The parameters in the graphics card memory bit width frequency which parameter is more important

Let's review the principle of how graphics work (in order)

No.1 from the system bus into the GPU: the CPU sent data to the motherboard chipset on the transfer to the GPU processing;

No.2. From the GPU chip into the video memory: the card chip processing data sent to the memory;

No.3. From video memory into digital analog converters: From video memory reading data sent to RAM DAC for data signal conversion work (commonly known as digital signal analog signal)

No.4. Enter the monitor from the DAC: send the converted analog signal data to the display

Graphics performance is determined by 2 and 32 intermediate links.

Next, analyze the performance structure of the video card below:

Determine the graphics card performance, is the two hardware: Graphics chips > Video memory, the former determines the graphics operation performance, special effects rendering, virtual technology, such as "Big" project, the latter to solve the above graphics processing data transmission and speed.

Graphics chip is not wordy, directly to the memory, it is the role of several parameters as follows:

1. Video memory bit wide memory to show the channel of the chip, determine the existence of an operational cycle of instantaneous throughput;

Insufficient bit width will cause high resolution screen is not fluent, or frame number instability, because the graphics chip is not sufficient

Data to compute. Basically 128 bit can cope with the high resolution of the mainstream.

2. Memory bandwidth memory and video card chip between the amount of data transfer

Its size is determined by the bit width of video memory, calculation formula: Video Memory bandwidth = working frequency * video Memory bit width/8;

3. Video memory frequency memory data transmission speed

4. Memory capacity memory can buffer storage capacity of data

1 and 3 are key to determining performance.

In the previous game and design rendering program design, more dependent on the video card frequency and bit width;

And the current mainstream game and design rendering programming, more biased in memory capacity and bit wide application, because the current program is basically in the case of high resolution, and added more and larger rendering map, need a greater bit width and capacity to meet GPU operations appetite.

If in the video memory/bit width/frequency, inside must make a choice, the current purchase graphics card consider graphics chip > bit width > Video memory > Frequency

If you are a professional 3D design user, it is recommended that you buy a professional video card.