Just to reiterate for those who are curious, the difference between the Qualcomm Snapdragon 800 and the Snapdragon 801 is that the latter supports a faster clock speed, which is why the CPU is running at 2.5GHz on the Galaxy S5. And there is one more difference. The Snapdragon 801 also supports a faster maximum GPU frequency (578MHz vs. 550MHz).
An earlier version of the Samsung infographic we showed you earlier Tuesday, revealed the octa-core variant of the Samsung Galaxy S5 (see below). That version of the infographic has since been removed by Samsung.
Earlier version of Samsung's infographic included details on octa-core powered variant of the Samsung Galaxy S5
source: Samsung via Engadget, GSMArena