System Memory Specification 2933MHz vs System Memory Specification 2667MHz

[hi-there]

hi guys,

I'm tryin to figure out what does it mean in practice that (I read about/googled this online but no matter what I've found I couldn't understand it):

1:

Ryzen 5 2600X has System Memory Specification 2933MHz

vs:

Ryzen 7 1700X System Memory Specification 2667MHz

and 2:

how does this relate to (e.g.) Asus ROG Strix X470-F Gaming mobo that can be matched with:

4 x DIMM, max. 64GB, DDR4 3600(O.C.)/3466(O.C.)/3400(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz unbuffered

regards,
K.

 

[Doctor Rob]

1. the memory spec is just the native speed they support. anything over that it has to be supported by the motherboard. think of it like there is a speed governor on the CPU that lets it go to a specific speed. BUT when you get to #2 they add a new governor that lets you use the motherboard to determine the speed instead of the CPU. Most motherboards add the extra chip (built into them) to be able to set the ram at a higher speed.

The Ryzen 2 vs Ryzen 1 just have better ram support for faster speeds and are not as finicky about the ram when you want to run at the rated speeds. like for example I have a Ryzen 7 1800X and I run CL14 (g.skill) ram that is rated at 3200Mhz and on my 1800X with the asrock X470 tachi board I run it at 3333Mhz without changing the rated cas latency specs or adding more voltage.. but the ram I use is much more expensive then slower 2666Mhz CL 16 ram and such.. if I had a Ryzen 7 2700X cpu (almost the same as what I have but a little faster) I could have probably went with some cheaper 3200Mhz CL14 ram and still get the same overclock speed without issue as the newer 2 version of the CPUs can handle the ram better normally.

For the most part Ignore the CPU rated memory specs.. and go with the motherboard AND quality ram.. like the G.skill Flare X 3200 Mhz CL 14 ram..

IF you mainly plan to Game and choose one of the above.. go with the Ryzen 5 2600X.. IF you plan to multitask.. the Ryzen 7 1700X is better.. (but both are super close)

Edit: Just for reference I have ASRock X470 Taichi motherboard and its great. the ASRock boards are darn nice for the Ryzen CPUs. (this one also has wifi built into it.. the ASRock X470 Taichi Ultimate has 2 nic cards and wifi as well.. the 1 Gigabit and 10Gigabit nic cards.. So if you plan to move a lot of data and have the equipment.. the ultimate is better for that being it has up to 10X the speed (if you have the other stuff needed like the 10Gigabit router / switch)..

 

[hi-there]

hi (Doctor ) Rob,

so numbers/speed of what I'm asking in '1' actually does not matter at all as most mobo's do run at much (OC) higher volumes? - HAA!!...now I've seen it all

I was assuming something completely different (that the higher the system memory specification the better 'flow' of speed between components) - but now I know better

I have just returned 2x8GB Corsair Vengeance LPX DDR4 3000MHZ as I have found out that it was vers.5.32 and I think that I will go for something different now...

it's not gonna be a gaming rig (well...20% gaming - and I'm not talking about online gaming or anything major or game-demanding) but just good (fast; Samsung 970 EVO and some good 16GB ram) and reliable all-arounder for everything else (incl.Vestax VCI-400 USB/MIDI DJ Controller)

they are close and it's a pain in the *** if You ask me 8 vs 6 cores sounds a lot better but...base clock and max boost is around 200 or 300GHZ higher with XFR on, on 2600X; 1700X L2 cache 4MB vs 2600X 3MB...I just can't pick the winner between those two...and yes...- they cost the same (which makes everytning mmuucchhhh easier...- NOT )

regarding mobo:

- I just want a good/solid one...wi-fi and all the RGB etc. in the world = 0 interest from my side...good components and good vrm is what I'm looking for (for a reasonable price - meant: as low as possible and that's why I'm looking at things like Asus ROG Strix X470-F Gaming - I prefer X470 but there are a few good B450 as well but since the price difference between a good B450 and X470 is what I CAN live with I prefer X470...I know that you get - most of the times - what you pay for but Taich is a bit too expensive for me...)

regards,
K.

 

[Doctor Rob]

if the cost is the same get the newer 2600X cpu and an B450 or X470 board (X470 if you can swing it and plan to do any overclocking and they also normally have more power regulators (meaning less heat and better stability). I do see a few places sell the 2600X with the Asus ROG Strix X470-F board you are looking at for a few $$ savings (like on newegg.com if you are in the US at least)

You can also push the 2600X cpu more then the first Gen with faster ram support / stability if you plan to do that.

Now with that said.. IF you mainly plan to do things that need a lot of CPU cores the 1700X is better. but both are super close..

 

[hi-there]

I have already bought 1700X but I'm 75% sure that I will be returning it (in favor of 2600X...I just can't see when and how I ever be needed 8 cores - so I might as well get those extra 2-300Hz out of the 2600X)

it would be nice to see updated vers. of Ryzen DDR4 memory compatibility list (the only one I can find is this one from June 2017: https://www.amd.com/system/files/2017-06/am4-motherboard-memory-support-list-en_0.pdf )

it's gonna be either:

- better ram (2x8GB 3200 cl 14 or cl 16) + B450 (something like: ASUS ROG STRIX B450-F GAMING or most probably: MSI B450 GAMING PRO CARBON AC )

or 2x8GB 3000 cl 16 + X470 ( Asus ROG Strix X470-F Gaming )

no neweegg.com for me...I'm from Scandinavian