DDR3 1600 vs 1866 MHz – Which Speed to Go With?

Do you want to know if DDR3 1600 or 1866 MHz is better for your motherboard?
DDR3 is the standard memory type used in modern computers.
This article will compare the two speeds and give you the pros and cons of each.
I hope this guide helps you decide which speed to choose.

Common Name

DDR3 1600 vs 1866MHz -Which Speed to go with? There are many factors that determine what speed we choose for our RAM. We have to take into consideration the type of motherboard we have, the processor we have, the operating system we run, the applications we run, how much memory we have, and the type of games we play. For instance, if we are running Windows 7 64 bit and we have 4GB of RAM installed, we will not see any performance difference between DDR3 1600 and DDR3 1866. However, if we were to install 8GB of RAM, we would notice a huge difference between the two speeds. This is because the faster the RAM the better the performance.

Industry Name

Question: Which is better for gaming: Intel Core i7 7700K or AMD Ryzen 5 1400? Answer: Both CPUs are great choices for gamers. The Ryzen 5 1400 is slightly cheaper but offers similar performance to the 7700K. It comes with four cores and eight threads, while the 7700K only comes with six cores and twelve threads. The 7700K is clocked higher at 3.6GHz compared to the Ryzen 5 1400’s 3.2GHz clock speed.

Max Transfer Rate

The Max transfer rate is the maximum data rate between two devices connected via USB 2.0. This is measured in megabits per second Mbps. For instance, if you connect a hard drive to a computer, the max transfer rate is around 500 Mbps. However, if you connect a flash drive to a computer, it will be around 10 Mbps.

DDR3 1600 MHz

DDR3 1600MHz memory modules are available in speeds ranging from 800MHz to 1600MHz. The higher the frequency, the faster the memory module operates. DDR3 1600MHz memory module is the fastest RAM currently available. It offers better performance compared to other RAMs.

DDR3 1866 MHz

DDR3 1866MHz memory modules are available only in single channel configuration. This means that each DIMM slot supports only one type of memory module. For instance, if you buy two 8GB DDR3 1866MHz modules, you will get 16GB total system memory. In case you need to upgrade your memory, you will have to replace both modules.

Difference between DDR3 1600 and 1866 Ram Module

There are 2 types of RAM modules available in the market today. One is DDR3 1600 and another is DDR3 1866. Both these types of RAM modules are compatible with Intel Core i5/i7 processors. However, DDR3 1866 is faster than DDR3 1600. So, if you are planning to build a PC for gaming purpose, then go for DDR3 1866 RAM modules.

DDR3 1600

DDR3 1600 is the latest version of DDR3 memory module. It was released in 2011. This type of RAM module is used in laptops, desktops, servers and other devices. DDR3 1600 is backward compatible with previous versions of DDR3 1333, 1066.

DDR3 18

DDR3 18 is the newest version of DDR3 memory modules. It was released in 2013. This type of RAM modules is used in laptops, desktop, servers and other devices


Clock speed refers to how fast the processor operates. It’s measured in megahertz MHz. Bandwidth is the rate at which data moves across the bus. For example, if you’re running a program that requires 1 gigabyte of RAM, you’ll probably see around 100 megabytes per second. This is because the computer needs to move data from memory into the CPU and back again.

CAS Latecny

Bandwidth is the rate at wich data moves across the bus, and it is measured in Mhz megahertz. In other words, bandwidth is the frequency at which the processor operates. A higher bandwidth means the processor runs faster. The clock speed determines how many times the processor executes each instruction. The higher the clock speed, the faster the processor works.

What speed should DDR3 run at?

Yes, however, not all RAM modules are interchangeable. The two types of memory modules are referred to as Dimm Dual Inline Memory Module DIMM and SODIMM Single Inline Memory Module SODIMM. Both types of memory modules can be found in different sizes. For instance, a single module may hold 1 GB of RAM while another may hold 2 GB. It is important to understand what type of RAM you currently have installed because some mother boards only support certain types of memory. If you have a board that supports both types of memory, then you can install either type of RAM into the same socket. However, if you board only supports one type of memory, then you cannot install two types of RAM into the exact same socket. What is the difference between DDR3 and DDR4? Answer: DDR3 stands for Double Data Rate 3.0, whereas DDR4 stands for Double Data Rate 4.0. DDR3 is a slower version of DDR4. DDR3 was released in 2003, whereas DDR4 was released in 2013. DDR3 uses a clock rate of 800

Can you mix 1600 and 1866 RAM?

Yes, but not all RAM modules are compatible. The two types of RAM are referred to as DIMMs Dual Inline Memory Module and SODIMMS Single Inline Memory Module. Both types of memory modules are available in different sizes. For example, a single module may contain 1GB of RAM while another may contain 2GB. It is important to know what type of RAM you have installed because some motherboards only support certain types of RAM. If you have a motherboard that supports both types of RAM, then you can install both types of RAM into the same slot. However, if you have a motherboard that only supports one type of RAM, then you cannot install both types of RAM in the same slot. How many RAM slots does my computer have? Answer: Most computers come equipped with four RAM slots. Each RAM slot has a specific purpose. For example, the first RAM slot is used for system memory, the second RAM slot is used for article memory, the third RAM slot is used for graphics memory, and the fourth RAM slot is used for cache memory.

