As we showed you in our analysis of the Gamebench game graphics display comparison, resolution can't be televised. There are some very murky arguments about the advantages of, say, the 1440p display of the Galaxy S6, against the 750p display of the iPhone 6 when it comes to game imagery.
First
off, most games aren't optimised for such high resolutions, meaning
that the image is simply upscaled, reducing the overall quality, and
second, even if it is, the fairly orthodox nature of mobile game
graphics means that the difference just won't be very noticeable for the
typical eyesight.
There is another side to the
graphics quality story, though, as per Alexandru Voica, a technology
marketing specialist at Imagination Technologies, and it is the good ol'
GPU brand. The PowerVR
models used in Apple's proprietary chipsets, come with a higher quality
texture compression standard, resulting in better-looking imagery,
regardless of the resolution. Another fly in the ultra high-res ointment
is that games on the iPhone render at a higher resolution, then scale
the image down to fit the screen's pixel number, which is also better
for the resulting graphics quality than the upscaling that goes on with
the Quad HD display of the S6.
Other factors
that influence the graphics' excellence are pixel storage formats,
different anti-aliasing techniques, and floating point precision. All of
these components are better presented on the custom PowerVR GPU line
that Apple uses, compared to the generic ARM Mali
brand that Samsung is incorporating in its Exynos chipsets. In a
nutshell, the examples show that the record pixel density of the Galaxy
S6 doesn't really translate into better game graphics, when compared to a
lower-res screen, paired with a quality pixel-cruncher
source: Alex Voica (Techspeak blog).
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