The New Compute Metric: Price-Per-Coin
The new performance metric for the compute world is now Price-Per-Coin.
In case you haven't noticed, high end AMD Radeon GPUs are getting increasingly hard to find and ever more expensive. I just found this out this hard fact this morning when trying to gather the parts for a Litecoin miner. A single Litecoin is worth about $40 right now, and the Litecoin market is more than one billion dollars.
My old AMD 6770 GPU can only mine one coin in 15 days or so. I need something powerful.
Go to https://litecoin.info/Mining_hardware_comparison, and you will see the relative performance of GPU miners. You buy hardware based on the Price-Per-Coin metric if you want to have a good profit margin as a miner. AMD is more than 2x faster than Nvidia. Intel Haswell is about 10% of AMD and can be totally ignored.
BTW, Litecoin is designed to be prohibitively expensive to mine with ASIC.