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ram question about speed.
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ram question about speed.Posted:

Bunziix
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So I've been browsing the tech game for PC builds and I've seen so many people will show builds that have a 2 x 4gb ddr3 1600 ram for around $80 but why not get corsair vengeance 1 x 8gb ddr3 1866 ram because it has a higher speed 1600<1866 and its 1 x 8gb so you can get the most ram out of your slot for the money because this is only $63 compared to the $80. If I am not looking at this right or if I am not reading the right thing tell me please. Thanks
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It's better to use dual channel memory when you can. It's safer as if one stick of RAM fails, it's cheaper to replace. Speeds, latency, brands and timings make minimal difference when it comes to RAM, unless you have an APU which will benefit from higher speeds. Just get whatever is cheapest and match your builds. Some motherboards have only got 2 RAM slots, in that scenario, it would be wiser(IMO) to get 1x8GB RAM as it gives you ugradability, and getting 2x4GB would just be shooting yourself in the foot. However, if you have 4 RAM slots, grab 2x4GB as you an still easily upgrade to 16GB RAM if you ever need to.
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Bunziix
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Thank you I understand now
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r00t
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The theoretical data rate is multiplied by the number of channels due to striping, but for most tasks, the speed of a single channel is enough.
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Colombia
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r00t wrote The theoretical data rate is multiplied by the number of channels due to striping, but for most tasks, the speed of a single channel is enough.
Can you explain it better for me (Newb) and those that have no clue what that means?
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r00t
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Colombia wrote
r00t wrote The theoretical data rate is multiplied by the number of channels due to striping, but for most tasks, the speed of a single channel is enough.
Can you explain it better for me (Newb) and those that have no clue what that means?

I have a file. I could write the whole file to one RAM circuit and how long it would take is determined by the max write speed of that one circuit. If there is another identical RAM circuit available, I can divide the file into two parts and write one to each RAM circuit at the max write speed. It will take half as long. If there are three RAM circuits, I can divide the file into thirds and it will take a third as long as it would with one circuit.

The concepts that apply to RAID with hard drives also apply to RAM. This is like RAID 0 for RAM.
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