What is the difference between DDR memory and PC133 memory???

DDR is the memory specification, which refers to the maximum working frequency of the memory on the host is 133MHz, generally the minimum working frequency of the current memory is 266MHz, and it is DDR, while PC133 is the SDRAM memory specification, which is two generations of memory, not the same.

DDR is memory for double-speed data transfer, which is faster than regular SDR memory transfer. The transfer speed is theoretically twice that of regular SDR memory.

PC133 means that the memory works at a frequency of 133 Hz.

The PC133 era is all SDR memory.

To put it simply:

PC2100 is equivalent to DDR266, and in the same way, PC2700 is equivalent to DDR333

PC3200 is equivalent to DDR400

DDR is actually an improved version of PC133.

Data Rate SDRAM is the abbreviation (Double Data Rate), DDR is the Double DDR SDRAM memory technology is developed from the mainstream PC66, PC100, PC133 SDRAM technology. This new technology enables a new generation of high-performance computer systems, including desktops, workstations, servers, portables, and new communication products such as routers. DDR memory is now widely used in high-performance graphics adapters.

The most intuitive benefit of PC133's memory is that it improves the memory speed, and keeps the frequency of 33MHzPCI and 66MHzAGP unchanged, which has better manufacturing process requirements, etc. And for PC150 memory,To put it bluntly, it's just PC133 in the beauty or PC166 memory in the defective product,Its performance has not been changed in essence,**It's a lot more expensive,For most users,Including the standard PC166 memory is not a good choice for you so far,Of course, fanatical DIY fans are exceptions。

ddr..The first letter is double. Needless to say, right?

Large bandwidth. It's fast.

DDR3 is a computer memory specification. It is a memory product belonging to the SDRAM family, which offers higher performance and lower voltage than DDR2 SDRAM, and is the successor to DDR2 SDRAM (Quadruple Data Rate Synchronous Dynamic Random Access Memory) (increased to 8 times), and is also a popular memory product today. DDR3 memory can achieve high bandwidth at the same time, its power consumption can be reduced, its core operating voltage from DDR2 to the relevant data**DDR3 will save 30% of the power consumption compared with the current DDR2, of course, we don't need to worry about heat.

In terms of balance between bandwidth and power consumption, compared with the existing DDR2-800 products, the power consumption ratio of DDR and 1333 is the same, which not only greatly improves the memory bandwidth, but also has better power consumption performance than the previous generation.

DDR3 is a third-generation memory specification; MHz is the unit of measuring the working frequency of memory, the higher the memory frequency, the stronger its performance, 1333MHz means that its working frequency is 1333MHz.

DDR3 is the arrangement and process of memory particles, and 1333 refers to the frequency at which it runs.

DDR3 refers to the specific type of memory and 1333 refers to the frequency.

DDR4 start frequency.

BAI is 2133MHz, of course it is.

The higher the frequency, the faster the internal memory, and the 1600 and 1333 of DDR3 refer to the genus.

The running frequency of memory, the higher the frequency, the faster the speed of 1333 DDR3 memory has been eliminated, now is the time for DDR3 to turn to DDR4, DDR3 memory has dropped to the lowest price, DDR4 memory has also begun to rise, what memory to buy depends on how much money you have.

The frequency is not the same, the running speed is different, and the faster point behind.

Memory DDR3 1333MHz and DDR3 are attribution and are not comparable.

DDR3 memory has different operating frequencies (1333MHz, 1600MHz, and overclocking).

There are four generations of memory, which are DDR, DDR2, DDR3, and DDR4. Among them, the mainstream memory module is DDR3.

2.Like the CPU frequency, the memory frequency is customarily used to indicate the speed of the memory, which represents the highest operating frequency that the memory can achieve. The memory clock speed is measured in MHz (megahertz).

The higher the main frequency of the memory, the faster the memory can achieve.

3.The main frequency of the memory determines the maximum frequency at which the memory can work properly.

DDR3 1333 is a member of DDR3 memory, which is DDR3 memory with an external frequency of 1333, and its younger brother DDR3 1066 and its brother DDR3 1600 and so on, are all a family.

Aren't they all the same thing, 1333 is just one of the models 1066 1600 2000 and so on. The higher the designation, the better.

It's DDR1

333 is the frequency.

The faster the frequency, the faster it is.

Below I explain to you the difference between them:

DDR1 and DDR2 are two different interfaces, respectively. DDR1 memory executes 2 instructions in a cycle, when it works at 200MHz, it is what we often call DDR400, and in the same way, there are DDR333, 466, 566, 677 and even 800 memory on the market.

For DDR2, because of the design, it can solve 4 instructions in 1 cycle, in other words, DDR2 memory with the same operating frequency of 200, we call it DDR2

The new machines now use DDR2 as the standard DIMM memory. Including AMD's just-launched AM2 processor, which also integrates DDR2 memory controllers. It can be said that unless the memory of the old machine can be upgraded to DDR400 memory, the new machine is basically DDR2533 or DDR2667 memory.

DDR2 is theoretically more expensive than DDR1.

But in reality?

According to the law of value of the invisible hand of the market.

He is a scarce resource.

On the contrary, it is expensive, for example, DDR2-667-1G, which is about 120.

The DDR1-333-1G has to be priced at 200.

Plus, your 2x

The SO-DIMM memory slot can be expanded up to 2GB, which means you can expand up to 2GB of RAM.

You can insert 2 tones of 1G memory.

What if you insert 2 2G? Let's walk

Having said that.

I hope the landlord can give points