Samsung’s (005930) Galaxy S 4 might not offer much in the way of an exciting new exterior design, but inside, it’s a completely different story. The retooled internals on the U.S. version of the Galaxy S 4 were put to the test by benchmark specialists Primate Labs and the results are impressive, to say the least. The Galaxy S 4 scored a 3,163 on the standard Geekbench 2 speed test, just shy of twice the iPhone 5’s score of 1,596. That score was also good enough to top the upcoming HTC One, the Nexus 4 and the previous-generation Galaxy S III. The chart below shows the Galaxy S 4’s results compared to other leading smartphones tested by Primate Labs.

It should be noted, by the way, that this test was performed with the slow version of Samsung’s new flagship Android phone. The U.S. variant of the Galaxy S 4 is powered by a quad-core Snapdragon chipset that features integrated LTE radios. The international version of the phone will feature Samsung’s in-house eight-core Exynos process, which will likely offer significant performance benefits.

Other key features on the Galaxy S 4 include a 5-inch Super AMOLED HD display, 2GB of RAM, up to 64GB of storage, a 13-megapixel camera and Android 4.2.2 Jelly Bean. BGR recently published an extensive hands-on preview of the Galaxy S 4 and we said it was better than its predecessor in nearly every way.