Max RAM speed you buy is based on WHAT??

[RaputerXpert]

Is the max ram speed based on mobo or CPU's clock?

 

Motherboard is the “GIGABYTE X470 AORUS ULTRA GAMING” an AMD AM4 board.

Currently, use a 2700X, but plan to upgrade to 5800X/5800X3D or even Ryzen 9 5950X.

I am using a 3060 ti video card.

 

Therefore, what is the max speed ram I can buy, that's compatible, with this motherboard?

 

[RONOTHAN##]

1 minute ago, RaputerXpert said:

Is the max ram speed based on mobo or CPU's clock?

Combination, it will be the max speed that both the board and CPU support. 

 

With an X470 board and a Ryzen 3000/5000 chips, 3600MT/s should be possible, though realistically with a 5800X3D there isn't much point in going for fast RAM since the 5800X3D doesn't really care about RAM speed at all.

[jaslion]

Basically ryzen at stock does best with 3600mhz ram (preferably also try to get cl16 or lower).

 

Its a combination of all parts to get it to work.

 

for example corsair lpx ram plays terribly with ryzen and isnt a good buy. 400 series and later boards have an easier time setting higher ram clocks and later ryzen have far better memory controllers basically guaranteeing you get at least 3600mhz ram speeds.

[SupaKomputa]

The cheapest most overclockable!

Look for samsung 2400-2666 mhz modules.

The older the better (chance to get a cheap B-Die).

[PDifolco]

30 minutes ago, RaputerXpert said:

Is the max ram speed based on mobo or CPU's clock?

 

Motherboard is the “GIGABYTE X470 AORUS ULTRA GAMING” an AMD AM4 board.

Currently, use a 2700X, but plan to upgrade to 5800X/5800X3D or even Ryzen 9 5950X.

I am using a 3060 ti video card.

 

Therefore, what is the max speed ram I can buy, that's compatible, with this motherboard?

 

3600MT is the usual best AM4 spot, as the IF can't go much faster than that, so faster RAM don't give you much since RAM and IF aren't in sync anymore

[BiotechBen]

4 minutes ago, PDifolco said:

3600MT is the usual best AM4 spot, as the IF can't go much faster than that, so faster RAM don't give you much since RAM and IF aren't in sync anymore

Agree. Best for CPU is 2x F-clock, board is dependent on BIOS version for above JEDEC 2133/2666MT/s

[Somerandomtechyboi]

1 hour ago, SupaKomputa said:

The cheapest most overclockable!

Look for samsung 2400-2666 mhz modules.

The older the better (chance to get a cheap B-Die).

2133 bin bdies i think those are trash bins, not as good as youd find in 3200c14 even since bdie is rather inconsistent so theres top tier bins and theres absolute piles of shit

 

For samsung youd either be looking at 4gbit e die (4x4 single sided or 2x8 dual sided dimms) or 8gbit d die (8gb single sided, 16gb dual sided though i dont think they made many dual sided ones)

 

Actually im quite unsure if samsung is better than micron here cause with micron (in the form of crucial bare pcb 2666c19) you can get c9bjz (highest 2666 rev e) which should clock to about 5000 or d9wfr rev j, apparently better than rev e in the one ocn thread its featured on but thats vs lowbin 2400 d9vpp, though rev e is trash at trfc so i think if you arent using the speed better off just going with cjr or djr as those should do tighter trfc, guaranteed on klevv 3200c16 and 3600c18 bin cause klevv is a subsidiary of hynix, not sure about the lowbin bare pcbs though since cjr/djr is also not that consistent of an ic i think, djr clocks higher than rev e but youd have to be pushing >5000 before desync fclk is worth it, and 5800x3d doesnt care about ram speed so not worth it, maybe on the other ryzens since infinity fabric only clocks a measly 3800-4000 most of the time. 3600c18 klevvs should do 4800 with ease though i wouldnt expect much more than 5200

 

