Qualcomm Unveils Snapdragon 810 And 808 64-bit ChipsetsBy cheatmaster 03:02 Mon, 19 Jul 2021 Comments
elegant Qualcomm unveiled the chipsets that will power a fine number of next year's flagship and mid-range phones. The Snapdragon 810 and 808 both bring improvements in processor performance, 3D rendering and LTE.
Both have 64-bit processors and utilize ARM Cortex A5x Central Processing Units (CPU) cores instead of Qualcomm-designed Kraits. They leverage the big.LITTLE architecture, similar to the Samsung Exynos quad and hexa-core chipsets.
Note that these aren't the first 64-bit chipsets by Qualcomm, the first was the Snapdragon 410, followed by the 610 and 615.
The Snapdragon 810 replaces the 805 as the top of the line chipset. It features four Cortex-A57 and four Cortex-A53 processor cores. Those are the Cortex-A15 and A7 replacements respectively, but the A57 should offer a 25-55% increase in performance at the cost of just 20% increase in power consumption. And the power consumption will probably actually be even as the 20% incompatibility will be offset by the utilize of a 20nm manufacturing process, instead of 28nm.
The way the two recent chipsets work is that the Central Processing Units (CPU) cores are divided into two groups. All cores can work at the same time, but cores in a group must utilize the same frequency (the two groups can utilize different clocks though). This differs from the Krait designs where the clock speed of each core can be set individually.
In terms of GPU, the Snapdragon 810 has a brand recent Adreno 430, which is advertised as 30% faster than the Adreno 420, which in turn is 40% faster than the Adreno 330 found in current Snapdragon 800/801 chipsets. The discontinue result is something like an 80% performance increase over the current generation.
This chipset also has a hardware H265/HEVC encoder. The Internet Service Provider (ISP) uses 14-bit image processing, both of which can have tangible effects on capturing camera image quality.
The 810 has a 64-bit bus to LPDDR-1600 RAM, that's 3,200Mega Hertz (MHz) data rate and 25.6GB/s bandwidth.
This one uses an A57/A53 combo but is a hexa-core processor – two Cortex-A57 cores and four Cortex-A53 cores. Given the performance benefits of the recent cores, the 808 chipset should be about as fine as the current quad-A15 designs.
The Snapdragon 808 uses a recent GPU too, Adreno 418. It slots under the Adreno 420 found in the Snapdragon 805, with 30% better performance than the Adreno 330.
This chipset has a 64-bit memory bus to LPDDR3-933 RAM, that's 1,866Mega Hertz (MHz) data rate and 15GB/s bandwidth. The chipset has an Internet Service Provider (ISP) that can decode H265/HEVC but not encode it.
Both chipsets should be available in H1 2015.
The two recent chipset feature 4G LTE Cat. 6 modems, which offer whopping maximum download speeds of 300MBps. To do that it bonds up to three 20Mega Hertz (MHz) data pipes, compared to Cat. 4 modems that utilize a single 20Mega Hertz (MHz) channel.
This, of course, relies on the carriers having enough available bandwidth. If there are not enough 20Mega Hertz (MHz) channels, the modems can utilize 20Mega Hertz (MHz) + 5Mega Hertz (MHz) + 5Mega Hertz (MHz) to boost the speed.
Source | Via
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