AMD said Thursday that it had achieved and even surpassed the 25×20 goal set in 2014. Recall: then the company set itself the goal of increasing the energy efficiency of its processors by 25 times by 2020.
AMD said that in fact, the energy efficiency indicator was 31.7 times higher than that of the 2014 Kaveri FX-7600P processor. This chip had a TDP of 35 W (calculated thermal power, as a rule, refers to the “worst” scenario of energy consumption). AMD compared that chip with a 45 W Ryzen 7 4800H, which can also work with a TDP of 35 watts.
AMD wanted for 6 years to improve the energy efficiency of the CPU by 25 times
Although AMD did not provide actual results, project consultant Kevin Krewell of TIRIAS Research said the energy efficiency indicator was obtained by dividing the Cinebench R15 multi-threaded test result by actual power consumption. These results for the FX-7600P and Ryzen 7 4800H were compared. AMD also said that its processors from 2014 to 2020 reduced the average computing time for a particular task while reducing power consumption by 84%.
AMD said in a press release that it also compared the FX-8800P, FX-9830P, Ryzen 7 2700U, Ryzen 7 2800H, Ryzen 7 3750H and Ryzen 7 4800H in their energy efficiency calculations. According to Mr Crevell, AMD could demonstrate even better performance if it chose a processor with a TDP of 25 watts. In this case, it would be necessary to compare with the Kabini APU, for example, with the Athlon 5350.
A significant part of energy efficiency is associated with the new Zen architecture and process technology, and the performance has been largely achieved by increasing the number of cores, switching to chipsets and algorithms like Precision Boost 2 and Extended Frequency Range. A much more intelligent power management technology also played a role.