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HD 7870 ghz ed vs. HD 7870 Tahiti LE ed - Page 2

post #11 of 21
Nothing wrong with power color mysts. I have my cards for about 2 months now and haven' t had an major issues. only issue was the cards would throttle with the .031 bios and after flashing to .032, my clocks are stable, no throttling. my highest core clock was 1225/1600 on 1 card and 1210/1600 on crossfired. 60.8% asic on top and 58% on bot card.
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post #12 of 21
Quote:
Originally Posted by HmoobYaj87 View Post

Nothing wrong with power color mysts. I have my cards for about 2 months now and haven' t had an major issues. only issue was the cards would throttle with the .031 bios and after flashing to .032, my clocks are stable, no throttling. my highest core clock was 1225/1600 on 1 card and 1210/1600 on crossfired. 60.8% asic on top and 58% on bot card.

Do you not see a problem if you need to flash a bios to get a working card?

I just don't get it.
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post #13 of 21
i didnt need to flash the bios. with msi afterburner my clocks would stick with powerplay off. but since .032 fixed the throttling, why not flash to it. it wont harm anything as long as you do your research and follow the guides. and always save your stock bios before flashing just incase. if it was a hardware issue then yes I could understand you, but something small like that and you're bashing the card already. and it seems all tahiti le throttles like that and flashing the bios fixed it. check out the 7870 tahiti le club.

.031 bios throttling


.032 bois no throttling

Edited by HmoobYaj87 - 4/5/13 at 8:18pm
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post #14 of 21
Quote:
Originally Posted by HmoobYaj87 View Post

i didnt need to flash the bios. with msi afterburner my clocks would stick with powerplay off. but since .032 fixed the throttling, why not flash to it. it wont harm anything as long as you do your research and follow the guides. and always save your stock bios before flashing just incase. if it was a hardware issue then yes I could understand you, but something small like that and you're bashing the card already. and it seems all tahiti le throttles like that and flashing the bios fixed it. check out the 7870 tahiti le club.

Except I had the .32 bios the entire time; brand new shipment.

It also conflicts with many reports that older BIOSes were better with power management.

http://www.techpowerup.com/gpuz/euk33/
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post #15 of 21
maybe you just got a dud, but doesn't mean the whole line are like that. even the newer tahiti ez edtion was throttling with the .031 bios and that issue was fixed with the .032 bios. I haven't heard of any throttling with the newer .032 and older .028 bios but I haven't try the .028 bios yet so u could try that out.
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post #16 of 21
the HD 7870 Tahiti LE has 20% more stream processors, 1536 on HD 7870 Tahiti LE vs 1280 on HD 7870 Pitcairn. HD 7870 Tahiti LE also has 20% more bandwidth , 256 bit memory at 6 Ghz on HD 7870 Tahiti LE vs 256 bit memory at 5 Ghz on HD 7870 Pitcairn. at stock the performance is 8 - 10% faster then HD 7870. at same clocks the diff is 12 - 13%. the power draw on HD 7870 Tahiti LE is higher as they are got from salvaged Tahiti chips (chips which failed to make it to HD 7950 and HD 7970). the stock voltage is 1.25v on HD 7870 Tahiti LE compared to 1.225 on HD 7870.

the HD 7870 Tahiti LE overclocks well to 1.2 ghz and at those clocks matches a HD 7970(925 Mhz).

http://www.hardwareheaven.com/reviews/1651/pg1/sapphire-hd-7870-xt-with-boost-tahiti-le-graphics-card-review-introduction.html
http://www.techpowerup.com/reviews/Club_3D/HD_7870_jokerCard_Tahiti_LE/31.html
http://www.hardocp.com/article/2013/01/01/powercolor_radeon_hd_7870_myst_edition_review/

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202024
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131487

The reviews are quite positive for both these cards. sapphire has the better cooler . but its out of stock. you could wait for it to come back in stock. put an autonotify and grab it when it comes back in stock. thumb.gif
Edited by raghu78 - 4/5/13 at 8:45pm
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post #17 of 21
post #18 of 21
Quote:
Originally Posted by LucydM4Tr1x View Post

My config in 3DMARK 11

http://www.youtube.com/watch?v=-CEjzNLPl-8&list=UUnqz5Sa8GInlznrz2HfChlg&index=1

i finally touch 9200p smile.gif

http://www.3dmark.com/3dm11/6347931

i hope you enjoy


nice core clock, but I think you are hurting your cards performance abit by underclockig the mem clock. Here's one of cards at 1221/1601 with a graphic score of 9446 and total score of 9687. I know that i have a 2600k, however the cpu don't effect the graphic score.

http://www.3dmark.com/3dm11/6097594
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post #19 of 21
Hi Hmooby i have the 7870 Pitcairn not TAHITI LE im the one who have best scores with PITCAIRN
post #20 of 21
Quote:
Originally Posted by LucydM4Tr1x View Post

Hi Hmooby i have the 7870 Pitcairn not TAHITI LE im the one who have best scores with PITCAIRN

sorry, I didn't check ur sig before posting but very nice score and clocks for a pitcarim based 7870.
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