what speed/size should i get.

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8bitgamer8

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Jul 23, 2014
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first what is the most ram any game uses currently?
second could you give me an estmite on what you think will be being used in 5 years?
im looking at ddr4 memory the latancys on ddr4 seem a lot higher then ddr3 equivalents right now. is 16 GB 2133 fast enough or should i move up to 2400. or 32 GB




 
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babernet_1

babernet_1

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May 8, 2012
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It is my understanding, that some of the latest games are just suggesting more than 8GB. I would think 16GB will be enough for many years into the future. DDR4 clock speed is very fast. The latency is more important. Get the fastest CAS that is reasonable. (12ns)
 
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Shaun o

Shaun o

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Oct 7, 2007
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Bit of a broad question.

How much system memory a game can use up depends on the company that makes the game, when producing it.
You can expect to be able to run most current games with about 8Gb of system memory as it currently stands.
Although there are a few games due this Xmas that will benefit from having more system ram, but will still work with 8Gb of system memory that is about standard with most systems be them self built or pre built by such companys as Dell, Hp, or Toshiba.

By about late 2016 on wards to 2017 you can expect most systems to come with at least 16Gb of memory as a standard requirement. I would expect it to become about the minimum memory configuration most pre built, or self built systems to have.

When memory runs at a faster speed there has to be a trade off in order to keep the correct timing values in synchronization between the memory chips, and the memory controller of a motherboard and the cpu.
Higher latency values basically slow memory down.

Even if you look at DDR3 memory you will notice that the higher speed rated memory of DDR3 in Mhz also leads to Higher latency timings.

The latency timings ensure every bit of data that is written and read from system memory via the cpu is synchronized so there are no errors.

One of the most important things about memory is how wide the data bus is.
The wider the data bus the more data you can send in on clock cycle or operation of a read and write request of the memory.
In effect you process a larger amount of data in less time.
Until the bus, or bandwidth of memory changes from 128 bits wide to something like 256, or 512 bits wide you will see more improvement in the speed of memory over it`s higher frequency of Mhz values and the negative effect of higher latency timings of it.

It is why when you look at graphics cards for example you will notice that the bus width in bits is higher from 256bits wide up to 512 bits. when the cards use GDDR 5 memory ect.
 
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