HD 6770 Four CROSSFIRE!!!!!

Hey guys...I'm planning to build a new pc but I want to do not spend much dollars for a GPU but I want play BF3 at ultra with high FPS.

So pc specs

Case HAF X
Motherboard MSI BIG BANG MARSHAL B3(8 ports for GPU)
CPU CORE I7 3770K
RAM 8 GB 1600Mhz corsair
GPU HD 6770 crossfire x4
SSD 240GB ocz agility 3(2x120GB raid 0)
CPU cooler H100
PSU 850watt cooler master

So I think a quad GPU with 4 GB will be able to beat a GTX 680 and it will be much cheaper
Actually

1x HD 6770 ----Can run the BF3 at high
2x HD 6770 ----Can run BF3 at ultra(low fps)
3x HD 6770 ----Can run BF3 at ultra(increase fps)
4x HD 6770 ----Can run BF3 at ultra(increase fps)

Tell me your opinion
The same pc with GTX 680 was 1750 dollars
And this 1 about 1250
500 bucks down....with much better GPU

the only problem is the few games that dont support it, power usage probably a big factor there, heat, you have to have a motherboard that supports quadfire which by the time you purchased one of those might as well have went with the 680 and a cheaper mobo and cheaper psu.

well i think a mobo that has 8 GPU ports can support 4 GPU
also the only games i play is :

BF3
COD4
LOL
MW3

So....
also the PSU will be ok
HD 6770 has great temp 30 idle and maybe sometimes 27....
the only problem is i don't find H100 for i7 3770K socket.
Also PSU will be 850 CoolerMaster...i think it will be great!

Like I said in your ogre thread in the same subject, I don't hunk you can use more than two of those cards anyway.

Buy one card. Have you some the math anyway on a single card vs 4 of these in the first place?

H100 works in that socket. Its 1155.

I dont think the 6770 supports more than 2 cards.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131445

Discontinued now, but it had 2 crossfire connectors. Might be brand specific?

Get a HAF XM. An Asrock extreme 4 motherboard. I5 3570k. Corsair/seasonic/somethingnotcoolermaster 750w psu. And get a single 670/680. You're spending too much on the system itself and not enough for a graphics card... The 750w psu will handle sli 670/680 if you wanted to later.

Your prime concern is gaming right? Meaning the most expensive part of your build should be the gpu.. I'm surprised no one here mentioned against your I7 choice.

Furthermore. 4 1gb cards doesn't mean you have 4gb vram. You don't. Each and every card needs to load its own textures. Meaning you only have the 1gb available. Bf3 requires more than 1gb vram at 1080p+ to max out at ultra and maintain high fps...

Perhaps the Dirt Edition does. Im shocked they would do that with the low end cards. Still, I wouldnt bother with 2 none the less more.

What doesnt make sense is here in the states that card is $100. 4 of those is $400 and is a 7950 which easily handles BF3 on Ultra at 1920x1080. Less power consumption, heat, and hassle. This idea to crossfire lowly cards isnt a good one.

My ATI branded 5770 (identical in almost every way to a 6770) has 2 crossfire tabs. I don't know if that means it can actually support quad crossfire though.

Also, there's no way a single 5/6770 (even heavily overclocked) is running Battlefield 3 multiplayer on high settings at 1080p unless you're one of those people who think the human eye can't see more than 30fps. I'm running a mash of medium/high settings in the screenshot below and averaging mid-upper 40's (with the occasional drop into the upper 30's) on most maps. That's borderline unplayable. On all high settings I'm lucky if I make it out of the 30's. That's completely unplayable to me. I know my wimpy little tri-core is holding me back a little but not by that much. Even if I had an i7 I doubt I could bump anything other than mesh quality up.

If I had a board that supported crossfire I'd definitely consider picking up a 2nd 5/6770 and crossfiring. If I remember correctly crossfired 5/6770s perform close to a single 5870. That's still a decent card and considering 5/6770s go for $60-$80 on ebay these days, that's some pretty nice price/performance ratio. But starting from scratch there's no point in getting two older mid-range cards when a single newer, faster card can be had for the near the same price.

550Ti, Nvidia's 5770, playing on high meant you had to accept playing the round with high'ish frame rates (40-45) but about 10 minutes in, the reality became clear that 25-30 was the norm. Even Metro saw me dip into the 30s while on high settings.