Samsung has already released its biggest device of the year, Samsung Galaxy S4, but the Korean tech giant is still launching new devices under its Galaxy series.

Some devices have already been mentioned in some official statements, whereas some are still part of rumors making the rounds of the Internet.

The latest one to heat up the rumor market is the Samsung Galaxy Mega 5.8 smartphone. The phone, as the name suggests, will sport a 5.8-inch display. It has been give the model number GT-I9152, and will be powered by a dual-core processor supported by a 1.5 GB of RAM. The upcoming phone is expected to run Android 4.1.2 or 4.2.2 Jelly Bean OS out of the box.

If the specifications of the upcoming smartphone are true, then a big question comes up here: why would Samsung release new devices with dual-core processor with Android 4.1.2 or 4.2.2 Jelly Bean OS, if the upcoming Android 5.0 Key Lime Pie is not going to support devices running on dual-core processors?

Samsung released Galaxy Young devices that run on a single-core processor, if we consider this device to be an entry-level one and ignore it then also Samsung is going to launch Galaxy S4 Mini on a dual-core processor.

Talking about already-launched dual-core smartphones in the Galaxy series, Samsung released Galaxy Grand, which is an above-mid-level smartphone, powered by a dual-core processor just four months ago.

If we bring all these factors together, believing rumors that Android 5.0 Key Lime Pie is going to support quad-core processors or advanced ones is very hard.

Samsung has always been very careful when it came to delivering to customers. If we take Samsung Galaxy S2 as example, the device was released on Android 2.3.4 Gingerbread and that phone received the second Android update recently. The smartphone, which was the most sold Android device in the year 2011, moved to Android 4.0 Ice Cream Sandwich first and then it was updated to Android 4.1.2 Jelly Bean. The S2 devices are expected to see the Android 4.2.2 Jelly Bean update also. The Galaxy S2 is the only device from Samsung that has traveled the most on the Android path.

Samsung's Galaxy Tab 7.0 Plus is only one update behind the Galaxy S2. The tablet was released running Android 3.2 Honeycomb and it moved on to Android 4.1 Jelly Bean recently. The tablet witnessed the Android 4.0 Ice Cream Sandwich in between, and is expected to move on to the Android 4.2.2 Jelly Bean update.

If Android smartphones running on dual-core processors stop at Android 4.2 Jelly Bean, users of those devices will not have so much to lose. However, Samsung's credibility will definitely take a dip as it releases devices with dual-core processor running on Android 4.1 Jelly Bean OS, even after knowing that this will be the last Android version for those devices.