According to a report from DDaily, Samsung has begun mass
producing 5.25-inch AMOLED displays for the Galaxy S5, reaffirming a
previous report that claimed mass production would begin near the end of December.
The new display has a diamond pixel arrangement like the S4 and Note
3′s display – green pixels interleaved with alternating red and blue
pixels, but with each red and blue pixel shaped like a diamond for
increased sharpness and pixel density. The resolution of the screen is
2,560×1,440, equating to a pixel density of 560 ppi, and rumors suggest
an LCD variant of the S5 might exist as well.
The Galaxy S5 is expected to sport a QHD (2,560×1,440) 2K display, a Snapdragon 800/805 processor/64-bit Exynos processor, 3GB of RAM, 16-megapixel camera, and Android 4.4 KitKat. It is also expected to be the first Samsung flagship to have a metal construction, at least on one of its variants.
Source