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How Does the RAM Speed of My Computer?

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How Do RAM Speed and Timing Affect the Performance of My Computer?

More is better when it comes to computers. I guess, sort of. Most consumers are aware that a CPU with a higher megahertz or gigahertz speed is preferable. Similarly, it goes without saying that having more RAM (also known as gigabytes of memory) is a desirable thing. However, you might be perplexed by another stat related to your RAM: speed.

What does your RAM’s speed rating actually signify, then? The solution is straightforward, but the actual implications for the performance of your system are subtle. Briefly stated, it’s probably not as important as the RAM manufacturer would have you believe.

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Meaning of RAM Speed Ratings

Your RAM module’s data transmission rate is indicated by its speed rating. The greater the speed of the number, the more quickly your computer can store and retrieve data from local memory.

Depending on the version of DDR memory that your computer is using, the formula for the precise speed rating changes slightly. It now consists of a number of hardware components rather than being just an expression of clock speed, like a processor. Faster is preferable, though, in general. Pretty basic, yes?

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The nomenclature starts to become complex. Although the speed rating is typically stated in simple “DDR” terms, the outdated PC2/PC3/PC4 standard is still in use. These numbers often correspond to the generational standard’s speed rating: “DDR3 1600 RAM” is also referred to as “PC3 12800,” “DDR4 2400 RAM” is also referred to as “PC4 19200,” and so on.

One byte equals eight bits in this technicality based on the outdated bit and byte data expression. Therefore, if the first number is DDR 1600, which is expressed in millions of bits per second, the second number is PC3 12800. It is two different ways of saying the same thing because 12800 divided by 8 is 1600. In general, things will be simpler.

RAM Timing Definition

Each RAM module also has a timings rating in addition to the regular speed ratings. Four numbers are used to represent this, such as 5-5-5-15 or 8-8-8-24. This discussion of the precise time it takes the module to access individual bits of data across columns and rows of the memory array involve some advanced computer science topics. However, for the sake of simplicity, this group of figures is typically referred to as “latency.”

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The faster the RAM module can access its own hardware, or latency, the better in this particular situation. Lower latency results in quicker data access, quicker data transfer to the CPU, and quicker overall computer functioning. Lower latency is a benefit of more expensive, higher-quality RAM, and enthusiasts can increase both this rating and the RAM’s clock speed.

Despite this, the differences in latency are so negligible that you’re unlikely to notice any substantial differences between RAM with a greater or lower latency unless you’re performing industry-level server operations or numerous virtual machines.

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What Does This Do for My PC, though?

In all honesty, it doesn’t signify much. Even though faster, lower latency RAM will improve your computer’s technical performance, it operates at such a fundamental level that it is nearly impossible for us mortals to actually notice the difference.

Does it really matter which one you ask if one can calculate the odds of survival in one billionth of a second and the other takes two billionths? It’s like comparing Data from Star Trek and C3P0 from Star Wars.

While having quicker RAM will improve your PC’s speed in some benchmark tests, for the majority of users, having more RAM available is nearly always preferable. So, whether you’re deciding between buying 16GB of DDR4 RAM with a speed rating of 2400 or 8GB of DDR4 RAM with a speed rating of 3200, always choose the latter. Additionally, it implies that it is infrequently worthwhile to overclock RAM in the system BIOS.

Particularly in the case of gaming. Games will primarily rely on the video card’s own memory (labeled as “GDDR,” specifically designed for visual applications) if your computer has a discrete graphics card to handle these functions. Given that your graphics card is

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Games aren’t significantly impacted by the speed of the system RAM because graphics cards have their own memory.
When using computers with integrated GPUs, such as those made by AMD’s Accelerated Processing Unit series or non-discrete Intel designs, faster RAM can improve visual performance. This is because the performance of the graphics is dependent on system memory. For machines that are frequently accessed from various points, such as a busy web server or a virtual machine host, it can also make a more noticeable difference. But it really doesn’t matter to the majority of users.

Speed compatibility for DDR2, DDR3, and DDR4

Different generations of RAM are available, with updated standards enabling ever-faster access to the data kept in memory. In 2000, Single Data Rate RAM was replaced by the first DDR standard, or “Double Data Rate,” and we are currently using DDR version 4. Older or less expensive PCs still use DDR3 RAM, which was introduced in 2007.

Performance was improved with each new DDR version because the memory bus and speed capabilities of the RAM module type were expanded. However, it’s crucial to keep in mind that the standards are neither backward nor forwards compatible. You can only use DDR3 memory, not DDR2 or DDR4 if your laptop or motherboard is rated for DDR3 memory modules. Since the physical slots for the various standards don’t even correspond, installing the incorrect DDR standard should be impossible.

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Take note of the DDR3 and DDR4 RAM’s various pin arrangements.

With regard to speed ratings, nevertheless, such is not the case. RAM slots on a motherboard can function without problems at speeds lower than their maximum. Therefore, if your motherboard supports DDR4 RAM at speeds of up to 3600MHz but you found some great modules with speeds as high as 2400MHz, feel free to install them.

Moreover, keep in mind that your motherboard might not be able to run your RAM at the advertised speed right out of the box. In the event that you purchase DDR4-3600 RAM and your motherboard only supports DDR4-3400, it may still default to the lowest setting, such as DDR4-3000. The correct speed must be set in the BIOS of your computer, either by turning on Intel’s extreme memory profile (XMP) or manually adjusting the speed.

