AMD’s Ryzen 4000 series of APUs made the company seriously compete for popularity in laptops as well. Now, however, Intel has picked up a detail on the beak of the stick, which few reviews pay special attention to: battery performance.

According to Intel, depending on the test, laptops with AMD processors will even perform 29 – 48 percent less on the battery than at the end of the plug, when for laptops with the company’s own processors the difference is a single percentage. Intel has used PCMark 10, WebXPRT, and PPT to PDF tests as examples.

The reason for the difference is apparently in the short tests, because as Intel says in its slides, AMD will only increase the performance of its processors to full with a delay of about 7 – 11 . Apparently, the tests chosen by Intel are so short in nature that the difference made by a slow startup becomes significant. In longer tests, such as Cinebench, the difference cannot be made in the same way because the test itself lasts long enough.

Several third parties, such as ArsTechnica, have verified that Intel’s tests are correct. However, the site points out that despite this slowness, for example, during the five-minute Cinebench R 23 loop, Ryzen 7 Pro 4750 U renders frames more than Core i7 – 1185 G7 while consuming less energy. The reference laptops chosen by Intel for the test were also criticized, as their TDPs and actual consumption differed significantly

. Intel therefore hopes that future tests on laptops will be done either on the battery, or on both the battery and the cable end, to get a true picture of the laptop’s performance. So far, AMD has not commented at any level.

Update: Tom’s Hardware also features other Intel-run tests around the same theme.

Source: ArsTechnica