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[Testing] High-frequency memory - relevant and timely assistance to the integrated graphics core

Hi, Giktayms! You can't catch a sparrow with a chaff, and it is almost impossible for an experienced piece of iron to prove the benefits of an integrated core and high-frequency RAM. Nevertheless, in 2015, a significant breakthrough in Intel graphics was made and under the cat I propose to evaluate how much the frequency of the RAM affects the performance of the GT3e graphics core (also known as Iris Pro 6200) integrated into the Intel Core i7-5775C processor.



Obviously, the RAM for the integrated graphics is video memory. It is logical to assume that the more productive the RAM, the higher will be the performance of the graphics subsystem. Why do you need it? Everything is very simple, for monoblocks, compact home solutions (like media centers or computers constantly connected to TV), dimensions, noise level and performance of all nodes without exception are important.
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The fifth generation of Intel Core processors became famous not only for the fact that there were only two SKUs in the desktop segment, but also for the fact that for the first time in the desktop segment the user was offered Iris Pro 6200 Graphics - the best integrated graphics from Intel. It has long been known that AMD's “insertion” loves the frequency of RAM, was there a reason to check a similar argument for a competitor? Will increasing the memory frequency increase the performance of the graphics subsystem?

To test my hypotheses, the following test bench was assembled.





There are three scenarios of work: default settings - DDR3-1600, HyperX Fury DDR3L-1866, HyperX Savage DDR3-2133, HyperX Savage DDR3-2400.

The test suite of applications includes synthetic tests, 3D Mark, CatZilla, AquaMark3, Unigine Heaven and games - Resident Evil 6 and Metro: Last Light Redux.

3D Mark


Classic test package from the Finnish company Futuremark. For today's test of interest, the presets Cloud Gate and Sky Diver, since they are focused on the systems of medium and low power.





Catzilla






Unigine Heaven Basic preset






Aquamark3






Resident Evil 6




Metro: Last Light Redux






What can be seen from the graphs? The most obvious conclusion - the performance of integrated graphics depends on the frequency of RAM directly.

For convenience of perception, I will consolidate information into a single table.
HyperX DDR3-1600HyperX DDR3L-1866HyperX DDR3-2133HyperX DDR3-2400
3D Mark Sky Diver62766302 / 0.4%6427 / 2.4%6560 / 4.5%
3D Mark Cloud Gate1288112919 / 0.3%13046 / 1,3%13295 / 3.2%
CatZilla 720p44454604 / 3.6%4809 / 8.2%4993 / 12.3%
Unigine Heaven Basic1143.3891152.125 / 0.8%1207.473 / 5.6%1221.46 / 6.8%
AquaMark 3272704274732 / 0.8%286998 / 5.2%294301 / 7.9%
Resident Evil 625112573 / 2.5%2669 / 6.3%2701 / 7.6%
Metro Last Light Redux34.0034.67 / 2.0%35.67 / 4.9%36.33 / 6.9%


The difference between DDR3-1600 and DDR3-2400 on average is about 7 percent, which is not a very significant value if we are talking about the performance of a discrete graphics card. In the case of a compact integrated solution, this increase will be a good help. An even more significant increase in performance will be in the case of overclocking RAM on its own. The difference in price between simple memory and high-frequency is perceptible, so I recommend keeping the balance and not chasing the numbers 3000 MHz, but below 2133 MHz, if you intend to make a fairly fast system with integrated graphics, do not fall.

By the way, in the measurement process, I discovered for myself that the Iris Pro 6200 obviously surpasses all previous Intel counterparts. I didn’t manage to play FullHD, even if not with the maximum settings in Metro Last Light, but here it is more than 30 frames per second on average ... It’s very interesting if Intel will not abandon this development path, because we can see a new round in the development of all components , the effect of RAM on compact systems will increase even more, the bandwidth of DDR4 will only contribute to this.

Thank you for your attention and stay with Kingston on Hiktatimes!

For more information about Kingston and HyperX products, visit the company's official website . In choosing your kit HyperX help page with visual aids .



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Source: https://habr.com/ru/post/390769/


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