What happens when I use 1866 MHz RAM for a laptop which supposedly only supports 1600 MHz RAM?

DDR3 runs at 800MHz, 1333MHz, 1600MHz, 1866MHz, 2133MHz, 2400MHz, 2667MHz, 3000MHz, 3300MHz, 3600MHz, 4200MHz, 4800MHz, 5400MHz, 6300MHz, 6600MHz, 7200MHz, 8100MHz, 9600MHz, 10800MHz, 12000MHz, 14400MHz, 16000MHz, 18666MHz, 19200MHz, 20000MHz, 21600MHz, 24000MHz, 25600MHz, 28800MHz, 30000MHz, 32000MHz, 33600MHz, 38400MHz, 40001MHz, 43200MHz, 45000MHz, 49152MHz, 51200MHz, 56000MHz, 58500MHz, 64000MHz, 67200MHz, 72000MHz, 75000MHz, 79200MHz, 86400MHz, 92160MHz, 96000MHz, 100000MHz, 102400MHz, 112000MHz, 115200MHz, 128000MHz, 133125MHz, 136875MHz, 144000MHz, 153600MHz, 163800MHz, 172800MHz, 184608MHz, 192050MHz, 204800MHz, 230400MHz, 245760MHz, 256000MHz, 3072000MHz, 3072050MHz, 3276800MHz, 3686400MHz, 4096000MHz, 5080625MHz, 5248800MHz, 536870912MHz, 573440000MHz, 6144096000MHz, 6144000000MHz, 614400000000MHz, 61440000000MHz, 614400000000000MHz, 61440000000000000MHz, 614400000000000000MHz, 61440000000000000000MHz, 6144000000000000000000000MHz, 6144000000000000000000000000MHz, 61440000000000000000000000000MHz, 614400000000000000000000000000000000MHz, 6144000000000000000MHz, 6144000000000000000000MHz, 614400000000000000000000MHz, 61440000000000000000000MHz, 61440000MHz, 6144000000000MHz, 614400000MHz, 61440000000Mhz, 61440000000000MHz, 6144000000000000MHz, 6144000000000001MHz, 614400000000001MHz, 6144000000000002MHz, 614400000000002MHz, 614400000000003MHz, 614400000000004MHz, 614400000000005MHz, 614400000000006MHz, 614400000000007MHz, 614400000000008MHz, 614400000000009MHz, 614400000000010MHz, 614400000000011MHz, 614400000000012MHz, 614400000000013MHz, 614400000000014MHz, 614400000000015MHz, 614400000000016MHz, 614400000000017MHz, 614400000000018MHz, 614400000000019MHz, 614400000000020MHz, 614400000000021MHz, 614400000000022MHz, 614400000000023MHz, 614400000000024MHz, 614400000000025MHz, 614400000000026MHz, 614400000000027MHz, 614400000000028MHz, 614400000000029MHz, 614400000000030MHz, 614400000000031MHz, 614400000000032MHz, 614400000000033MHz, 614400000000034MHz, 614400000000035MHz, 614400000000036MHz, 614400000000037MHz, 61440000000002140MHz, 6144000000200041MHz, 6144000000400042MHz, 6144000000800043MHz, 6144000000160000MHz, 6144000001760000MHz, 61440000000320000MHz, 61440000000640000MHz, 614400081920000MHz, 614480015360000MHz, 6144902304000000MHz, 6144995856000000MHz, 6145108416000000MHz, 6145118848000000MHz, 61451392256

Can I run my 1600 MHz DDR3 RAM on a motherboard which supports 1066 1333 MHz DDR3 RAM speed?

Yes, you can use 1600MHz and 1866MHz RAMs together. But if you use two different types of RAMs together, you will not see any performance improvement. You can only use one type of RAM at a time. If you use two different types, you will not see performance improvement.

CAN 1866 RAM connect to 1600?

DDR3 RAMs are faster than DDR2 RAMs. It is recommended to upgrade your memory from DDR2 to DDR3. However, you can use 800MHz and 1600MHz RAMs together. Why does my computer get slower after upgrading RAM?

Can I mix 1600 and 1866 RAM?

Yes, you can run your 1600 MHz DDR3 RAM in a motherboard which supports 1067 1333 MHz DDR3. But if you are running Windows 7, you can’t use DDR3 1866 MHz. What is the difference between DDR2 and DDR3?

Can I use 800mhz and 1600mhz RAM together?

If you are using a laptop with a 2 GHz processor, you can install 1 GB of DDR3 memory 2133 MHz instead of 1 GB of DDR2 memory 1600 MHz. This will improve performance and reduce power consumption. However, if you are using a laptop that runs Windows Vista, you cannot install DDR3 memory. In this case, you can install DDR2 memory 1600MHz, but not DDR3 memory 1866MHz.

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