Amd in legal trouble for 'misleading advertising' of their cpus fx

In 2015, a class action lawsuit was filed against AMD over the advertising of its Bulldozer / Piledriver series of processors, also known as the FX series, which AMD said offered up to "eight cores, " a claim plaintiffs claim is false.

AMD claimed that Bulldozer / Piledriver processors had 8 cores

AMD's Bulldozer architecture is comprised of core modules, each of which offers two CPU cores within a single module, sharing resources between each core. This lawsuit alleges that AMD's Bulldozer-based processors don't actually have eight cores, but instead offer four cores and eight 'threads', claiming that 'sharing' resources between Bulldozer cores results in performance bottlenecks..

The plaintiffs in this case claim that Bulldozer CPUs functionally only have four cores, claiming that the processors they purchased are "inferior to the products represented by the defendant (AMD)".

The trial would begin later this year.

AMD has refuted these claims, claiming that "a significant majority" of people use the same "core" definition as AMD, but US Judge Haywood Gilliam disagrees and has granted a motion that will allow this class action to move forward. The trial is expected to begin later this year. The class action lawsuit will see both sides of this argument meet again in court on February 5 to decide the timeline for the case, with AMD planning to defend itself "vigorously."

The FX processors were considered a failure as they fell far short of the performance Intel offered with its Core series. AMD bet heavily on the parallelism with Bulldozer, but the high performance in a single thread of the Intel processors finally won the battle. It seems that this lawsuit may be another sequel to that battle lost a few years ago, just as AMD is being reborn thanks to the Ryzen series.

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