Effects of integrated graphics processing on normal processing

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tokyotechy

Commendable
Jan 22, 2017
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Questions


    1) Does using the CPU's integrated graphics processor adversely affect regular processing?
    2) How much does the integrated graphics processor increase CPU temperature on average?
    3) Should I upgrade to a dedicated GPU if #1 and #2 are unfavorable? I mainly watch videos on this PC. I never game on it.


Background

I bought a new 2560x1440 monitor and tried to drive it with my ghetto old ATI Radeon 5770. I purposely bought that a couple years ago for its low temperature, not its processing power. To my chagrin, the HDMI output on that card had a maximum output of 1080p. So I went into my bios and switched to "OBGFX", which I think stands for onboard graphics, which I also think means its using my Intel Core i5 6500's integrated graphics. After switching the HDMI cable from the dedicated graphics card to the motherboard, I was finally able to achieve 2560x1440 resolution on the monitor. Since then, I've been able to play 1080p videos on the web and harddrive just fine.
 
Solution
T
The general consensus has been that the IGPU usage has a negligible effect on temps and performance. And that's when using the 3D acceleration for gaming and the like. If you're just watching videos there are certain conditions (using its dedicated hardware) where it can actually be a lower workload (to the processing portions of the CPU at least) than feeding a GPU since there's less I/O involved. Still nothing to really care about either way.

It looks like the 5770 can output up to 2560x1600 through DP, DL-DVI, and VGA, so if your monitor has any of those you could use that. But if you're not gaming and the IGPU is sufficient, may as well save on the power and heat.
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TMTOWTSAC

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Jun 27, 2015
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The general consensus has been that the IGPU usage has a negligible effect on temps and performance. And that's when using the 3D acceleration for gaming and the like. If you're just watching videos there are certain conditions (using its dedicated hardware) where it can actually be a lower workload (to the processing portions of the CPU at least) than feeding a GPU since there's less I/O involved. Still nothing to really care about either way.

It looks like the 5770 can output up to 2560x1600 through DP, DL-DVI, and VGA, so if your monitor has any of those you could use that. But if you're not gaming and the IGPU is sufficient, may as well save on the power and heat.
 
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Solution
Ecky

Ecky

Illustrious
Feb 3, 2013
7,592
2
38,960
1) What do you mean by "regular processing" ? It will use a few megabytes of RAM but will not affect the performance of applications that run on your CPU.

2) A few degrees C, nothing to worry about. Your CPU will not throttle until 100c anyway and I'm sure you're nowhere near that.

3) If you don't game, pull the discrete card out, it's just wasting electricity.
 
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