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2026 comparison
Updated Jan 6, 2026
|Sources: Amazon, ManufacturerASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) vs Dell Inspiron 15 3520 — Intel Core i5-1235U
If you're gaming or doing heavy multitasking, the ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) is the premium choice here. Its powerful RTX 4050 GPU delivers a whopping 140W TGP, ensuring you get top-notch performance for demanding games. The Dell Inspiron 15 3520 — Intel Core i5-1235U is a budget-friendly option, perfect for everyday tasks and light gaming.
⚡ Refresh: 144 Hz vs 120 Hz⚖️ Weight: 77.60 oz vs 58.55 oz💽 Storage: 1024 GB vs 512 GB
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ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
★4.3
(66)•Amazon
Processor:AMD Ryzen 7 7735HS (Zen 3+, 8 cores, up to 4.75 GHz)
Graphics:NVIDIA GeForce RTX 4050 Laptop GPU (6GB GDDR6, 140W TGP max)
AI Engine:No (Not supported on Ryzen 7 7735HS)
Cooling:Dual Arc Flow Fans (84-blade) with 4 exhaust vents
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Dell Inspiron 15 3520 — Intel Core i5-1235U
★4.5
(2,701)•Best Buy
Processor:Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz)
Graphics:Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD)
AI Engine:No (Not supported)
Cooling:Air (Single fan)
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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
Dell Inspiron 15 3520 — Intel Core i5-1235U
Display1 specs
Refresh Rate
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
144 Hz (G-SYNC supported)Winner
Dell Inspiron 15 3520 — Intel Core i5-1235U
120 Hz
Performance2 specs
RAMKey
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
16 GB DDR5-4800 (2x 8GB SO-DIMM)
Dell Inspiron 15 3520 — Intel Core i5-1235U
8 GB or 16 GB DDR4-2666/3200 MHz
Storage
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
1 TB PCIe 4.0 NVMe SSDWinner
Dell Inspiron 15 3520 — Intel Core i5-1235U
512 GB PCIe NVMe M.2 SSD
Battery1 specs
Battery CapacityKey
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
90 Wh (4-cell Li-ion)
Dell Inspiron 15 3520 — Intel Core i5-1235U
41 Wh (3-cell Li-ion) or 54 Wh (4-cell; config dependent)
Design1 specs
Weight
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
2,200 g (4.85 lbs)
Dell Inspiron 15 3520 — Intel Core i5-1235U
1,660 g (3.65 lbs)Winner
Connectivity1 specs
Connectivity
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.3; Gigabit Ethernet (RJ45)
Dell Inspiron 15 3520 — Intel Core i5-1235U
Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1
+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: ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) vs Dell Inspiron 15 3520 — Intel Core i5-1235U
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
★4.3(66)Amazon
Dell Inspiron 15 3520 — Intel Core i5-1235U
★4.5(2,701)Best Buy
| Criterion | ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) | Dell Inspiron 15 3520 — Intel Core i5-1235U |
|---|---|---|
| Rating | ★4.3(66)Amazon | ★4.5(2,701)Best Buy |
Processor | AMD Ryzen 7 7735HS (Zen 3+, 8 cores, up to 4.75 GHz) | Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz) |
Graphics | NVIDIA GeForce RTX 4050 Laptop GPU (6GB GDDR6, 140W TGP max) | Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD) |
AI Engine | No (Not supported on Ryzen 7 7735HS) | No (Not supported) |
