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i5-2400 power consumption vs i5-12600

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Jul 15, 2020
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System Name Dirt Sheep | Silent Sheep
Processor i5-2400 | 13900K (-0.02mV offset)
Motherboard Asus P8H67-M LE | Gigabyte AERO Z690-G, bios F29 Intel baseline
Cooling Scythe Katana Type 1 | Noctua NH-U12A chromax.black
Memory G-skill 2*8GB DDR3 | Corsair Vengeance 4*32GB DDR5 5200Mhz C40 @4000MHz
Video Card(s) iGPU | NV 1080TI FE
Storage Micron 256GB SSD | 2*SN850 1TB, 230S 4TB, 840EVO 128GB, IronWolf 6TB, 2*HC550 18TB in RAID1
Display(s) LG 21` FHD W2261VP | Lenovo 27` 4K Qreator 27
Case Thermaltake V3 Black|Define 7 Solid: 2*TOUGHFAN 14Pro+2*Stock 14 inlet, NF-A14 PPC-3000+NF-A8 outlet
Audio Device(s) Beyerdynamic DT 990 (or the screen speakers when I'm too lazy)
Power Supply Enermax Pro82+ 525W | Corsair RM650x (2021)
Mouse Logitech Master 3
Keyboard Roccat Isku FX
VR HMD Nop.
Software WIN 10 | WIN 11
Benchmark Scores CB23 SC: i5-2400=641 | i9-13900k=2281 MC: i5-2400=i9 13900k SC | i9-13900k=35500
I still rock that ancient hog and planning to replace it.
I want to compere the power consumption in order to know how much more power (W) I will need in the new PSU (after 12 years my Enermax Pro82+ 525W should be put to rest).

According to spec the i5-2400 is a 95W CPU, the i5-12600 (non K) is 65W with max turbo of 117W.
Still, I guess the 12600 will draw and need more power than just 117-95=22W.
But how much more?
 
According to spec the i5-2400 is a 95W CPU, the i5-12600 (non K) is 65W with max turbo of 117W.
Still, I guess the 12600 will draw and need more power than just 117-95=22W.
But how much more?
I don't know if you realize this but the Intel Core i5-12600 has been reviewed by some media outlets including this very site:


which shows power consumption during a Prime95 stress test at 135 W (stock), 189 W (OC), and 196 W (power limits removed).

To be clear, the stress test is the worst case scenario. A heavy real world workload like a Handbrake encode will mimic the multi-threaded scenario (Cinebench 146 W, 172 W, 176 W respectively) more closely than the stress test. You can run a Handbrake encode or Cinebench on your current processor to see where its power consumption stands relative to the 12600's results in the TPU review.

The TPU review was the top hit when I used the query "intel 12600 review" at an Internet search engine (yes, one of those quaint things old timers used to do 10-15 years ago).

I will leave it up to you to source other reviews and compare them to TPU's analysis. You may need to use a search engine.

Best of luck.
 
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In most workloads, it will be less, because in comparison the i5-2400 is demanded much more of than the i5-12600 is to do the exact same workload. When you max both processors out, you may find that the 12600, by itself, is probably using a little more power, but it is vastly more powerful and that small increase is definitely offset by the much more efficient DDR4 memory and much newer chipset used. In other words, it will probably be very hard to tell, both will have the same general level of power consumption with the 12600 performing many times faster.

I would not worry about it.
 
for the psu it depends what other parts you have planned for this pc... e.g gpu
 
I don't know if you realize this but the Intel Core i5-12600 has been reviewed by some media outlets including this very site:
This much I know (I myself an "old timer") but I search and didn't find any informative i5-2400 review. I do appreciate your subtle imply to do the work myself instead of making others do it for me but I also use forms as a "realty check" as I tend to do mistakes. Hope you don't mind :)

Anyway, as you suggested, I dig little bit more. It is i5-2500K review but I guess close enough. 2500K use ~115W stressed out.
So 12600 190W (OC) - 2500K 115W= 75W bump. It actually more because the 2400 use less than 2500K so I will settle for extra 100W (worst case scenario).

for the psu it depends what other parts you have planned for this pc... e.g gpu
I tend to keep my 970GTX for now as it still do the job. I have the patience to wait for the GPU price to come down to reality (and today`s MSRP is not it...) and for "the right product" to be born (970GTX, 560TI league in terms of efficiency to price). Then I will see if it can cope with the PSU. I`m deliberately choosing GPU according to a given PSU and not the other way around. Power consumption is out the roof those days and for no obvious reason.
 
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You shouldn't need a review on the i5-2400. YOU HAVE ONE.

Just run the Cinebench benchmark or a real-world task to see how much power it consumes right now in your current build. In fact, that's the best way because of the silicon lottery; your part might deviate a bit from whatever sample a reviewer used years ago in a build that's totally different than yours.

Moreover you can review your current thermal solution at the same time.

Sure, I look at product reviews, sometimes to provide guidance on what I might consider buying. I'll also compare a newly-purchased CPU to a review to ensure that I'm getting performance close to what one might reasonably expect. But ultimately how my part runs is more important than how someone else's part runs. If a newly purchased item isn't running how I would hope, I'll return it. If Lady Fortune smiles on me and I get a Golden Sample, I'll keep it.

The reason to consult a review of the i5-12600 NOW is because you DON'T have one yet and you are trying to spec out a PSU in preparation for this CPU upgrade.
 
