Apple recently released its hotly-anticipated iPhone 5, and tech gurus opined that the smartphone will give competitors, especially arch-rival Samsung, a run for their money. However, a new report indicates that the iPhone 5 is unlikely to impact Samsung's sales.

"Greenwich Consulting, a firm focusing on telecom, media, utilities and financial services found that Apple's introduction of new iterations of its iPhone have not historically been shown to have much effect on Samsung shipments," according to Forbes.

In 2011, market leader Samsung surpassed Apple in smartphone shipments. However, the fact that Samsung manufactures several phones which cater to different price segments, as opposed to Apple's limited high-end offerings, could have contributed to its shipment figures. Despite Samsung's wider range of offerings and larger shipping figures, Apple generates more revenue from its mobile phone sales than its rival.

The Greenwich Consulting report also compared Apple's estimated advertising expenditures vis-à-vis challengers Samsung and HTC. In 2012, Samsung has currently spent nearly $250 million in U.S. advertising, which is less than half of Apple's estimate. By comparison, in 2011, Samsung spent a total of $142 million towards advertising and promotions. The figures indicate that even though Samsung is lagging behind Apple when it comes to marketing, the company has made steady inroads and is looking to establish its presence more aggressively.

The iPhone 5 pre-orders sold out within an hour, bearing testimony to the smartphone's popularity. However, whether the iPhone 5 will eventually make a dent in Samsung's market share, impacting its shipments in the long term, remains to be seen.