Cooling | Dual Arc Flow Fans (84-blade) with 4 exhaust vents | Air (Single fan) |
RAM | 16 GB DDR5-4800 (2x 8GB SO-DIMM) | 8 GB or 16 GB DDR4-2666/3200 MHz |
RAM Upgrade | Yes (2x DDR5 SO-DIMM slots, up to 32 GB) | Yes (2x SODIMM slots, up to 16 GB officially, 32 GB unofficially) |
Storage | 1 TB PCIe 4.0 NVMe SSD | 512 GB PCIe NVMe M.2 SSD |
Storage Upgrade | Yes (2x M.2 PCIe Gen 4 slots) | Yes (1x M.2 2230/2280 slot) |
Display Size | 15.6" | 15.6" |
Resolution | 1920 x 1080 (FHD) | 1920 x 1080 (FHD) |
Aspect Ratio | 16:9 | 16:9 |
Screen Type | IPS-level (Anti-glare) | IPS (Anti-glare; Wide Viewing Angle) |
Refresh Rate | 144 Hz (G-SYNC supported) | 120 Hz |
Brightness | 250 nits (Typical) | 250 nits (Typical) |
Color Gamut | 100% sRGB | 45% NTSC (approx. 60% sRGB) |
Keyboard Layout | US English (ANSI) with NumPad | US English (ANSI) with NumPad |
Keyboard Backlight | Yes (1-zone RGB Mini-LED) | No (Optional/Configuration dependent; mostly No on retail units) |
Biometrics | No (Not supported) | No (Fingerprint reader is optional/configuration dependent) |
Webcam | 720p HD camera | 720p HD camera |
USB Ports | 1x USB 4 Type-C (DisplayPort); 1x USB 3.2 Gen 2 Type-C (DisplayPort/PD/G-SYNC); 2x USB 3.2 Gen 1 Type-A | 2x USB-A 3.2 Gen 1; 1x USB-A 2.0; (Note: USB-C is often ABSENT on i5-1235U US retail units) |
Video Ports | 1x HDMI 2.1 FRL | 1x HDMI 1.4 (Supports up to 1920x1080 @ 60Hz) |
Audio Ports | 1x 3.5mm Combo Audio Jack | 1x 3.5mm Headphone/Mic combo jack |
Connectivity | Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.3; Gigabit Ethernet (RJ45) | Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1 |
Battery | 90 Wh (4-cell Li-ion) | 41 Wh (3-cell Li-ion) or 54 Wh (4-cell; config dependent) |
Charger | 240 W AC adapter | 65 W Barrel-pin AC adapter (4.5mm) |
Weight | 2,200 g (4.85 lbs) | 1,660 g (3.65 lbs) |
Build Material | Plastic chassis with Aluminum lid (Mecha Gray) | Plastic (Carbon Black) |
Operating System | Windows 11 Home | Windows 11 Home |
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ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
Rating:★4.3(66)Amazon
Processor:AMD Ryzen 7 7735HS (Zen 3+, 8 cores, up to 4.75 GHz)
Graphics:NVIDIA GeForce RTX 4050 Laptop GPU (6GB GDDR6, 140W TGP max)
AI Engine:No (Not supported on Ryzen 7 7735HS)
Cooling:Dual Arc Flow Fans (84-blade) with 4 exhaust vents
RAM:16 GB DDR5-4800 (2x 8GB SO-DIMM)
RAM Upgrade:Yes (2x DDR5 SO-DIMM slots, up to 32 GB)
Storage:1 TB PCIe 4.0 NVMe SSD
Storage Upgrade:Yes (2x M.2 PCIe Gen 4 slots)
Display Size:15.6"
Resolution:1920 x 1080 (FHD)
Aspect Ratio:16:9
Screen Type:IPS-level (Anti-glare)
Refresh Rate:144 Hz (G-SYNC supported)
Brightness:250 nits (Typical)
Color Gamut:100% sRGB
Keyboard Layout:US English (ANSI) with NumPad
Keyboard Backlight:Yes (1-zone RGB Mini-LED)
Biometrics:No (Not supported)
Webcam:720p HD camera
USB Ports:1x USB 4 Type-C (DisplayPort); 1x USB 3.2 Gen 2 Type-C (DisplayPort/PD/G-SYNC); 2x USB 3.2 Gen 1 Type-A
Video Ports:1x HDMI 2.1 FRL
Audio Ports:1x 3.5mm Combo Audio Jack
Connectivity:Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.3; Gigabit Ethernet (RJ45)
Battery:90 Wh (4-cell Li-ion)
Charger:240 W AC adapter
Weight:2,200 g (4.85 lbs)
Build Material:Plastic chassis with Aluminum lid (Mecha Gray)
Operating System:Windows 11 Home
✓ Pros:
- • Large 90Wh battery provides excellent endurance for a gaming laptop
