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Determine Hynix/Elpida Memory on 290x cards based on Product Number before buying them! (Confirmation needed, please help if you have a 290x) - Page 2

post #11 of 60
Thread Starter 
Quote:
Originally Posted by ShortySmalls View Post

Both of my gigabyte 290x cards are Elpida

GIGABYTE GV-R929XD5-4GD-B
BIOS: 113-C6710150-102

Thanks for the info wink.gif So this would disprove the theory, but that's just the bios part number. Is there any chance you can check the green sticker for the long s/n on the top of your gpu and recheck your memory with hawaiiinfo? I can give you a small btc donation for that if you pm me your address.

Quote:
Originally Posted by Derpinheimer View Post

Why are you collecting Hynix models and how are you acquiring them? Ebay?

Hynix models can hash/mine 15-20% faster than elpida when overclocked wink.gif
I will buy them from any vendor who accepts to check for the P/N for ordering a bigger batch.
Quote:
Originally Posted by eXe.Lilith View Post

All Sapphire R9 290X Tri-X cards use Hynix memory. If you're just looking for some R9 290X with Hynix memory, I'd say go for these.

Tri-X coolers don't generate an airflow and retail coolers are the only ones working when you place the cards next to each other without any space between them.
Edited by 5andr0 - 1/9/14 at 6:01pm
post #12 of 60
Quote:
Originally Posted by 5andr0 View Post

Tri-X coolers don't generate an airflow and retail coolers are the only ones working when you place the cards next to each other without any space between them.

They do generate airflow, see Computerbase , HT4U, and Tom's Hardware Germany. If you meant they don't have radial component of airflow (unlike ASUS' cooltech fan) I'd agree. The Gigabyte had a recall and MSI/HIS/Powercolor aren't available anywhere in large quantity...

This is a great thread idea though

This is the Windforce R9 290X

http://www.guru3d.com/articles_pages/gigabyte_radeon_r9_290x_windforce_3x_oc_review,12.html

This is the ASUS R9 290X

http://www.guru3d.com/articles_pages/asus_radeon_r9_290x_directcuii_oc_review,11.html

ASUS 290X

Gigabyte 290X

Sapphire Tri-X R9 290X


Source: http://www.hardware.fr/news/13513/radeon-r9-290-290x-customs-nos-1ers-tests.html
Edited by AlphaC - 1/9/14 at 8:54pm
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post #13 of 60
Quote:
Originally Posted by 5andr0 View Post

Hynix models can hash/mine 15-20% faster than elpida when overclocked wink.gif

Overclocked to what? 1500MHz? 9001MHz?

If you're implying that Hynix modules are faster clock for clock, that makes no sense. The whole Hynix/Elpida scare was just grandfathered in from Tahiti because the Hynix IC's on average actually clocked much better. It's been proven with Hawaii that either one can be poor or golden. My card has Elpida's and can hit stable clocks much higher than most 290X's. The usual ceiling regardless of Hynix or Elpida has been around 1500MHz, while mine does 1700 without issue.
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post #14 of 60
That matches what I have seen Mr357.

I have seen others saying Hynix gets higher hashrate, but the only way this is possible is if the Hynix modules have lower timings. (unlikely)

I get 890KHash on a 290X, Elpida, @938/1500. I read linux can improve hashrate quite a bit. Beyond that?
post #15 of 60
Thread Starter 
Quote:
Originally Posted by Derpinheimer View Post

That matches what I have seen Mr357.

I have seen others saying Hynix gets higher hashrate, but the only way this is possible is if the Hynix modules have lower timings. (unlikely)

I get 890KHash on a 290X, Elpida, @938/1500. I read linux can improve hashrate quite a bit. Beyond that?
Quote:
Originally Posted by Mr357 View Post

Overclocked to what? 1500MHz? 9001MHz?

If you're implying that Hynix modules are faster clock for clock, that makes no sense. The whole Hynix/Elpida scare was just grandfathered in from Tahiti because the Hynix IC's on average actually clocked much better. It's been proven with Hawaii that either one can be poor or golden. My card has Elpida's and can hit stable clocks much higher than most 290X's. The usual ceiling regardless of Hynix or Elpida has been around 1500MHz, while mine does 1700 without issue.

I've seen nobody in the mining scene who was able to achieve over 890 kh/s with an elpida 290x whereas the hynix model achieves over 1000 kh/s. Is Elpida running with the same clocks like Hynix? -> Yes :O But is it as fast as the Hynix modules with these clocks? Noo!
Fact is: 938/1500 gives you 980 on an elpida and 1025/1500 gives you 1000 kh/s and could be clocked even higher. Elpida will give you 700 kh/s with 1025/1500.
It might not be Elpidas fault, the reason for the hashspeeds could be, that the '-00' models are 'golden' as you say and the '-01' are poor. But why is AMD selling poor -01 290x as real 290x?

Quote:
Originally Posted by AlphaC View Post

They do generate airflow, see Computerbase , HT4U, and Tom's Hardware Germany. If you meant they don't have radial component of airflow (unlike ASUS' cooltech fan) I'd agree.

Ofc. the Tri-X fans blow the **** out of the GPU, but what about the produced heat? It goes wherever it wants to.
The retail cooling system supports the chassis airflow from front (where the fan is) and pushs the heat out of the back. There is no way, that a non retail cooler will survive in a TYAN setup like this:

(IMG by epixoip)
Edited by 5andr0 - 1/10/14 at 2:23am
post #16 of 60
I will post here once I get back home.
Can't provide info right now because I'm on a non-stock BIOS and I can't physically switch it.
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post #17 of 60
Quote:
Originally Posted by 5andr0 View Post




(IMG by epixoip)

Sorry I had to quote this picture.... WTHEEF! thumb.gif

Whats the heat like and how do you keep it cool?
Edited by sinnedone - 1/10/14 at 6:10am
   
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post #18 of 60
Quote:
Originally Posted by 5andr0 View Post

I've seen nobody in the mining scene who was able to achieve over 890 kh/s with an elpida 290x whereas the hynix model achieves over 1000 kh/s. Is Elpida running with the same clocks like Hynix? -> Yes :O But is it as fast as the Hynix modules with these clocks? Noo!
Fact is: 938/1500 gives you 980 on an elpida and 1025/1500 gives you 1000 kh/s and could be clocked even higher. Elpida will give you 700 kh/s with 1025/1500.
It might not be Elpidas fault, the reason for the hashspeeds could be, that the '-00' models are 'golden' as you say and the '-01' are poor. But why is AMD selling poor -01 290x as real 290x?

Show me a Hynix 290X that performs significantly better than an Elpida 290X at the same clocks, on the same OS, and with the same drivers. Then I'll believe you.
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post #19 of 60
Apparently overclocked Hynix are hitting 1900mhz...id like to see benches with that. But im not sure if there any performance gains since theres not memory voltage control (on ref cards at least) - so i would think the memory would actually perform worse at high overclocks.

At least my Elpida memory does worse at 1600mhz than 1500.

Miners seem to think that hynix memory get more hashes..but i doubt it.
post #20 of 60
Quote:
Originally Posted by jerrolds View Post

Apparently overclocked Hynix are hitting 1900mhz...id like to see benches with that. But im not sure if there any performance gains since theres not memory voltage control (on ref cards at least) - so i would think the memory would actually perform worse at high overclocks.

At least my Elpida memory does worse at 1600mhz than 1500.

Miners seem to think that hynix memory get more hashes..but i doubt it.

I have heard that too, but until I see numbers with evidence, it's not true! tongue.gif
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