Duda SLI or Good graphics

[kynes]

I am always a proponent of a graphics card. There is an effect called microsluttering that makes you feel like you have much fewer frames per second in the case of graphics in SLI or crossfire, so it is always better to have one of 250 than two of 125, even though the two of 125 give higher frame rates.

[Bm4n]

Well I don't know about Kynes, not always, you have examples of graphics in SLI that for less money yield more than others like for example in their day two 560ti yielded more than a 580 and even the 590. Not always because it depends on the prices, but as a rule the higher range has some skyrocketed prices and with a couple of mid-range you can get better performance.

[kynes]

Yes, if I was a defender of SLI, until I suffered it in my flatmate's PC, and you should see the disappointment. The fraps marking 45 fps, and yet the feeling of less than 30. Take a look at this article, it explains part of the problem:

Inside the second: A new look at game benchmarking - The Tech Report - Page 1

An example in video:

[Bm4n]

Umh I had no idea… With which graphics did that happen to you?

[kynes]

Two 5770 in crossfire. Playing Dirt3, if I remember correctly.

[Obione]

I also have a graphics card without SLI/Crossfire, which can be an interesting option but you can always touch the morale of those cons with some games/drivers. You have to know how to appreciate and be aware that sometimes it's not going to work well and you have to use a graphics card. It's precisely for this reason that I'm not convinced by a mid/low-end SLI/Crossfire, at least mid/high-end for when the 2 graphics cards don't work.

[amd125]

Another vote for a single graphics card. The last motherboards I've had I've bought with the possibility of mounting two graphics cards, but in the end I've never done it. I tend to buy mid-range graphics cards, and by the time I can afford another one... it's more cost-effective to sell it and buy another mid-range one that doubles the power of the previous one.

Using two high-end graphics cards does make sense, if you're very demanding and use very high resolutions.

[ferelxyx]

buying new and for a similar price, a single graphics card is always better

two graphics cards are only done when you want to take advantage of something that is becoming outdated and
doesn't perform well, over time you add another to keep going

but they never perform well in all aspects, apart from more heat and consumption

EX: AMD 6870 150W X 2 = 300W - 280 euros approx

this costs you the same and you have the same performance: in all games XFX Radeon HD 6970 2GB GDDR5 - 299 euros

but the best if you can pay are the new ones: Sapphire Radeon HD 7950 OC 3GB GDDR5 - 399 euros 250W, it performs the same or better than an NVIDIA 580 and is cheaper

REVIEWS OF THE 7950
http://www.overclockersclub.com/reviews/xfx_sapphire_hd7950_3gb/
AMD Radeon HD 7950 Review: Up Against GeForce GTX 580 : AMD's Tahiti Pro Goes Heads-Up With Nvidia's GF110
Review Video Card AMD Sapphire HD 7950 3GB OC Edition
Sapphire Radeon HD 7950 3GB GDDR5 Overclocked Version DX11.1 Video Card Review-Hi Tech Legion-Sapphire Radeon HD 7950 3GB GDDR5 Overclocked Version DX11.1 Video Card Review
HIS Radeon HD 7950 review

regards

[Obione]

Or a 7800 that will be released soon and is more in line with the budget.

[Sylver]

Obviously the new series ones are much better, except for the 7770 which is below the 6850 and above that series.