Lenovo IdeaPad 5i 2-in-1 (16″) vs Acer Aspire 15 (A15-51)
43
out of 100
VS
44
out of 100
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 5i 2-in-1 (16″)
- Higher number of cutting-edge USB Type-C ports: 2 versus 1
- Thinner bezels and 5% higher screen-to-body ratio
- Can run popular games at about 17-23% higher FPS
- Around 12% better multi-core CPU performance in the Cinebench 2024 test
- Features a a little bigger (~8%) battery – 57 against 53 watt-hours
- Display has support for touch input
Advantages of the Acer Aspire 15 (A15-51)
- Slightly easier to carry: weighs 130 grams less (around 0.29 lbs)
Tests and Specifications
Comparison table of test results and technical specsCase
| Weight | 1.9 kg (4.19 lbs) | 1.77 kg (3.9 lbs) |
| Dimensions | 356 x 255 x 18.4 mm 14.02 x 10.04 x 0.72 inches |
362.9 x 237.5 x 17.9 mm 14.29 x 9.35 x 0.7 inches |
| Area | 908 cm2 (140.8 inches2) | 862 cm2 (133.6 inches2) |
| Screen-to-body ratio | ~81.8% | ~77.9% |
| Side bezels | 5.7 mm | 8.8 mm |
| Colors | Gray, Blue | Gray |
| Material | Top: Aluminum Middle: Plastic Bottom: Plastic |
Top: Aluminum Middle: Plastic Bottom: Plastic |
| Transformer | Yes | No |
| Opening angle | 360° | - |
Size comparison
| Cooling system | Active | Active |
| Vapor chamber | No | No |
| Liquid metal | No | No |
| Number of fans | 1 | 1 |
Display
| Size | 16 inches | 15.6 inches |
| Type | IPS LCD | TN LCD |
| Refresh rate | 60 Hz | 60 Hz |
| PPI | 142 ppi | 141 ppi |
| Aspect ratio | 16:10 | 16:9 |
| Resolution | 1920 x 1200 pixels | 1920 x 1080 pixels |
| HDR support | No | No |
| Sync technology | No | No |
| Touchscreen | Yes | No |
| Coating | Glossy | Matte |
| Ambient light sensor | No | No |
Screen space comparison
IdeaPad 5i 2-in-1 (16″)
16″ (16:10 ratio) = 115.1 in2
Aspire 15 (A15-51)
15.6″ (16:9 ratio) = 104 in2
~10% more screen space
| Contrast | 800:1 | - |
Max. brightness
Battery
Capacity
| Full charging time | - | 1:35 hr |
| Battery type | Li-Po | Li-Ion |
| 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 | - | 257 grams |
CPU
CPU name
| Base frequency | 1.4 GHz | 1.2 GHz |
| Turbo frequency | 5 GHz | 4.7 GHz |
| Cores | 10 (2P + 8E) | 6 (2P + 4E) |
| Threads | 12 | 8 |
| L3 Cache | 12 MB | 10 MB |
| Integrated GPU | Intel Iris Xe Graphics (80EU) | Intel UHD Graphics (64 EU) |
| 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
| TGP | 15 W | 15 W |
| Type | Integrated | Integrated |
| Fabrication process | 10 nm | 10 nm |
| GPU base clock | 300 MHz | 300 MHz |
| GPU boost clock | 1300 MHz | 1250 MHz |
| FLOPS | 1.7 TFLOPS | 1.3 TFLOPS |
| Memory size | System Shared | System Shared |
| Memory type | LPDDR5X | LPDDR5 |
| Memory speed | 6.4 Gbps | 6.4 Gbps |
| Shading units (cores) | 640 | 512 |
| Texture mapping units (TMUs) | 40 | 32 |
| Raster operations pipelines (ROPs) | 20 | 16 |
| GPU performance | 1.7 TFLOPS | 1.3 TFLOPS |
GPU Benchmarks
Steel Nomad Lite Score
Expected FPS based on average performance across 9 popular games. Details
RAM
RAM size
| Channels | 2x4 GB | 1x8 GB |
| Clock | 6400 MHz | 6400 MHz |
| Type | LPDDR5X | LPDDR5 |
| Upgradable | No | No |
Storage
Storage size
| Bus | PCI-E Gen 4.0 (4x) | PCI-E Gen 4.0 (4x) |
| Storage type | SSD (M2) | SSD (M2) |
| Channels | 1x512 GB | 1x256 GB |
| Upgradable | Yes | Yes |
| Total slots | 1 | 1 |
| NVMe | Yes | Yes |
Sound
| Audio chip | Realtek ALC3287 | - |
| Speakers | 2.0 | 2.0 |
| Power | 2x2W | - |
| Dolby Atmos | Yes | No |
| Microphones | 2 | 2 |
Connectivity
| Wi-Fi standard | v6E | v6E |
| Bluetooth | v5.3 | v5.3 |
| Fingerprint | Yes | Optional |
| Infrared sensor | No | No |
| Optical drive | No | No |
| Webcam | Above the display | Above the display |
| Webcam resolution | 1920 x 1080 | 1920 x 1080 |
| USB-A | 2x USB 3.2 | 2x USB 3.2 |
| USB Type-C | 2x USB 4.0 | 1x USB 4.0 |
| Thunderbolt | No | No |
| HDMI | 1x HDMI 1.4 | 1x HDMI 2.1 |
| DisplayPort | No | No |
| VGA | No | No |
| Audio jack (3.5 mm) | Yes | Yes |
| Ethernet (RJ45) | No | No |
| SD card reader | Yes | No |
| Proprietary charging port | No | Yes |
Input
| Keyboard type | Island | Island |
| Numpad | Yes | Yes |
| Backlight | Yes | Yes |
| Key travel | 1.5 mm | - |
| Size | 12.0 x 7.5 cm | - |
| Surface | Plastic | Plastic |
| Windows Precision | Yes | Yes |
Further details
Notes on IdeaPad 5i 2-in-1 (16″):
- Intel features LPDDR5X RAM running at 5200 MHz, while AMD – at 6400 MHz.
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.
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