MojoKid writes "At the iPad unveiling last week, Apple flashed up a slide claiming that the iPad 2 was 2x as fast as Nvidia's Tegra 3, while the new iPad would be 4x more powerful than Team Green's best tablet. NVIDIA's response boils down to: 'it's flattering to be compared to you, but how about a little data on which tests you ran and how you crunched the numbers?' NVIDIA is right to call Apple out on the meaningless nature of such a comparison, and the company is likely feeling a bit dogpiled given that TI was waving unverified webpage benchmarks around less than two weeks ago. That said, the Imagination Technologies (PowerVR) GPUs built into the iPad 2 and the new iPad both utilize tile-based rendering. In some ways, 2012 is a repeat of 2001 — memory bandwidth is at an absolute premium because adding more bandwidth has a direct impact on power consumption. The GPU inside NVIDIA's Tegra 2 and Tegra 3 is a traditional chip, which means it's subject to significant overdraw, especially at higher resolutions. Apple's comparisons may be bogus, but Tegra 3's bandwidth issue they indirectly point to aren't. It will be interesting to see NVIDIA's next move and what their rumored Tegra 3+ chip might bring."
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