In fact, how many GB of memory should be stacked in the PC? When comparing performance thoroughly it becomes like this

The sixth generation Intel Core processor "SkylakeWith the advent of the main memory for PCDDR 3FromDDR4It is likely to change to. It is comfortable to know about "how much capacity can be satisfied in terms of performance if equipped with DDR3 that still has merit in terms of price and DDR4 that can be expected to operate at high speed?" It will be of great help in building a PC environment. By saying that,TechSpotHowever, in the situation where the memory capacity differs from 4 GB, 8 GB, 16 GB to Skylake generation PC, various software is executed to thoroughly compare the benchmark and use feeling.

How Much RAM? 4 GB vs. 8 GB vs. 16 GB Performance - TechSpot
http://www.techspot.com/article/1043-8gb-vs-16gb-ram/

TechSpot consists of Core i7-6700K CPU, Asrock Z170 Gaming K6 + motherboard, GeForce GTX 980 graphic board, Crucial MX200 1TB storage (SSD), Windows 10 (64 bit) OS, DDR 4-2666 memory only 4GB / We investigated the influence of memory capacity on performance by changing capacity as 8 GB / 16 GB.


As for the general feeling of use such as net browsing, Office, and mail software, it was said that it was able to operate comfortably in any memory capacity at a level where it is hardly felt to experience a large difference between 4 GB and 16 GB and memory capacity. However, it has been found that the difference in memory capacity gives a big difference in performance in work with relatively high load requiring machine specifications.

◆ Application Performance
· Adobe Premiere CC
Comparing the encoding time in Adobe Premiere CC by memory capacity is like this. The smaller the numerical value of the graph is, the higher the performance is shown.


There is a large difference in performance between 4 GB memory and 8 GB memory, whereas there is little difference between 8 GB memory and 16 GB memory. From this, it is clear that there is a "necessary and sufficient amount" of memory capacity for each processing of the program, and as long as it exceeds it, it is clear that the performance will not rise as the capacity increases.

· 7-Zip
Compression / decompression software7-ZipSpeed ​​when compressing using a 512 MB dictionary file (MIPS), The 16 GB memory shows overwhelming performance, the more memory capacity, the faster the processing.


Compared with the number of KBs that can be processed per second, the overwhelming difference that the 16 GB memory is more than 11 times that of the 8 GB memory. Under such circumstances, it can be said that performance increases can be expected as the memory increases.


◆ Benchmark software
· Blender
3D production softwareBlenderMeasure the benchmark using. In the test state using 6.1 GB of memory, there is hardly any difference between 4 GB, 8 GB and 16 GB of installed memory.


· Lammps
Atomic-molecule parallel simulatorLammpsWith 10.5 GB of memory usage, it is about 10% down with 8 GB memory compared to 16 GB memory, 4 GB memory has more than triple the performance compared to 8 GB memory. With a small memory capacity difference of 4 GB between 4 GB and 8 GB, it is possible to experience a decisive performance difference.


◆ Game
According to TechSpot, past tests show that it is enough for 8 GB of system memory capacity to play games comfortably on gaming PCs. So, in this experiment, in parallel with game play, with 65 active tabs corresponding to about 2.2 GB in the browser Google Chrome opened, we set the situation that more memory usage is needed We test each memory capacity by checking the comfort of game play.

· Grand Theft Auto V
Grand Theft Auto VIt is confirmed that about 9GB memory is used when 16GB memory is installed. However, when comparing the frame rate actually played, it is the same numerical value in 16 GB and 8 GB, and even in 4 GB memory only a slight degradation in performance is seen, and the difference in memory capacity hardly affects the comfort of the game We do not give it.


· Batman: Arkham Knight
Batman: Arkham KnightComparison of frame rate in this is like this. Again, sufficient memory performance is demonstrated even with 4 GB of memory.


· F1 2015
WhileF1 2015As you can see, there is no difference in memory capacity between 4 GB and 16 GB at all. In these games, it is enough to obtain the highest level of performance if 8 GB memory is installed, and it can be understood that loading more memory does not lead to higher performance.


As mentioned above, there are scenes where the capacity of the system memory of the PC has little influence on the performance because the performance of the graphic board is large like a game, and as with Adobe Premiere CC, 8 GB of memory There are differences in the memory capacity required for each situation, such as scenes where the above is preferable and situations such as 7-Zip and Lammps where the memory leads to dramatic performance differences at 4 GB, 8 GB, 16 GB It is sure.

Although it may be advantageous in terms of performance by accumulating a large amount of memory except for power consumption, it is also a fact that it will not be disadvantageous even if it is "factory", "When loading a large capacity memory" . In the Intel Z170 chipset environment in which the DDR4 memory is general, "High-end oriented users that install 16 GB memory × 4 = total 64 GB memory for the sake of peace of mind" are likely to increase greatly.