There are several main aspects that determine the performance of a graphics card:
First, the core frequency and type (the greater the frequency, the better, and the newer the core, the better); Second, the memory bit width and type (gddr2, 3, 4, 5, the later the better! ); Third, the size of the memory (the bigger the better) and the quality of the particles (you can't see it); Fourth, the quality of manufacturers (sapphire, Jing Xun, Dylan Hengjin, his, sunflower, etc. From the first-line manufacturers, they are all very powerful, and the materials and sealing technology have reached a high level.
Compatibility and coordination of graphics cards;
In terms of compatibility, it should be noted that pci-e is divided into two versions: 1.0 and 2.0. If you insert 1.0 in version 2.0, it will be incompatible! Or vice versa, Dallas to the auditorium AGP did not mention that it is history! Coordination: A good motherboard has a good foundation, and a good graphics card is equivalent to a superstructure. A good foundation can build a higher building, and a poor foundation can only be matched with a poor superstructure, so pay attention to its internal harmony! Don't let the love machine bottleneck!
Now the core of the graphics card has two kinds:
One is AMD-ati core; The other is the core of NVIDIA; Choose according to personal preference. In terms of technology, standards, performance, power consumption and cost performance, everyone likes the former.
From the appearance of the graphics card:
Look at the whole: in simple terms, the criteria for judging the excellent workmanship of the graphics card are that the components on the PCB of the graphics card should be arranged neatly, the solder joints should be clean and uniform, the electrolytic capacitor feet should be inserted low, the gold fingers should be thick, and the card edges should be smooth;
Look at the material: the material of the product is the most direct point to reflect the workmanship of a graphics card, and the quality of the material is the easiest to reflect the workmanship of the graphics card. High-quality graphics cards often use a large number of patch components, because bile capacitors and metal patch resistors are very expensive electronic components, thus ensuring the excellent quality and stability of these graphics cards, and the appearance of products is relatively neat and beautiful;
Look at the workmanship: At present, graphics card manufacturers all use machines to put materials and weld, so the components on the board are generally arranged neatly, but this is only limited to chip components, electrolytic capacitors and other plug-ins will inevitably be staggered, which will affect the cleanliness of the appearance. At this point, the advantages of full-patch design graphics card are fully reflected;
Look at the radiator: a good radiator has fine fins and careful cutting, which can accommodate more heat, straight edges and smooth bottom. The friction of the fan itself is small, and the Harrison of the fan is more. The lower the speed, the lower the noise.
Look at video memory: the brand of video memory is the easiest to identify. Samsung, Hyundai, Infineon and other big brands have excellent quality and stable quality. If you are not sure about the quality, you'd better choose carefully. In terms of specifications, DDR3 is stronger than DDR2, and DR2 is stronger than DDR;