[SOLVED] Beginner here ——— which ram to use with i9-12900k ?

[Kevin_debruyne]

ok first i dont want to know differece between MT/s and Mhz if its too mathmatical . Intel official website says maximum ram dd5 ram support is Up to DDR5 4800 MT/s . Does that mean maximum ram supported is 4800 mhz ?. and beyond that its just backward compatible and will work in 4800mhz speed max ?. but i have seen benchmark where ddr5 6400 mhz is used and gained about 15 fps more. so i dont know which ram to use and what is the maximum ram supported.

 

[SkyNetRising]

What model motherboard?

 

[Fix_that_Glitch]

What motherboard are you getting/have? It will determine up to what speed memory it will run for your 12900k. Then once you pick a speed (mhz), you will have to determine at what latency you will be comfortable running knowN
as CAS.

 

[drru.zip]

ok first i dont want to know differece between MT/s and Mhz if its too mathmatical . Intel official website says maximum ram dd5 ram support is Up to DDR5 4800 MT/s . Does that mean maximum ram supported is 4800 mhz ?. and beyond that its just backward compatible and will work in 4800mhz speed max ?. but i have seen benchmark where ddr5 6400 mhz is used and gained about 15 fps more. so i dont know which ram to use and what is the maximum ram supported.

I would recommend Corsair ddr5 RAM, either Vengeance or Dominator. When it comes to the MHz, just make sure it's at least 4800mhz if you want full utilisation. It don't matter if its 4800, 5600 or 6400 since the cpu can only use 4800. Im using a I9-12900kf with Corsair 5600 MHz and it only uses 4800 since the cpu don't support more.

 

[geofelt]

The ram speed supported is the speed at which the motherboard will boot allowing you to specify a higher number via xmp.
All ram will run at a default speed to let you get into the bios.
The motherboard specs will indicate how high you can overclock ram.
Ram that is faster than minimum will be technically overclocked ram.

Do not overly fixate on ram speed unless you are an overclocker looking for record level performance.
Today, there is minimal performance difference between DDR4 and DDR5.
DDR5 ram speeds look impressive, but it is accompanied by much higher latency which negates some of the benefit.
If budget is an issue, look at a DDR4 based mobo and ram.

I9-12900K is just so competent that you really do not need to do anything special to have a very fast system.

 

[Kevin_debruyne]

What motherboard are you getting/have? It will determine up to what speed memory it will run for your 12900k. Then once you pick a speed (mhz), you will have to determine at what latency you will be comfortable running knowN
as CAS.

MSI pro wifi. it says ddr5 upto 6400 mhz. but intel website says 12900k support upto 4800mhz.

 

[Kevin_debruyne]

I would recommend Corsair ddr5 RAM, either Vengeance or Dominator. When it comes to the MHz, just make sure it's at least 4800mhz if you want full utilisation. It don't matter if its 4800, 5600 or 6400 since the cpu can only use 4800. Im using a I9-12900kf with Corsair 5600 MHz and it only uses 4800 since the cpu don't support more.

there is xmp which overclock the memory upto 6000 mhz it depend upon motherboard.

 

[SkyNetRising]

MSI pro wifi.

Not a full model name.
We still have no idea, what motherboard you're talking about.

 

[geofelt]

What is the full name of your motherboard model?
Go to the web site for that motherboard.
Under the support tab, there will be one for ram. That is also called the QVL list.
It lists all of the ram kits that have been tested and found ok.
If you buy a kit on that list, you will be compatible and supported.
Not all existing ram has been tested.
For ram you are considering, go to that ram vendor's ram selection app.
Enter your motherboard(and possibly cpu).
You will get a list of ram that the vendor supports on that motherboard.

Intel, as opposed to Ryzen, is not particularly sensitive to ram specs.
Nor, for that matter is Intel performance much dependent on ram speeds.
(Yes, there are a few exceptions)
So long as you get the DDR4 vs. DDR5 selection right, you are likely to be ok.

 

[Fix_that_Glitch]

I would recommend Corsair ddr5 RAM, either Vengeance or Dominator. When it comes to the MHz, just make sure it's at least 4800mhz if you want full utilisation. It don't matter if its 4800, 5600 or 6400 since the cpu can only use 4800. Im using a I9-12900kf with Corsair 5600 MHz and it only uses 4800 since the cpu don't support more.

If you use xmp in your bios you can set your memory to 5600mhz. The 12900kf supports just about any DDR5 memory you can throw at it. The only limiting factor is the motherboard bios for memory speed