Bitcoin Forum
September 26, 2017, 09:32:23 AM *
News: Latest stable version of Bitcoin Core: 0.15.0.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: 5k series instead of 6k?  (Read 1844 times)
mariokiller64
Jr. Member
*
Offline Offline

Activity: 44


View Profile
June 10, 2011, 08:09:12 AM
 #1

Why are people choosing the Radeon 5k series over the 6k?  I was going to get 2 6870s with a new intel i7 2600k build for bitcoin mining but I'm wondering if I should choose different dual GPUs.

Getting 2 of these
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150521

Should I get something else?  I'm trying to get at least 2 for under 400$, plus this has free shipping and 2 fans on it Cheesy.


Also, What would be the speed of the Hashes It would be going at?  I looked on the Wiki....it shows around 270-320Mhash/s each card depending on clock.
1506418343
Hero Member
*
Offline Offline

Posts: 1506418343

View Profile Personal Message (Offline)

Ignore
1506418343
Reply with quote  #2

1506418343
Report to moderator
1506418343
Hero Member
*
Offline Offline

Posts: 1506418343

View Profile Personal Message (Offline)

Ignore
1506418343
Reply with quote  #2

1506418343
Report to moderator
1506418343
Hero Member
*
Offline Offline

Posts: 1506418343

View Profile Personal Message (Offline)

Ignore
1506418343
Reply with quote  #2

1506418343
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1506418343
Hero Member
*
Offline Offline

Posts: 1506418343

View Profile Personal Message (Offline)

Ignore
1506418343
Reply with quote  #2

1506418343
Report to moderator
comnam90
Newbie
*
Offline Offline

Activity: 12


View Profile
June 10, 2011, 08:49:02 AM
 #2

The 58xx series cards have a lot more stream processors than the 68xx series, so they produce higher MH/s rates. I have been testing a 5850 and at 850MHz on core i get 330MH/s. I have just brought a 6870 which i will be testing tomorrow, i can report back tomorrow at to the difference.

5850 = 1440 stream processors
6850 = 960      "              "
6870 = 1120     "             "
aznsniper911
Jr. Member
*
Offline Offline

Activity: 36


View Profile
June 10, 2011, 08:52:24 AM
 #3

The 58xx series cards have a lot more stream processors than the 68xx series, so they produce higher MH/s rates. I have been testing a 5850 and at 850MHz on core i get 330MH/s. I have just brought a 6870 which i will be testing tomorrow, i can report back tomorrow at to the difference.

5850 = 1440 stream processors
6850 = 960      "              "
6870 = 1120     "             "
That and it's cheaper.
mariokiller64
Jr. Member
*
Offline Offline

Activity: 44


View Profile
June 10, 2011, 06:38:04 PM
 #4

So, what's a dual 5k series GPU I Can get for under 400$ that would be faster than dual 6870s  Grin

Guessing 2 of these?
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125318

I'm looking at the GPU mining comparison charts and it seems like those 2 cards aren't far off from each other.
https://en.bitcoin.it/wiki/Mining_hardware_comparison
Also, I would have to overclock the 5850 up to maybe 900MHZ before hitting 300Mhash/s.....hmm
So....5850 or 6870?
comnam90
Newbie
*
Offline Offline

Activity: 12


View Profile
June 10, 2011, 09:24:56 PM
 #5

Also, I would have to overclock the 5850 up to maybe 900MHZ before hitting 300Mhash/s.....hmm
So....5850 or 6870?
Like i previously said, my 5850 at only 850MHz gets 330MH/s. I'm going to be testing 6870 today to see how much OC is required to reach the 300MH/s mark.
michaelmclees
Hero Member
*****
Offline Offline

Activity: 629


View Profile
June 10, 2011, 09:56:36 PM
 #6


Good luck getting some.
mariokiller64
Jr. Member
*
Offline Offline

Activity: 44


View Profile
June 10, 2011, 10:15:41 PM
 #7

That's what I'm worried about Sad, when do they restock?   Sad

Also, I would have to overclock the 5850 up to maybe 900MHZ before hitting 300Mhash/s.....hmm
So....5850 or 6870?
Like i previously said, my 5850 at only 850MHz gets 330MH/s. I'm going to be testing 6870 today to see how much OC is required to reach the 300MH/s mark.
Report back on that to me please, that would be great Cheesy.
xaxistech
Sr. Member
****
Offline Offline

Activity: 280


View Profile
June 11, 2011, 05:29:09 AM
 #8

Well if I had to choose between a 5870 and a 6950, I would go with the 6950. It is the same price, and IF bitcoin ever fails, you can just resell the parts for a minimal loss. Also, in regular computing (F@H/gaming) the 6950 is about 35% faster than a 6950.

