Heat generated by computer

[mRoy62]

This may not be a typical question here, but I’m about to build a new pc that will be primarily used for Lightroom and want to keep the heat generated by the unit as a whole at an optimum level. Will the Intel 9900k generate a lot more heat than say the AMD 3700X? I have a small office and my current pc does generate a noticeable amount of heat to the point the room gets quite hot.

[Mira Yurizaki]

The i9-9900K will generate more heat than the Ryzen 3700X. However, there's a question of how long the operation will take. If the 3700X takes longer than the i9-9900K, eventually the 3700X will dump more heat into environment for the same task. But the heat output between the two is pretty massive at 50W or so, so it's very unlikely the 3700X will dump more heat overall than the i9-9900K.

[xdeathshot20]

it more depends on how the system will be used.  All cpus generate heat, they will generate more heat if pushed to there limits say overclocking them or running them at 100% cpu usage.  Just add a good cooler and you shall be fine

[Sorenson]

I haven’t used the i9 but I tried the 3700x but it ran a lot hotter than than the 9700k in my itx system. I’m not sure why since it was suppose to be a lower tdp chip but maybe it’s because it runs at a higher voltage.

[Enderman]

25 minutes ago, Mira Yurizaki said:

The i9-9900K will generate more heat than the Ryzen 3700X.

Nope.

The 3700X uses more power and therefore creates more heat.

[Mira Yurizaki]

2 minutes ago, Enderman said:

Nope.

The 3700X uses more power and therefore creates more heat.

I'm using my numbers from:

 

 

[Enderman]

9 minutes ago, Mira Yurizaki said:

I'm using my numbers from:

 

 

Oh I looked at some other tests, you might be right.

 

[SupaKomputa]

I ran R5 1600 65 watt, my room ambient temperature is around 5c more than the room without pc just to give you a perspective.

So both of them will surely heat your room, the difference is only 1-2c max. Especially if you also be using hot GPU.

Both cpu is designed to work in 30-40c idle and 80-90c full load.

If the pc heat is a problem for you, try to manage the room air circulation or lower the AC temps.

[Mira Yurizaki]

3 minutes ago, Enderman said:

Oh I looked at some other tests, you might be right.

 

They've tested Intel's processors for TDP rating and found that Intel has some convoluted formula to get the printed one and the actual power consumption can peak to stupidly high amounts.

[SupaKomputa]

or you can do this.

[Enderman]

7 minutes ago, Mira Yurizaki said:

They've tested Intel's processors for TDP rating and found that Intel has some convoluted formula to get the printed one and the actual power consumption can peak to stupidly high amounts.

Yeah peak isn't what matters though, sustained average under load is what will determine the ehat output.

And yeah some motherboards do run the processor at turbo on all cores for extended periods of time, above the intel spec TDP.

[mRoy62]

Thanks for the replies and tips here. I think given I will be using primarily for Lightroom and Photoshop the maximum heat generated will only be for a short time, probably during import in LR and the odd filter or two in PS. So, I think I’m really interested in the heat output during idle. If I understand the above, there will not be too much difference. Given the speed of SSDs now I guess the best thing to do would be to put the PC in sleep mode when I’m not using it, if the room gets too hot.

[Princess Luna]

You could just build using the locked i9 9900 Variant and don't cheap up on the cooling solution, the heat output will rather meaningless.

[MMKing]

48 minutes ago, Princess Luna said:

You could just build using the locked i9 9900 Variant and don't cheap up on the cooling solution, the heat output will rather meaningless.

Cooling solution makes 0 difference unless the heat is moved out of the room. In fact, a more powerful cooler may allow the CPU to boost higher, consuming more power and generating more heat.