Marketing the PlayStation 4 Pro as a 4K gaming machine isn't misleading, Sony says.

Speaking with Digital Spy, CEO of Sony Interactive Entertainment Andrew House said that although the majority of games on PS4 Pro will be upscaled to 4K, he didn't believe the phrase "4K gaming" was putting consumers wrong.

“I think that whatever the term is, it’s a question of whether people see a demonstrable difference in the game experience or not, rather than the term we use to apply to it," House said.

"I think that’s what people are looking for and they’ll make their judgement as to whether that’s working for them or not.”

It's easy to see why Sony's own marketing could cause confusion. From the official PS4 Pro site: "With a 4K TV, PS4 games deliver unprecedented visual precision, such as 4K quality resolution to give remarkable clarity down to the tiniest detail."

That said, only those sitting very close to a very large TV will be able to discern 4K from lower resolutions anyway. That's probably what allowed Guerrilla Games art director Jan-Bart Van Beek to say that Horizon Zero Dawn's recent PS4 Pro demo wasn’t running at native 4K resolution, but that it was “so close” it’d be hard to tell.

House also said the lack of a 4K Blu-ray drive in the PS4 Pro was simply down to metrics (and cost, no doubt).

"When I look at other ways people are using their PS4 – video content is absolutely the number two use of people's time on the console," he said.

"But it is 5:1 in favour of streaming video versus packaged media. We looked at that and said that's probably where we should place our emphasis."