During Apple’s press event on Wednesday, the Cupertino-based company took direct aim at NVIDIA’s Tegra 3 processor, claiming its own A5X chip delivers four times the performance. The company neglected to show hard evidence to support its claim, however. Ken Brown, a spokesman for NVIDIA, told ZDNet that while it was “certainly flattering” to be mentioned by Apple, the performance claims are unfounded without more data. “We don’t have the benchmark information,” Brown said. “We have to understand what the application was that was used. Was it one or a variety of applications? What drivers were used? There are so many issues to get into with benchmark.” When Apple’s new iPad goes on sale on March 16th, NVIDIA plans to run tests in order to determine whether or not Apple’s claims hold water. “At some point it will become more clear what the performance really is,” Brown concluded. “For now, Apple has a really generic statement.”