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Graphics performance
Our look at graphics performance starts with GLBenchmark, which uses OpenGL ES 2.0 and is available for both Android and iOS. GLBenchmark isn't available through the Amazon Appstore, forcing the Kindle out of the action for another round. The Transformer Prime will also have to sit this one out; GLBenchmark didn't play nicely with Ice Cream Sandwich when we tested that tablet early last year. The Prime has since gone back to Asus, so we haven't been able to retest it.

The Nexus 7 is a little bit faster than the Transformer Pad 300 in GLBenchmark, suggesting that Jelly Bean offers slightly better graphics performance than Ice Cream Sandwich. Although it has a higher-clocked Tegra processor with the same GeForce GPU, the Transformer Pad Infinity scores lower than the Nexus 7 in the standard tests because it's rendering the scenes at a much higher 1920x1200 resolution.

Of course, we should also note the dominating performance of the iPads in the offscreen tests. Apple's tablet processors have much more potent graphics hardware than the Tegra 3.

We have one more graphics performance test: Basemark ES 2.0 Taiji. Unfortunately, the free version isn't yet available on iOS, so the iPads will have to join the Kindle on the sidelines.

Somewhat surprisingly, the Nexus 7 has a big lead over the Transformers in Basemark. This test may tax the CPU more than GLBenchmark, and thus benefit from whatever optimizations are responsible for the Nexus 7's improved Linpack performance.