DDR2 and DDR3 are not only different in what they are, but they are electrically different, you can't use products that aren't designed to be electrically compatible with each other. Even if you did somehow force a DDR3 module into a DDR2 slot, you'd probably blow the RAM, and, well, the system board too. DDR3 RAM consumes less power and produces less heat than DDR2 RAM at the same clock speed (e.g. DDR3 vs DDR2 RAM that is both running at 1,066 MHz). However there is a catch: RAM with higher clock speeds have higher power consumption so DDR3 RAM running at 2,133 MHz will still drain more power than DDR2 RAM at 1,066 MHz. I thought 240 pin plugged it to each other. Just got my new motherboard and I can't use my old 240 pin RAM modules. The only difference that I can see is the old MOBO is ddr2 and the new one is ddr3. My new Mobo is A780L3C any recomendations for RAM. The computer is not for any gaming. NO DDR2 is for a DDR2 slot and DDR3 is for a DDR3 slot. Is it that you only have two DDR2 slots or something? They do sell 4GB sticks of DDR2 (so two of them would give you 8GB) but they are. Transfer rates on DDR2 range from 400 to 800 Mbps. On the DDR3, the range is 800 to 1600 Mbps. The DDR2 has four internal banks of memory while the DDR3 has eight. The DDR2 does 4-bit prefetch and the DDR3 does 8-bit prefetch. The DDR2 uses more voltage than the DDR3 does. The DDR2 runs with 1.8V while DDR3 runs with 1.5V.
Identifying the Random Access Memory is not difficult. In general, there are three common types: DDR1, DDR2, and DDR3. To identify them physically is not difficult. You simply need to define the distance of Notch, as well as the intergrated chip (IC) type. But first, you need to confirm that is indeed DDR1, DDR2, or DDR3 and not one of the SDRAM. Keep the chip's front facing you and look at the DDR Notch. The notch will vary in the DRR.
Distance of Notch
The notch is a small cut on the RAM itself. In all DDR, the notch is at the base of the RAM. In DDR1 and DDR2, the notch cuts look similar. However, in DDR1, the notch is just above the IC while in DDR2, the notch is a bit farther from the IC. In DDR3, the notch is nowhere near the center.
The Integrated Chip
In DDR3, the IC is small and square. In DDR2, it is bigger which DDR1 has the largest IC. In DDR1, the IC touches the bottom and top while in DDR2, it is just inside the borders. In DDR3, the IC is quite small and nowhere close to the edge.
Touch screen slot machine for sale. The Pin Count in DDR1, DDR2, DDR3 are as follow:
• DDR1 – 184 Pins
• DDR2 – 240 Pins
• DDR3 -240 Pins
The voltage of the RAM
The voltage is not used to physically identify the RAM. However, it can be used to find the right motherboard slot. The voltage is indicated in the motherboard slot.
• DDR1 Volts – 2.5 V
• DDR2 VoIts – 1.8 V
• DDR3 Volts – 1.5 V
Comparing DDR2 and DDR3
A modern laptop uses either DDR2 or DDR3. The DDR3 was introduced in 2008 when Intel released the Core i7 first generation processors. After that, most of the industry moved to DDR3, although there are still DDR2 users. All new processors created by Intel since they can only work with a motherboard that uses DDR3 and not any lower than that. Even AMD motherboards have been switching to DDR3.
DDR stands for Double Data Rate RAM. It came about at the turn of the century when the first Double Data Rate RAM was used. It is able to conduct two data transfers in each clock cycle. Thus, it theoretically has twice the peak bandwidth compared to the previous SDRAM without an increase in clock speed.
How do DDR2 and DDR3 Defer?
Both of these are improvements on the same technology. There has also been an increase in the number of data transfers for each clock cycle. DDR2 is capable of 4 data transfers in a clock cycle while DDR3 doubles that to 8. Assuming that there is a base clock speed of 100MHz, the DDR1 RAM will offer 1600 MB/s of bandwidth while DDR2 will offer 3200 MB/s. DDR3 will then be offered 6400MB/s.
The Performance Issues
In practice, you will not notice a major difference between the DDR2 and DDR3. While the increase memory bandwidth is awesome, about 99% of all programs cannot create a large enough workload that is restricted by memory bandwidth. This issue is only important to workstation and server class products. There are benchmark programs that can test the memory bandwidth.
Compatibility Issues
When purchasing DDR2 or DDR3, it is not about preference. In fact, these two are not compatible. If you have a motherboard that uses DDR2, it cannot be upgraded to DDR3. You would also need to change the motherboard. Thus, if you have a working computer using DDR2 RAM, you need to throw out a working motherboard and the DDR2 RAM just to use DDR3 RAM.
