Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) vs Razer Blade 18 (2025)
44Performance65.6
23.3Display55.5
33.3Battery98.7
67.3Portability20
2 spec wins — Lenovo IdeaPad Slim 3i Gen 10 (15IRH10)7 spec wins — Razer Blade 18 (2025)
InnoReviews verdict
Razer Blade 18 (2025) wins this laptop face-off, 62.2 to 40.7, pulling ahead mainly in battery (+65) and display (+32). Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Lenovo IdeaPad Slim 3i Gen 10 (15IRH10)
- Stronger portability score: 67 vs 20
- 49% lower weight: 1.59 kg vs 3.1 kg
- 32% lower thickness: 18.9 mm vs 27.9 mm
Reasons to pick the Razer Blade 18 (2025)
- Stronger performance score: 66 vs 44
- Stronger display score: 56 vs 23
- Stronger battery score: 99 vs 33
- 515% higher charging: 400 W vs 65 W
- 300% higher Refresh rate: 240 Hz vs 60 Hz
Display
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Screen size | 15.3 ″ | 18 ″+18% |
| Panel type | IPS (anti-glare, non-touch) | IPS |
| Resolution | 1920x1200 | 3840x2400 |
| Refresh rate | 60 Hz | 240 Hz+300% |
| Peak brightness | 300 nits | 500 nits+67% |
Performance
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Processor | Intel Core i5-13420H | Intel Core Ultra 9 275HX |
| Graphics | Intel UHD Graphics (integrated) | NVIDIA GeForce RTX 5070 Ti Laptop |
| RAM | 16 GB | 32 GB+100% |
| RAM type | DDR5-4800 (soldered + 1x SODIMM slot) | DDR5-5600 SO-DIMM (2 slots) |
| Storage | 512 GB | 1,024 GB+100% |
| Storage type | PCIe 4.0 NVMe SSD (2x M.2 2242 slots) | PCIe 4.0 NVMe SSD (2 slots) |
Benchmarks
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Geekbench 6 (single) | — | 3,127Top 15% |
| Geekbench 6 (multi) | — | 20,220Top 11% |
Battery
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Capacity | 50 Wh | 99 Wh+98% |
| Charging | 65 W | 400 W+515% |
Design
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Weight | 1.59 kg+49% | 3.1 kg |
| Thickness | 18.9 mm+32% | 27.9 mm |
| Material | Aluminum or PC-ABS (top), PC-ABS (bottom) | CNC aluminum (recycled) |
Connectivity
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Ports | 2x USB-A 5Gbps, 1x USB-C 5Gbps (PD 45-65W, DP 1.2), HDMI 1.4, SD card reader, 3.5mm combo jack, round-tip power connector | 1x Thunderbolt 5, 1x Thunderbolt 4, 3x USB-A 3.2 Gen 2, HDMI 2.1, 2.5G Ethernet, SD (UHS-II), 3.5mm |
| Wi-Fi | Wi-Fi 6 or Wi-Fi 7 (by configuration) | Wi-Fi 7 |
| Bluetooth | 5.2 or 5.4 (by configuration) | 5.4 |
| Webcam | HD 720p or FHD 1080p with privacy shutter (IR on some configurations) | 5MP + IR |
| Biometrics | Optional IR camera for Windows Hello; no fingerprint reader | IR face (Windows Hello) |
Software
| Spec | Lenovo IdeaPad Slim 3i Gen 10 (15IRH10) | Razer Blade 18 (2025) |
|---|---|---|
| Operating system | Windows 11 (Home or Pro) | Windows 11 |
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