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Topic: Want legit 7970 testing/benchmarking and tuning for cgminer and Diablominer? - page 3. (Read 19826 times)

sr. member
Activity: 454
Merit: 250
where's my credit for .00001 bitcoin?

maybe i got the decimals wrong..... sorry =/
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
+5 from tonto
+0.11 from burger

Thanks guys.

Current total: 25.1201976.

20BTC sold for around $4.75
5BTC sold for around $6.50
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
Well good news, looks like with 2.6, bitselect() is mapped to the corresponding bfi instruction on GCN archs. But not on VLIW ones. That is nice. So the bfi problem is solved.

This is extremely good news. Less ugly code is always better.
full member
Activity: 195
Merit: 100
A small donation sent. I hope the 7970 card is worth it! =)
sr. member
Activity: 256
Merit: 250
Well good news, looks like with 2.6, bitselect() is mapped to the corresponding bfi instruction on GCN archs. But not on VLIW ones. That is nice. So the bfi problem is solved.

legendary
Activity: 1162
Merit: 1000
DiabloMiner author
According to this thread https://bitcointalksearch.org/topic/my-initial-radeon-hd-7970-mining-benchmarks-56630 someone is cracking 568 MH/s on a mildly overclocked 7970 already.

For those wondering, DiabloMiner already only runs BFI_INT on cards that can do it: it will not do it on 79xx (at least, not until we can change the kernel binary, the instruction is different on GCN).

I was right then, I think. I said 7970 should exceed 500 stock properly tuned, and that guy is doing it with a minor overclock.

well I wouldn't call a 20%+ overclock "mild".  Smiley

Well, what do you call my 5850, stock 725, at 960? Wink
donator
Activity: 1218
Merit: 1079
Gerald Davis
According to this thread https://bitcointalksearch.org/topic/my-initial-radeon-hd-7970-mining-benchmarks-56630 someone is cracking 568 MH/s on a mildly overclocked 7970 already.

For those wondering, DiabloMiner already only runs BFI_INT on cards that can do it: it will not do it on 79xx (at least, not until we can change the kernel binary, the instruction is different on GCN).

I was right then, I think. I said 7970 should exceed 500 stock properly tuned, and that guy is doing it with a minor overclock.

well I wouldn't call a 20%+ overclock "mild".  Smiley
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
According to this thread https://bitcointalksearch.org/topic/my-initial-radeon-hd-7970-mining-benchmarks-56630 someone is cracking 568 MH/s on a mildly overclocked 7970 already.

For those wondering, DiabloMiner already only runs BFI_INT on cards that can do it: it will not do it on 79xx (at least, not until we can change the kernel binary, the instruction is different on GCN).

I was right then, I think. I said 7970 should exceed 500 stock properly tuned, and that guy is doing it with a minor overclock.
hero member
Activity: 896
Merit: 1000
Seal Cub Clubbing Club
According to this thread https://bitcointalksearch.org/topic/my-initial-radeon-hd-7970-mining-benchmarks-56630 someone is cracking 568 MH/s on a mildly overclocked 7970 already.
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
6 x 7670 should get 1.2 ghsh/motherboard, might be worthwhile.

Depending on what that series ends up being, sure. AMD needs to stop with the chimera families. I liked it better when every member of the family was some variant of the main arch.
donator
Activity: 1218
Merit: 1079
Gerald Davis
6 x 7670 should get 1.2 ghsh/motherboard, might be worthwhile.

If you have a lot of space.  Smiley

3x 5970 gets 2.2 to 2.3GH/ rig and are pretty cheap to assemble (no extenders needed w/ right MB).
sr. member
Activity: 270
Merit: 250
6 x 7670 should get 1.2 ghsh/motherboard, might be worthwhile.
hero member
Activity: 609
Merit: 500
I'm pledging 5btc to Diablo.  Will either send it tonight or tomorrow when I get home (if I forget (I have kids - they steal your memory) Diablo has permission to publicly call me out until I pay up. Smiley  )
hero member
Activity: 1316
Merit: 503
Someone is sitting in the shade today...
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

well my reasoning was the new gfx card will be released in the next week or two, causing the older models to drop in price significantly as this is a full refresh not just an upgrade.  So if 7xxx isnt all that hyped up to be for bitcoins, i should be able to score some of the older cards at much lower price otherwise i will just get a pair of 7xxx. The one thing i didnt want to do was holding onto an aging pair of 5970 that will be two generations old.  

If it was some cheaper $150 card i would probably just kept it, but at $300 a pop they can still lose quite a bit of value quickly.




legendary
Activity: 1162
Merit: 1000
DiabloMiner author
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

Why would you do that?  The discussion has been for months that GCN architecture may not be mining friendly.  

Your sold 5970s deliver 1.4 to 1.5GH.  You do realize that it is a pipe dream to think the 7970 will be ANYWHERE near that.  Worse at launch the card is likely going to sell at $549 and even then availability may be difficult. 