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Also keep in mind that installing RAM DIMMs that are not compatible with one another (and that have different speed and timing ratings) is typically acceptable because your motherboard is capable of handling the various hardware. However, in every situation, the system will slow down to match the slowest memory module it can access, so purchasing faster RAM to mix with slower

Also, keep in mind that adding RAM DIMMs with varied speed and timing ratings that are not compatible with one another is typically acceptable because your motherboard is capable of handling the various components. Nevertheless, in every situation, the system will slow down to match the slowest memory module it can access, so buying faster RAM to mix with slower RAM doesn’t really offer any advantages. It’s best to mix new and old RAM whenever you can.

A Quick and Simple Guide to RAM Speed Checking

Learn how to check your device’s RAM speed, the type you require, and more by reading this short and simple instructions.

Let’s first discuss RAM before we swiftly walk you through how to check the RAM speed on your PC.

Before you can determine how to verify the speed of RAM, it’s critical that you understand what RAM is. One of the most essential parts of a computer is random access memory or RAM for short. This is so that all running programs and their data can be stored in the computer’s information or memory bank. A file or program will be moved from your computer bank into the RAM as soon as you open it or begin running it. Therefore, your computer will serve you more quickly the more RAM you have. Because your computer will be slow if your RAM is low.

Let’s say your computer is constantly warning you that it has “low memory,” and you are stressed out about it. All you would then require is more RAM. Keep in mind that the purpose of your computer affects the amount of RAM you actually need. For instance, you may need to upgrade your RAM if you use your PC to edit 4K videos or play games.

What Kinds Of RAM Are There?

There are primarily two types of RAM:

Static Random Access Memory is known as SRAM. Utilizing four to six of the memory cell’s transistors, this specific RAM stores data. The RAM is typically employed as cache memory by computer processors.


Dynamic Random Access Memory is what it’s called. This kind of RAM enables your computer to store each piece of data separately and bit by bit in a capacitor that is constantly refreshed. All of the information and data that has been stored will be automatically deleted if it is not refreshed frequently.

Other RAM types that use DRAM include:

Synchronous Dynamics Access Memory (SDRAM) uses integrated circuits and capacitors to store data.
Rambus Dynamic Random Access Memory, or RDRAM, operates in parallel. It offers 800 MHz to 1600 Mbps of data capacity. However, the computer gets hotter because of the high speed.
DDR Double Data SDRAM The only difference between Synchronous Dynamic Random Access Memory and SDRAM is speed. Additionally, this has DDR1, DDR2, DDR3, and DDR4 varieties of RAM. They choose the DDR speed level.

How To Check RAM Speed?

The Megahertz (MHz), which denotes the RAM’s level of speed, is often accompanied by numerals. What does the computer’s RAM speed actually mean, and how does that affect your use of the device?

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Your computer processor can quickly access the program data that is kept on the hard drive thanks to a very fast RAM speed. As a result, your computer’s processor operates quickly. Last but not least, if the RAM response time is slow, the processor will remain waiting. It implies that the computer’s performance will suffer, especially when playing demanding games. This is so that they can make use of the high cache.

How To Check RAM Frequency With The RAM Speed Test
Let’s now demonstrate how to perform a simple RAM speed test on your computer. The RAM speed test is a little challenging and takes into account a number of variables in addition to the Megahertz clock speed. As a result, prior to performing a RAM speed test, you must be aware of the clock cycles and CAS latency.

RAM clock cycle frequency
This is merely one factor in the speed equation; RAM frequency relies on it. All reading and writing is done on a cycle. RAM is therefore measured by the total number of cycles it completes in a second.

For instance, RAM can give up to three billion cycles per second if its measurement is around 3200 MHz. The amount of cycles your RAM can consume in a second determines how much data can be stored and read on your computer. Additionally, it implies how quickly and smoothly you will use your computer.

Latency CAS

The CAS latency for the column access strobe. Your RAM is waiting during this period to receive a command before executing it. This is how the timing will be given: 13-15-15-33. The total clock cycles required by the RAM to execute the command it has been given are displayed in that presentation. It is possible that a slower MHz RAM with a quicker CAS timing will be faster than a faster MHz RAM with a more drawn-out CAS timing.

The maximum clock speed for the PC using DDR4 RAM is by default 2400 MHz. It follows that anytime a RAM module has a speed level higher than this, the user of the PC has overclocked the module to that level. However, you must locate and enable the RAM’s XMP/DOCP in order to view the overclocked speed of the RAM.

A different module called XMP, which stands for extreme memory profile, needs to be enabled in the motherboard BIOS. To get the RAM to operate at the manufacturer-promoted speed, you must do that. However, if you don’t enable it, your computer will operate at a slower speed level of 2400MHz. These are in addition to making all of your computer’s hardware functionally compatible with one another.

It is important to remember that RAM capacity and bandwidth are additional crucial elements that must be taken into account. The total number of slots in your closet influences the number of clothes, shoes, and other items you can store there, much like this capacity and bandwidth do. The memory is like the enormous closet where all of your different kinds of stuff goes, however, the RAM speed limit is like the empty areas. From there, you can always remove items and place them in different containers.

Imagine there is no more room for storage, so nothing new will be allowed in. Or, let’s say, getting what you want will be stressful and time-consuming if your closet is too small and the spaces are also cramped. And that’s exactly how it works: if your computer has a low-speed limit, you won’t be able to access your RAM data quickly.

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