https://wccftech.com/qualcomm-snapdragon-855-plus-official/

Qualcomm just announced a spruced up version its current flagship chipset, the Snapdragon 855 SoC. Called Snapdragon 855 Plus, the new silicon’s prime core CPU has a higher clock speed and there is also a faster GPU added to the mix. These changes have been added since the company might believe that the two upgrades will be sufficient to give a boost to gaming-centric smartphones and give other premium devices some glamour during their everyday use.

The eight-core Kryo 485 CPU has been clocked at 2.96GHz just for the Kryo 485 Gold lone core, whereas the primary CPU of the Snapdragon 855 maintains a frequency of 2.84GHz. This translates into single single-threaded workloads getting up to a 4.2 percent improvement. More importantly, this is the configuration that ARM initially aimed for, which means the chipset will be running at an optimum performance and efficiency balance.