Amazon's opening salvo comes from its processor, which it claims delivers 50 percent more IOps than the SoC running the Nexus 7. The 7-inch Fire HD contains Texas Instruments' OMAP 4460, and the 8.9-inch model has an OMAP 4470. Both of these SoCs incorporate two ARM Cortex A9 application processor cores and PowerVR GPUs with 2-D and 3-D graphics acceleration and full HD video.
The 7-inch Fire HD's processor will run at 1.2GHz, though it can clock at up to 1.5GHz. The 8.9-inch unit will run at 1.5GHz, but the 4470 supports speeds up to 1.8GHz. The Nexus 7 also packs ARM Cortex A9 cores; its Nvidia Tegra 3 has four running at 1.3GHz along with a GeForce GPU with 12 graphics processor cores. The 4470 processor has a PowerVR SGX540 GPU with four graphics cores and is on par with the new iPad and its A5X custom SoC, which also packs two Cortex A9 cores and four PowerVR graphics cores.