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Crossfire 6870 or get a 7870

Last response: in Graphics & Displays
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March 5, 2012 5:38:01 AM

i got a 6870 about a month ago but i should have waited for the 7870 but i have 3 questions
1. should i get a 7870 or another 6870 for crossfire if i get a 1080p tv my tv now is 720p? (Main Question)
2. how much better is the 7870 then the 6870?
3. if i crossfire my 1gb 6870 will a get a 2gb?

and i have a 8120 (another thing i messed up with for a gamimg pc lol) will it bottleneck this or will bf3 play great with my system i really dont need a awnser for this but if you know and have the time do it...

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March 5, 2012 5:48:51 AM

melikepie said:
i dont get it, so what do you think i should do?

those were the reviews of the 7870 and the 7850.
They should come at around a $300 price range.I would try to sell the 6870 and save up for a 7870.
You could have the option of CF it(amd 7870) later down the road.
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March 5, 2012 5:55:33 AM

ghnader hsmithot said:
those were the reviews of the 7870 and the 7850.
They should come at around a $300 price range.I would try to sell the 6870 and save up for a 7870.
You could have the option of CF it(amd 7870) later down the road.

well i have a issue with that, first i dont need to much graphics power im fine in the 30+ fps and medium settings, second i have a 8400gs to use other then this so you can tell i dont have much other considering this is my only computer that can even run bf3 my other ones a intel atom laptop and third i paid $150 for mine and so i might not need to get it but sometime i will get a new pc or graphics card some time and for now i might get another 6870 beacause 2 6870's vs 7870 what would you pick?

i just dont think the 7870 is worth it
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March 5, 2012 6:12:12 AM

2 hd 6870 will be better then single hd 7870 in performance it will be like a hd 7950 in performance or less so short answer is that you should go with 2xhd 6870.:) 
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March 5, 2012 6:13:49 AM

sunnk said:
2 hd 6870 will be better then single hd 7870 in performance it will be like a hd 7950 in performance or less so short answer is that you should go with 2xhd 6870.:) 

thats what im thinking, i really dont need 2gb of memory so i would go with the better cards anyway i got the 6870 for half the price of the 7870
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March 5, 2012 6:24:53 AM

melikepie said:
well i have a issue with that, first i dont need to much graphics power im fine in the 30+ fps and medium settings, second i have a 8400gs to use other then this so you can tell i dont have much other considering this is my only computer that can even run bf3 my other ones a intel atom laptop and third i paid $150 for mine and so i might not need to get it but sometime i will get a new pc or graphics card some time and for now i might get another 6870 beacause 2 6870's vs 7870 what would you pick?

i just dont think the 7870 is worth it

I still think its worth it due to its newer technology.It has a longer life span.With a new 7870 down the road you could possibly hold out for a more longer time interval.As i said i am giving my opinion.

But if you dont think its worth it then i wont say anymore.
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March 5, 2012 6:48:57 AM

2*6870 will be more than enough for 30+ FPS on medium settings

but if i didn't have any VGA , and would want to buy one right now i would pick the 7870 but since u already own a 6870 the wisest choice would be to crossfire
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March 5, 2012 8:29:19 PM

I would say just go for the second 6870. Save the $100, and avoid having to sell it off for loss of money. That and you will be netting easily 60fps+ on all titles at 720p, and even 1080p except a few titles on MAX settings. 6870CF is comparable to a GTX580 give or take 20%.

As for the FX-8120, you'll be fine there won't be a bottleneck unless the game is extremely cpu limited (IE: Starcraft 2 which uses only 2 threads.)
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March 18, 2012 7:20:13 AM

Figured I'd use this post since I have a similar question but different situation and looking for someone to bounce me some thoughts to help me make a decision.

I want to play BF3 on Eyefinity (5760x1080) resolution. Right now all I have is a 5770. I can pull about 18fps on low and 13-14 on medium settings.

I can get a Sapphire 6850 2GB for about $170, and a second for about $210... SO two for about $380... call it $400 after shipping. Or ONE 7870 for assuming $350. I don't want to pay $700 right now on a video card so that's a no go. If the 7870 will run my setup at medium settings (maybe even low) at more than 30fps I'll go for that and get a second later, but if not, I'd rather spend the money and get 2 6850s and be able to play until I have the funds to upgrade all over again.

I'm also worried about the requirements for adapters to run three monitors off the 7870. I have a $100 displayport to DVI adapter that will be worthless with a 7870 correct? I'll have to buy two more that are mini-displayport adapters? That drastically adds to the price!

Not to mention, my PSU only has two 6 pin connectors so I'll have to upgrade the PSU to power two 7870s as well. (they take two a piece)

Thoughts?

Thanks in advance for advice.

Note: According to this page: http://www.bit-tech.net/hardware/2012/03/05/amd-radeon-... it should handle Skyrim at above 30fps in eyefinity, but what about BF3. What do you think?
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