Does faster RAm heat up CPU?

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No. DDR3 consumer ram runs at a maximum of 1.65v. It does not put out enough heat to affect the cpu. Ram frequency (1333, 1600, 2133 mhz) does not directly increase heat output. However, higher speeds tend to require more voltage. Again, this is not enough to affect the cpu.
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aMunster

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No. DDR3 consumer ram runs at a maximum of 1.65v. It does not put out enough heat to affect the cpu. Ram frequency (1333, 1600, 2133 mhz) does not directly increase heat output. However, higher speeds tend to require more voltage. Again, this is not enough to affect the cpu.
 
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dish_moose

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Basically any cmos semiconductor device will use more energy as wasted energy when the output toggles between states. Therefore when frequency increase so does temperature(more wasted energy). If you are running your memory at a fast rate the cpu's memory controllers has to keep up. I's up to you to find a balance if you are also OCing.
-Bruce
-Bruce
 
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gskill support

gskill support

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Max DDR3 DRAM Voltage is 1.65V for performance RAM, but the higher the frequency, the more stress will be placed on the CPU memory controller. As a result, temps will be higher, which is why aftermarket CPU coolers are necessary for DDR3-2133+. It keeps the CPU nice and cool, limiting degradation. You read a lot about how Intel recommends 1.50V max, and people automatically assume 1.65V is bad and not good.. but the end point is if you keep the memory and CPU at the same operating temps as if the memory were running at 1.50V, then it should have a very good lifespan.

Thank you
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kanewolf

kanewolf

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petar said:
Disagree with above conclusions. Looking into voltage is not enough. Memory uses 1.2V (ddr4 for e.g.). The more modules you have on the pcb (32GB vs 64GB), the more Amperes (A) it draws. Energy produced is Vots x Ampers (P=U*I) so yes more chips more power drawn. Also, the higher frequency, higher Ampere draw, so also more heat too. The only exception would be that you buy newer memory, better manufacturing process (less nano meter technology) so it draws less Amps, still 1.2V but then Power output is lower.

So my advice, buy faster and better and bigger memory, just try finding sticks using chips manufatured in newer technology which then draws less Amps.

Some evidence, experience, upgrading notebook to 3200MHt runs hotter than 2400MHz using identical Micron sticks, almost identical chips. Using even lower CL settings things get even more stable. Undervoling CPU is interesting too.
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Please don't dredge up an 8 year old thread.

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