Hello, how many of these R9 cards do have the artefacts? From the reading on the internet it looks like that almost all of them. Does it depend on the model and manufacturer? I would like to get some R9 270X or 280 from MSI with the silent Twin Frozer cooler but am afraid that it will produce artefacts and I will have to return it multiple times which is not exactly how I would like to spend my time. So just asking how big is the probability I will get a faulty one.