The difference between the working frequency of the memory module is 667 and 800

800 is a little better, just a little bit, the performance gap between 667 and 800 is less than 2%, and it's the same to choose a good super, and there is no difference in using it, hehe.

It's just a difference in frequency, the upstairs has said so much, has it been on the topic?

The higher the frequency, the faster the speed. But pay attention to whether your motherboard supports 800 megabytes, if not, it is a waste. If the motherboard supports it, and it is set to 800 megabytes, and the memory is indeed 667 megabytes, the computer will not be able to light up, or even if it can boot, it will not guarantee stable operation.

It means that the effective working frequency of these memories is, of course, DDR800, and the higher the frequency, the faster the transfer speed when working.

Frequency, high frequency and fast speed, 667 and 800 are not the same.

67 and 800 memory modules, in daily use, there is almost no difference. There is only a small difference in speed when large memory bandwidth is required, such as large-scale 3D games and 3D animation rendering.

You should be talking about DDR 667 and DDR 800, because the first generation of DDR memory is limited by technology, and the frequency can only be up to 400, and the second generation of DDR uses new technology to increase the frequency to 800.

1. DDR 667 and DDR 800 have different frequencies and bandwidths, and there is a certain gap in the early theory.

2. However, in daily use, it is rare to use up the memory bandwidth, and the capacity of the memory is much larger than the bandwidth, so the actual difference between the two is very small when the capacity is the same.

3. Some special applications require large memory bandwidth, such as large-scale 3D games, animation rendering, PS, AE, etc., which require large memory bandwidth to reflect the difference between the two, but the difference is far less than the proportion of digital pick-up.

4. DDR 667 is the read and write frequency of memory, the higher the frequency, the faster the CPU and memory exchange data, and the faster the computer speed, but this is only one of the factors that affect the speed of the computer. Motherboards that support DDR2 memory support DDR2 667 and DDR2 800. The main frequency of the memory determines the maximum frequency at which the memory can work normally.

At present, the more mainstream memory frequency is 1600MHz DDR3 memory.

Hello. If you just change the original 667 strip to 800, there is no difference in the BIOS without any settings.

The memory frequency is related to the external frequency of the CPU, if your external frequency is 266, set the external frequency memory ratio to 2:3 to make the 800 strip really work on the frequency. The same goes for other external frequencies.

Whether the purchase of 800 strips can bring significant improvement also depends on the performance of your other hardware. If the bottleneck of the whole machine is on the CPU or graphics card, it is obviously unwise to change the memory.

As for the difference in memory frequency, 3ds Max is not noticeable when modeling, and the acceleration effect on rendering is not obvious. The factors that affect the rendering speed are the CPU speed and the memory size. In most DX9 3D games, the difference is also relatively small.

A simple analogy is this: if I secretly turn on your computer in the middle of the night and change the memory to 800, it may take a long time for you to notice it from the POST.

Most of the 667 memory with a good physique can exceed 800, you can experience the effect after 800, and then decide whether to buy 800 slivers.

The frequency is different, and of course it feels different when it runs!

The frequency of DDR memory and DDR2 memory can be expressed in two ways: the operating frequency is the actual working frequency of the memory particles, but since the DDR memory can transmit data on both the rising and falling edges of the pulse, the equivalent frequency of transmitted data is twice the operating frequency; DDR2 memory, on the other hand, 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. For example, the working frequency of DDR 200 266 333 400 is 100 133 166 200MHz, and the equivalent frequency is 200 266 333 400MHz; DDR2 400 533 667 800 operates at 100 133 166 200MHz and 400 533 667 800MHz equivalent

Of course there is, for example, my X2 4200+ CPU runs at 667 at 200 external frequencies, and 800 at 219 external frequencies

Of course. Performance is like the difference between QQ and BMW.

Actually, there is no difference? If you don't have Bois settings you won't be able to see their performance, and for the average user, you won't have to think about it at all.

It means that the memory frequency is 667MHz and 800mmhz, which can be used stably in a unified working environment. But there are a few things that must be understood:

1.The capacity of memory is much larger than the bandwidth, so the actual difference between the two is very small for the same capacity. (As long as the capacity is enough to play the game, the frequency and timing are puffy clouds.) ）

and 800, the frequency is different, the bandwidth is different. There is a certain gap in theory. The higher the frequency, the faster the memory, and the better the memory.

