Samsung Galaxy S7: Exynos 8890 octa-core/Snapdragon 820 quad-core CPU, Adreno 530/Mali-T880 MP12 GPU, 4GB RAM
iPhone 6S: Apple A9 64-bit dual-core CPU, 2GB RAM
The Galaxy S7 is powered by Samsung's own Exynos 8890 processor in most territories, including here in the UK. Our US cousins get the more general, off-the-shelf (but still highly capable) Snapdragon 820.
Whichever chip you get, it will offer radically better performance than the Galaxy S6. Samsung claims that both will offer 30% better performance than the Galaxy S6's Exynos 7420 64-bit octa-core CPU. The phone's also got a memory upgrade, with Samsung having loaded the Galaxy S7 with a staggering 4GB of RAM.
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Our own extensive hands-on time with the Galaxy S7 bears this performance boost out. Games in particular absolutely fly on this phone, whether it's the fast-paced 3D racing thrills of Asphalt or the detailed 2D puzzling of Lara Croft Go.
The iPhone, meanwhile, has the dual-core A9 chip and 2GB of RAM. That combo matched the S6, and even exceeded it in general usage, but Samsung holds the advantage - at least until the iPhone 7 arrives.
Our multicore CPU benchmark tests showed that the Galaxy S7 had a clear lead over the iPhone 6S for high-end tasks.
GALAXY S7 VS IPHONE 6S: CAMERA
Samsung Galaxy S7: 12-megapixel, phase detection, Dual Pixels, OIS, f/1.7 lens, 1/2.6" sensor, 1.4 µm pixel, 4K video, 5-megapixel front camera
iPhone 6S: 12-megapixel rear camera, f/2.2 aperture, dual LED flash, 4K video recording, 5-megapixel front camera
The iPhone 6S is no slow poke when it comes to snapping photos. The phone's automatic mode is one of the best we've seen on a smartphone and makes it quicker and easier to take great photos without having to get bogged down in complex settings.
It's only drawback is its lack of optical image stabilisation (OIS), a factor that, combined with its lower f/2.2 aperture meant it struggled to compete with the Galaxy S6 in low light.
The Galaxy S7 widens the gulf in that respect, employing a number of techniques to help boost its low light performance.
For starters Samsung's loaded the Galaxy S7 with a new 12-megapixel sensor - actually less than its predecessor - that's been designed to capture bigger pixels, and as a consequence more light.
Samsung Galaxy S7 tips and tricks
The lens aperture has also been widened to f/1.7, meaning that much more light can physically enter the lens than with the iPhone 6S. Samsung claims the combination of factors mean the Galaxy S7 can capture 95 percent more light than its predecessor - which much equate to a whole heap more than the iPhone 6S.
Our own snaps seem to confirm this, with significantly better results in dark conditions for the Samsung phone.
But it's not just in low-light performance that the Galaxy S7 camera betters the iPhone 6S. It also has the best autofocus system we've ever seen in a smartphone. It's ridiculously quick and accurate.
The iPhone 6S camera remains one of the best in the business for general snaps in good lighting, in which the colour accuracy and general look is often preferable to the Galaxy S7 equivalent. But overall, the Galaxy S7 is the better photographic tool - especially when you factor in its handy home button shortcut and tweakable Pro mode.
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