I want to upgrade my pc with a more powerful graphics card and I have a bit of a dilemma.I am stuck betwen buying a gtx460 or 2 1 gb gt240's and use them in sli.I want some advice on that.what is the best solution?
Answer by Thor Wiingaard · Jun 30, 2011 at 05:29 PM
SLI doesn't fully utilize your cards. Neither does CrossfireX although it's slightly more effective. I'd go with a single card since there are many applications where SLI and CrossfireX can't be utilized, so it will only use one card instead of both. Generally SLI is used if you already have one card and don't want to buy a very expensive card to upgrade, instead you buy a similar card and dubble up. But if you really want two cards I would strongly advise you to choose two AMD cards because CrossfireX is just superior to SLI in just about every way shape or form.
Answer by HHBones · Jun 30, 2011 at 07:43 PM
The reality of the situation is that having two cards increases overhead, because they have to sync their actions. Therefore, if you have a card operating at 100% capacity, and you add another, with Nvidia you'll notice that it's only ~125% of original performance, a measly 25% gain. ATI is a little better, with a 33% gain, but it's still negligible. A single card will operate much faster.