Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U vs ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD
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Lenovo IdeaPad Slim 3, Core i7-13420HKSh 85,000
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HP Envy x360 15t-fe000, Core i7-1355U + RTX 3050 4GBKSh 175,000.00
Quick comparison
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U |  ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Display Size | — | 14-inch |
| Processor | Intel Core Ultra 7 155U | Intel Core Ultra 7 255U |
| GPU | Integrated Intel Graphics | Integrated Intel Graphics |
| RAM | 32GB | 16 GB |
| Storage | 512GB | 1 TB |
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Full specifications
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General
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Brand | Lenovo | Lenovo |
| Model | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s 2-in-1 Gen 1 |
| Announced | 2024 | 2025 |
| Form Factor | Clamshell | 2-in-1 convertible laptop |
| Color | — | Black |
Design
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Build Materials | carbon fiber build | Aluminium chassis with 360° hinge |
| Dimensions | — | 313.6 × 219.4 × 16.4 mm |
| Weight | — | Starting at 1.4 kg |
Display
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Display Size | — | 14-inch |
| Display Type | — | IPS anti-reflection touchscreen |
| Resolution | — | 1920 × 1200 (WUXGA) |
| Refresh Rate | — | 60 Hz |
| Brightness | — | 400 nits |
| Touchscreen | — | Yes, 10-point multi-touch |
| Display Features | — | 16:10, 100% sRGB, low-power panel, Corning Gorilla Glass |
Performance
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Processor | Intel Core Ultra 7 155U | Intel Core Ultra 7 255U |
| CPU | 12 cores, 14 threads, up to 4.8GHz | 12 cores (2 P-cores + 8 E-cores + 2 LP E-cores), 14 threads; up to 5.2 GHz; 12 MB Intel Smart Cache; Intel AI Boost NPU |
| GPU | Integrated Intel Graphics | Integrated Intel Graphics |
| Graphics Memory | Shared system memory | Shared system memory |
| RAM Type | — | Soldered LPDDR5x |
| Storage Type | — | M.2 PCIe 4.0 x4 NVMe Opal 2.0 SSD |
Memory & Storage
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| RAM | 32GB | 16 GB |
| Storage | 512GB | 1 TB |
Battery & Charging
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Battery | — | 58 Wh |
| Battery Life | — | Varies by workload and configuration |
| Charging | — | Rapid Charge supported |
| Power Adapter | — | 65 W USB-C AC adapter |
Software
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Operating System | — | Windows 11 Pro |
Connectivity
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Ethernet | No built-in Ethernet | No built-in Ethernet; adapter supported |
| Wi-Fi | — | Wi-Fi 6E (802.11ax 2×2) |
| Bluetooth | — | Bluetooth 5.3 |
Keyboard & Input
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Stylus Support | No | Yes; garaged rechargeable ThinkPad Pen |
| Keyboard | — | Spill-resistant 360° convertible ThinkPad keyboard |
| Keyboard Backlight | — | LED backlight |
| Trackpad | — | TrackPoint and Precision multi-touch trackpad |
| Fingerprint Reader | — | Fingerprint reader integrated with power button |
What's in the Box
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Laptop | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 – Ultra 7 255U, 16GB RAM, 1TB SSD |
Camera & Audio
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Webcam | — | 5 MP + IR webcam with privacy shutter |
| Speakers | — | 2 × 2 W stereo speakers |
| Microphones | — | Dual-array microphones |
| Audio Features | — | Dolby Audio; Dolby Voice |
Ports
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| USB-A | — | 2 × USB-A 5 Gbps |
| USB-C | — | 2 × Thunderbolt 4 / USB4 USB-C |
| Thunderbolt / USB4 | — | 2 × Thunderbolt 4 / USB4 |
| HDMI | — | HDMI 2.1 |
| DisplayPort | — | DisplayPort via USB-C / Thunderbolt |
| Memory Card Reader | — | No |
| 3.5mm Audio Jack | — | 3.5 mm headphone/microphone combo jack |
| Other Ports | — | Kensington security slot |
Additional Features
| Specification | Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U | ThinkPad T14s Gen 1 X360 - Ultra 7 255U, 16GB RAM, 1TB SSD |
|---|---|---|
| Security | — | Discrete TPM 2.0; fingerprint reader; IR camera; webcam privacy shutter |
| Cooling | — | Active fan cooling |
| Special Features | — | 360° hinge; garaged pen; MIL-STD-810H tested |