are all 7950's good? or just gigabyte?

[clvrtrvr]

a card went on sale locally and this is it..

XFX Radeon HD 7950 Double D Video Card - 3072MB, GDDR5, PCI Express 3.0 (x16), 1x DVI, 1x HDMI, 2x Mini DisplayPort, DirectX 11, Dual-Slot, Eyefinity, CrossFireX Ready, Includes 2 Games (FX-795A-TDFC)

my question is, will it perform like the gigabyte version? what makes the gigabyte version so good?

Thanks

[HD7970]

Asus 7970DirectCu very good card

[synapseattack]

If you push them right you can get 600+ MH/s out of them if you have good airflow and such. That is without pushing them too hard. I have two Sapphire HD 7950 Flex which do alright. But if you are looking to buy something you might want to take a look at a 16 chip Avalon sale or something. You'll get more hashing per dollar.

[clvrtrvr]

im still a bit of a newb as im just starting. any info on the 16 chip avalon that's worth reading?

[synapseattack]

https://bitcointalk.org/index.php?topic=190731.0 has some information. The Custom Hardware section https://bitcointalk.org/index.php?board=76.0 has group buys and some of the group buys also assemble for you.

I recommend spending a LOT of time reading all the different open and closed sales that are active or over and pay attention to the Rep of the person offering the sale and how they are doing it. If they are not using Escrow then be wary. Yes there are some that will work out fine but use Escrow


Escrow
Escrow
Escrow

[clvrtrvr]

are stuff like this any good?

http://www.ebay.ca/itm/ButterflyLabs-BitForce-5-GH-s-Bitcoin-Miner-ASIC-/261219408960?pt=LH_DefaultDomain_0&hash=item3cd1e3dc40&_uhb=1

[yamer]

look for good cooling

[matt4054]

are stuff like this any good?

http://www.ebay.ca/itm/ButterflyLabs-BitForce-5-GH-s-Bitcoin-Miner-ASIC-/261219408960?pt=LH_DefaultDomain_0&hash=item3cd1e3dc40&_uhb=1

Notice that part: THE ITEM WILL BE SHIPPED IN JULY (2 MONTHS).

IMHO this is *highly* dubious as no one can be sure that BFL will have shipped by then.
If you are new here, they promised September, then October, then November, then December, then January, then February, then March, then April, and now what month is it again?

[myway]

 ;D7990 would be OK.

[jezagee]

GPU is dead

[miner_btc]

It's not really worth it to mine on video cards any more as the difficulty has spiked since ASICs came into being. Instead of buying a new video card for the purpose of mining, I would reccomend some sort of ASIC device. Even a low end one will give you MUCH more hash/$ than any video card.

[clvrtrvr]

It's not really worth it to mine on video cards any more as the difficulty has spiked since ASICs came into being. Instead of buying a new video card for the purpose of mining, I would reccomend some sort of ASIC device. Even a low end one will give you MUCH more hash/$ than any video card.

what would you recommend in an ASIC device? maybe point me where i could purchase said item?

[clvrtrvr]

So let me get this straight.

- Buy avalon chips in a group buy
- send them to burnin ( or however you spell it)
- He mounts them to a board for me
- he sends me the end result and i start mining

correct? say i buy 20 chips, its only 300 to start? not including shipping and fees etc.

[notaek]

GPU is dead

GPU is not dead.  For Bitcoin GPU is heading out the door, but for scrypt coins GPUs are still very much alive. 

Look here: http://www.coinwarz.com/cryptocurrency/?sha256HashRate=1320&sha256Power=500.00&sha256PowerCost=0.3&scryptHashRate=1320&scryptPower=500.00&scryptPowerCost=0.3

You can see that Litecoin is around the same profitiability as BTC and it is ASIC resistant.  At the top is WDC which could be a very good way to go with GPUs considering it is 140% as profitable as BTC.

[mafiozoi]

I have to agree GPUs are still alive for scrypt.. I have 7950HD Sapphire it works great

[chalupa_batman]

mine are msi (twin frozr), they work pretty good, 600mh/s each easy, no problems

[Bobbll]

Try CGMINER 

[bitbyebit]

I have to agree GPUs are still alive for scrypt.. I have 7950HD Sapphire it works great