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 Relationship between graphic card and rendering speed

In InteriCAD, it is provided with a powerful rendering system by YFCAD. Some of our users may wonder what the yellow blocks mean during raytrace.
Actually, these yellows blocks stand for current rendering process numbers, which also mean the current CPU process numbers of your computer. For example, if your computer has an Intel-i3 four cores CPU, then there will be 4 blocks during raytrace. If your computer has an Intel-i3 eight cores CPU, then there will be 8 blocks during raytrace. To some extent, the higher the processors are, the more the blocks are, the faster the rendering is. At present, our program can support 8 blocks at most no matter how much the processors are.
However, some users may still meet this kind of situation: the rendering speed is slow even if he has a powerful computer. Then, we need to consider the graphic cards. Currently, most laptop in the market has two kinds of graphic card, one is integrated graphics, and the other is discrete graphics.  On rendering, discrete graphics gets much better performance than integrated graphics. So it will be slow in rendering if one is using integrated graphics.
Some laptops will switch automatically between discrete graphics and integrated graphics according to the current resource requirement. But some cannot. For this case, we need to switch it manually.
Here are three different ways to switch graphic cards according to different laptop:
1. Usually the switch button is silver on the left bottom of laptop, we just need to flip it down. 
2. The switch button may sometimes locate in the main panel of laptop. Speed means the best performance by activating discrete graphics. Stamina means the longest duration of power by activating integrated graphics.
3. 1). Right Click on the desktop and select NVIDIA Control Panel.
2). Globe Settings -->Set preferred graphics processor. And click Apply to finish setting.