Around three quarters of the first 10 million Galaxy S4 models will come with a Qualcomm Snapdragon 600 CPU instead of the company's own Exynos 5 Octa processor.
The System LSI division is having issues ironing out the performance and design issues before it could mass produce the device to satisfy the overwhelming demand. Samsung plans to ship the device to as many markets as possible and using the Exynos 5 Octa in most models would slow production down significantly, according to the Korean site ETNews.
Bold predictions for Samsung Galaxy S4 are already being made, as analysts predict the smartphone will double the company's lead over its competitors such as Apple and Nokia.
The device has already become the most pre-registered smartphone in the history of U.K. retailer Carphone Warehouse, showing the immense demand for the device.
Samsung is expected to increase its lead over Nokia currently at 5 percent to 11 percent, according to IHS Research analysts.
The group recently released a list that ranked the top Global Unit Shipments for 2012, which had Samsung in the lead with 29 percent. Nokia came in second with 24 percent and Apple was third with 10 percent.
Samsung was able to create interest for its Galaxy S line by pitting it directly against the iPhone. Various ads were released throughout 2012 that showed what Samsung believed was a superior smartphone to Apple's.
This Galaxy S4 was finally unveiled by Samsung at last week's Mobile "Unpacked" event in New York City.
Many of the rumored specifications were dead on, including the 5-inch display with 441 ppi. However, rumors of Samsung switching to LCD were incorrect, as the device still packs a Super AMOLED.
The Galaxy S4 will come in two colors at launch: Black Mist and White Frost. It also has LTE and HSPA+ connectivity.
Other specs such as a 13-megapixel rear camera, 2-megapixel front camera, and Android 4.2.2 JellyBean are also featured on the Galaxy S4.