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Just run the Cinebench benchmark or a real-world task to see how much power it consumes right now in your current build. In fact, that's the best way because of the silicon lottery; your part might deviate a bit from whatever sample a reviewer used years ago in a build that's totally different than yours.
Well, I didn't know you can measure power consumption (W) with Cinebench. Was sure you must have external device (watt-o-meter, watts up) to take that kind of read.

Will check it out, thanks!
 
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i think you should get a new psu when you get your new parts..
 
i think you should get a new psu when you get your new parts..
Yes, agree. The parts are CPU, MB, RAM, NVME, case, fans, colling. Not GPU.
But that's only my way. I can do totally understand way someone buy the GPU with the rest of the stuff.
 
Well, I didn't know you can measure power consumption (W) with Cinebench. Was sure you must have external device (watt-o-meter, watts up) to take that kind of read.
I use HWiNFO for sensor monitoring. I am not aware of any monitoring features in Cinebench.

A hardware device like a Kill-a-Watt really only measures the current at the wall, a holistic view of your system. It won't measure power usage of individual computer components and would be rather useless for your specified goal: estimating power usage difference between your current i5-2400 and your envisioned i5-12600.
 
My first processor! Had that in a Dell Optiplex 7010 that I somehow ran a Sapphire RX470 in too. Aww, memories. Cinebench has none, you use HWINFO for that malarkey.
 
I use HWiNFO for sensor monitoring. I am not aware of any monitoring features in Cinebench.

A hardware device like a Kill-a-Watt really only measures the current at the wall, a holistic view of your system. It won't measure power usage of individual computer components and would be rather useless for your specified goal: estimating power usage difference between your current i5-2400 and your envisioned i5-12600.
HWiNFO seems very informative and together with Cinebench I can get that W matter - Much appreciate!


My first processor! Had that in a Dell Optiplex 7010 that I somehow ran a Sapphire RX470 in too. Aww, memories. Cinebench has none, you use HWINFO for that malarkey.
I had Athlon 3200+ before the i5-2400, Pentium 1 before that and an i486-DX2 as a starter PC back in the naïve and happy early 90`s :)
 
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Well, I didn't know you can measure power consumption (W) with Cinebench. Was sure you must have external device (watt-o-meter, watts up) to take that kind of read.
Those meters are cheap and worth getting if you are curious about more than your computer's wattage. This is the best simple way to do this, Cinebench can't do it accurately enough.
 
If you plan on getting a current- or next-gen GPU before replacing your PSU again, please ensure that you have plenty of headroom and/or an ATX 3.0 certified PSU to handle the high transients of new GPU's.
 
Here are some reviews that include the i5-2400. Different reviewers get power consumption results that are vastly different, so check the descriptions of the test systems in each case and compare them to the one you have. Try to identify components beside CPU that also consume a lot, even on idle, like top-end GPUs and top-end motherboards.




And hey, on top of the Internet search engine you've got the great TPU search engine:

 
If you plan on getting a current- or next-gen GPU before replacing your PSU again, please ensure that you have plenty of headroom and/or an ATX 3.0 certified PSU to handle the high transients of new GPU's.
Those "high transients" you speak of are predominantly restricted to the very high end GPU's, think 3090/Ti/6900/6950 XT etc, it is present with lower end cards but on a MUCH lower level, for instance a 6700 XT will see transient highs of 350w -/+, which is nothing that a quality PSU that was bought with a 6700 XT in mind can't deal with, seems to be getting worse with newer gen from all reported info, talks of 900w+ transient spikes for 4090 :eek:
 
Those "high transients" you speak of are predominantly restricted to the very high end GPU's, think 3090/Ti/6900/6950 XT etc, it is present with lower end cards but on a MUCH lower level, for instance a 6700 XT will see transient highs of 350w -/+, which is nothing that a quality PSU that was bought with a 6700 XT in mind can't deal with, seems to be getting worse with newer gen from all reported info, talks of 900w+ transient spikes for 4090 :eek:
Yes, true, but rumors have it that it will be the case for all upcoming GPU's - hence the new ATX 3.0 spec allowing for power excursions. Better safe than sorry.
 
Here are some reviews that include the i5-2400.
Thanks, I will look into it although I got the info I need.

Those "high transients" you speak of are predominantly restricted to the very high end GPU's, think 3090/Ti/6900/6950 XT etc, it is present with lower end cards but on a MUCH lower level, for instance a 6700 XT will see transient highs of 350w -/+, which is nothing that a quality PSU that was bought with a 6700 XT in mind can't deal with, seems to be getting worse with newer gen from all reported info, talks of 900w+ transient spikes for 4090 :eek:
Actually, power spikes happens in all graphics card, no matter their Wattage.
It just that with the high-end of 3000&6000 cards that It started to be a real problem.

Steve made a good video about it:

If you plan on getting a current- or next-gen GPU before replacing your PSU again, please ensure that you have plenty of headroom and/or an ATX 3.0 certified PSU to handle the high transients of new GPU's.
When I will upgrade it is to something in the 970gtx power consumption level, maybe a bit more.
Now days I tend to do more primire pro and lightroom work than play and when I'm playing it is for fun. I'm not Batteling graphics settings and have no moral problem to lower eye candy if the game require.
 
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Probably the max power will draw in other state like turboboosting or cpu drwa with 100%
 
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