How to buy a graphics card

How to buy a graphics card

The performance of the graphics card directly affects people's visual feeling, choose a suitable graphics card for computer users is particularly important, especially for the graphics card requirements particularly high users, such as professional graphics designers, game enthusiasts, a good graphics card can make the program run more perfect. So how to choose a piece for their own graphics card? The following small series for everyone to introduce a detailed, to see it!

Choose a card or N card

Independent graphics cards have a card and n cards, regardless of which brand graphics card, its graphics card chip brand only two: "ATI" and "NVIDIA."

From power considerations

First of all, the power of the graphics card is idle and full load of points, here take its maximum power to compare.

A card is really more calorific than n card.

In general, even if it is high 70W, it also requires continuous work 14 hours to consume more than 1 degrees of electricity.

So, from power considerations, heat dissipation is the key!!!

A card features

1. High cost performance;

2. Power consumption is slightly higher than n card;

3. Processing chips provided by AMD;

4. On the mobile end a card outstanding performance (PS4, Xbox is a card)

5.A card to use for drawing;

N Card Features

1. High compatibility, so it is suitable for playing games;

2. On the PC can experience the difference with a card;

3. The processing chip is provided by NVIDIA;

4.N Card 9 Series power consumption is reduced, 7 series (more than 760 of some) and a card calorific value almost.

5. On the mobile phone plate, a card is blank.

Nvidia has always been at the forefront of technology, but AMD has its own advantages.

A card optimization of the game is also a lot but not more than n card;

Finally, you have to choose according to your own needs and budget.

Money self-willed, all bought to contrast is also very good.

Video card parameters

See "Number of stream processing units"

This is the first video card we want to see. Parameters: Flow processing Unit;

But for a card, you need to divide the number by 5, and then compare it to n card.

Look at the "bit width of memory"

Mainly for the following "video memory bandwidth" to do matting

The higher the bit width, the higher the cost, so the manufacturers will choose the low width, high frequency combination

See "Memory Bandwidth"

First, the bandwidth and bit width of video memory are different.

Calculation formula: Video Memory bandwidth = memory frequency x video Memory bit width/8

Two graphics card, that bandwidth is big, which performance is strong.

Other

Memory capacity: The larger the capacity, the more data can be cached;

Video Memory Frequency: There are DDR3, GDDR3, GDDR5 difference, now to choose GDDR5 (the highest frequency);

Memory bit width: The larger the bit width, the greater the difficulty of manufacturing, the higher the production cost.

At last

When viewing the graphics card parameters, you can't just look at the top.

For example, many manufacturers will choose: low width (lower cost), high frequency, to obtain a high bandwidth of the graphics card (to ensure performance and price)

Integrated graphics

"Intel Video card"

On the i3, i5, i7 processors, there will be the CPU's own built-in display, these graphics cards are also very good performance.

0 Computer Small white DIY_CPU model how to see how to pick the CPU

I'm going to make a special statement that

If you configure the above CPU, in the purchase of graphics must pay attention to, do not buy those than the built-in core, but also the difference of the independent graphics card.

It has been tested: Intel HD 4600 (i5 4590), the equivalent of GT630D3 performance.