The Intel Core i5-750s is a higher-end, quad-core desktop processor. The CPU is a more energy-efficient version of the i5-720, reducing thermal design power from 95W to 82W. The two processors are positioned at the top of the i5 series as its only quad-core members. The i5-750S comes with a reduced clock speed of 2.40 GHz, but can be overclocked to 3.2 GHz like the i5-750, and features an 8MB L3 cache. The CPU is similar to the "S" version of the entry-level model in the top-of-the-line i7 series, the 2.53GHz i7-860S, sharing a Nehalem microarchitecture and Turbo Boost, among other features, but notably disabling simultaneous multithreading technology. The i5-750S also features XD bit, which helps defend against certain viruses, but lacks Trusted Execution Technology, a more advanced safety feature found in dual-core i5-series units.