3090 benchmarks vs 3080
games +10%
synthetic +20% (3d mark)
mining performance tends to reflect to synthetic performance in difference. if 3080 is 100mhs, then probably 3090 is 120-130mhs.
if 3090 will hash efficient enough @ 133.33mhs.. in a 3 card rig setup, will work like 4x 3080 @ 400mhs..
but i hope 120-130mhs is for 3080ti not for 3090, 3090 will be sweet for 150mhs.
if these asics are still getting bought, a x3 3090 rig and x4 3080 rig is close enough in density. also if you think about resell value and being able to mine other coins 3080 is already a winner and 3090 is reasonable enough versus ETH ASIC.
500mhs eth asic is 4689$ at 750w
https://www.cryptominerbros.com/product/innosilicon-a10-pro-500mh-s-ethash-miner/
knowing these ASICs are getting bought, 3080 is a no brainer to purchase for mining eth
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
I will not be surprised if ASIC trolls will come full force against 30xx series for mining LOL