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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 Lenovo IdeaPad Flex 5 14" 2-in-1
If you're looking for a solid all-rounder, the Lenovo IdeaPad Flex 5 14" 2-in-1 is a versatile mid-range device, but it lacks the muscle for serious gaming in 2026. The key difference is in performance: the ASUS TUF's RTX 4050 crushes the integrated graphics of the Lenovo, making it the go-to for gamers.
📱 Display: 15.6" vs 14"⚡ Refresh: 144 Hz vs 60 Hz⚖️ Weight: 77.60 oz vs 54.67 oz
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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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Lenovo IdeaPad Flex 5 14" 2-in-1
★4.2
(21)•Amazon
Processor:AMD Ryzen 7 7730U (Barcelo-R, 8 cores, up to 4.5 GHz)
Graphics:AMD Radeon Graphics (Integrated)
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)
Lenovo IdeaPad Flex 5 14" 2-in-1
Display2 specs
Display SizeKey
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
15.6"Winner
Lenovo IdeaPad Flex 5 14" 2-in-1
14"
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
Lenovo IdeaPad Flex 5 14" 2-in-1
60 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)
Lenovo IdeaPad Flex 5 14" 2-in-1
16 GB LPDDR4x-4266
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
Lenovo IdeaPad Flex 5 14" 2-in-1
512 GB PCIe NVMe M.2 2242 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)
Lenovo IdeaPad Flex 5 14" 2-in-1
52.5 Wh (Polymer)
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)
Lenovo IdeaPad Flex 5 14" 2-in-1
1,550 g (3.42 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)
Lenovo IdeaPad Flex 5 14" 2-in-1
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 Lenovo IdeaPad Flex 5 14" 2-in-1
ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB)
★4.3(66)Amazon
Lenovo IdeaPad Flex 5 14" 2-in-1
★4.2(21)Amazon
| Criterion | ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop (FA507NU-DS74, Ryzen 7 7735HS/RTX 4050, 16GB/1TB) | Lenovo IdeaPad Flex 5 14" 2-in-1 |
|---|---|---|
| Rating | ★4.3(66)Amazon | ★4.2(21)Amazon |
Processor | AMD Ryzen 7 7735HS (Zen 3+, 8 cores, up to 4.75 GHz) | AMD Ryzen 7 7730U (Barcelo-R, 8 cores, up to 4.5 GHz) |
Graphics | NVIDIA GeForce RTX 4050 Laptop GPU (6GB GDDR6, 140W TGP max) | AMD Radeon Graphics (Integrated) |
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) | 16 GB LPDDR4x-4266 |
RAM Upgrade | Yes (2x DDR5 SO-DIMM slots, up to 32 GB) | No (Soldered) |
Storage | 1 TB PCIe 4.0 NVMe SSD | 512 GB PCIe NVMe M.2 2242 SSD |
Storage Upgrade | Yes (2x M.2 PCIe Gen 4 slots) | Yes (1x M.2 2242 slot; supports up to 1TB) |
Display Size | 15.6" | 14" |
Resolution | 1920 x 1080 (FHD) | 1920 x 1200 (WUXGA) |
Aspect Ratio | 16:9 | 16:10 |
Screen Type | IPS-level (Anti-glare) | IPS (Glossy; Touchscreen) |
Refresh Rate | 144 Hz (G-SYNC supported) | 60 Hz |
Brightness | 250 nits (Typical) | 300 nits |
Color Gamut | 100% sRGB | 45% NTSC (approx. 60% sRGB) |
Keyboard Layout | US English (ANSI) with NumPad | US English (ANSI) without NumPad |
Keyboard Backlight | Yes (1-zone RGB Mini-LED) | Yes |
Biometrics | No (Not supported) | Fingerprint reader (Palm rest) |
Webcam | 720p HD camera | 1080p FHD camera with Privacy Shutter |
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 | 1x USB-C 3.2 Gen 2 (Power Delivery 3.0 / DisplayPort 1.4); 2x USB-A 3.2 Gen 1 (One Always On); 1x SD card reader |
