Despite the fact that Apple and Samsung are now big rivals in the tablet space, the Cupertino, Calif.-based vendor has once again turned to the South Korean conglomerate to fabricate its new dual-core chip, UBM TechInsights finds. The analysts at our sister United Business Media Ltd. (UBM) (London: UBM.L) unit note that there had been rumors that Taiwan Semiconductor Manufacturing Co. (TSMC) (NYSE: TSM) might have built the new processor.
Instead, like the earlier A4, the ARM Ltd. -derived A5 is once again being built by Samsung using a 45-nanometer process, which helps manufacturers cram more components on the silicon while generally lessening overall power requirements.
The TechInsights team says that the first indication the A5 could be a Samsung-manufactured processor was the similarity in word mark between this font on the new chip and the font in the Apple A4:

The TechInsights team confirmed that -- as rumored -- the new processor uses low-power DDR2 DRAM (LPDDR2). This memory is specifically designed for improving battery life and performance in smartphones and other devices.
Here's a comparison of the all the Apple processors so far from TechInsights:

— Dan Jones, Site Editor, Light Reading Mobile