Qualcomm Snapdragon vs 855 845: is there a noticeable difference?

Don’t know about you, but I have during the announcement of the new chipset from Qualcomm has the impression that the previous version came out recently and is still not ready to retire. Actually, because it is. All known manufacturers of mobile devices are already in a relatively short time with the release of the Snapdragon 845 market managed to install it into their flagships, and some even in smartphones mid-range set. But despite all this, we have new generation Snapdragon 855, and in this article I propose to compare the past and the current generation of “dragons” and try to understand, and whether there is between them is noticeable to the common user the difference and is it worth it to upgrade to a new device just because it put a new “piece of metal” from Qualcomm.

What’s inside?

The first characteristic that comes to mind when comparing processors – the production process. Snapdragon 855 is the first 7-nm FinFET chip Qualcomm, as Snapdragon is 845 FinFET chip built on the basis of 10-nm theprocess. This mean that for smaller circuits became available higher energy efficiency.

Snapdragon 855 was also the first Qualcomm chipset, which used a “trehlistnyj” design instead of the classical scheme with four large and four small cores, as in the Snapdragon 845, the new processor uses a single large nucleus, four medium (the size of a large Snapdragon 845) and four small. The more the core is a Cortex-A76 on the ARM with a greater peak frequency and a large volume of cache than that of other cores and of cores, the Snapdragon 845 Cortex-A75.

In terms of graphics, everything is traditional. In the past generation stood Adreno graphics processor 630, and in this set Adreno 640. Qualcomm estimates the increase in productivity of 20% across the generations, but other improvements had not been mentioned. Among other innovations like the codec support H. 265 and VP9, shooting 360-degree video and video at a resolution of 8K. Support for new codecs allows to reduce power consumption during playback high quality video. New cpos Hexagon Hexagon 685 690 vs the new chip also increased the performance of AI.

As has been said many times, the new processor from Qualcomm acquired X24 LTE modem with support for fifth generation networks. In theory, the speed of upload and download should be 2 GB/s and 316 Mbps, respectively. But all this is only in theory, so as to test the possibilities, and yet ultimately the difference between the old and new modems may not be significant. In addition, many smartphone manufacturers said that their devices have support for 5G, although in the Snapdragon 855 this modem yet and needs to be installed separately from the CPU.

Look at the results of synthetic tests

On all smartphones that have adopted the test was run four well-known benchmark tests: AnTuTu, GeekBench (single core and multicore) and 3DMark. The test involved four smartphone Snapdragon 855 and two smartphones on Snapdragon 845.

Thanks to the AnTuTu test we can look at overall system performance, but GeekBench shows the performance of single-core and multicore processors. 3DMark also shows the results of the smartphones in the test on schedule.

If you take the average value for each of the chips, it becomes clear that the biggest difference in the results on the performance of single-core processors – an increase of 46% compared to the Snapdragon 845. This is no doubt due to the new design of the processor Kryo 485 Cortex-A76 and the large volume cache memory to 512KB compared to 256KB from Snapdragon 845.

The performance of multicore processors shows a lesser but still an impressive performance gain of 29 percent. Again, new large core Cortex-A76 show better performance than the Snapdragon 845 Cortex-A75, despite the lower clock frequency. GPU performance is almost as improved as promised Qualcomm – 19%. This performance boost will definitely help to smooth out frame rates in more demanding games.

Overall, Snapdragon 855 about 29% faster performance in AnTuTu. Of course, these indicators do not always reflect real workloads. Moreover, there are other important factors that are not accounted for in these tests, including the performance of AI and video encoding/decoding.

In addition to tests, what else is new?

Going back to the beginning of this article, all of these tests are well and good, but does the change of generation chipsets some really noticeable performance increase for the average user. The increased frame rate, no doubt, will appeal to gamers, but what about those who don’t play?

Everything will depend on manufacturers of mobile devices and what they decide the performance of the new Snapdragon 855 to use. Compared with the previous generation Snapdragon 855 has more improved features to speed computation and information processing, this means that face detection will now be faster, a smartphone with a camera now in real time can track your movement and put your 3D model in the scene, creating a very real augmented reality. The new chipset has sufficient capacity to HDR video in 4K resolution and 60 frames per second to blur the background behind the object in focus creating a bokeh effect.

Combine all this with advanced image processing, superb audio quality via Bluetooth with aptX technology and support for video recording in the resolution of 8K and it becomes clear that Snapdragon 855 – a new opportunity for smartphone manufacturers and for the users. And appropriate will change your smartphone to another with a newer CPU only when tightened the producers of these phones and show why their device on Snapdragon 855 is better than the other on the old generation of processors.

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