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Radeon HD 7870 "Tahiti LE" Can Pair with HD 7900 Series in CrossFireX

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#26
Sapphire won't do a Tahiti LE. They hate it. The only other brands are PowerColor (HD 7870 Myst) and VTX3D, and those cards are virtually identical to Club3D's card, since they're made on the same exact production line (TUL).
I will chock that up to Sapphires level of quality that they have taken a pass on these :cool:

IF W1zzard manages to unlock the cores and what have you, what essentially brought me to TPU back in 2006 the Radeon unlocking of an X850, will be huge. I would definitely upgrade my 6870 to a 7870 LE no problem :)
Hehe! "Young Fella" ;) I ended up here looking for info on how to unlock my 9800 Pro to XT. I was completely successful and became a bit of a "guru" on the "Can I unlock mine?" and I never left :pimp: (BTW it was a Sapphire and my still standing loyalty thru every Gen since)
 
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#27
Nobody will be unlocking any HD68** or HD7*** chips - it's impossible, as clearly stated by Wizz above.

I'd be interested to see how 7950+7930 performs in CF vs. 2*7950.

(Yeah, I just called it a 7930 :eek:)
 
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#28
Nice I just ordered a 7970 at last, going to ditch the green camp, Huang had too much of my money lately, need to support AMD just for the sake of the competition.

So after cracking hours of tech reviews and RMA rates... NO SAPPHIRES OR GIGABYTES. Those cheapskates uses poor components that result in abnormalities, like ringing inductors at load and poor OC with artifacts... ASUS, MSI and some others frankly doesn't suffer from it at such rates. Myself I took the OEM one, because of the turbine solution only.
 

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#29
Nice I just ordered a 7970 at last, going to ditch the green camp, Huang had too much of my money lately, need to support AMD just for the sake of the competition.

So after cracking hours of tech reviews and RMA rates... NO SAPPHIRES OR GIGABYTES. Those cheapskates uses poor components that result in abnormalities, like ringing inductors at load and poor OC with artifacts... ASUS, MSI and some others frankly doesn't suffer from it at such rates. Myself I took the OEM one, because of the turbine solution only.
check out tpus database for card stats like length, and performance figures ^^i think every hd7970 is in there if not tell me

http://www.techpowerup.com/gpudb/296/AMD_Radeon_HD_7970.html

http://www.techpowerup.com/gpudb/365/AMD_Radeon_HD_7970_GHz_Edition_(PCIe_3.0_x16).html
 
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#30
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#31

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#32

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#33
Aww those inches... TPU could be more democratic and add metric system option :p
yes its already in, just click on the card and it shows mm right under inches
 
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#34
Don't even try to pull that question up even as a joke for my countrymen, do some history studies... ;).

yes its already in, just click on the card and it shows mm right under inches
Yeah I noticed that now, thanks. I was just looking in the other Other Changes section, where the imperial numbers where only present :), there for I took it as default.
 
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#35
Has anyone tried to crossfire a 7870 tahiti LE with a 7970? I purchased the 7870 not too long ago but after installing it it didnt work (I did turn crossfire on in CCC). Any ideas? Both cards are Sapphire as well.
 
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#36
Sapphire won't do a Tahiti LE. They hate it. The only other brands are PowerColor (HD 7870 Myst) and VTX3D, and those cards are virtually identical to Club3D's card, since they're made on the same exact production line (TUL).
This is an XT SAPPHIRE 100354XTL Radeon HD 7870 XT w/Boost 2GB 2...
Is it not the same as the LE's?
Specs seem the same, maybe I'm missing something

At erocker

"We successfully managed to pair the Club 3D HD 7870 jokerCard with a Radeon HD 7950 and HD 7970 (reference). We casually put it through 3DMark 11 and Sleeping Dogs, and found the contraptions to scale fairly well. We noticed some micro-stutter in 3DMark 11, but Sleeping Dogs felt smooth. This could be great news for current HD 7900 series owners who can upgrade to CrossFire for a modest $249~269. We even tried our luck at unlocking disabled shaders (stream processors), which didn't work. AMD used the mod-proof fuses method to lock the shaders. Check out our Club 3D HD 7870 jokerCard review."

From the OP

What question were u answering there.
 
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#37
What question were u answering there.
The one I quoted. I was wrong, read a couple google searches and must of read people just having problems. Also based on the fact I haven't heard of it being done. But, cool that it works.... I'd kind of like to try it out.
 
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#38
Ya, would be a cheaper upgrade for some folks
(Upgrade as in adding a 2nd or 3rd card)
 
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#39
Sapphire HD 7870 XT

This is an XT SAPPHIRE 100354XTL Radeon HD 7870 XT w/Boost 2GB 2...
Is it not the same as the LE's?
Specs seem the same, maybe I'm missing something

At erocker

"We successfully managed to pair the Club 3D HD 7870 jokerCard with a Radeon HD 7950 and HD 7970 (reference). We casually put it through 3DMark 11 and Sleeping Dogs, and found the contraptions to scale fairly well. We noticed some micro-stutter in 3DMark 11, but Sleeping Dogs felt smooth. This could be great news for current HD 7900 series owners who can upgrade to CrossFire for a modest $249~269. We even tried our luck at unlocking disabled shaders (stream processors), which didn't work. AMD used the mod-proof fuses method to lock the shaders. Check out our Club 3D HD 7870 jokerCard review."

From the OP

What question were u answering there.
Yeah, the Sapphire 7870 XT is a Tahiti LE card:
"The SAPPHIRE HD 7870 XT with Boost delivers a new price:performance point to the series. It is based on AMD's Tahiti architecture with its 256-bit memory interface, and 1536 stream processors and 96 Texture units, unlike the remainder of the HD 7800 series that uses the Pitcairn architecture. Configured with 2GB of high speed GDDR5 memory running at 1500 MHz (6GHz effective) the SAPPPHIRE HD 7870 XT has a core clock of 925MHz which dynamically rises to 975MHz with PowerTune Boost, AMDs dynamic performance enhancement for games."

More info here: http://www.techradar.com/reviews/pc...rds/sapphire-radeon-hd-7870-xt-1130535/review

I was _this_ close to getting it, but ended up getting the PowerColor MYST instead because it was cheaper, and the Sapphire was sold out anyway. I'm told the Sapphire has a better cooler, so that might be worth it for the extra cost of an aftermarket cooler for people planning on OC.
 
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#40
ATM, R7790s and R7870XTs are best-buys, and to a lesser degree GTX660/GTX660Tis, in my country at least, not sure what's best for higher-end, but then again, there's bigger and bigger diminishing returns when going higher end.