Advanced Micro Devices hit the ground running at E3 in Los Angeles on Tuesday, lifting the curtain on an eight-core desktop CPU with an out-of-the-box, gut-busting clock of 5GHz.

AMD's FX-9590 becomes the most powerful processor in the company's FX family of CPUs. It will initially be sold in gaming and multimedia desktop PCs through AMD's system integrator partners, though the chip maker appeared to leave the door open for a standalone "Black Edition" being made available at some point.

"At E3 this week, AMD demonstrated why it is at the core of gaming. The new FX 5GHz processor is an emphatic performance statement to the most demanding gamers seeking ultra-high resolution experiences including AMD Eyefinity technology. This is another proud innovation for AMD in delivering the world's first commercially available 5GHz processor," Bernd Lienhard, corporate vice president and general manager of AMD's Client Products Division, said in a statement.

AMD also introduced the slightly slower but still ripping FX-9370, another eight-core that hits 4.7GHz with the chip maker's Turbo Core 3.0 clock-throttling technology engaged.

Both new chips utilize AMD's latest CPU core architecture formerly code named Piledriver.

Meanwhile, AMD also said Tuesday that it has entered an exclusive partnership with Square Enix to optimize the next edition of the game Thief for select Radeon GPUs built on the chip maker's Graphics Core Next architecture, as well as for AMD's A-Series APUs, which combine CPU and GPU functionality in a single package.

The Square Enix game will also be written to fully utilize baked-in Radeon technologies like Eyefinity multi-display support and CrossFire multi-GPU support, AMD said.

"The Thief franchise has a storied history that we are proud to join in this latest installment. We are even more pleased to work so closely with their development team to realize the vision for these games with the incredible gaming performance of a PC powered by AMD Radeon graphics," Matt Skynner, corporate vice president and general manager of AMD's Graphics Business Unit, said in a statement.

For more on AMD's current and future gaming plans, see the video below.

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