Dell Inspiron 15 3520 — Intel Core i5-1235U vs LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)
Get the LG gram 17" Laptop (17Z90S-H. ADB7U1, Core Ultra 7 155H) unless you need a budget option. The specs tell the story: 2TB of storage vs 512GB. In real-world use, that massive storage makes a big difference for creators and multitaskers alike. The Dell Inspiron 15 3520 — Intel Core i5-1235U is the budget option here, but its 120Hz refresh rate makes scrolling and gaming feel smoother compared to the LG's 60Hz. So, if smooth visuals are what you crave, that's a key point to consider in your daily use. Key specs: Display: 15.6" vs 17" and Refresh: 120 Hz vs 60 Hz.
Why compare these? The Dell Inspiron 15 3520 — Intel Core i5-1235U (budget-friendly) and LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) (high-end) represent different approaches to laptops. While they may appeal to different budgets, many buyers consider both options. This 2026 comparison helps you decide if the differences justify the price gap.
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Key Differences at a Glance
| Aspect | Dell Inspiron | LG gram |
|---|---|---|
| User Rating | 4.5★ (2,701 reviews) | 4.5★ (6 reviews) |
| Top Strength | 120Hz refresh rate provides smoother scrolling than typical 60Hz budget laptops | Incredibly lightweight (3.12 lbs) for a 17-inch laptop |
| Main Drawback | Most high-volume US retail configurations (e.g., Best Buy) LACK a USB-C port | RAM is soldered and limited to 16GB (cannot be upgraded) |
| Market Position | Budget | ✓Premium |
Dell Inspiron 15 3520 — Intel Core i5-1235U
Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz)
Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD)
No (Not supported)
Air (Single fan)
LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)
Intel Core Ultra 7 155H (Meteor Lake, 16 cores, up to 4.8 GHz)
Intel Arc Graphics (Integrated)
Intel AI Boost (Dedicated NPU)
Air (Single fan with heat pipe)
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Dell Inspiron 15 3520 — Intel Core i5-1235U vs LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)
Dell Inspiron 15 3520 — Intel Core i5-1235U
LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)
| Criterion | Dell Inspiron 15 3520 — Intel Core i5-1235U | LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) |
|---|---|---|
| Rating | ★4.5(2,701)Best Buy | ★4.5(6)Best Buy |
Processor | Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz) | Intel Core Ultra 7 155H (Meteor Lake, 16 cores, up to 4.8 GHz) |
Graphics | Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD) | Intel Arc Graphics (Integrated) |
AI Engine | No (Not supported) | Intel AI Boost (Dedicated NPU) |
Cooling | Air (Single fan) | Air (Single fan with heat pipe) |
RAM | 8 GB or 16 GB DDR4-2666/3200 MHz | 16 GB LPDDR5X (7467 MHz) |
RAM Upgrade | Yes (2x SODIMM slots, up to 16 GB officially, 32 GB unofficially) | No (Soldered) |
Storage | 512 GB PCIe NVMe M.2 SSD | 2 TB PCIe Gen4 NVMe SSD (Configured as 2x 1TB drives) |
Storage Upgrade | Yes (1x M.2 2230/2280 slot) | Yes (2x M.2 2280 slots; both occupied in this configuration) |
Display Size | 15.6" | 17" |
Resolution | 1920 x 1080 (FHD) | 2560 x 1600 (WQXGA) |
Aspect Ratio | 16:9 | 16:10 |
Screen Type | IPS (Anti-glare; Wide Viewing Angle) | IPS (Touchscreen; Anti-glare) |
Refresh Rate | 120 Hz | 60 Hz |
Brightness | 250 nits (Typical) | 350 nits (Typical) |
Color Gamut | 45% NTSC (approx. 60% sRGB) | 99% DCI-P3 |
Keyboard Layout | US English (ANSI) with NumPad | US English (ANSI) with NumPad |
Keyboard Backlight | No (Optional/Configuration dependent; mostly No on retail units) | Yes |
Biometrics | No (Fingerprint reader is optional/configuration dependent) | IR Face Recognition (Windows Hello) |
Webcam | 720p HD camera | 1080p FHD IR webcam with dual microphones |
USB Ports | 2x USB-A 3.2 Gen 1; 1x USB-A 2.0; (Note: USB-C is often ABSENT on i5-1235U US retail units) | 2x Thunderbolt 4 (USB-C; Power Delivery; DisplayPort); 2x USB-A 3.2 Gen 2 |
Video Ports | 1x HDMI 1.4 (Supports up to 1920x1080 @ 60Hz) | 1x HDMI 2.1 |
Audio Ports | 1x 3.5mm Headphone/Mic combo jack | 1x 3.5mm Headphone/Mic combo jack |
Connectivity | Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1 | Wi-Fi 6E (802.11ax 2x2); Bluetooth 5.3 |
Battery | 41 Wh (3-cell Li-ion) or 54 Wh (4-cell; config dependent) | 77 Wh (Li-Ion) |
Charger | 65 W Barrel-pin AC adapter (4.5mm) | 65 W USB-C adapter |
Weight | 1,660 g (3.65 lbs) | 1,415 g (3.12 lbs) |