There are some motherboards, which are exempted from this rule. However, this is only because they have slots for bother DDR2 and DDR3. These can only be found in only the older chipsets. While it is a letdown, you can do little about it. Both AMD and Intel have commuted to only use DDR3 or higher in the future. This means that you might have to upgrade your computer to avoid using a dinosaur.
The Clock Speed
Clock speed is quite important when looking into RAM. Clock speed tells you how well RAM is going to perform. It works, in the same way, as to how a clock speed shows you how well a processor is doing. It is part of an equation, which will determine the maximum peak bandwidth of the memory. Higher clock speed is important. However, this will likely not matter in everyday use.
It is important to know that some motherboards will only accept memory in a limited range of clock speed. Thus, always visit the site of the manufacturer to check if RAM is compatible. Motherboards are flexible but it is always good to be on the safe side.
The invention of DDR3 effectively made DDR2 obsolete. In short, if you have RAM below DDR3, it is a good idea to upgrade, even a personal computer. Soon, you might face huge challenges when using your desktop computer.
DDR2 vs DDR3 RAM - What's the difference between DDR2 and DDR3 memory? How do you tell them apart? Can you use DDR3 RAM in a DDR2 socket? Get the full answers right here.
The RAM found in most modern desktop and laptop computers is DDR3 RAM (DDR3 is short for Double Data Rate Type 3). To be more precise, its full technical name is DDR3 SDRAM.
If your computer was built in 2008 or earlier, then chances are that it has the older DDR2 RAM instead.
At buildcomputers.net, we don't take chances or make guesses.. so let's learn what are the differences between DDR3 vs DDR2 RAM and how to tell them apart.
How to Tell If You Have a DDR2 or DDR3 RAM Module
In terms of physical appearance, DDR2 vs DDR3 RAM looks largely similar. They are of the same length (~13.3 cm or 5.25 in) and have the same number of pins (240):
Here's the trick to tell them apart: Look at their notch positions (circled in yellow above).
As you can see from the image below, the DDR2 notch is located near the middle of the RAM stick while the DDR3 notch is positioned nearer to the left side. If you want to be more precise,
- DDR2: distance between left side of RAM stick and notch = 7.1 cm (2.8 in)
- DDR3: distance between left side of RAM stick and notch = 5.4 cm (2.1 in)
This difference in notch position is also why you can't use DDR3 RAM in a DDR2 system or install DDR2 RAM into a DDR3 slot (even though they have the same number of pins).
In short, DDR2 and DDR3 RAM are not compatible with each other: If your motherboard has DDR2 RAM slots, then you can only use DDR2 RAM. The same applies to DDR3 RAM.
What's the Difference between DDR2 and DDR3 RAM?
| DDR2 RAM | DDR3 RAM |
Number of Pins | 240 pins | 240 pins |
Clock Speed | 400 to 1,066 MHz | 800 to 2,933 MHz |
Max Transfer Rate | 3,200 to 8,533 MB/s | 6,400 to 17,067 MB/s |
Voltage | 1.8V | 1.5V |
From the DDR2 vs DDR3 table above, we can see that DDR3 RAM offers better performance while consuming less power.
The difference in clock speed and max transfer rate numbers look impressive on paper, but DDR3 RAM is in fact just 2 to 10% faster than DDR2 RAM for most real-world applications (depending on your hardware specification and usage).
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• DDR1 Volts – 2.5 V
• DDR2 VoIts – 1.8 V
• DDR3 Volts – 1.5 V
Comparing DDR2 and DDR3
A modern laptop uses either DDR2 or DDR3. The DDR3 was introduced in 2008 when Intel released the Core i7 first generation processors. After that, most of the industry moved to DDR3, although there are still DDR2 users. All new processors created by Intel since they can only work with a motherboard that uses DDR3 and not any lower than that. Even AMD motherboards have been switching to DDR3.
DDR stands for Double Data Rate RAM. It came about at the turn of the century when the first Double Data Rate RAM was used. It is able to conduct two data transfers in each clock cycle. Thus, it theoretically has twice the peak bandwidth compared to the previous SDRAM without an increase in clock speed.
How do DDR2 and DDR3 Defer?
Both of these are improvements on the same technology. There has also been an increase in the number of data transfers for each clock cycle. DDR2 is capable of 4 data transfers in a clock cycle while DDR3 doubles that to 8. Assuming that there is a base clock speed of 100MHz, the DDR1 RAM will offer 1600 MB/s of bandwidth while DDR2 will offer 3200 MB/s. DDR3 will then be offered 6400MB/s.
