Windows 8 and 8.1 Forums


How RAM/ SSD can speed up HDD write/ read speed?

  1. #11


    Posts : 34
    Wind 7 Home Premium 64 Bits/ Win 8 64 Bits


    Hi - you are correct. I am keeping the HDD as a storage drive and maybe chuck some low end games in it whilst the Intel SSD will be used to store the Windows drive and all apps. But then, maybe getting a WD Black to replace the existing drive -----> (2.5 inch, 16MB Cache, 7200 RPM, 500GB).

    By the way, what is the advantage of getting additional RAM? Currently, my system comes preinstalled with a 4GB RAM. It has 2 slots and one of it has been taken by a 4GB RAM. Thinking of getting an additional 4GB or 8GB of RAM. Also, which RAM is better? 1333MHZ or 1600 MHZ???

      My System SpecsSystem Spec

  2. #12


    Adelaide
    Posts : 1,338
    Windows 7 Ultimate SP1 (64 bit), Linux Mint 17.1 MATE (64 bit)

    Is that formula correct?


    Quote Originally Posted by jimbo45 View Post
    So % improvement is (5400/7200) * 100% = 75% so your AVERAGE improvement would be 75% by fitting a faster disk -- as it would have a better cache too the improvement would be even more dramatic.

    A 10,000 RPM disk would yield even better improvement.
    Higher RPM should give better performance, but I'm not sure that formula is right.

    Shouldn't it be (7200/5400) * 100% (i.e. a 33.33% improvement)?

    Using your example:
    5400 = 0.000185s
    7200 = 0.000138s
      My System SpecsSystem Spec

  3. #13


    Quote Originally Posted by cheesum View Post
    By the way, what is the advantage of getting additional RAM? Currently, my system comes preinstalled with a 4GB RAM. It has 2 slots and one of it has been taken by a 4GB RAM. Thinking of getting an additional 4GB or 8GB of RAM. Also, which RAM is better? 1333MHZ or 1600 MHZ???
    More RAM means more memory to open up additional apps without having to use the swap space on the hard drive (hard drive is far, far, far more slow).

    Having 2 sticks will give you dual channel, which will offer a small performance boost. Probably 2-5%.

    As far as speeds go, you will have to see what your system currently runs at. If you put in a faster stick, but your first stick is slower it will run at the slower speed. In addition, systems run at a default speed. Overclocking is usually the only way to get to those faster speeds.

    If it's the system in your system specs , (Lenovo IdeaPad Y580), the max listed is 8GB of RAM, however forums show people able to run 16GB.
      My System SpecsSystem Spec

  4. #14


    Posts : 34
    Wind 7 Home Premium 64 Bits/ Win 8 64 Bits


    Hi - thanks for the fast reply. Yup - mine is a Lenovo IdeaPad Y580. Since there are 2 slots for RAM and 1 slot has been taken with a 4B RAM stick, i am planning to get a 8GB for the second slot. Do you see any problems with doing this? With a 4GB + 8 GB combination?
      My System SpecsSystem Spec

  5. #15


    Sloe Deth, Californicatia
    Posts : 3,908
    Windows 8 Pro with Media Center/Windows 7


    I have a 5400 1 TB I use for Storage Only, but that was all I needed it for.

    That's a REAL GOOD Price for that 1 TB Barracuda/7200 RPM. 74 bucks? Usually those are more like $120 bucks.
      My System SpecsSystem Spec

  6. #16


    In theory mixing RAM sizes should work but it doesn't always work that way in practice. For best results RAM modules should be the same manufacturer and specs.
      My System SpecsSystem Spec

  7. #17


    Posts : 34
    Wind 7 Home Premium 64 Bits/ Win 8 64 Bits


    Quote Originally Posted by LMiller7 View Post
    In theory mixing RAM sizes should work but it doesn't always work that way in practice. For best results RAM modules should be the same manufacturer and specs.
    Hi....given that the first slot is occupied by a 4GB RAM, hence does that mean i should get a RGB RAM by the same manufacturer? Basically, with all the same specs with the factory supplied stick of 4GB RAM?
      My System SpecsSystem Spec

  8. #18


    Usually RAM of the same specs will work. But not always. Your best assurance of trouble free operation is to use matched RAM modules from the same manufacturer. The only way to tell if different modules will work is to try it.
      My System SpecsSystem Spec

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How RAM/ SSD can speed up HDD write/ read speed?
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