CinebenchR11.5 (64-bit, Single) resulted in 1.46 points, which is slightly more than the T440s with the identical processor. The Core i5-4200U/-4300U of the Latitude E7440 is a bit slower, but Dell offers thThe low TDP will limit the Turbo Boost when you stress all four cores. Both cores of the i7-4600U can run with 2.9 GHz, at least in theory, but the clock actually drops to 2.6 GHz after around 30 seconds (Cinebench R11.5 Multi). This temporary transgression of the 15-Watt barrier is intended by the manufacturer to compensate short load periods. e faster Core i7 as well.