Build Material | Plastic (Carbon Black) | Magnesium Alloy |
Operating System | Windows 11 Home | Windows 11 Home |
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Dell Inspiron 15 3520 — Intel Core i5-1235U
Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz)
Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD)
No (Not supported)
Air (Single fan)
8 GB or 16 GB DDR4-2666/3200 MHz
Yes (2x SODIMM slots, up to 16 GB officially, 32 GB unofficially)
Pros
- 120Hz refresh rate provides smoother scrolling than typical 60Hz budget laptops
- Memory (RAM) is not soldered and can be upgraded via two SODIMM slots
Cons
- Most high-volume US retail configurations (e.g., Best Buy) LACK a USB-C port
- HDMI 1.4 port cannot output 4K at 60Hz (limited to 1080p)
LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)
Intel Core Ultra 7 155H (Meteor Lake, 16 cores, up to 4.8 GHz)
Intel Arc Graphics (Integrated)
Intel AI Boost (Dedicated NPU)
Air (Single fan with heat pipe)
16 GB LPDDR5X (7467 MHz)
No (Soldered)
Pros
- Incredibly lightweight (3.12 lbs) for a 17-inch laptop
- Massive 2TB storage pre-installed (split across two 1TB drives)
Cons
- RAM is soldered and limited to 16GB (cannot be upgraded)
- Storage slots are both populated out of the box (must replace a drive to upgrade)
Which one is better?
The LG gram 17" Laptop (17Z90S-H. ADB7U1, Core Ultra 7 155H) is the better buy for most people - its 2TB storage crushes the Dell Inspiron 15 3520 — Intel Core i5-1235U's 512GB. That said, grab the Dell if you want a smoother display experience with a 120Hz refresh rate.
Who should buy each?
Choose the Dell Inspiron 15 3520 — Intel Core i5-1235U if: you want a smoother 120Hz display for gaming, need upgradeable RAM for future-proofing, or prefer a lower weight.
Choose the LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) if: you require massive storage for large files, love a lightweight design for portability, or want a higher resolution screen for content creation. (17" display, 60 Hz refresh)
Safe Choice Buyers
More widely tested with 2,701 reviews vs 6
→ Choose Dell Inspiron
Premium Buyers
Higher-tier option with more premium features and build quality
→ Choose LG gram
Value Seekers
Better value proposition for buyers who don't need top-tier features
→ Choose Dell Inspiron
120Hz refresh rate Priority
120Hz refresh rate provides smoother scrolling than typical 60Hz budget laptops
→ Choose Dell Inspiron
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Bottom line: Both products share a 4.5★ rating, making this comparison particularly close. Your decision should come down to which specific features matter most to you.
Frequently Asked Questions
+Which is better: Dell Inspiron 15 3520 — Intel Core i5-1235U or LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)?
Dell Inspiron 15 3520 — Intel Core i5-1235U is the better choice if you prioritize 120hz refresh rate provides smoother scrolling than typical 60hz budget laptops. LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) wins if you value incredibly lightweight (3.12 lbs) for a 17-inch laptop. Both are rated highly (4.5★ vs 4.5★), so consider your specific needs and budget.
+What are the main differences between Dell Inspiron 15 3520 — Intel Core i5-1235U and LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H)?
Key differences: Dell Inspiron 15 3520 — Intel Core i5-1235U offers 120hz refresh rate provides smoother scrolling than typical 60hz budget laptops, while LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) stands out with incredibly lightweight (3.12 lbs) for a 17-inch laptop. Consider that Dell Inspiron 15 3520 — Intel Core i5-1235U most high-volume us retail configurations (e.g., best buy) lack a usb-c port. Meanwhile, LG gram 17" Laptop (17Z90S-H.ADB7U1, Core Ultra 7 155H) ram is soldered and limited to 16gb (cannot be upgraded). Check the detailed specs table above for a complete comparison.
+Where can US buyers get the best price?
For US buyers, Amazon typically offers competitive pricing with Prime shipping, easy returns, and reliable warranty support. We recommend comparing prices on both products using our affiliate links above—prices fluctuate regularly, and you may find sales or deals.
+Is this comparison up to date?
Yes, this comparison is current for 2026. We regularly verify specs, ratings, and availability. Last verified: January 26, 2026. PageBen uses affiliate links for monetization, but our recommendations are research-driven and independent.
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