One of Samsung's upcoming new Exynos chipsets was tested over at Geekbench recently in the Geekbench 3.0 benchmark test over various different areas. Due to some of the different details listed with the benchmark, it is believed that the device housing this CPU from Samsung during the benchmark test could have been a prototype Galaxy S6, most likely because of the Android 5.0 Lollipop software version of the OS along with the 2873MB of RAM, (basically 3GB of RAM) but also because Samsung was rumored to be using their own in-house Exynos processors in the 2015 flagship devices instead of CPUs from Qualcomm. The details on the benchmark scoring sheet also list that the Exynos 7420 CPU is an octa-core (8 core) processor, and the Galaxy S6 has been rumored to carry all of these specs so it's possible we could be looking at benchmark scores from Samsung's next flagship although this is not confirmed in any way and we're merely speculating.
During the testing, the Exynos 7420 received an overall single-core score of 1520 and an overall multi-core score of 5478, displaying that this is certainly a powerful processor coming out of Samsung, however not quite as powerful it seems as the Nvidia Tegra K1 processor found in the Google Nexus 9 tablet which was reported to score a single-core testing score 1895 using the same Geekbench 3.0 testing. For the Exynos 7420, the tests were broken down into different parts, starting with integer performance which gained the Exynos 7420 a single-core score of 1726, and a multi-core score of 7562. The integer performance category tests things like AES, SHA 1, SHA 2, and JPEG/PNG compress and decompress.
The Geekbench 3.0 test also focuses on categories for floating point performance, which gained the Exynos 7420 CPU a single-core score of 1279 and a multi-core score of 5200. This category tests things like blackscholes and sharpen filter among other things. The last category in the Geekbench 3.0 test focuses on Memory performance, resulting in a single-core score of 1591, and a multi-core score of 1870, which tests things like stream copy, stream scale, stream add, and stream triad. The Exynos 7420 is listed in these test results as being clocked at 1.5GHz. Although we don't know exactly if this was powering the Galaxy S6 during this test, we should be able to find out soon enough if Samsung shows off the device officially at the end of next month during MWC 2015.