AMD Ryzen 7000 (Raphael) Will Support DDR5-5200 as default

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Apr 27, 2022.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    Maddness and Undying like this.
  2. Kool64

    Kool64 Maha Guru

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    Nice. Now we just need that over 9000 ram and we'll be good to go.
     
  3. Jujubee

    Jujubee Active Member

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    I understood that reference.
     
  4. Silva

    Silva Ancient Guru

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    Epic reference.

    That said, timings coming down will be a major achievement for DDR5 performance.
     
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  5. cucaulay malkin

    cucaulay malkin Ancient Guru

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    cl80
     
  6. Kaarme

    Kaarme Ancient Guru

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    In my opinion it's a good decision to go purely for DDR5. I wouldn't use anything else with a next gen CPU that can use DDR5, even if it still supported DDR4 as well. However, that's just my preference, AMD ought to be more concerned about how it works financially. Apparently Intel decided it would be bad for the business. But Alder Lake was released when DDR5 was much newer tech and availability poorer, so it makes sense. Even though I still wouldn't have built a DDR4 Alder Lake system.
     
  7. mohiuddin

    mohiuddin Master Guru

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    Only if we could get 8GBX2 DDR5-7000 cl 20 for 50$......
     
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  8. schmidtbag

    schmidtbag Ancient Guru

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    I wouldn't build a new high-end system with DDR4, but an Alder Lake on an i5 or worse is totally fine and makes sense for those on a budget.
    I personally intend to go DDR5 next, where hopefully RAM prices and latency will go down a bit by the time I do.

    What I could really use though is a new GPU. It's going to be really stupid if my R9 290 ends up carrying me through 3 generations. I'm ready to upgrade but I'm not willing to spend these inflated prices.
     
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  9. Witcher29

    Witcher29 Maha Guru

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    On the long run everything above 3600 mhz can be unstable. All these fast ddr4 or ddr5 are great on paper but when u actually run it for a long time u want stability not fast speeds and random bsods. Like it might run fine for awhile then suddently get bsods. No thanks.
     
  10. reix2x

    reix2x Master Guru

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    Why over such a particular speed?
     

  11. Kool64

    Kool64 Maha Guru

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    you'd probably make out like a bandit with an AM5 APU at that point.
     
  12. user1

    user1 Ancient Guru

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    not surprising, on the current cezanne chips 4600-4800mt/s is doable in 1:1 mode so pushing a few hundred mhz faster should be trivial on a newer process like 5nm
     
  13. icedman

    icedman Maha Guru

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    Maximum I've been able to get stable on a b-die kit is 4200 IF clock on these chips if I'm not mistaken tends to max out around 2200 sometimes more if you're very lucky that beingsaid mine is a 5600g so bot top tier silicon.
     
  14. user1

    user1 Ancient Guru

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    i also have a 5600g , using micron 16gb rev b. sticks 4600mt/s is doable with <1.3v soc, its possible to get 4800mt/s working with 1.35v soc, the memory ratios above 4666 are flaky and some broken ,the cldo_vddp voltage can help.
    the highest speed in 1:1 mode ive been able to get into windows at was 4933, but it requires rather high soc voltage 1.375v, not for daily operation unless you had water cooling, the max soc on cezanne is a bit of an open question, on the one hand 1.3v is 100% safe that comes from amd afaik, but the motherboard doesn't start complaining until you enter at least 1.4v which indicates the value set by asus. benching with with >5000mt/s in 1:1 mode is not unheard of on these chips with unsafe voltages >1.4v

    if your b die is dual rank it will limit the max speed, also the a2 pcb layout helps alot at high speeds

    the newer micron ics are also simply beastly, i bought a 3600mt/s cl 16 32 gb kit , and it does 4600mt/s cl 18 with 1.45v passes 1000% hci.

    i dont think my 5600g is anything special, given that hilbert was able to do 4533mt/s on a much better motherboard with single rank b-die on the older renoir chips (4650g).

    i would say the absolutely worst cezanne apu should do at least 2133mhz fclk with 1.2v soc, since thats what the chip is designed to support (4266mt/s lpddr4 on mobile versions)

    if you want to see if the memory is limiting you, you can always try setting the fclk higher than the memory clock, this will put you in async mode, but it will give you and idea of how high the fclk can really go.
     

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