               ▄▄████████▄▄
             ▄██████████████▄
            ███████▀ ▀▀███████▄
           ███████ ▄██▄▄ ▀████▄
          ████████ ▄█ ▀▀▀█▄ ▀▀██▄
          ███████▀ █▄ ▀█ ▀███ ███▄
         ██▄█████ ████▄ █▄ █▀ ███
        ███████▄ ▀███▄ ▄▄█ ▄███
      ▄███████████▄▄ ▀████▀ █████
    ▄████████████████▄▄ ▀█ ▄████▀
  ▄█████████▀ ▀███████████▄ ████▀
▄██████▀▀▀      ▀██████████████▀
▀▀▀▀▀             ▀▀█████████▀▀
        ▄▄▀▀██▀▀▄▄
    ▄▄▀▀▄▄▀▀▄▄▀▀▄▄▀▀▄▄
 ████████████████████████
  ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
▄██▀█████████████████████
███▄██████████▀▄▄▄▄▄▄▄▄▄▄▄
██▀███████████ █  ████████
██▄███████████▄▀▀▀▀▀▀▀▀▀▀▀
▀██▀██████████████████▀██
 ▀██▄████████████████▄██▀
   ▀██▄▀██████████▀▄██▀
     ▀████▄▄██▄▄████▀
      █▀  ▀▀▀▀▀▀  ▀█
          █
         ███
        █████
███████ ██████▄
   ████    ▀████
   ████    ▄███▀
   ████ ██████▄▄
   ████     ▀████
   ████     ▄████
███████ ████████▀
  █████ ▀▀▀▀▀▀▀
   ███
    █
mautobu
Jr. Member
*
Offline Offline

Activity: 44



View Profile
June 11, 2011, 05:50:54 AM
 #9

Quote
the 6950 is about 35% faster than a 6950.

You should fix this so I understand you.
comnam90
Newbie
*
Offline Offline

Activity: 12


View Profile
June 11, 2011, 06:21:27 AM
 #10

Ok so far, at an OC of 1000MHz on the core of the 6870, im only hitting 290MH/s. At stock speeds it only gets 260MH/s. 5850 is a much better choice, of a 5870 if you can afford one.
kcobra
Member
**
Offline Offline

Activity: 87


View Profile
June 11, 2011, 03:04:28 PM
 #11

Problem is finding a 5850 or 5870. The 6870 is basically equal to the 5830 for btc mining. Same number of shaders. Running a 6870 at the same 975mhz core clock and 300mhz memory clock as my 5830's gives me ~296 mh/s on the 6870 while I get ~301 mh/s on the 5830's. So basically a wash, hashing wise. Of course the 6870 is around $50 more than those Sapphire 5830's that Newegg had.
mariokiller64
Jr. Member
*
Offline Offline

Activity: 44


View Profile
June 11, 2011, 05:34:06 PM
 #12

Can't find dual 5850s anywhere for under 400$  Sad.
Maybe I'll just get what I was gonna get and mine at around 550-600 Mhash/s instead of 600+
Basiley
Jr. Member
*
Offline Offline

Activity: 42


View Profile
June 11, 2011, 06:28:34 PM
 #13

Problem is finding a 5850 or 5870. The 6870 is basically equal to the 5830 for btc mining. Same number of shaders. Running a 6870 at the same 975mhz core clock and 300mhz memory clock as my 5830's gives me ~296 mh/s on the 6870 while I get ~301 mh/s on the 5830's. So basically a wash, hashing wise. Of course the 6870 is around $50 more than those Sapphire 5830's that Newegg had.
69x0 uses more [bit slower]VLIW4 shaders instead of VLIW5 shaders in 58x0, performing comparable.
but 68x0 consume notable less power per.
EpicNoob
Jr. Member
*
Offline Offline

Activity: 42


View Profile
June 12, 2011, 08:20:16 AM
 #14

n/a
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!