According to wccftech it has supposedly 4 Xe3-cores, which would make sense.

About the "underperforming" ...  it is what it has always been:

- There seems to be a 15-20% improvement compared to Xe1 graphics
- There seems to be no improvement compared to Xe2 graphics: the reason is that Xe2 was only available with on-chip-memory and thus had a speed advantage. Meanwhile they removed on-chip-memory again, and as a consequence they are a slower than Xe2 again.

Please note, that there never was a +50% improvement claimed in countless magazines, at least not on a core-to-core basis. The +50% improvement was based on that they added +50% more Xe-cores to Panther Lake (12 Xe-cores) compared to Meteor/Arrow Lake (8 Xe-cores), and then made the claim of +50% more performance. The trick was obvious and cheap - and yet ignored by most "Tech-Websites".

There still seems to be an improvement, as guesstimated above, but not thaaaaaat much ...

Is it me or... is it really under-performing?

"Currently, the Core Ultra 7 336H has only appeared in the Dell Pro Precision 7 16..."