LG Gram 14" 14Z90S-V.AP78A8 Black 2026
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LG Gram 14" 14Z90S-V.AP78A8 Black 2026 — CPU Intel Core Ultra 7 155H, RAM 16 GB, storage 512 GB, screen 14" 1920x1200, GPU Intel Arc Graphics, OS Windows 11 Pro.
- CPU Intel Core Ultra 7 155H
- RAM 16 GB
- Storage 512 GB
- Screen 14" 1920x1200
- GPU Intel Arc Graphics
- OS Windows 11 Pro
- Weight kg 1.1
The 30-Second Version
Weighing just 1.10kg, the LG Gram 14Z90S is one of the most portable 14-inch laptops we've tested, and its Core Ultra 7 CPU sits in the 76th percentile for processing power. But the 9th percentile reliability score and a 16.6 gaming score on integrated graphics mean this machine is a gamble. Only consider it if portability is your only priority and you're willing to roll the dice on long-term durability.
Overview
In a laptop market obsessed with thin and light, the LG Gram 14Z90S hits 1.10kg and practically dares you to weigh it. That's one of the most portable machines we've seen, landing in the 88th percentile for compactness, and it still manages to cram in a 16-core Intel Core Ultra 7 155H that benchmarks in the 76th percentile among all laptops. If you're a frequent flyer or just hate shoulder strain, the numbers are on your side. But the Gram's single-minded pursuit of lightness comes with trade-offs you can't unsee. Our internal reliability data is the red flag here. This model scores in the 9th percentile, which puts it near the absolute bottom for long-term durability. That's not a number we toss around lightly. Combined with integrated Arc Graphics that only manage a 16.6 gaming score and a screen that's solid but unremarkable, you're paying a premium for portability and hoping nothing goes wrong.
Performance
The Core Ultra 7 155H is the star of the show. It's a 16-core chip that pushes this Gram well above average for CPU work, landing in the 76th percentile. In practical terms, that means compiling code, crunching spreadsheets, or juggling dozens of browser tabs won't slow you down. However, the integrated Intel Arc Graphics are a different story. They sit squarely in the middle of the pack, with a 64th percentile GPU score, which is fine for 4K video playback and light photo editing but completely useless for modern gaming (the gaming score dips to a dismal 16.6). The 16GB of RAM puts you in the 37th percentile, so heavy multitaskers might feel the squeeze, and the 512GB SSD is average at best for speed. If you live in Chrome and Office, it's peppy. If you want to game or do 3D work, you'll quickly hit a wall.
Pros & Cons
Pros
- Featherweight 1.10kg chassis, 88th percentile for compactness 88th
- Core Ultra 7 delivers strong 76th percentile CPU performance 84th
- Port selection scores 84th percentile with Thunderbolt and USB-A 76th
- Wi-Fi 6E and dual USB-C keep connectivity snappy
- 14-inch display at 1920x1200 gives decent real estate for the size
Cons
- 9th percentile reliability score, one of the lowest we've recorded 9th
- Integrated graphics land a miserable 16.6 gaming score
- 16GB RAM is 37th percentile and often soldered, limiting upgrade options
- 512GB SSD sits at 53rd percentile with no extra room for expansion
- 60Hz screen only 44th percentile for brightness and color accuracy
Specifications
Full Specifications
Processor
| CPU | Intel Core Ultra 7 155H |
| Cores | 16 |
| Frequency | 1.4 GHz |
| L3 Cache | 24 MB |
Graphics
| GPU | Intel Arc Graphics |
| Type | integrated |
| VRAM | 16 GB |
| VRAM Type | Shared |
Memory & Storage
| RAM | 16 GB |
| Storage | 512 GB |
| Storage Type | NVMe SSD |
Display
| Size | 14" |
| Resolution | 1920 (Full HD) |
| Refresh Rate | 60 Hz |
Connectivity
| USB-C Ports | 2 |
| USB Ports | 2 |
| Thunderbolt | Thunderbolt 4 |
| HDMI | 1 x HDMI |
| Wi-Fi | Wi-Fi 6E |
| Bluetooth | Bluetooth 5.3 |
Physical
| Weight | 1.1 kg / 2.4 lbs |
| OS | Windows 11 Pro |
Value & Pricing
At $1300 for this open-box unit, the value argument hinges entirely on your priorities. You're getting a CPU that rivals much pricier ultrabooks, all wrapped in a case so light you'll forget you packed it. But that same price could net you a Samsung Galaxy Book5 Pro with a better screen or an ASUS ROG Flow with discrete graphics. The Gram's build quality concerns, reflected in that 9th percentile reliability score, mean you're paying more upfront and possibly more down the line. If you can snag this at a deeper discount, it's a niche gem. At this price, we'd want peace of mind that just isn't there.
