Those from Nvidia were extremely dissatisfied with Apple's claims that the new A5X graphics chip in iPad 3 would be 4 times more powerful than the graphics chip implemented in Nvidia Tegra 3 chips. Benchmarks later revealed the fact that Apple was not very wrong when it made these statements and some recent IGN benchmarks prove the same. Nvidia Tegra 3 has a more powerful processor and here the iPad 3 has no reason to win, but in terms of the capacity of the graphics chip, we are talking about much better performance, but only if the screen is closed.
When the screen of the iPad 3 tablet is open, it seems that the graphic performance is somewhat weaker than that of the dual-core graphics chip implemented in the iPad 2 tablet, and here we see how much processing power is used by the Retina Display of the new tablet . The difference between iPad 2/3 is not big, but Nvidia Tegra 3 is not far behind either, so Apple is right, but only if we don't use its new Retina Display. Although the new tablet has a quad-core graphics chip implemented, it would not offer superior performance to that of the iPad 2 in terms of graphics, and this is because almost all of its processing power is needed to display images on the new Retina Display.
Detailed information about the tests from IGN find here but I'll summarize everything for you now and tell you that without closing the Retina Display, the A5X chip turns out to be weaker than the A5 chip and a little better than Nvidia Tegra 3 in the synthetic tests.