Video Ports | 1x HDMI 2.1 FRL | 1x HDMI 1.4b (Supports up to 4K@30Hz) |
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) | 52.5 Wh (Polymer) |
Charger | 240 W AC adapter | 65 W Round Tip (Barrel connector) adapter |
Weight | 2,200 g (4.85 lbs) | 1,550 g (3.42 lbs) |
Build Material | Plastic chassis with Aluminum lid (Mecha Gray) | PC-ABS + 40% GF (Plastic chassis) |
Operating System | Windows 11 Home | Windows 11 Home |
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As an Amazon Associate I earn from qualifying purchases. | Check Price on Amazon→ | Check Price on Amazon→ |
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→
Lenovo IdeaPad Flex 5 14" 2-in-1
Rating:★4.2(21)Amazon
Processor:AMD Ryzen 7 7730U (Barcelo-R, 8 cores, up to 4.5 GHz)
Graphics:AMD Radeon Graphics (Integrated)
AI Engine:No (Not supported)
Cooling:Air (Single fan)
RAM:16 GB LPDDR4x-4266
RAM Upgrade:No (Soldered)
Storage:512 GB PCIe NVMe M.2 2242 SSD
Storage Upgrade:Yes (1x M.2 2242 slot; supports up to 1TB)
Display Size:14"
Resolution:1920 x 1200 (WUXGA)
Aspect Ratio:16:10
Screen Type:IPS (Glossy; Touchscreen)
Refresh Rate:60 Hz
Brightness:300 nits
Color Gamut:45% NTSC (approx. 60% sRGB)
Keyboard Layout:US English (ANSI) without NumPad
Keyboard Backlight:Yes
Biometrics:Fingerprint reader (Palm rest)
Webcam:1080p FHD camera with Privacy Shutter
USB Ports:1x USB-C 3.2 Gen 2 (Power Delivery 3.0 / DisplayPort 1.4); 2x USB-A 3.2 Gen 1 (One Always On); 1x SD card reader
Video Ports:1x HDMI 1.4b (Supports up to 4K@30Hz)
Audio Ports:1x 3.5mm Headphone/Mic combo jack
Connectivity:Wi-Fi 6 (802.11ax 2x2); Bluetooth 5.1
Battery:52.5 Wh (Polymer)
Charger:65 W Round Tip (Barrel connector) adapter
Weight:1,550 g (3.42 lbs)
Build Material:PC-ABS + 40% GF (Plastic chassis)
Operating System:Windows 11 Home
✓ Pros:
- • Versatile 360-degree hinge allows for laptop, tent, stand, and tablet modes
- • Modern 16:10 WUXGA (1920x1200) resolution provides more vertical screen real estate
- • Includes USB-C with Power Delivery and DisplayPort 1.4 support
- • Physical privacy shutter on the 1080p webcam
- • Fingerprint reader included for secure login
✗ Cons:
- • Display color gamut is limited to 45% NTSC, resulting in less vibrant colors
- • HDMI 1.4b port is limited to 4K output at only 30Hz
- • RAM is soldered and cannot be upgraded
- • M.2 slot is limited to the physically shorter 2242 form factor
As an Amazon Associate I earn from qualifying purchases.
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Which one is better?
The ASUS TUF Gaming A15 15.6" 144Hz Gaming Laptop is the better buy for most people - its powerful RTX 4050 GPU smashes the Lenovo's integrated graphics. That said, grab the Lenovo IdeaPad Flex 5 if you need a lighter, more portable 2-in-1 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 play a lot of demanding games, need maximum performance for multitasking, or require extensive storage with 1TB SSD.
Choose the Lenovo IdeaPad Flex 5 14" 2-in-1 if: you want a versatile device for note-taking, enjoy a touchscreen for easy navigation, or prefer a lighter laptop for everyday tasks. (14" display, 60 Hz refresh)
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. Lenovo IdeaPad Flex 5 14" 2-in-1 is better if you prioritize versatile 360-degree hinge allows for laptop, tent, stand, and tablet modes. 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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