Test Methodology
Comparison Laptops |
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|---|---|---|
| System Name | Lenovo ThinkPad X1 Carbon (2015) |
Lenovo ThinkPad X1 Carbon (2012) |
| Form Factor | 14.0in |
14.0in |
| CPU | Intel Core i7-5600U |
Intel Core i5-3427U |
| Base / Turbo Frequency | 2.6GHz / 3.2GHz |
1.8GHz / 2.8GHz |
| CPU Cores / Threads | 2 / 4 |
2 / 4 |
| CPU TDP | 15W |
17W |
| Integrated Graphics | Intel HD 5500 |
Intel HD 4000 |
| IGP Max Frequency | 950MHz |
1.15GHz |
| Memory | 8GB DDR3 (2x4GB) |
4GB DDR3 (1x4GB) |
| Memory Speed | 1,600MHz |
1,333MHz |
| Memory Timings | 11-11-11-28-1T |
9-9-9-24-1T |
| Display | 14in QHD IPS (2,560x1,440) |
14in HD+ TN (1,600x900) |
| Touchscreen | Yes, 10-point |
No |
| Battery Capacity | 50Wh |
46Wh |
| Wireless | Intel Dual Band Wireless-AC 7265 |
Intel Centrino Advanced-N 6205 |
| Ethernet | - |
- |
| Primary Storage | 256GB Samsung SSD (MZNTE256HMHP) |
128GB SanDisk SSD (SD5SG2128G1052E) |
| Power Supply | 65W External |
90W External |
| Operating System | Microsoft Windows 10 64-bit |
Microsoft Windows 10 64-bit |
| Dimensions (W x D x H) | 331mm x 227mm x 17.7mm |
331mm x 226mm x 18.9mm |
| Weight | 1.3kg |
1.4kg |
| Warranty | 3 Year |
3 Year |
| Date Launched | May 2015 |
August 2012 |
| Price At Launch | £1,955 |
£1,200 |
CPU Benchmarks |
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| HEXUS PiFast | Our number-crunching PiFast test is used to benchmark the computational power of each system's CPU. | |||||||||||
| Cinebench | Using Cinebench's multi-CPU render, this cross-platform benchmark stresses as many cores as possible. | |||||||||||
| HandBrake | Free-to-use video encoder that stresses all CPU cores. | |||||||||||
Memory and Storage Benchmarks |
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| AIDA64 | Benchmark that analyses memory bandwidth and latency. | |||||||||||
| CrystalDiskMark | Popular free-to-use storage benchmark, used to gauge sequential performance and aggregated 4K QD32 speeds. | |||||||||||
System Benchmarks |
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| PCMark 8 | System-wide examination run using the Home and Creative presets with OpenCL acceleration. | |||||||||||
| 3DMark | Graphics benchmark run using the Sky Diver DX11 preset. | |||||||||||
Miscellaneous Benchmarks |
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| Power Consumption | Noted for system-wide power draw while running the HandBrake video-transcoding test. | |||||||||||
| Temperature | Average CPU temperature taken across all cores from the last five minutes of the HandBrake video-transcoding test. | |||||||||||
| Battery Life | Measured while looping a high-definition movie clip with 50 per cent screen brightness and flight mode enabled. | |||||||||||
