Nvidia bans Hardware Unboxed over their focus on Rasterisation over Ray-tracing
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Yes, Nvidia it's free to not "give" cards to anyone they don't want to. But that's not the problem, it's the "wink deal" of "Just to be clear: This it's not a honest sharing of our hardware with the press to review it, it's a bribe, in exchange to say wherever we want you to say", and then use the same media words as testimonials in their website as a Marketing Material.
Unfortunately when it comes to GPU, there are reasons like ML and NVENC which makes it extremely hard to go with AMD. So Nvidia can do such moves without getting much punishment by consumers. Hopefully AMD can get more competitive in these areas as well so that we have more choice.