DDR2 vs. DDR3: What’s the difference?


RAM, or Random Access Memory, is your PC’s transient memory. In the event that your PC needs data and does not discover the RAM, it at that point needs to trip to the hard drive to attempt and recover the information, which is unquestionably tedious. Numerous more seasoned PCs that vibe drowsy can be given new life if redesigned with extra RAM.

Be that as it may, capacity is just a single particular. RAM is additionally accessible in an assortment of adaptations and velocities. A 2GB stick of DDR2 800 RAM isn’t the indistinguishable thing from a 2GB stick of DDR3 1333 RAM. Understanding the distinction is critical on the grounds that PCs will by and large acknowledge just certain sorts of RAM.

We should investigate the distinctive sorts of DDR memory available and how they are not the same as each other.

DDR2 vs. DDR3


In late 2008, Intel discharged the main Core i7 processors. These processors were matched with another motherboard chipset called X58. This chipset presented the requirement for another kind of memory called DDR3.

Over the most recent two years, the whole business has changed over to DDR3. The majority of Intel’s new processors must be utilized with a motherboard that requires DDR3. Late AMD motherboards are additionally changing over to DDR3.

The expression “DDR” remains for Double Data Rate RAM. This term came into utilization when the new century rolled over when the primary Double Data Rate RAM modules arrived. Twofold Data Rate RAM was equipped for two information exchanges for every clock cycle, giving it double the hypothetical pinnacle transmission capacity of the past SDRAM while running at a similar clock speed.

DDR2 and DDR3 are the changes on a similar innovation and further increment the number of information exchanges per clock cycle. DDR2 RAM gives 4 information exchanges for each cycle, while DDR3 expands the number to 8. Expecting a base clock speed of 100 MHz, DDR RAM will give 1600 MB/s of Bandwidth, DDR2 gives 3200 MB/s, and DDR3 gives 6400 MB/s. More is in every case better.



Does this mean you’ll see a major contrast somewhere in the range of DDR2 and DDR3 frameworks? Indeed, perhaps not. While the expansion in memory transmission capacity is incredible, in all actuality 99% of projects are not equipped for making a remaining task at hand that will be confined by memory data transfer capacity. The issue is most significant to server and workstation class items.

To see a distinction in execution you’ll, for the most part, need to utilize a benchmark program fit for testing memory transmission capacity.

In any case, acquiring DDR2 or DDR3 RAM isn’t generally a matter of inclination. DDR2 and DDR3 RAM are not good. In the event that your motherboard utilizes DDR2, you can’t move up to DDR3 without overhauling your motherboard. This implies in the event that you right now claim a PC with DDR2 RAM and you need to move up to a pristine processor and motherboard you need to toss your flawlessly great DDR2 RAM and purchase new DDR3 RAM.

There are a couple of motherboards which are special cases to this manage, yet they are exemptions simply because they give both DDR2 and DDR3 RAM openings, and these exemptions are accessible just on more established chipsets.

I know – it’s a bummer, yet it isn’t much you can do about it. Both Intel and AMD have focused on DDR3 RAM for future items, so you’ll be compelled to either purchase new RAM and manage your PC turning into a dragon.

Clock speed


Another critical detail to consider when taking a gander at RAM is the clock speed. Clock speed means that how well the RAM will perform similarly that clock speed demonstrates how well a processor will perform, and it is a piece of the condition that decides the most extreme hypothetical pinnacle transmission capacity of the memory. A higher clock speed is better. Be that as it may, as I specified beforehand, this is a distinction that is probably not going to be detectable in typical every day utilize. The average aficionado won’t see much advantage from memory with a higher clock speed.

All things considered, there are motherboards that just acknowledge memory inside a constrained scope of clock speeds. It is dependably a smart thought to counsel a motherboard producer’s site to twofold check the RAM that is perfect. Motherboards are typically exceptionally adaptable in such manner, yet it is smarter to be sheltered than too bad.


The awful news is that the creation of DDR3 is making DDR2 outdated by constraining. I have four sticks of extra DDR2 memory that are not anymore fit for finding a home in another framework, even a low-control HTPC or office PC, due to the change. Fortunately, new RAM innovation is no less than quite a while off, so DDR3 bought today ought to be useful for some time. Simply make certain to check the kind of RAM another motherboard requires before buying RAM to run with it.