical as a desktop replacement. The primary constraints are fixed: 8GB soldered RAM and 256GB of base storage mean buyers should approach this machine knowing upgrades require swapping the SSD, not expanding the configuration over time.

Key Features

15 6” Full HD (1920 x 1080) IPS LCD Screen

Windows 10 Home (64 bit)

Intel 10th Generation Core i7-1065G7 CPU To Iris Plus graphics

8GB DDR4 RAM and 256 GB M 2 Nm SSD

Up to 17 hours battery (80WH Lithium Battery)

System Ram Type: Ddr4 Sdram

Specifications

Model
Gram 15Z90N-R.AAS7U1
Display Size
15.6”
Display Resolution
Full HD (1920 x 1080)
Panel Type
IPS LCD
Operating System
Windows 10 Home (64 bit)
Processor
Intel 10th Generation Core i7-1065G7
Graphics
Iris Plus graphics
RAM
8GB DDR4 RAM
Storage
256 GB M.2 NVMe SSD
Battery Life
Up to 17 hours
Battery Type
80WH Lithium Battery
System RAM Type
DDR4 SDRAM

Pros & Cons

👍 Pros

  • Sub-1.1 kg chassis weight for a 15.6-inch laptop eliminates the physical trade-off between screen size and portability — a measurable advantage over competing 15-inch business laptops that weigh 1.7–2.0 kg.
  • 80 WHr battery delivers 12–15 hours of real-world productivity runtime, enabling full workdays without carrying a charger — a capacity figure that most 13-inch ultrabooks don't match.
  • M.2 NVMe SSD in a user-accessible slot allows a straightforward capacity upgrade without replacing the entire machine.
  • 10th Gen i7-1065G7 with Intel Iris Plus graphics provides GPU acceleration for video playback, display output, and light image editing that integrated UHD 620 graphics cannot match.
  • Full HD IPS panel at 15.6 inches delivers wide viewing angles and color consistency suitable for extended reading, document review, and content consumption.

👎 Cons

  • 8GB DDR4 is soldered to the motherboard with no upgrade path — a hard ceiling that becomes a practical bottleneck running more than 15–20 Chrome tabs, a local database, or any virtualization workload.
  • 256GB NVMe storage is insufficient for users managing local media libraries, RAW photo archives, or large development environments without an immediate upgrade or external storage.
  • The i7-1065G7's 15W thermal envelope throttles under sustained multi-threaded loads in this chassis — not a design flaw, but a physics reality that users with batch processing or compile-heavy workflows will encounter.
  • Intel Iris Plus graphics shares system memory bandwidth with the CPU, compressing available RAM further and limiting GPU-accelerated workloads to light tasks.

Frequently Asked Questions

The i7-1065G7 is a 4-core, 8-thread Ice Lake processor at a 15W TDP, with a base clock of 1.3 GHz and a boost to 3.9 GHz. In a chassis this light, sustained multi-threaded loads will trigger thermal throttling sooner than in a heavier laptop with more copper and fan mass. Single-core burst performance is strong; sustained 30-minute encodes or compiles will land 20–30% below peak boost. For productivity and light creative work, the throttling boundary is rarely hit.
Yes. The gram 15Z90N uses a standard M.2 2280 NVMe slot. Replacing the SSD with a larger capacity drive (1TB or 2TB M.2 NVMe) requires opening the bottom panel — a process Lenovo and LG document in their service manuals. The 256GB shipped configuration is the primary limiting factor for users who store large media files locally.
No. The 8GB DDR4 is soldered directly to the motherboard. There are no SO-DIMM slots. This is a fixed hardware ceiling — 8GB is what you get for the life of the machine. Users who run multiple virtual machines, large browser sessions, or memory-intensive creative applications should factor this in as a hard constraint.
The combination of the i7-1065G7's 15W TDP, the gram's 1,080g chassis (minimal battery weight overhead), and Intel's Evo platform power management enables the large 80 WHr cell to sustain productivity workloads efficiently. Real-world runtime at moderate screen brightness with mixed web and office tasks typically lands at 12–15 hours — below the 17-hour spec but still among the longest runtimes available in a 15-inch laptop.
The gram 15Z90N includes a USB-C port (Thunderbolt 3 compatible on i7-1065G7 systems), a full-size HDMI port, and two USB-A 3.2 ports. Via Thunderbolt 3, it can drive a single 5K or dual 4K external displays. The HDMI port supports up to 4K/30Hz output to a single external monitor.

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