Question I need a CPU with lower power consumption: Intel or AMD ?

[techie_san778]

Hello guys,

I need a 3.5 - 4 Ghz processor. My activities aren't gaming but i regularly use real time data such as stock charts etc. I don't know exactly how much computation is involved in such activities. But i certainly need a CPU with lower power consumption.
Knowing this, which out of Intel and AMD should I go for? Please do suggest me the particular model/models I should go for.
Thanks.

 

[Order 66]

You could either go with a i3 13100 or a ryzen 5 7600. Both are 65W CPUs and would handle what you are doing with ease. I would go with the 7600 as then you have an upgrade path for the next generation of AMD CPUs. Intel will be changing platforms next generation.

 

[artk2219]

Hello guys,

I need a 3.5 - 4 Ghz processor. My activities aren't gaming but i regularly use real time data such as stock charts etc. I don't know exactly how much computation is involved in such activities. But i certainly need a lower power consuming CPU.
Knowing this, which out of Intel and AMD should I go for? Please do suggest me the particular model/models I should go for.
Thanks.

Are you looking to build a desktop or just purchase a pre-built desktop, laptop, or all in one?

 

[TerryLaze]

But i certainly need a lower power consuming CPU.

How low?! And/or why?!
As long as you are not doing much on a CPU it will be running at idle using very little power, and looking at data on the internet doesn't use much power.
Some stock trading apps do run high single core if they need to retrieve prices and place bets..er sorry trades as fast as possible.
But then you would want as high clocks as possible and not just 3.5-4Ghz, which itself is useless since clocks give wildly different performance on different CPUs.

 

[techie_san778]

Are you looking to build a desktop or just purchase a pre-built desktop, laptop, or all in one?

Build a desktop.

 

[techie_san778]

How low?! And/or why?!
As long as you are not doing much on a CPU it will be running at idle using very little power, and looking at data on the internet doesn't use much power.
Some stock trading apps do run high single core if they need to retrieve prices and place bets..er sorry trades as fast as possible.
But then you would want as high clocks as possible and not just 3.5-4Ghz, which itself is useless since clocks give wildly different performance on different CPUs.

So which CPU according to you should do the job?

 

[artk2219]

Build a desktop.

Do you know how much you want to spend on the build? Will you be reusing any current components or will it be a full build? Do you know what size motherboard you're looking to build around?

 

[Countess_C]

I think for overall less power consumption a processor with integrated graphics is the way to go.

 

[Misgar]

To save a bit more power, you could try the i3-13100T with a Base power of only 35W and max Turbo power of 69W:-
https://www.intel.com/content/www/u...-4-20-ghz/specifications.html?wapkw=i3-13100t

The standard i3-13100 has a higher Base power of 60W and max Turbo power of 110W according to this Intel site:-
https://www.intel.com/content/www/u...o-4-50-ghz/specifications.html?wapkw=i3-13100

 

[hotaru.hino]

The T processors seem to be an OEM only thing.

If anything you could also just set a power limit on the processor through the motherboard or a CPU configuration app like XTU or Ryzen Master.

But yeah, CPUs are going to spend most of their time idling. While generally speaking those with fewer cores and chips (in the case of AMD) do idle lower, it's like a handful of watts at a time. So unless you're running on battery power, this isn't much of a concern.

Also note that if you come across any benchmarks regarding idle power usage for the CPU only, AMD CPUs idle higher because they contain what's basically a chipset on the package. If you look at system idle power consumption, systems with either AMD or Intel parts tend to have similar figures

 

[Kona45primo]

A laptop would probably be ideal

 

[sonofjesse]

Laptop will be less than 65W. if that is the main concern.

 

[TerryLaze]

Also note that if you come across any benchmarks regarding idle power usage for the CPU only, AMD CPUs idle higher because they contain what's basically a chipset on the package. If you look at system idle power consumption, systems with either AMD or Intel parts tend to have similar figures

If that is a factor it's not the only one.
ZEN also has a high min voltage that it needs to run at all, which increases the power draw at idle.

AMD Phoenix 2 Review Evaluates Zen 4, Zen 4c Performance

Ryzen Z1/Ryzen 5 7540U vs. Ryzen 7 7840U

www.tomshardware.com

The VID (voltage identification definition) charts revealed that Zen 4 hits the Vmin (the minimal voltage that a processor requires for a workload at a particular frequency) at 2.3 GHz. In contrast, Zen 4c arrives at the Vmin below 1.5 GHz. The V/F (voltage-to-frequency) curve for both cores overlaps at 1.5 GHz.

Alder Lake’s Power Efficiency – A Complicated Picture

Reviews across the internet show Alder Lake getting very competitive performance with very high power consumption.

chipsandcheese.com

Zen 2’s only flaw there is its inability to hit very low power levels. Desktop Zen 2 can’t keep scaling down because it hits a voltage floor much earlier than Golden Cove and Gracemont.

