There are so many factors that could be at play.

1.) The engineer might have mispoke saying 40 instead of 30.

2.) Sweeney might be respecting some deal.

3.) The PS5 demo might have had some artificial limits set on it, so that it would run at a set standard.  

There is so much room for misunderstanding by Sweeney, a technical limit, the engineer mispeaking, or something totally different.  It's hard to say.

There are so many factors that could be at play.

1.) The engineer might have mispoke saying 40 instead of 30.

2.) Sweeney might be respecting some deal.

3.) The PS5 demo might have had some artificial limits set on it, so that it would run at a set standard.  

There is so much room for misunderstanding by Sweeney, a technical limit, the engineer mispeaking, or something totally different.  It's hard to say.

I have no doubt about that it will outperform the PS5.  As I've said a couple times throughout this thread, it's like a $1500+ laptop compared to a probably $500 PS5.  In fact, the laptop is probably closer to $2,000.

No

Nvidia's CEO already said 2080 Max Q laptops can outperform a PS5, Sweeney doesn't really say anything to full on deny something like that either

Nvidia's CEO already said 2080 Max Q laptops can outperform a PS5, Sweeney doesn't really say anything to full on deny something like that either

https://techreport.com/news/3467613/nvidia-says-2080-max-q-faster-than-next-xbox-ps5/

It sounds like to me Epic's engineers in China basically had that result. Sweeney can't say it outright because it wouldn't look good for the marketing deal he has with Sony. 

Anybody trying to sell you something will obviously paint it in the best possible light, and in a collaboration like this, Epic's not going to say to come out and say "this isn't as good as what you'll get on Xbox Series X or a high spec PC". There's a certain etiquette to these kind of partnerships.

That said, the demo clearly shows PS5 delivering stunning results, and UE5 almost certainly deliver great graphics on XSX and PC as well, so everyone should be happy.

I don't buy a graphics engineer would mistake a video file for an actual demo (running a video file at 40 fps is also bizarre, video files are either 24 fps, 30 fps, or rarely 60 fps). The translated version has the engineers clearly saying the SSD throughput only needs to be in the MB/sec range, not GB/sec. Why in the world would you even bother talking about that over a video file. Sweeney likely has a marketing deal with Sony and doesn't want to rock the boat on that. New AMD GPUs getting outperformed by older Nvidia GPUs in actual practise is nothing new, been happening for ages and Epic already admitted the demo will run fine on a 2070 Super. The PS5 is nothing special GPU wise. 

Anybody trying to sell you something (in this case, PS5 and UE5) is obviously going to portray it in only a positive light, and in a collaboration like this, Epic's not going to say to come out and say "this isn't as good as what you'll get on Xbox Series X or a high spec PC". There's a certain etiquette to these kind of partnerships.

That said, the demo clearly shows PS5 delivering stunning results, and UE5 almost certainly deliver amazing graphics on XSX and PC as well, so everyone should be happy.