Does using Intel integrated graphics affect the CPU performance?

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Mawbat

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Hi!
I'm building my new desktop with an i7 4790K and since I wanna do audio production with it , there's no need for a powerful graphics card so I'm gonna stick to integrated graphics on the processor.
But I don't know if it's gonna affect the CPU's performance or not!
Is it gonna consume processing power? Should I buy a cheap graphics card in order to use my CPU's maximum performance?
 

Rit_86

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No, it won't affect your CPU performance per say. However, it will eat much more into your onboard memory. If you use a single channel memory, it will affect you even more, since graphic intensive applications need a very wide memory bandwidth. So, in case you are using integrated GPU and have a single channel memory, your CPU performance will be bottlenecked by the memory. A discrete GPU should not have that problem.
 

Thaisnang

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It shouldn't put much affect the CPU's performance but you should get a cheap dedicated GPU anyways. It would be a overall better solution performance wise. Something like GT 720 or 730 maybe.
 

azathoth

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The HD4600 graphics inside of the CPU will do the graphics processing of regular windows usage without any issue at all. It will not change your CPU usage at all if you were to add a dedicated GPU in the slightest bit.

The only thing that would change would be maybe a couple degrees of temperature due to less of the chip being used overall, which unless you were planning to HEAVILY overclock wouldn't be any concern either.

---Zero performance hit using the HD4600 integrated graphics.
 

Rit_86

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No, it won't affect your CPU performance per say. However, it will eat much more into your onboard memory. If you use a single channel memory, it will affect you even more, since graphic intensive applications need a very wide memory bandwidth. So, in case you are using integrated GPU and have a single channel memory, your CPU performance will be bottlenecked by the memory. A discrete GPU should not have that problem.
 
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