- • GPU runs at full 140W TGP for maximum RTX 4050 performance
- • Comprehensive connectivity including USB 4 and HDMI 2.1
- • 100% sRGB color coverage (significant upgrade over older TUF 144Hz panels)
- • Military-grade durability (MIL-STD-810H) with robust cooling
✗ Cons:
- • Screen brightness is limited to 250 nits, making outdoor use difficult
- • Fans can become quite loud under turbo loads
- • No biometric security (fingerprint or face unlock)
- • 720p webcam is average quality
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Dell Inspiron 15 3520 — Intel Core i5-1235U
Rating:★4.5(2,701)Best Buy
Processor:Intel Core i5-1235U (Alder Lake-U, 10 cores, up to 4.4 GHz)
Graphics:Intel Iris Xe Graphics (Integrated; requires dual-channel RAM, otherwise UHD)
AI Engine:No (Not supported)
Cooling:Air (Single fan)
RAM:8 GB or 16 GB DDR4-2666/3200 MHz
RAM Upgrade:Yes (2x SODIMM slots, up to 16 GB officially, 32 GB unofficially)
Storage:512 GB PCIe NVMe M.2 SSD
Storage Upgrade:Yes (1x M.2 2230/2280 slot)
Display Size:15.6"
Resolution:1920 x 1080 (FHD)
Aspect Ratio:16:9
Screen Type:IPS (Anti-glare; Wide Viewing Angle)
Refresh Rate:120 Hz
Brightness:250 nits (Typical)
Color Gamut:45% NTSC (approx. 60% sRGB)
Keyboard Layout:US English (ANSI) with NumPad
Keyboard Backlight:No (Optional/Configuration dependent; mostly No on retail units)
Biometrics:No (Fingerprint reader is optional/configuration dependent)
Webcam:720p HD camera
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)
Video Ports:1x HDMI 1.4 (Supports up to 1920x1080 @ 60Hz)
Audio Ports:1x 3.5mm Headphone/Mic combo jack
Connectivity:Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1
Battery:41 Wh (3-cell Li-ion) or 54 Wh (4-cell; config dependent)
Charger:65 W Barrel-pin AC adapter (4.5mm)
Weight:1,660 g (3.65 lbs)
Build Material:Plastic (Carbon Black)
Operating System:Windows 11 Home
✓ 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
- • Includes a full-size SD card slot (rare in modern laptops)
- • Decent port selection with three USB-A ports and HDMI
- • Lift hinge design improves airflow and typing angle
✗ 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)
- • No keyboard backlight on many standard configurations
- • Plastic chassis feels budget-oriented and attracts fingerprints
- • Display colors are washed out (45% NTSC) and not suitable for photo editing
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Which one is better?
Grab the Dell if you need a lighter, budget-friendly laptop for casual use - it's lighter.
Who should buy each?
Choose the ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) if: you want to game at high settings, need serious multitasking power, or want a larger storage capacity. (144 Hz refresh, 77.60 oz weight)
Choose the Dell Inspiron 15 3520 — Intel Core i5-1235U if: you need a lightweight laptop for basic tasks, want a budget-friendly option, or prefer a device for web browsing and streaming. (120 Hz refresh, 58.55 oz weight)
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) excels if you value large 90wh battery provides excellent endurance for a gaming laptop. Dell Inspiron 15 3520 — Intel Core i5-1235U is better if you prioritize 120hz refresh rate provides smoother scrolling than typical 60hz budget laptops. Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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