That is a curious mix of results, in some cases the 160GB seems to have a problem, and in others it doesn't. The AS SSD tests look fine for both drives, although the 160's 4K read might be better. Those HD Tune latencies for the 160 do seem alarming. Since the AS SSD results look normal, are you certain that during the HD Tune test on the 160 that nothing was running in the background on that PC that might disturb the test?
Do you use the Intel SSD Toolbox? If so, have you run the Optimizer on the 160, or ran the diagnostic tests on it? If not, you should try it. I assume these drives are running on the same SATA interface, which is what BTW?
You also have two versions of HD Tune Pro in your results, the one is almost two years old. The firmware on your 80GB drive is the older version, although that is not an issue. I'm wondering if you use the Toolbox at all, or at least have not downloaded the latest version, 3.01. What mother board are you using?
Unless you've been using the Toolbox and have been testing this for a while, I suggest looking at it a little more before returning it, if possible.
Yes, I do use the intel SSD toolbox 3.0.1. Perform the diagnostic but found no error and also perform the optimizer. I have rerun all the benchmark software to test it out and the outcome is still the same.
So the conclusion can only be that it is a faulty drive. I have send back the unit for refund.
Thx for the advise.