This depends on the editorial clarity of the review. A review can be an advertisement -- such is the case where the reviewer simply regurgitates the press release, or the author otherwise abandons objectivity.

A review can also be an objective evaluation, not intended to sway the buyer in one direction or the other, but instead providing a clear, reasoned outline of the facts, and the context necessary to understand them.

The latter content has more value to the consumer. In eschewing any attempt to induce behavior on the part of the reader, it is not an advertisement.

Fair enough. However, I feel that this type of ad gives me some concrete, useful and verifiable information to base my choice on (like technical parameters, and problems with use relative to other video cards reviewed in this issue), and not just shiny pictures.

This discussion clarified my understanding of ads at least a bit, so next time I'll be more precise in what I mean. There is a subtype of ads, those click-based advertising that clutter websites providing no value whatsoever to the visitor and distracting from enjoying the content. Those I dislike, though I understand that they're somewhat necessary. I value every site which figures out how to stay free without cluttering itself with ads.