I am interested in the new i9 12900, for the performance but I also wanted a chip that uses less power. I note there is a 12900T which uses less power, is this likely to be the case in reality? Is it worth getting the T variant over the normal or even K variant? Thanks.
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i9 12900 vs i9 12900T
- Thread starter gupott
- Start date
Soldato
Get the 12900k and power limit it to whatever watts you want it to work at. It's the better bin out of those 3, which means at same wattage the 12900k will perform better.
Thanks for the reply. I assume I can do this in the Bios?? I have not done that previously, so I would need to read up.
Soldato
Yes, you so it in bios, it takes like 5 seconds
Generally speaking, if you run at the non-turbo frequency (base clock) of the K model, you'll be well within the efficiency window of any architecture, but you can limit the permitted power envelope PL1/PL2, as said above, or you can change the turbo ratios.
As for the T models and using less power, it partly depends what you want and what you're doing. Most loads on a computer are finite loads and getting them done quicker with a stronger CPU, is often better than using a power-limited CPU that takes longer. On the other hand, if you're doing an infinite load like gaming, then hard-limiting the CPU is going to save you energy. The L and T models are usually used where it is important that they don't exceed what power and cooling is available to them, e.g. in SFF builds, all-in-one PCs and NAS systems. For a desktop, you can just get a normal CPU and limit it. If you're desperate to save power, depending on the workload in question, the 12900 is probably not the CPU for you.
As for the T models and using less power, it partly depends what you want and what you're doing. Most loads on a computer are finite loads and getting them done quicker with a stronger CPU, is often better than using a power-limited CPU that takes longer. On the other hand, if you're doing an infinite load like gaming, then hard-limiting the CPU is going to save you energy. The L and T models are usually used where it is important that they don't exceed what power and cooling is available to them, e.g. in SFF builds, all-in-one PCs and NAS systems. For a desktop, you can just get a normal CPU and limit it. If you're desperate to save power, depending on the workload in question, the 12900 is probably not the CPU for you.
Soldato
"I'm interested in a powerfully-performing CPU, but don't want excessive power usage".
Sounds like you need to hang on for a couple months and get a Ryzen 7000, mate.
Sounds like you need to hang on for a couple months and get a Ryzen 7000, mate.
Soldato
The T variant absolutely won't be what you want. Get a 12700 if you're committed to the Intel option, but want to save some power.
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These seem to be OEM only, so you might have to buy via an auction site at a premium due to scarcity.
Check that the board you are choosing lists this as being supported.
They might be binned for low voltage performance, but how much better they will be than an i9-12900 that is under-volted and power restricted is hard to say.
Check that the board you are choosing lists this as being supported.
They might be binned for low voltage performance, but how much better they will be than an i9-12900 that is under-volted and power restricted is hard to say.
dont spend an extra £100 on the K chip just get the 12900 and power limit it. or buy a equal performance Ryzen chip.
the 12900 docent use the power people are saying it dose, when the K chip is overclocked to max and running stress tests i as high power peaks but in gaming and so on the usage is much lower. but AMD is again lower
nope the T chip gets the better bined power usage chips so that it can hit the needed power limits. the K gets the better bined clockers that why the power draw is so high.
Soldato
The T is binned for 35w. Are you going to run it at 35w? I assume not.
Would that not mean the core a better with less power and heat. When you lift the cap a little it could give you a lot??
Ever way I wouldn't buy a K and then run it at a caped wattage. That said lots of people have had good results under volting K chips to hold boost better with less heat... but that would be buying a K to push not hold back