How do I figure out my Mh/s?

[Kelissa]

I just downloaded the stuff today, and am totally new to this.
I have an ATI HD 4670.
How many Mh/s would I get?
Every site I find has a WAYY different answer, from 18kh/s to 50mh/s.
Help?
Thanks

Also, guiminer wont open. Is that because all my blocks in my wallet haven't finished downloading?

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[ltc_foundry]

4670 - not very many, will depend on your .conf; as for guiminer, could be a lot of things.

Sorry, I realize that isn't very helpful.

[Kelissa]

Well can I get an estimate?

[Mangalica]

https://en.bitcoin.it/wiki/Mining_hardware_comparison

According to this, it will be in the 30-50 range. Hard to give a precise figure.

[Kelissa]

so 30,000 - 50,000 kh/s?

[Mangalica]

Yes, for Bitcoin (and other SHA-256) mining anyway.

[ltc_foundry]

From what im seeing count on seeing 30-40 mh.

Split the difference, count on getting 35 or so. YMMV.

FWIW, you'll need to mine for months to generate a single coin at 35 mh. At present difficulty and exchange rate, you're looking at 36 cents a day in fiat value (usd). TDP of a 4670 at load is 85 watts. At 15 cents a kwH your electricity costs will be ~30 cents a day. So you may be able to mine 5 cents worth of profit a day until the difficulty spikes again and then you'll likely be underwater.

TL;DR is ~barely~ worth mining with a 4670, unless you just want to play around with it. In which case you probably wouldnt care about your hashrate. Invest in a couple of caymans.

[Kelissa]

I was thinking more for LTC mining.
help me use this calculator:
http://give-me-ltc.com/calc
So under kh/s I'd put 35000, leave difficulty, change pool fee to 1%, then what?

[ltc_foundry]

your not going to get 35 mh hashing LTC. litecoin doesnt use sha-256 it uses Scrypt. You'll get about 1/1000 the hashrate you would get on hashing sha-256. Count on 30-35 kh hashing LTC. not 35000.

[ltc_foundry]

BTW, you're awfully fucking bossy.

[Mangalica]

I was thinking more for LTC mining.
help me use this calculator:
http://give-me-ltc.com/calc
So under kh/s I'd put 35000, leave difficulty, change pool fee to 1%, then what?

LTC mining is different. It uses scrypt.
There is only a figure for a 4770 at 18kh/s.

https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison

[Kelissa]

Guess it's not worth it after all.
Thanks everyone.