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Help with a Sub-80W TDP Processor? Left-Field solutions inside!

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October 7, 2013 10:12:15 PM

I am in the midst of building a custom case measuring somewhere in the neighborhood of 3.75" x 12" x 9".

I need low TDP as most low-profile HSF's stretch to support beyond 80W CPUs.

I have considered the following...



- Athlon 750K rated at 65 Watts (as indicated on the product packaging, not online)

- A10 series FM2 APUs

- 6300 disabling 2 cores



This being said, will using a dedicated card lower the heat on an APU? That is essentially what the Athlon 750K is, but I can get 40$ off of a motherboard through bundling locally if I go with the A10.

Could disabling 2 cores on the 6300 cut heat by NEAR 1/3 ?
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October 7, 2013 11:28:41 PM

Using a dedicated takes the stress off the board as well as heat because the onboard GPU isn't being used. As well as disabling 2 cores you'd have to undervolt it. Disabling the cores will keep it cooler. I used to own the fx 6300 but i never dropped it down to 4. You cant expect the idle temps to go lower than room temperature, under heavy use it will keep it significantly cooler.
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October 8, 2013 1:41:36 AM

FloppyNacho said:
This being said, will using a dedicated card lower the heat on an APU? That is essentially what the Athlon 750K is, but I can get 40$ off of a motherboard through bundling locally if I go with the A10.

Could disabling 2 cores on the 6300 cut heat by NEAR 1/3 ?

What are you using it for? Gaming? If it's only light gaming / mostly a "work box" and you don't need that much GPU power, I'd suggest an Ivy Bridge i3-3240 or even a Pentium. It's "55w" is more like 45-50w in reality - and with undervolting you could get that down to nearer 35w fully loaded Prime. iGPU TDP included.

If you're gaming, then quite honestly, every CPU is going to be iGPU limited. And if you use a discrete GFX card (assuming you can fit one inside a 3.75" height case when many cards are 5" wide), performance-per-decibel ratio is often much higher with a compact Micro-ATX case with a 92mm heatsink / fan than a mini-ITX sized case with a "dwarf" heatsink. Tiny looks cool but is not so good when its noisier.
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