...English...

Hello, my name is Federico and I'm new here and I write them a technical question.
Are two video cards HD7770 (Sapphire) in crossfire has the same performance as a HD7990?
What motherboard do you recommend for use with crossfire and AMD FX 8150 microprocessor?
The computer is set up I want to play and use two monitors ViewSonic 2450.

From already thank you very much and hope for your answer forward.


PS: This text was translated by Google Translate, sorry if something is not understood, but I will let down the same text translated into Spanish.

 

...Castellano...

Hola, mi nombre es Federico y soy nuevo aca y les escribo hacerles una pregunta tecnica.
¿dos placas de video HD7770 (Sapphire) en crossfire tiene el mismo rendimiento que una HD7990?
¿Que placa madre me recomienda para usarla con crossfire y un microprocesador AMD FX 8150?
La computadora que me quiero armar  es para jugar y usar dos monitores ViewSonic 2450.

Desde ya muchas gracias y esperare con ansias su respuesta.


PD: Este texto fue traducido por Google Traductor, disculpen si hay algo que no se entiende, Voy a dejar mas abajo el mismo texto traducido al español.

No, HD 7990 > 2xHD 7770, HD 7970 > 2xHD 7770

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Crosshair IV Formula, Phenom II x4 965 w/ Corsair H60, 8 GiB OCZ Platinum DDR3 1600, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64

Looking at 7770 Crossfire Reviews on the internet,

7770 Crossfire is almost = one HD 6970 or HD 7950.

And... HD 7990 = 2x HD 7970

If you want to run Crossfire it is a best choice to get a mainboard with two PCI-E X16 or X8 expansion slots. (990X or 990FX chipset mainboards).

I hope this translates clear to your language.

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Phenom II X6 1090T @ 4.1GHz // ASUS Crosshair V Formula 990FX // Sapphire Radeon HD Dual-X 7970 // Thermaltake Frio w/ push-pull (using Antec Formula 7 Nano Diamond paste!!) // 8GB (2 X 4GB) G.Skill RipJaws DDR3 1600MHz @ 8-9-8-34-21-1T // Corsair TX850 850W // Corsair Force GT 120GB SSD (OS) // Kingston 200 V+ 120GB SSD // WD Caviar Black 1TB // Windows 7 Ult x64 // Logitech X-540