Chipmaker AMD has been hit with a class action lawsuit that claims the company misled customers by claiming that its Bulldozer CPUs had twice as many cores as it functionally had.
With its Bulldozer architecture AMD chose to combined two cores into a single module, and while Windows would identify both cores making up the module, the cores shared a number of resources, which meant they could not work independently. However, when it came to marketing, the company presented each core as a separate entity.
The suit claims that the average consumer in the market for CPU lacks the technical expertise needed to understand the design of AMD's processors and instead would trust the company's specs regarding core count. Because AMD did not accurately communicate the specification, the lawsuit claims that tens of thousands of consumers were misled into buying Bulldozer CPUs that don't work in the same way a true eight-core CPU would.
AMD has not yet commented on the suit.
Comment from AMD:
"We believe our marketing accurately reflects the capabilities of the "Bulldozer" architecture which, when implemented in an 8 core AMD FX processor is capable of running 8 instructions concurrently."