3.Some special applications require large memory bandwidth, such as large-scale 3D games, animation rendering, PS, AE, etc., which require large memory bandwidth to reflect the difference between the two, but the difference is far less than the proportion of numbers.

4.In the actual operation and use of the computer, the difference in the frequency of different memories is almost imperceptible. That is to say, it is equivalent to use.

For example, the difference in memory frequency is not noticeable in 3ds Max when modeling, and the acceleration effect on rendering is not obvious. The factors that affect the rendering speed are the CPU speed and the memory size.

In most DX9 3D games, the difference is also relatively small.

5.Most of the 667 memory with good physique can exceed 800.

This means that DDR2 667MHz memory can be used with DDR2 800MHz memory. However, using them together will reduce the frequency. It is recommended to use 2G DDR2 800 memory, and if possible, use two to form 4G, and then use a 64-bit system.

It's a strip that can be used at either 667 or 800.

Yours should be a notebook!

Frequent problems with booting? What is the problem? It's not very clear.

1: Make sure if there is a problem with your memory. Maybe there's something wrong with your memory itself.

2: It seems that your picture is just a memory, you didn't add it, it should be a different one, if it is added, and only one memory is displayed, it may be that there is a problem with the motherboard memory channel itself or your Bois is not supported.

3: Your current memory working voltage should be, you use software to test whether the current memory power supply voltage is normal, with CPU-Z may also be measured, of course, it is best to find a few more software to test, in principle, the working voltage of the memory will be automatically adjusted, but it is not excluded that there are some reasons that cause the voltage to be wrong, for example, your current memory power consumption is larger than the previous memory power consumption, and your motherboard is insufficient power supply to the memory; If the memory working voltage is not right, there will also be a problem, if not, you try to enter the BOIS to see if you can set the memory power supply voltage.

4: Your motherboard is a 945GM northbridge and a T2350 dual-core CPU; It is impossible to get the memory up to DDR800 in this configuration, and you can buy a 667 one, but it's okay to use 800, it will automatically drop to below 677, you test it with software, if you find that the memory frequency is too high, you see if Bois is set to memory overclocking, which causes instability.

If you still don't find the problem, you go to Bois to see if the memory access is set too fast in the memory settings, if you don't understand, you go to Bois to restore the default settings and see if it can be solved.

5: Theoretically speaking, the north bridge of 945 can be composed of dual-channel memory, but it depends on how the manufacturer designs, if it can support dual-channel memory, it is recommended that you add a dual-channel memory, which can improve the performance of the whole computer.

Maybe it's not a memory problem at all, it's just that when you change the memory, there is a lot of other problems or system problems, and you enter the dead zone of the problem, and you don't understand the situation, check all the links and then determine the problem!!

It's a fake dual-core You are a PD processor That is, a core dual-core is commonly known as a fake dual-core But those who sell computers generally say that this dual-core configuration is very general But if you have played ordinary 3D games, it is okay What about your graphics card?

Upgrade to add a memory It is recommended to add a 1G to improve the reading speed of your computer Does the motherboard leave the interface of the independent graphics card If you keep it, upgrade it to a discrete graphics card.

Don't upgrade before the warranty period expires.

If you change the motherboard, then you have to add memory, and then change to a discrete graphics card, it will cost a lot of money, it is better to build a new machine after a while.

Memory1GDDR667 140 or so Your motherboard should have a dedicated graphics interface Just buy a separate graphics card If you don't know if your motherboard has a separate graphics slot, then call the founder customer service and ask them that have the details of your machine Can provide you with comprehensive services for upgrades.

If your original is 667, then after adding 800, it will be 667, but it will definitely be more card than before, of course, if it is 800, add 667, it will also be 667!

The memory frequency of the memory module is 800, which means that the strip supports 800, and Master Lu detects 667, for 3 reasons:

1. The maximum limit of the system memory controller;

2. If there are multiple memory modules, they are clamped by the lowest frequency memory sticks;

3. The default is not selected in the BIOS, or the custom is not correctly selected.