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SLI Radeon 4850 or 1 Radeon 6850/70 - Page 3

post #21 of 28
Quote:
Originally Posted by appleg33k85 View Post

To give you an idea - 4870's are = to 5770's in performance, crossfire 5770's = 5870's, a 6870 is similar performance to a 5870. As convoluted as that may seem, a 6850/70 will be faster than your 4850's in crossfire while consuming less power and offering significantly more features.

Wrong, a 4870 is faster than a 5770. A crossfire of 4870s is faster than a 6870.
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post #22 of 28
My Q8200 bottlenecks my 6850s.
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post #23 of 28
Quote:
Originally Posted by appleg33k85 View Post

To give you an idea - 4870's are = to 5770's in performance, crossfire 5770's = 5870's, a 6870 is similar performance to a 5870. As convoluted as that may seem, a 6850/70 will be faster than your 4850's in crossfire while consuming less power and offering significantly more features.

I thought 5870 = 6950 1GB? XFX seems to think so! I RMA'd my 5870 and they sent me a brand new 6950 lol. Winning!
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post #24 of 28
Quote:
Originally Posted by kevininsimi View Post

I thought 5870 = 6950 1GB? XFX seems to think so! I RMA'd my 5870 and they sent me a brand new 6950 lol. Winning!

5870 is mildly < 6950.

6870 is the obvious. 4850 x 2 =>= 6870 (maybe 100 points in 3dMark?)

But now with x2 you get heat, power consumption, lack of DX11 (but u get dx10.1 lolol) and restricted airflow.

Totally 6870, also cause you have resale value when you upgrade.
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post #25 of 28
Have none of you considered this from a price perspective? The OP asked about purchasing a used 4850. Because I'm in a similar boat, I checked out eBay and found there are several for sale for around US $45 shipped (buy it nows). Compare that to a 6870 priced at $150.

Pros:
- 2/3 less expensive than 6870
- Considerable raw FPS boost (equivalent to 6870)

Cons:
- Louder, hotter, considerable worse power efficiency (if you're gaming a lot, this might end up hurting you on your power bill)
- Bigger power supply needed (600w vs 400w)
- Possible compatibility issues with x-fire
- No DX11
- Only 512MB vram.

The last two I question as necessarily useful. To me DX10 still looks just as pretty, and when there's a lot of action on the screen, who's going to notice the DX11 crap anyways. As far as the VRAM, would that even be an issue with the level of performance you'll be setting the games to? It won't be ultra high settings, that's for sure. Admittedly I don't know much about how the smaller VRAM impacts more modern titles, so some enlightenment would be appreciated.

It just seems to me if you already have an X-Fire capable MB, big enough power supply, and don't game 24/7 (power bill), why not save $100 bucks and just buy a used 4850 to hold you over until a complete system overhaul?
post #26 of 28
http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-7.html

chose well.
I have 4850x2 (2x1gb) in other pc,and it`s still kickin` ,but I would go with 6870 ,cause later you can ad one more to crossfire ,and it superb price/performance ratio.
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post #27 of 28
Thread Starter 
just order the XFX Double D HD-687A-ZDFC Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150521

STOKED!!! Thanks!
post #28 of 28
6870

EDIT: crap, i'm a minute late, lol
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