Netac US11 128GB USB 3.2 + Type-C Dual Flash Drive $13 + $8 Shipping @ NotBadTech

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  ScoobyNZ on 04/08/2024 - 21:27

  Hi there.. un-related but can you suggest a good deal on RAM to use to upgrade a 2023 Dell XPS 9530. Currently running 16GB of RAM, I understand there's 2 slots so I could get 2 x 16GB or 2 x 32GB. I'm assuming it's running 2 x 8GB at the moment. Thanks!

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    Associatedinthiseconomy @ NotBadTech on 04/08/2024 - 22:30

    +1

    Cheapest 16GB DDR5 SODIMM we have is this.

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      ScoobyNZ on 05/08/2024 - 08:33

      Thanks. In opposing Cheapies fashion, I'm more concerned with performance over price. You have a 5200MHz option for the same price (which was originally a higher price) but with a different CAS latency… what does this CAS mean ? Would this offer increased performance over the 4800MHz option ?

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        Latex Fist on 05/08/2024 - 09:55

        +1

        CAS does have an impact. Think GHz vs clock cycles / MHz vs CAS sort of deal.

      • 

        Gractus on 05/08/2024 - 15:17

        +1

        There will be a slight edge to the 5200MHz kit but it will depend on whether your Laptop can actually run with that frequency.

        They're probably the same memory chips but with different default tuning. You could probably "overclock" the 4800MHz kit to 5200MHz while bumping the CAS latency, or drop the CAS latency of the 5200 kit but drop the frequency to 4800. That's probably why the price is the same.

        RAM doesn't just read and write, it's got a lot of different actions it has to do depending on how it's being accessed, along with general maintenance of keeping individual memory cells at the right voltage to count as a 0 or a 1.

        CAS is just one of those actions but it's too much to look at all of them when shopping. Many of them will depend on the motherboard and processor the RAM is paired with.

        The CAS action takes a certain number of cycles ("latency" e.g. 40 cycles), and the frequency is the number of cycles per second.

        You can balance higher latencies (cycle count) with higher frequency. Your "true" latency depends on both.

        If you need to go 1km and you're travelling 1km/h then it'll take an hour. If you need to go 2km and go 1km/h it'll take two hours, that's bad. If you need to go 2km but travel at 2km/h it still takes an hour, that's neither good nor bad.

        Higher frequency also brings higher bandwidth.

        Think of bandwidth as straight line horsepower, and "true latency" as handling. You need both to get actual performance.

        Between two kits with equivalent true latency, the higher frequency wins every time.

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          ScoobyNZ on 05/08/2024 - 15:28

          @Gractus: Thanks for your reply, made me check the specs. Looks like it can handle 4800MHz and 5600 MHz, however Dell's specs says that 5600 will still only run at 4800. So may as well just get the 4800 version. Thanks

          https://www.dell.com/support/manuals/en-nz/xps-15-9530-lapto…

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  Latex Fist on 05/08/2024 - 09:53

  +1

  Totally unrelated, but for an associated account with that username, pretty based.