I should have wrote not much faster, my apologies, if I remember the benchmark for the PNY eco 9800, it was only a little faster in most benchmarks, and equal in a few. But the 5670 has good OC headroom, the eco 9800 has almost none, so if OCing is concerned, the 5670 will match and surpass it.
And again the eco 9800 runs wamr, and this will be a problem if you dont have a well vented case.