What is the difference between the DDRII 800 and the DDRII 1066

Of course, 4G is better, but XP and Vista (32-bit) only support memory at most. But the memory of 1066 is good, but it is too expensive. Performance is not proportional to **. The 1066 memory overclocking performance is good.

The 1066 is much higher, but if you want motherboard support, you also have to support the processor bus. In fact, if you are not a high-end player, there is no need for 1066 In addition, the XP system does not support 4G memory, Vista does not support 64-bit system, it only supports more than 4GB memory, and the 32-bit system is the highest

No, you can buy 2 1g sticks.

4G 32-bit is not supported unless you have a Vista SP1 or 64-bit system.

In fact, there are not too many 1066 bus devices, and they are no longer the mainstream of the market, such as the processor of E2180 and the motherboard of P965. It is recommended that you still buy 800 memory, which is very cost-effective, if you use XP system, you can choose 2 high-end DDR2800 memory, such as the black dragon strip of the Golden Gang, the red dragon of ADATA and so on. The overclocking ability is very strong, if the motherboard ***, it is not a problem to exceed 1066, if you use Vista you can choose 2 2G800 memory.

A lot worse To put it simply, the Vista memory score is only about 800 points and 1066 can be a full score The actual game and the software industry will be very different I think 2G is definitely enough Vista XP is the same as not having a budget or buy 1GB DDRII 1066 two good.

DDR memory is the abbreviation of Double Data Transfer Rate Synchronous Dynamic Random Access Memory, the full name is :d OUBLE Data Rate, DDR memory is a product of SDRAM forward, which is essentially the same as SDRAM

DDR2 is the second generation of DDR SDRAM memory. It improves on the DDR memory technology to deliver faster transfer speeds (up to 667MHz), lower power consumption, and better heat dissipation

The old storage technology DDR is sometimes referred to as DDR1 to distinguish it from DDR2. Although "DDR" is commonly used, DDR1 means the same thing as DDR.

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

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 800.

The main difference between DDR2 400 and DDR2667 and DDR2 800 is the operating frequency.

It's huge. The frequency problem is 800 is best, but it is generally not used as high as the mainstream 667

Difference Between DDR Memory and DDR2 Memory:

1. The DDR memory frequency can be expressed in two ways: the working frequency is the actual working frequency of the memory particles, but because the DDR memory can transmit data on both the rising and falling edges of the pulse, the equivalent frequency of the transmitted data is twice the working frequency; DDR2 memory is capable of reading and writing data at four times the operating frequency per clock, so the equivalent frequency of transmitting data is four times the operating frequency.

II. The difference between 667 and 800:

677 and 800 represent the main frequency, and the main frequency of memory is the same as the CPU main frequency, and it is customary to be used to indicate the speed of memory, which represents the highest working frequency that can be achieved by this memory. The memory clock speed is measured in MHz (megahertz). The higher the main frequency of the memory, the faster the memory can achieve.

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

Both DDR2 and DDR3 have this frequency, and this cannot be used alone.

With the significant price reduction of memory chips and the introduction of the Intel Core i7 platform, the popularity of DDR3 memory is imperative. It is believed that the next 09 years will be the year of the transition from DDR2 to DDR3, DDR3 replaces DDR2, just as DDR2 replaces DDR memory, the most direct benefit is higher working frequency and faster transmission rate. DDR3 memory is transferred at a frequency between 1066-2000MHz, while the DDR2 standard stops at 1066MHz—although there are vendors offering 1333MHz, it is not an industry standard set by Jedec like the DDR500.

The reason why DDR3 can achieve faster speeds is mainly due to the differences at the technical level, such as DDR3 support for 8-bit prefetching, new addressing timing, support for DOT and OCD technologies, and support for point-to-point connections, etc., the addition of these technologies makes it easy to increase the frequency of DDR3, which can reach the upper limit of 1600MHz with dual-channel 128bit computing, DDR3 1600 can provide up to data bandwidth, which is faster than the video memory of many graphics cards today.