 

particularly wanna focus on trfc, trc, tfaw, and trrd-l/s capabilities as those seem to impact performance the most, i think tertiaries are mobo related than ram ic related but im not that knowledgable yet, secondaries and (mostly irrelevant) primaries are definitely dependant on the ram ics though. And also dont dump volt into cas, really isnt worth it since it starts exponentially gobbling volt for rather meager gains at best in latency (<1ns drop per drop in cas atleast at 3200, realistically a dual rank dual sided 2 stick or 4 single sided stick is best cause dual rank so 3800 ish is the most you are gonna get, besides infinity fabric only goes to 3800-4000), primaries contrary to their naming are not used as much as the secondaries or tertiaries (except maybe trcd on intel) hence they have less performance benifit, doesnt mean theyre not worth tightening but definitely not worth dumping tons of volt into

 

 

I assume you arent interested in ram tuning so go get 3200 cl16 or 3600 cl18 since 5800x3d dont scale much from ram speed, also dont waste money on bins like 3600 garbage non bdie cl16 (16-18-18 or any other terrible variants of it) cause cas again dont do crap esp at such slow speeds, and bdie bins (3200 14-16-16, 3600 bdie 16-16-16, 4400 19-19-19, etc.) even though not trash are still a waste cause its a 5800x3d it dont give a crap about ram speeds past 3200, the other ryzens will benifit but bdie is just really expensive for that few % gain when tuned vs properly tuned cjr/djr

[Applefreak]

1 hour ago, RaputerXpert said:

Is the max ram speed based on mobo or CPU's clock?

 

Motherboard is the “GIGABYTE X470 AORUS ULTRA GAMING” an AMD AM4 board.

Currently, use a 2700X, but plan to upgrade to 5800X/5800X3D or even Ryzen 9 5950X.

I am using a 3060 ti video card.

 

Therefore, what is the max speed ram I can buy, that's compatible, with this motherboard?

 

Supported by the CPU and the motherboard. 3200 or 3600 (better) will do just fine. Higher rated modules may need manual adjusting to work. Check your motherboards manual for official supported frequencies.

[Mark Kaine]

Typically superstition it would seem like. ie: "higher is surely better...!"

 

23 minutes ago, Applefreak said:

Check your motherboards manual for official supported frequencies.

*and officially supported ram modules also = )

 

1 hour ago, Somerandomtechyboi said:

3200 cl16 or 3600 cl18 since 5800x3d

i did a bit of testing actually, superposition 1080p high, cbr23, aida64... 2133mhz (default) 3200mhz (cl14) 3600mhz (cl16),  all in the margin of error *no* noticable differences,  the only thing that changed slightly was latency test in aida.... and not by much! 

oh and in a few games i tested also like 1fps difference,  but 3600mhz feels ever so slightly more responsive,  i guess that's a sweetspot for pretty much any ryzen (of newer am4 gens)

[SupaKomputa]

1 hour ago, Somerandomtechyboi said:

2133 bin bdies i think those are trash bins, not as good as youd find in 3200c14 even since bdie is rather inconsistent so theres top tier bins and theres absolute piles of shit

 

For samsung youd either be looking at 4gbit e die (4x4 single sided or 2x8 dual sided dimms) or 8gbit d die (8gb single sided, 16gb dual sided though i dont think they made many dual sided ones)

2133 is super old. i rarely got a b-die nowadays, mostly C or D, got a c-die 16gbx2 for only $80 (cheap backthen), the sellers (an overclocker too) guaranteed 3600, all good to me. spending for a c14 will just spoiled the fun.

[Brooksie359]

2 hours ago, RONOTHAN## said:

Combination, it will be the max speed that both the board and CPU support. 

 

With an X470 board and a Ryzen 3000/5000 chips, 3600MT/s should be possible, though realistically with a 5800X3D there isn't much point in going for fast RAM since the 5800X3D doesn't really care about RAM speed at all.

I mean the ram speed was a big deal with ryzen cpus due to it being attached to the infinity fabric speed. That being said not sure if that matters to the 5800x3d as I think it's only a single  chiplet?

[freeagent]

3200-3600C14 and you are set