 

[DSzymborski]

I guess my question would be how much do you need to reduce power consumption and for what reason. Now, if you just really need to save $2 a month in electricity, that's great, but if you're going in with the misconception that you're going to shave $100 off your electric bill by CPU choice -- and yes, we get a lot of people who think that kind of stuff -- then an evaluation of your power needs and use would be far more useful than a CPU recommendation. This is the kind of question that's really hard to answer in a helpful manner without contextualizing it.

 

[techie_san778]

Do you know how much you want to spend on the build? Will you be reusing any current components or will it be a full build? Do you know what size motherboard you're looking to build around?

Hey bro, I would take a CPU, Motherboard, RAM, SMPS, and a cabinet(as the current one is quite old).
Size of the motherboard is dependent on the motherboard i would go for.

 

[techie_san778]

I think for overall less power consumption a processor with integrated graphics is the way to go.

Yes you are right of course. I found Intel sub 150 USD ones don't come with integrated graphics. But all the AMD's support which is a plus for AMD but then the idle power consumption is where AMD scores higher.

 

[DSzymborski]

Yes you are right of course. I found Intel sub 250 USD ones don't come with integrated graphics.

Huh? There are a ton of Intel CPUs under $250 that have integrated graphics. In fact, just a quick check of the i3/i5/i7 CPUs on PCPartPicker for 12th and 13th gen, eight of the 14 Intel CPUs under $250 have integrated graphics.

 

[thestryker]

If you're looking for low power consumption you'd probably be best off getting some sort of minipc unless there's some specific reason for a full desktop. Power consumption will be significantly lower and as long as the cooling is sufficient you're unlikely to see any performance issues. Mobile chips also generally have superior integrated graphics than desktop versions.

 

[techie_san778]

Hello Folks,
Will these be compatible with one another : 1. Intel Core™ i3-10105
2. ASUS PRIME H510M-E motherboard
3. Corsair DDR4 3200MHZ
Along with these considering the existing SATA Hard Disk and a DVD RW, how much Wattage SMPS should I go for? Please suggest. Thanks

 

[hotaru.hino]

Hello Folks,
Will these be compatible with one another : 1. Intel Core™ i3-10105
2. ASUS PRIME H510M-E motherboard
3. Corsair DDR4 3200MHZ
Along with these considering the existing SATA Hard Disk and a DVD RW, how much Wattage SMPS should I go for? Please suggest. Thanks

Someone else can refine this search if they really feel the need to: https://pcpartpicker.com/products/p...00&m=337,11,14,101,71,63&sort=price&e=6,5,4,2

Technically speaking, this build shouldn't need more than 150W, but finding decent power supplies below 400W is practically non-existent.

 

[techie_san778]

Someone else can refine this search if they really feel the need to: https://pcpartpicker.com/products/p...00&m=337,11,14,101,71,63&sort=price&e=6,5,4,2

Technically speaking, this build shouldn't need more than 150W, but finding decent power supplies below 400W is practically non-existent.

Thanks a ton for your advice. So a 400W SMPS is what i should look for, But are these components compatible with one another so far as frequency is considered?
1. Intel Core™ i3-10105
2. ASUS PRIME H510M-E motherboard
3. Corsair DDR4 3200MHZ
Thanks

 

[kirantope]

I think for lower power consumption integrated graphics is the best choice.

 

[hotaru.hino]

Thanks a ton for your advice. So a 400W SMPS is what i should look for, But are these components compatible with one another so far as frequency is considered?
1. Intel Core™ i3-10105
2. ASUS PRIME H510M-E motherboard
3. Corsair DDR4 3200MHZ
Thanks

https://pcpartpicker.com/list/QmJmDZ

Looks fine to me (PSU and RAM were picked out at random)

 

[BFG-9000]

While i3s in general are the only Intel processors with real peak power consumption less than 50% higher than the rated TDP, the performance and thus efficiency of the i3-10105 is very low for its max 90 watts. See, when Intel got stuck on 14nm for so long, in order to appear competitive they changed the usual TDP rating to refer only to the base clock, and maximum Turbo clock power consumption became "PL2"

The problem is the Comet-Lake i3-10105 is part of their last generation of 14nm chips (the first was Skylake from 2015) so for 90w you only get 4 low IPC cores at 4.4GHz. In comparison, every 65w TDP rated AMD Ryzen is limited to a maximum of 88w peak so for less power you could get their fastest 65w chip in the Ryzen 9 7900 and get 12 cores at 5.4GHz because it's built on 5nm.

Unfortunately the 7900 does not have an IGP, and while the Zen 4 APUs which do are out for mobile already, they aren't in desktop chips yet. But even the older 7nm Ryzen 7 5700G also peaks at 88w and gives you 8 cores at 4.6GHz, still way more efficient than that old i3-10105 and only $169 too.

If you prefer Intel, I would strongly suggest a newer 7nm Alder-Lake or Raptor-Lake i3 as they double the cache and are more efficient than Comet-Lake

 

[AgentBirdnest]

Also note that if you come across any benchmarks regarding idle power usage for the CPU only, AMD CPUs idle higher because they contain what's basically a chipset on the package. If you look at system idle power consumption, systems with either AMD or Intel parts tend to have similar figures

How is that possible? For the CPU to use more idle power, but not the total system?