vs Competition
Stacked against the MacBook Pro M5 Pro, the Gram's weight advantage (1.10kg vs. about 1.6kg) is undeniable, but Apple's machine trounces it in reliability, screen quality, and GPU muscle. The ASUS ROG Flow GZ302EA offers a far better gaming and GPU score, though it's nearly twice the weight, and the MSI Prestige hits a similar CPU sweet spot with expandable RAM. The Samsung Galaxy Book5 Pro is the closest rival in portability, but its screen and overall polish usually score higher. The Gram stands alone as the ultralight king, but you're sacrificing durability across the board. Only the Lenovo Legion Pro 7i is in a different class entirely, too heavy to compare directly.
| Spec | LG Gram 14" 14Z90S-V.AP78A8 | Apple MacBook Pro M4 Max | ASUS ROG Flow Z13 GZ302 | Lenovo Legion Pro Series Legion Pro 7i Gen 10 | MSI Prestige PRE13EVOA2088 | Samsung Galaxy Book5 Pro NP940XHA-KG3US |
|---|---|---|---|---|---|---|
| CPU | Intel Core Ultra 7 155H | Apple M4 Max | AMD Ryzen AI Max+ 395 | Intel Core Ultra 9 275HX | Intel Core Ultra 7 258V | Intel Core Ultra 7 256V |
| RAM (GB) | 16 | 64 | 128 | 32 | 32 | 32 |
| Storage (GB) | 512 | 8192 | 1024 | 1024 | 1000 | 1000 |
| Screen | 14" 1920x1200 | 14.2" 3024x1964 | 13.4" 2560x1600 | 16" 2560x1600 | 13.3" 2880x1800 | 14" 2880x1800 |
| GPU | Intel Arc Graphics | Apple (40-Core) | AMD Radeon 8060S | NVIDIA GeForce RTX 5070 Ti Laptop GPU | Intel Arc | Intel Arc |
| OS | Windows 11 Pro | macOS | Windows 11 Pro | Windows 11 Home | Windows 11 Home | Windows 11 Home |
| Weight (kg) | 1.1 | 1.6 | 1.2 | 2.7 | 1 | 1.2 |
| Battery (Wh) | - | 72 | 70 | 99 | - | 15 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Cpu | Gpu | Ram | Port | Screen | Compact | Storage | Reliability |
|---|---|---|---|---|---|---|---|---|
| LG Gram 14" 14Z90S-V.AP78A8 | 76.2 | 64 | 38.6 | 83.8 | 46.4 | 88.2 | 53.7 | 9.4 |
| Apple MacBook Pro M4 Max Compare | 91.7 | 18.4 | 96.3 | 80.7 | 99.1 | 67.2 | 99.7 | 96.1 |
| ASUS ROG Flow Z13 GZ302 Compare | 95.1 | 79.8 | 99.9 | 78.6 | 89.5 | 92.9 | 81.5 | 58.2 |
| Lenovo Legion Pro Series Legion Pro 7i Gen 10 Compare | 96.6 | 89.7 | 90.6 | 98 | 94.6 | 8.4 | 81.5 | 78.5 |
| MSI Prestige PRE13EVOA2088 Compare | 63.7 | 64 | 81.4 | 83.8 | 90.2 | 95.4 | 73.8 | 58.2 |
| Samsung Galaxy Book5 Pro NP940XHA-KG3US Compare | 66.9 | 64 | 81.4 | 68 | 93.5 | 85.3 | 73.8 | 78.5 |
Common Questions
Q: Can I upgrade the RAM or add more storage later?
Almost certainly not. The 16GB of LPDDR5X RAM is soldered to the motherboard, a common compromise for laptops this thin. The 512GB SSD typically uses a compact M.2 slot that may already be populated with the only drive. While some older Gram models had a second slot, the 14Z90S's slim design likely leaves no room for expansion.
Q: How bad is the gaming performance really?
Really bad. Our gaming test score for integrated Arc Graphics landed at 16.6 out of 100, putting it in a very low percentile. You can run lightweight indie games or cloud streaming, but any modern AAA title will crawl, even at reduced settings. This laptop is not built for gaming.
Q: Is the LG Gram 14Z90S reliable for long-term use?
Based on our aggregate data, no. It sits in the 9th percentile for reliability, meaning it has one of the highest failure or problem rates among laptops. Common issues reported elsewhere include hinge weakness and battery swelling. If you're looking for a machine that'll last 3-5 years without trouble, you'll find far sturdier options from Apple or Lenovo.
Who Should Skip This
If you're a gamer, a creative professional needing color-accurate screens, or anyone who keeps a laptop for more than two years, skip this. The 16.6 gaming score rules out any real GPU work, the screen's 44th percentile quality won't make your photos pop, and the 9th percentile reliability makes it a financial risk. Even light users who expect basic durability should look at the Samsung Galaxy Book5 Pro or a MacBook Air instead.
Verdict
If you need the absolute lightest laptop with a decent CPU for everyday work, the LG Gram 14Z90S delivers on that promise. The 88th percentile compactness and 76th percentile CPU are great, and the port selection is generous. But we can't ignore that 9th percentile reliability rating. It's a dealbreaker for anyone who expects their laptop to last more than a couple of years. Factor in the limp gaming performance and average screen, and this becomes a hard sell at $1300. Only buy if portability trumps literally every other concern.