We use the US Department of Defense’s MIL-STD 810H standards to create a balance of reliability and durability for every ThinkPad. Tested against 12 stringent standards and more than 200 quality checks, the ThinkPad E14 Gen 4 business laptop will run in even the harshest of conditions, from the Arctic wilderness to desert dust storms.

Raptor Lake 13th Gen Processor  

The Lenovo ThinkPad E14 Gen 4 is equipped with the Intel Core i7-1355U is a high-end mobile CPU for thin and light laptops based on the Alder Lake architecture (Raptor Lake-U / RPL-U series). It was announced in early 2023 and offers 2  performance cores (P-cores, Golden Cove architecture) and 8 efficient cores (E-cores, Gracemont architecture). The P-cores support Hyper-Threading leading to 12 supported threads when combined with the E-cores. The clock rate ranges from 1.7 to 5 GHz on the performance cluster and 1.2 to 3.7 GHz on the efficient cluster. The performance of the E-cores should be similar to old Skylake cores (compared to the Core i7-6700HQ). All cores can use up to 12 MB L3 cache. The CPU supports “Essentials” vPro management features. Compared to the P-series (28W) or H-series (45W), the 15W TDP may limit the sustained performance.