[TrickyRick]

Good luck explaining to a random vendor what the problem is though. They also need to verify that the problem exists and most of them won't have a clue what you're talking about, they'll just turn the computer on and notice that it's working.

If you're a company buying from more qualified vendors then it might be a different story, however at that point consumer law does not apply to you.

[soziawa]

Well depending on how this is turning out there will be benchmarks that show the chips performing slower than before. I've read that many chips will be getting 17% slower in the best case and up to 30% in the worst case. That could be enough to warrant a return of the product.

[TrickyRick]

Yes, however most computers are marketed using GHz numbers, not experienced performance (And in the cases where they are it's relative, like x times faster than before). It's hard to show a 17% slowdown to a store clerk.

Don't get me wrong, I'm all for being able to return a product that's 17% slower today than yesterday, I'm just saying it might be difficult since it's an issue that requires a degree of technical knowledge to understand which most store clerks don't have.

[maksimum]

I agree with most of what you say, but why do you take for granted that it's up to the customer to demonstrate that the product is defective? Furthermore, where does the idea that the customer must be able to communicate this to a uninformed clerk come from?