Those numbers are identical to the A770, and don't match the numbers from the preview[0], so I think that's a copy paste error.

If we use the numbers from the preview:

    |        |Arc A770|Arc B580|RTX 4060|
    |--------|--------|--------|--------|
    |Process |N6      |N5      |N5      |
    |Die Size|406mm^2 |272mm^2 |159mm^2 |
    |Trans.  |21.7B   |19.6B   |18.9B   |
    |Mem Bus |256 bit |192 bit |128 bit |
    |TDP     |225W    |190W    |115W    |
    |~Perf   |90%     |110%    |100%    |

In terms of performance per die area it's a big improvement over A770 but still far behind Nvidia. It's interesting that the transistor density is so much lower than the 4060 despite having the same (or at least similar) process node. Speculating about why that may be:

- Nvidia has better layout. - Intel is using higher performance (larger) transistor libraries or layout in order to hit the higher boost frequencies (2800 vs 2460). - Wider bus interface takes up more space. - The B580 may have 1 render slice and 64-bits of memory bus disabled, and they're not including those transistors in the count, but they still take up area.

[0]: https://www.techpowerup.com/review/intel-arc-b580-battlemage...