Disablo may be able to pull some respectable performance out of the card (eventually) but your sale was downright foolish.  If the 7970 could someday deliver 500 MH that would be decent.  600 MH+ would be amazing.  It isn't going to deliver 1.5GH.  You can't optimize something out of nothing.
He did not say 7970.  He could wait for a 7890 or something that uses VLIW4 which are better at mining. 

78xx is most likely going to be the existing 69xx arch fabbed at 28nm (since it was originally meant for 28nm anyhow). 69xx still doesn't beat SDK 2.1-able VLIW5. That isn't a good trade unless you can get a 6970-like card for under $150 (and then he can go buy four of them).
donator
Activity: 1218
Merit: 1079
Gerald Davis
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

Why would you do that?  The discussion has been for months that GCN architecture may not be mining friendly.  

Your sold 5970s deliver 1.4 to 1.5GH.  You do realize that it is a pipe dream to think the 7970 will be ANYWHERE near that.  Worse at launch the card is likely going to sell at $549 and even then availability may be difficult.  

Disablo may be able to pull some respectable performance out of the card (eventually) but your sale was downright foolish.  If the 7970 could someday deliver 500 MH that would be decent.  600 MH+ would be amazing.  It isn't going to deliver 1.5GH.  You can't optimize something out of nothing.
He did not say 7970.  He could wait for a 7890 or something that uses VLIW4 which are better at mining.  

Well a couple problems w/ that.

1) 7890 or 7870 or 7850 will all be relatively expensive at launch.
2) Launch for the 78xx series isn't until Feb or March and that might be pushed back further.  What is the oppertunity cost of 2x 5970 for 4 months?
3) There is no guarantee that 7870 will use VLIW4 or be any better at mining.  Later reports indicate the 78xx will be GCN also and only the entry level OEM trash (76xx) will be die shrinked VLIW4.  

Like I said all this has been extensively discussed for last month or so.  


Now IF the 78xx series has good performance and IF someone like diablo can tweak mining kernel enough to unlock that performance AND if the cards launch on time and IF AMD is aggressive in pricing then MAYBE the 7850 will be a decent mining cards ... in 3 months.  To sell hands down the best mining card for a hope is .... silly.
member
Activity: 77
Merit: 10
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

Why would you do that?  The discussion has been for months that GCN architecture may not be mining friendly.  

Your sold 5970s deliver 1.4 to 1.5GH.  You do realize that it is a pipe dream to think the 7970 will be ANYWHERE near that.  Worse at launch the card is likely going to sell at $549 and even then availability may be difficult. 

Disablo may be able to pull some respectable performance out of the card (eventually) but your sale was downright foolish.  If the 7970 could someday deliver 500 MH that would be decent.  600 MH+ would be amazing.  It isn't going to deliver 1.5GH.  You can't optimize something out of nothing.
He did not say 7970.  He could wait for a 7890 or something that uses VLIW4 which are better at mining. 
legendary
Activity: 1162
Merit: 1000
DiabloMiner author
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

Why would you do that?  The discussion has been for months that GCN architecture may not be mining friendly.  

Your sold 5970s deliver 1.4 to 1.5GH.  You do realize that it is a pipe dream to think the 7970 will be ANYWHERE near that.  Worse at launch the card is likely going to sell at $549 and even then availability may be difficult. 

Disablo may be able to pull some respectable performance out of the card (eventually) but your sale was downright foolish.  If the 7970 could someday deliver 500 MH that would be decent.  600 MH+ would be amazing.  It isn't going to deliver 1.5GH.  You can't optimize something out of nothing.

I'll have to agree here. Unless I hit it out of the park and find, like, some hidden single cycle "hash ALL the coins" function, I'd still use a 5970 over a 7970 especially since they're two different products... what you want is a 7990 (the dual 7970 board, matching the 6990 and the 5970), which will have a retail price of approximately $9001.
donator
Activity: 1218
Merit: 1079
Gerald Davis
i will be pretty upset if the 7xxx comes out only marginally better for mining. Because i just sold both 5970 at $300 a pop on ebay getting ready for the 7xxx series. Miner is down right now waiting for the new card to release.

Why would you do that?  The discussion has been for months that GCN architecture may not be mining friendly.  

Your sold 5970s deliver 1.4 to 1.5GH.  You do realize that it is a pipe dream to think the 7970 will be ANYWHERE near that.  Worse at launch the card is likely going to sell at $549 and even then availability may be difficult. 

Disablo may be able to pull some respectable performance out of the card (eventually) but your sale was downright foolish.  If the 7970 could someday deliver 500 MH that would be decent.  600 MH+ would be amazing.  It isn't going to deliver 1.5GH.  You can't optimize something out of nothing.
legendary
Activity: 1764
Merit: 1006
you...

...you sold 5970 based on a rumor and news on 79xx?

Huh
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