6800 are just way too expensive. Plus there is no stock at all where i'm at. A 6800 non xt brand new on newegg is 1100usd or about. Is the GPU market rational ? Lets have a look at "sold" North American ebay sales this week: (quick averages of what looks to be actual sales not including shipping)
-1080ti = 650 to 750 cad
-5700/xt = 700/900 cad
-3060ti = 1000 cad
-3070 = 1100 cad
-3080 = 1700-1800 cad
-6800/xt = 1200/1800 cad
-580 8GB = 200-300 cad
ETH hashrate now up 15% for the month, at least. Still climbing. Anybody building a mine now is either very optimistic or I am very pessimistic. However, ETH profits have been consistently very high for very very very long now. There are chip shortages everywhere. Will a RX 5700 be worth the same as my 2004 BMW X3 soon? Is that not an interesting perspective...
well it is hard to say what is going to happen a lot depends on Eth earn price per mh.
today on viabtc it is around 8.08 cents an mh
so with round numbers in a way that make profits a bit less than real
AMD 5500xt = 25 x 8 or $2.00 a day burns 2.0 kwatts at 20 cents is 40 cents 1.60 profit
AMD 5600xt = 40 x 8 or $3.20 a day burns 2.3 kwatts at 20 cents is 46 cents 2.74 profit
Amd 5700xt = 50 x 8 or $4.00 a day burns 2.7 kwatts at 20 cents is 54 cents 3.56 profit
Nvidia 3060ti = 60 x 8 or $4.80 a day burns 3.4 kwatts at 20 cents is 68 cents 4.12 profit
Nvidia 3070 = 64 x 8 or $5.12 a day burns 3.6 kwatts at 20 cents is 72 cents 4.40 profit
Nvidia 3080 = 95 x 8 or $7.60 a day burns 5.8 kwatts at 20 cents is 1.16 6.46 profit
Nvidia 3090 = 120 x 8 or $9.60 a day burns 8.0 kwatts at 20 cents is 1.60 8.00 profit
5500 at 150 days 240 profit
5600 at 150 days 411 profit
5700 at 150 days 534 profit
3060ti at 150 days 618 profit
3070 at 150 days 660 profit
3080 at 150 days 969 profit
3090 at 150 days 1200 profit
based on these numbers
I found 1 3070 that may be worth buying on eBay
https://www.ebay.com/itm/NeW-EVGA-GeForce-RTX-3070-FTW3-ULTRA-GAMING-8GB-GDDR6-Graphics-Card-RDY2SHIP/133652058586?