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Patriot Viper Steel Series DDR4 16GB (2x8GB) 3733MHz PC4-29800 $125 Delivered @ Gadget Lifestyle via Amazon AU

660

Product code PVS416G373C7K
Timings 17-21-21-41

Saw Yuri Lowell' comment on the Ryzen 3600 deal. This one is just a little bit more but 3766MHz vs3600MHz, same CL17

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Comments

  •  

    What sort of speeds can you get with two of these kits (4x8GB) with x570 boards?

  •  

    I think people have been saying these are b-die? The sub timings are pretty horrible though.

  • +2 votes

    no rgb? :(

  • +4 votes

    The 3000mhz version of this (same link) is $103. which is also a good deal

  •  

    I just bought this Patriot Viper but was wondering if this is a better buy:

    https://www.amazon.com.au/Ballistix-Sport-PC4-19200-288-Pin-...

    These are Crucial Ballistix Sport LT 3000 MHz CL 15 but are sure to oc very well. $118
    Which is the better deal?

    •  

      I'd like to know the answer to this too ?

    • +1 vote

      I'm no expert on DDR4 but I'd probably still go for the Patriot kit.

      https://en.wikipedia.org/wiki/CAS_latency

      The 3733MHz CL17 kit is still faster than 3000MHz CL15 at stock.

      •  

        The amazon us review are not too good for this ram. Some of the units seems defective or doesnt run in advertised speed.
        I cancelled this and got the ballistix sports lt 3200mhz for 122 on umart instead[pick up]

        •  

          3733mhz is a high clock speed, you won't get advertised speed on zen/zen+ or intel without tweaks to voltages or not at all on some boards. This isn't a fault of the ram, it's well above the manufacturers specifications for every CPU on the market.

          It's an overclock kit.

    • +2 votes

      Crucial Ballistix Sport 3000 15-16-16 - Micron Rev. E

      • 3600 16-19-16/16-20-16 ~1.35v
      • 3600 14-19-14/14-20-14 ~1.45v
      • 3733 16-19-16/16-20-16 ~1.40v
      • 3733 14-19-14/14-20-14 ~1.50v
      • tRFC needs to be around 300ns

      Patriot Viper Steel 3733-21-21 - Hynix CJR possibly DJR

      • 3600 16-19-19/16-20-20 ~1.35v
      • 3600 14-19-19/14-20-20 1.45v-1.50v
      • 3733 16-20-20/16-21-21 ~1.40v
      • tRFC can go as low as 260ns

      Micron Rev. E can do tighter primaries but it needs looser tRFC, but other that that they're more or less the same.

      •  

        Which would you choose out of those two?

      •  

        I've got some Ballistix Elite 4000 that I'm struggling with on zen2

        I think it's micron e-die iirc. I can check Thaiphoon burner later.

        fclk does 3800, might do more but i stopped at 3800.

        I notice three numbers in your spec. What are you using for RAS or are you leaving it auto?

        Also, are you setting RFC or leaving it auto? Or auto first boot and squeeze down bit by bit?

        •  

          Yep the Ballistix Elite 4000 18-19-19 is Micron Rev. E.

          I notice three numbers in your spec. What are you using for RAS or are you leaving it auto?

          tRAS = tCL + tRCD(RD) + 2
          

          is the rule I follow.

          Also, are you setting RFC or leaving it auto? Or auto first boot and squeeze down bit by bit?

          I set the primary timings to something extremely loose and leave everything else on auto. I find the maximum stable frequency then start working down the primary timings and then the subtimings.

          tRFC on Micron Rev. E can only go down to ~300ns.

          All of this info can be found in my guide.

        • +1 vote

          Hi, can I ask where you got the Ballistix Elite 4000Mhz RAM from? Just curious if they were a good price as I am interested.

          •  

            @Ice009: FB Marketplace, used. Price was pretty good.

            •  

              @drew442: Hi, thanks for the reply. I don't suppose there was any more similar kits on there? Also, when buying from FB Marketplace, do you only ever buy stuff you can pick up in person, or is it safe to buy items posted?

  •  

    Just bought the 3600x from previous deal. would this be a good ram option for it?

    •  

      Yup, amd themselves said that 3733mhz is the sweet spot for Zen 2 CPU. Any higher and the infinity fabric clock will half itself to compensate. So if plan to OC, just work on tightening the timings but keep it at 3733mhz.

      •  

        What does 'tightening the timings' mean?

      •  

        Any higher and the infinity fabric clock will half itself to compensate.

        Not true.

        I'll quote my post over at Whirlpool forums.

        Nope. UCLK will automatically drop to half MCLK if you don't manually set UCLK:MCLK ratio to 1:1. This will also happen if FCLK:MCLK isn't 1:1. Going by the chart provided by RedSector above, DDR4-3733 (1866MHz MCLK) is the last point where MCLK, FCLK and UCLK will be automatically synchronised. Running DDR4-3800 (1900MHz MCLK) without manually setting FCLK and UCLK will result in 1866MHz FCLK and 950MHz UCLK I think.

  •  

    Is this still available at this price? The link only shows one store at $257.