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7850vs7870 vs 6970

post #1 of 19
Thread Starter 
Okay so I have £150 ($240) and I am looking for a graphics card to power 3x 1920x1200 monitors in eyefinity,
I can get a reference 7870 for the whole 150(240) or I could get a reference 7850 for 125(200). My ither option is to get a non reference 6970 off ebay for about 130(210). Or I could get a 7850 with a custom cooler for about 150(240). I currently have a power supply with 40A on the 12v rails. And I will probably crossfire and maybe watercool if I get some money in the future.

I have a Phenom II 955 BE processor and a asrock 970 extreme4 motheboard.

Thanks for the help in advance!
post #2 of 19
Thread Starter 
Also would it be worth spending an extra £25($40) and getting a 7870 Tahiti LE?
post #3 of 19
the 7870 is the better card out of those three. 7870 Tahiti LE or not.
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post #4 of 19
Thread Starter 
But is it worth the extra preformance wise? The LE I mean?
post #5 of 19
Quote:
Originally Posted by ZacMDS View Post

But is it worth the extra preformance wise? The LE I mean?
no. they perform exactly the same. but the Tahiti LE overclocks better than the regular 7870.
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post #6 of 19
Quote:
Originally Posted by croy View Post

no. they perform exactly the same. but the Tahiti LE overclocks better than the regular 7870.

what are you saying ? the HD 7870 Tahiti LE has 1536 stream processors at 975 mhz compared to 1280 stream processors at 1000 mhz on HD 7870 Pitcairn. Tahiti LE also has 256 bit memory at 6 Ghz (192 Gb/s) while the HD 7870 Pitcairn has 256 bit memory at 5 Ghz (160 Gb/s). 20% more stream and 20% more bandwidth. 8 - 10% faster at stock and 10 - 12% faster at same clocks. performance is not same.

http://www.hardwareheaven.com/reviews/1651/pg1/sapphire-hd-7870-xt-with-boost-tahiti-le-graphics-card-review-introduction.html
http://www.hardocp.com/article/2013/01/01/powercolor_radeon_hd_7870_myst_edition_review/
http://www.techpowerup.com/reviews/Club_3D/HD_7870_jokerCard_Tahiti_LE/
http://www.techpowerup.com/reviews/VTX3D/Radeon_HD_7870_XT_Black/

The sapphire HD 7870 XT is the best Tahiti LE card. it has a much better cooler than the other 3 tahiti le cards - club3d hd 7870 xt joker, VTX3D HD 7870 Black edition, Powercolor PCS+ MYST HD 7870. these 3 cards use the same design manufactured by TUL corporation and the cooler is not as good as the dual x cooler on sapphire. higher temps and gets loud with overclocking.

sapphire hd 7870 xt
http://www.pixmania.co.uk/uk/uk/13213161/art/sapphire-technology/radeon-hd-7870-xt-with-bo.html?CodePromo=oui&srcid=369
http://www.ksn-online.co.uk/sapphire-radeon-7870-with-boost-2gb-gddr5pci-express-30925mhz-p-14102.html

powercolor pcs+ myst hd 7870
http://www.ebuyer.com/432444-powercolor-hd-7870-myst-pcs-edition-2gb-gddr5-dvi-hdmi-dual-mini-ax78702gbd5-2dhppv3e

VTX3D HD 7870 black edition
http://www.dabs.com/products/best-value-vtx3d-amd-radeon-7870-hd-2gb-pci-express-3-0-hdmi-black-8G9Q.html?src=15
Edited by raghu78 - 1/26/13 at 11:29am
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post #7 of 19
Thread Starter 
Okay well looks like I won't be able to afford the Tahiti, which is a real shame frown.gif But is it worth the extra money getting a reference 7870 over a custom 6970, or should I just get a 7850?
post #8 of 19
reference 7870 and 6970 are equal in performance.
I would go with the 7870 for the lower power consumption
http://www.anandtech.com/bench/Product/548?vs=509
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post #9 of 19
Quote:
Originally Posted by ZacMDS View Post

Okay well looks like I won't be able to afford the Tahiti, which is a real shame frown.gif But is it worth the extra money getting a reference 7870 over a custom 6970, or should I just get a 7850?

stock for stock the HD 7870 is around 12% faster than HD 6970. that gap increases with overclocking as the HD 7870 has much more OC headroom. but the reference HD 7870 cooler can get loud with overclocking.

http://www.techpowerup.com/reviews/Club_3D/HD_7870_jokerCard_Tahiti_LE/28.html

1920 x 1200

HD 7850 - 76
HD 6970 - 82
HD 7870 - 92
HD 7870 tahiti LE - 100

try and atleast spend 170 bucks to get a HD 7870 with a good cooler. you will be very happy you went for a custom cooler.

http://www.pixmania.co.uk/uk/uk/11975273/art/his/radeon-hd-7870-iceq-x-2-g.html?CodePromo=oui&srcid=369

check out this video review of the his hd 7850 iceq x. same cooler as the card i suggested.
http://www.youtube.com/watch?v=n3bjl4jagPc
Edited by raghu78 - 1/27/13 at 4:40am
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post #10 of 19
Thread Starter 
Well I can't afford a custom, and if I could a could get a Tahiti for the same price, so that would obviously be the better option. But I cannot spend more than 150, and even thas now questionable. So between the 7850 (stock) and a custom 6970, would I actually be better getting a 7850 for eyefinity?
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