Lenovo IdeaPad Flex 5 (15”) vs 3i 15” (Intel)
Please select specific configurations for the laptops to get a more accurate comparative review
Review
Performance
System and application performance
Gaming
Performance in popular 3D games
Display
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Connectivity
Ports, webcam and other interfaces
Portability
Design, materials, durability and usability
Pick the usage scenario that best matches your needs
Value for money (Beta)
Key Differences
Advantages of the Lenovo IdeaPad Flex 5 (15”)
- Can run popular games at about 23-32% higher FPS
- Features a much bigger (~38%) battery – 52.5 against 38 watt-hours
- Performs slightly better (up to 15%) in 3DMark Steel Nomad Lite
- Display has support for touch input
Advantages of the Lenovo IdeaPad 3i 15” (Intel)
- Slightly easier to carry: weighs 170 grams less (around 0.37 lbs)
- High-speed PCI Express Gen 4 interface
- Provides 20% higher max. screen brightness: 300 vs 250 nits
Tests and Specifications
Comparison table of test results and technical specsCase
| Weight | 1.8 kg (3.97 lbs) | 1.63 kg (3.59 lbs) |
| Dimensions | 357.6 x 237.9 x 17.9-20.3 mm 14.08 x 9.37 x 0.7-0.8 inches |
359.2 x 236.5 x 19.9 mm 14.14 x 9.31 x 0.78 inches |
| Area | 851 cm2 (131.9 inches2) | 850 cm2 (131.6 inches2) |
| Screen-to-body ratio | ~78.9% | ~79% |
| Side bezels | 6.1 mm | 6.9 mm |
| Colors | Gray | Gray, Blue, Yellow |
| Material | Top: Aluminum Middle: Plastic Bottom: Plastic |
Plastic |
| Transformer | Yes | No |
| Opening angle | 360° | 180° |
Size comparison
| Cooling system | Active | Active |
| Vapor chamber | No | No |
| Liquid metal | No | No |
| Number of fans | - | 2 |
Display
| Size | 15.6 inches | 15.6 inches |
| Type | IPS LCD | IPS LCD |
| Refresh rate | 60 Hz | 60 Hz |
| PPI | 141 ppi | 141 ppi |
| Aspect ratio | 16:9 | 16:9 |
| Resolution | 1920 x 1080 pixels | 1920 x 1080 pixels |
| HDR support | No | No |
| Sync technology | No | No |
| Touchscreen | Yes | No |
| Coating | Glossy | Matte |
| Ambient light sensor | No | No |
| Contrast | - | 800:1 |
| sRGB color space | 60% | - |
Max. brightness
Battery
Capacity
| Full charging time | 2:00 hr | - |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Fast charging | Yes | Yes |
| Charging via USB (Power Delivery) | Yes | Yes |
| Charging port position | Left | Left |
| Charge power | 65 W | 65 W |
| Weight of AC adapter | 360 grams | 350 grams |
CPU
CPU name
| Base frequency | 1.2 GHz | 2.0 GHz |
| Turbo frequency | 3.4 GHz | 3.5 GHz |
| Cores | 2 | 2 |
| Threads | 4 | 4 |
| L3 Cache | 4 MB | 4 MB |
| Integrated GPU | Intel UHD Graphics G1 | Intel UHD Graphics Xe G4 48 EUs |
| Fabrication process | 10 nm | 10 nm |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench 2024 (Single-Core)
Cinebench 2024 (Multi-Core)
Graphics Card
GPU name
| Type | Dedicated | Dedicated |
| Fabrication process | 12 nm | 14 nm |
| FLOPS | 1.7-2.8 TFLOPS | 1.2-1.9 TFLOPS |
| Memory size | 2 GB | 2 GB |
| Memory type | GDDR6 | GDDR5 |
| Memory bus | 64 bit | 64 bit |
| Memory speed | ~10 Gbps | ~7 Gbps |
| Shading units (cores) | 896 | 640 |
| Texture mapping units (TMUs) | 56 | 32 |
| Raster operations pipelines (ROPs) | 32 | 16 |
| GPU performance | 1.7-2.8 TFLOPS | 1.2-1.9 TFLOPS |
GPU Benchmarks
Steel Nomad Lite Score
| Blender GPU | 140 | 71 |
Expected FPS based on average performance across 9 popular games. Details
RAM
RAM size
| Channels | 1x4 GB | 1x4 GB |
| Clock | 3200 MHz | 3200 MHz |
| Type | DDR4 | DDR4 |
| Upgradable | Yes | Yes |
| Total slots | 2 | 1 |
| Max. ram size | 16 GB | 16 GB |
Storage
Storage size
| Bus | PCI-E Gen 3.0 (4x) | PCI-E Gen 4.0 (4x) |
| Storage type | SSD (M2) | SSD (M2) |
| Channels | 1x128 GB | 1x128 GB |
| Upgradable | Yes | Yes |
| Total slots | 1 | 1 |
| NVMe | Yes | Yes |
Sound
| Audio chip | - | Realtek ALC3287 |
| Speakers | 2.0 | 2.0 |
| Power | 2x2W | 2x1.5W |
| Dolby Atmos | Yes | Yes |
| Microphones | 2 | 2 |
Connectivity
| Wi-Fi standard | v6 | v6 |
| Bluetooth | v5 | v5.2 |
| Fingerprint | Yes | No |
| Infrared sensor | No | No |
| Optical drive | No | No |
| Webcam | Above the display | Above the display |
| Webcam resolution | 1280 x 720 | 1280 x 720 |
| USB-A | 2x USB 3.2 | 2x USB 3.2 |
| USB Type-C | 1x USB 3.2 | 1x USB 3.2 |
| Thunderbolt | No | No |
| HDMI | 1x HDMI 1.4 | 1x HDMI 1.4 |
| DisplayPort | No | No |
| VGA | No | No |
| Audio jack (3.5 mm) | Yes | Yes |
| Ethernet (RJ45) | No | No |
| SD card reader | Yes | Yes |
| Proprietary charging port | Yes | Yes |
Input
| Keyboard type | Island | Island |
| Numpad | No | Yes |
| Backlight | Yes | Yes |
| Key travel | - | 1.5 mm |
| Size | - | 10.4 x 6.9 cm |
| Surface | Plastic | Plastic |
| Windows Precision | Yes | Yes |
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.
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