The Performance Issues
In practice, you will not notice a major difference between the DDR2 and DDR3. While the increase memory bandwidth is awesome, about 99% of all programs cannot create a large enough workload that is restricted by memory bandwidth. This issue is only important to workstation and server class products. There are benchmark programs that can test the memory bandwidth.
Compatibility Issues
When purchasing DDR2 or DDR3, it is not about preference. In fact, these two are not compatible. If you have a motherboard that uses DDR2, it cannot be upgraded to DDR3. You would also need to change the motherboard. Thus, if you have a working computer using DDR2 RAM, you need to throw out a working motherboard and the DDR2 RAM just to use DDR3 RAM.
There are some motherboards, which are exempted from this rule. However, this is only because they have slots for bother DDR2 and DDR3. These can only be found in only the older chipsets. While it is a letdown, you can do little about it. Both AMD and Intel have commuted to only use DDR3 or higher in the future. This means that you might have to upgrade your computer to avoid using a dinosaur.
The Clock Speed
Clock speed is quite important when looking into RAM. Clock speed tells you how well RAM is going to perform. It works, in the same way, as to how a clock speed shows you how well a processor is doing. It is part of an equation, which will determine the maximum peak bandwidth of the memory. Higher clock speed is important. However, this will likely not matter in everyday use.
It is important to know that some motherboards will only accept memory in a limited range of clock speed. Thus, always visit the site of the manufacturer to check if RAM is compatible. Motherboards are flexible but it is always good to be on the safe side.
The invention of DDR3 effectively made DDR2 obsolete. In short, if you have RAM below DDR3, it is a good idea to upgrade, even a personal computer. Soon, you might face huge challenges when using your desktop computer.
DDR2 vs DDR3 RAM - What's the difference between DDR2 and DDR3 memory? How do you tell them apart? Can you use DDR3 RAM in a DDR2 socket? Get the full answers right here.
The RAM found in most modern desktop and laptop computers is DDR3 RAM (DDR3 is short for Double Data Rate Type 3). To be more precise, its full technical name is DDR3 SDRAM.
If your computer was built in 2008 or earlier, then chances are that it has the older DDR2 RAM instead.
At buildcomputers.net, we don't take chances or make guesses.. so let's learn what are the differences between DDR3 vs DDR2 RAM and how to tell them apart.
How to Tell If You Have a DDR2 or DDR3 RAM Module
In terms of physical appearance, DDR2 vs DDR3 RAM looks largely similar. They are of the same length (~13.3 cm or 5.25 in) and have the same number of pins (240):
Here's the trick to tell them apart: Look at their notch positions (circled in yellow above).
As you can see from the image below, the DDR2 notch is located near the middle of the RAM stick while the DDR3 notch is positioned nearer to the left side. If you want to be more precise,
- DDR2: distance between left side of RAM stick and notch = 7.1 cm (2.8 in)
- DDR3: distance between left side of RAM stick and notch = 5.4 cm (2.1 in)
This difference in notch position is also why you can't use DDR3 RAM in a DDR2 system or install DDR2 RAM into a DDR3 slot (even though they have the same number of pins).
In short, DDR2 and DDR3 RAM are not compatible with each other: If your motherboard has DDR2 RAM slots, then you can only use DDR2 RAM. The same applies to DDR3 RAM.
What's the Difference between DDR2 and DDR3 RAM?
| DDR2 RAM | DDR3 RAM |
Number of Pins | 240 pins | 240 pins |
Clock Speed | 400 to 1,066 MHz | 800 to 2,933 MHz |
Max Transfer Rate | 3,200 to 8,533 MB/s | 6,400 to 17,067 MB/s |
Voltage | 1.8V | 1.5V |
From the DDR2 vs DDR3 table above, we can see that DDR3 RAM offers better performance while consuming less power.
The difference in clock speed and max transfer rate numbers look impressive on paper, but DDR3 RAM is in fact just 2 to 10% faster than DDR2 RAM for most real-world applications (depending on your hardware specification and usage).
Texas holdem button rules for dummies. In Texas hold'em, the player on button, or last active player closest to the button receives the last action on all post-flop streets of play. While the dealer button dictates which players have to. Most Texas Hold 'Em Poker games start with the two players to the left of the dealer (the button) putting a predetermined amount of money into the pot before any cards are dealt, ensuring that there's something to play for on every hand.
DDR3 RAM consumes less power and produces less heat than DDR2 RAM at the same clock speed (e.g. DDR3 vs DDR2 RAM that is both running at 1,066 MHz). However there is a catch: RAM with higher clock speeds have higher power consumption so DDR3 RAM running at 2,133 MHz will still drain more power than DDR2 RAM at 1,066 MHz.
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