<page_title> ThinkPad X series </page_title> <section_title> X61 and X61s </section_title> <table> <cell> Processor: Intel Core 2 Duo, From 1.8 GHz T7100 to 2.5 GHz T9300 Chipset: Intel 965GM Memory: from 512 MB to 4GB DDR2 667 MHz (2 slots, 8GB is unofficially supported) Graphics: Intel X3100 Storage: 1 × SATA-1 (from 80 to 160 GB) Display: 12.1" 1024×768 CCFL TN Weight: starting at 1.41 kg (3.1 lb) </cell> </table>
The ThinkPad Xseries used an Intel Core 2 Duo.