How to choose a video card

Now people are enthusiastic about DIY machine, that is to say a bit about the video card to buy a point of view, to say how to choose the video card, the first thing you need to understand is what you want to do, you must set a clear bit, do not say for a QQ game to get a 6800U or 7800GTX, or want to use GMA900 to run smoothly " Battlefield 2 "DOOM3" and other games. If the old machine is upgraded under the condition of not moving the motherboard, the AGP card is not worse than the PCI-E card, can be assured to purchase. Personal recommendations upgrade users continue to use AGP, and PCI-E is already the mainstream of the future, the new installed the best consideration pci-e (except economic problems). There is the core speed and memory speed, some cards, such as Sapphire X700pro Platinum version, shadow 6600LE player version, Li Tai px6600gt TDH Extreme and other manufacturers in the factory has been super good, and tested performance is also good, and the price is also fair, These are designed to give a little bit of hands-on capability but want to get some performance. If you like, you can consider. Personally think that want to play "Battlefield 2" "DOOM3" such users, should not be less than 6600GT and X700 PRO, if you want to run smoothly, I am afraid to 6800,7800,x800 these levels, even to SLI and crossfire; If you want to run "World of Warcraft" smoothly This kind of user should have 6600le,6600 Standard Edition, x550,x700; As for the Warcraft 3,cs This kind of users, as long as there is 6200tc,6200 standard version, X300,X300SE can be, as for the Bubble Hall, QQ games such users, as long as the 915g,945g, Nf2igp,k8m800 and other integrated graphics, no need to buy a discrete graphics card!

Anyway, here are a few things:

1, first look at the type. Now the show with the majority of NV and ATI, although the recent via S18 is also selling ads, but the performance of S18 will not be compared with n cards, and a card, plus via drive publishing speed is relatively slow, so via's card is not recommended to buy.

2, look at the structure, if the funds allow the case, should consider a new generation of cards, such as the 6 series of NV, A of the X series. The architecture of those cards is new, even if the speed is not the same as the previous generation, but the performance is absolutely beyond the card.

3, look at the model, there are many rookie think fast is a good thing, it is not, just like P4 and C4, the same speed, but P4 is much stronger than C4. So to see the model, and the graphics card has so-called render tube and render vertices, this is the card to determine the performance of the thing. So both A and n have given up the frequency of ascension, while in the render tube and render vertex

4, look at the memory bit wide, some rookie a look at the video card is 128M is said to be good, but 128m/64bit card performance is not flattering, I have a friend bought a 5700LE is 128m/64bit, then I advised him to buy something else, but he refused to buy, and recently complained to me that Play HF2 effect is very poor. So when you buy a card to see clearly, in the end is 128m/128bit or 128m/64bit, if it is 128m/64bit, that simply buy a 64m/128bit, performance is definitely better than 128m/64bit. However, there are exceptions, that is NV's new card 6200A, it with the advantage of the new architecture, in many environments than the classic 9550, but in addition to this card, other than the same architecture, the same model of cards are 64m/128bit than 128m/64bit better.

5, look at the memory speed and capacity, are 128BIT, and the same type of card will look at the speed and capacity of the video memory, such as two (computer no sound) 9550, the memory bit width is 128BIT, one of which is 64m,2.8ns, and the other is 128m,5ns, if the workmanship is the same material , in the case of non-overclocking, should be the latter performance, but consider overclocking the former is more appropriate to buy, because the performance improvement after overclocking is much larger than the increase in memory size. Tests have shown that the 128M and 64M performance differences are within 10%. And now there are some 128bit/256m products on the market, absolutely no need to ignore it, purely commercial behavior, 256M of performance is less. (Of course, the high-end situation is different, but in the current mainstream 128M enough)

6, if the core/memory frequency of the card can also be a priority, and those cards are also good performance, such as some overclocking version of 9550, its performance is equivalent to 9600, or even 9600XT.

7, memory package, with MICROBGA package in the architecture, model, memory bit width, memory speed and capacity are all the same priority. MICROBGA the memory of the electrical performance is better, good super.

8, heat dissipation method, and all the same situation, the heat pipe is worth considering.

9, workmanship and brand, good card on the capacitance, resistance is dense, rotten card, on the above to see the few electronic components, poor very. Good brand work in place, but also good performance. Attention must not buy fake goods, there are some day-to-day selling ads, but there are not any big brand, such as the "New World xiaoying Pa." There is also attention to the interface, the cards are now basically full-interface (VGA, Tv-out, DVI).

10, on the now popular SLI and Crossfire point of view, even if the SLI and the exchange of fire again, this thing is like memory, there will be incompatible, now there are many people mistakenly think: I first have the SLI board and add a can SLI card on it, after a meter can add a composition of SLI. The idea is wrong, SLI has strict BIOS rules, even after the development of the same, so the future expansion is not necessarily successful, but also for the expensive SLI motherboard bought a single, if not have rice people recommend on the Tankaga motherboard. No need for SLI or crossfire!