AMD Shaves 800 Million Transistors Off Bulldozer Without Physically Changing The Chips
Time to start firing the PR guys! As is the case with all technical products these days, AMD used a lot of lofty-sounding numbers and specs to make its new 8-core Bulldozer chips sound friggin’ awesome in the company’s press releases. Eight cores, four modules, a 315mm die area, two billion transistors – actually, scratch that last one. Over the past weekend, AMD contacted several publications and said that, um, somebody screwed up. Eight-core Bulldozer chips actually only have 1.2 billion transistors. Oops.
The Inquirer provides the text of the message for our viewing pleasure:
Last week, AMD confirmed the transistor count in the AMD FX CPU line-up at 1.2 billion, a correction from the earlier count of 2 billion. The earlier figure of 2 billion transistors was unfortunately shared in error. This correction is not the result of a new revision to the Bulldozer design. The correct count of 1.2 billion applies to all recently introduced 8-core AMD processors that are based on the new Bulldozer core - AMD FX family of desktop CPUs and AMD Opteron family of server and HPC processors. We apologize for the confusion.
So, the bad news is that somehow, this slipped through the cracks until several weeks after the first reviews hit the streets. The good news is that since the drastic transistor reduction is due to clerical error rather than an actual revision to the chips, the results of our review still stand. The funny part is that 1.2 billion transistor number may still be a bit off. Joel Hruska at Extreme Tech took a look at the tech behind Bulldozer and speculates that the chips actually have at least 1.32 billion transistors – and that’s “before we add I/O, integrated memory controller, or HyperTransport.”
Thoughts? Is this an embarrassing gaffe or much ado about nothing?