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by matt-p 492 days ago
Basically it seems to be worth about 1.333X as much as a 4090, as it has about ~1.4X performance ~1.333X the VRAM but uses about 1.4X the power. So 4090 is still a reasonable option.

One thing that concerns me is running these dies at 500w+; that seems like an awful amount of heat over a very small area and increasing the power (vs the 4090) must mean also decreasing it's lifetime.
1 comments
shikharbhardwaj 492 days ago
We're already seeing reports of the 12HPWR connector not being able to handle the power the 5090 demands [1]. It seems that for this generation, NVIDIA left little headroom. Might be best to run these undervolted to have some of that headroom back.

[1]: https://www.youtube.com/watch?v=Ndmoi1s0ZaY

[2]: https://youtu.be/8PDYJI0W6Gk?t=430

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Sakos 492 days ago
It's more that it's perfectly happy sending all 600w over a single wire if the resistance on the other wires is high enough. Since there's a single point of connection to the card and a single shunt, there's no way to do load balancing like when there used to be two or even three 8 pin cables.
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