Quoting zero.counter

Would it have made more sense to compare the 9600gt 1GB DDR3 version to the 9600gt 512MB DDR3 version, in proving differences in memory size?

Sure, it would have been great. Send us one.

The current comparison seems biased..considering memory type differences between the two 1 GB cards and the other card having a smaller memory size yet comparable memory type. bla bla bla

I don't think bias enters the picture. It's an apples to apples comparison for the ATI cards, with an orange thrown in because we were graciously provided with it, plus it gave readers a sense of what sort of performance they can get from a similarly priced card. Both Palit cards are right around $130.

I am aware that the tests are limited to what is on hand and available to you.

That should alone should have answered your original question.