(SOLVED) GPU Recommendations for miner.

[Mogumodz]

Hello world;

A friend of mine wants to set up a few Litecoin rigs. I'm in the UK as is my friend.

Would a few guru's give me a few tips on what is a good GPU now, I gave up GPU mining with a 6950 in March myself.

I see people saying the 7950's have better KH/s - W ratio, is that still the case as I haven't really looked at the new AMD range of cards for mining.

Thanks.

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[skleven]

If you can find any secondhand 7950`s, it`s probably the best way to go. In the new range i belive it`s the 280X(basicly a cheaper 7970) is the best. Now days it`s quite ok to mine scrypt with gpu`s btw.

[zedicus]

If you can find any secondhand 7950`s, it`s probably the best way to go. In the new range i belive it`s the 280X(basicly a cheaper 7970) is the best. Now days it`s quite ok to mine scrypt with gpu`s btw.

^^ Would you wait for the non reference cards to come out if you were in the market for a 290?

Or would you just buy the reference ones that are out now?

[hieroglyph]

I'll be following this thread in hopes to get a couple quality rigs for myself also.  Interested to see what others suggest.  I regret not contacting a friend that wanted to sell me his rigs but funds were right then... 

[defaced]

if you can find 280x's that seems the most bang for the buck.

[Mogumodz]

Thanks for the responses, I kept and eye here before I ordered but it did seem to go cold and ordered with what info I gathered.

I ended up ordering 1 x Sapphire 7950 for my friend just to get the order in on Saturday, it was what a few people had suggested if I could find any.

The build list for any one interested was;

Asrock AM3+ 970 Extreme 4
Sapphire 7950 3GB - 11196 19 20G
Seasonic 850W M12II PSU
4 GB 1333 Generic Ram
AMD Sempron 145 Single Core CPU

I only got the one card as I couldn't find too much info on the latest 280X / 290X range, but he can add to it later with the PSU size.


After a few more days of asking about, I think I will be getting 2 x 280X cards and see how it goes and maybe add more over time if needed for a small GPU rig, until scrypt FPGAs come out and then I have two nifty gaming pc upgrades.

I'm tempted to replace the 970 Extreme 4 with a Gigabyte 990-FXA-UD3 board for my own rig build on a friends recommendation, others seem to be happy with it the Extreme 4 so we'll see at the time as it's just for mining.

[zedicus]

if you can find 280x's that seems the most bang for the buck.

The egg is dry.. i ordered 6 on the 29th from this other retailer but they havent taken the funds from my account yet so im not sure whats up.. got my fingers crossed. I went with Vapor-x's.

[skleven]

If you can find any secondhand 7950`s, it`s probably the best way to go. In the new range i belive it`s the 280X(basicly a cheaper 7970) is the best. Now days it`s quite ok to mine scrypt with gpu`s btw.

^^ Would you wait for the non reference cards to come out if you were in the market for a 290?

Or would you just buy the reference ones that are out now?

Cooling and noise is an issue with the current 290 and 290X. So i would wait for some Vapor-X or maybe Toxic.

[Mogumodz]

Little update, I built 2 rigs (One for a friend and I). As I couldn't get any PCI-e risers I've stuck with 2 cards per board atm, once the PCI-e risers arrive I will raise the front support bar and separate the cards and be able to put more GPU's on each rig.

Parts lists for the 2 boards are;

Left Board
Gigabyte GA-970A-DS3P Socket AM3+
Sapphire TOXIC R9 280X x 2
Powercool X-Viper 950W Modular 80+ Bronze
4 GB 1333 Generic Ram
AMD Sempron 145 Single Core CPU
USB Stick for BAMT

Right Board
Asrock AM3+ 970 Extreme 4
Sapphire TOXIC R9 280X x 2
Seasonic 850W M12II PSU
4 GB 1333 Generic Ram
AMD Sempron 145 Single Core CPU
USB Stick for BAMT

Each rig gets about 1400kh/s but I haven't fiddled much with settings/config yet.