Is 7990 worth buying for 200$ (free electricity )

Kwiksave

member

Activity: 102

Merit: 10

Quote from: killerelite on September 28, 2017, 12:25:51 PM

Quote from: fanatic26 on September 28, 2017, 12:15:02 PM

If and only if you have truly free power would i even come close to that power hog of a card. At the price you quote it has about a 5 month ROI before you make any profits.

Yeah power is truely free (but only for 1 rig max ) , Just like to know whats are the hashrates of this card , and how much likely is it that it burns or melts something due to power consumption

7990 is good for mining ZEC.

Sev18

full member

Activity: 154

Merit: 100

Isn't 200 quite expensive?
I think you should also consider warranty issues.

Undefined31415

sr. member

Activity: 336

Merit: 253

Gone phishing...

When buying older, power-hungry cards, having free electricity is only one consideration. You also have to consider that you may need to obtain a PSU with a higher-rating than if you purchased an equivalent-performing card from a more recent generation.

If you're only looking at 1x 7990, then the following might not be a concern, but for a larger farm in a residential area, you also have to think about powering your rigs such that you don't trip any circuit breakers or cause other problems.

antantti

legendary

Activity: 1176

Merit: 1015

Fact1: 600+ on equihash
Fact2: 1200+ on cryptonight
Fact3: 50+ on dagger (eth/ etc is a nono)

Do the math.

matuson

sr. member

Activity: 420

Merit: 255

The level of production they are about the same to produce as AMD 4 series. But there is a big disadvantage of these cards. They are very energy intensive and strongly heated. You say that the power consumption does not interest you but you need to approach this from the other side. Power supply which can power 4 GPU 4 or 5 series it will be enough for 2 HD 7990. This additional cost. You may have to install additional blowout.

leowonderful

legendary

Activity: 1624

Merit: 1130

Bitcoin FTW!

It's pretty nice for free electricity but due to being a 7000 series card it's going to pull a shit ton of electricity, make sure your PSU can handle it. They also run hot, if it gets to be too much an aftermarket cooler can help a whole lot. IIRC reference card blowers on the 7990s were pretty loud as well.

felixbrucker

hero member

Activity: 700

Merit: 500

I myself got one cheap for 120 a while ago, i had to down clock it a bit and lower the voltage because of the heat. For 200 i'd maybe look into other options.

killerelite

full member

Activity: 205

Merit: 100

Quote from: Metroid on September 28, 2017, 12:44:29 PM

Quote from: killerelite on September 28, 2017, 12:08:21 PM

Is it worth buying a 7990 if I dont have to pay for electricity bills
Anyways anyone has any idea as to what hashrate I should expect ?

Oh yeah, you don't pay cause others pay your bill. There is no free electricity, however i dont think they will complain if you leave that cpu 24/7. Now if you have a farm with them then get ready to be prosecuted hehe

Lets just say the electricity is included in rent

stugots2

full member

Activity: 224

Merit: 102

Too Many Miners Not Enough Electricity

personally I'd say no

Metroid

sr. member

Activity: 2142

Merit: 353

Xtreme Monster

Quote from: killerelite on September 28, 2017, 12:08:21 PM

Is it worth buying a 7990 if I dont have to pay for electricity bills
Anyways anyone has any idea as to what hashrate I should expect ?

Oh yeah, you don't pay cause others pay your bill. There is no free electricity, however i dont think they will complain if you leave that cpu 24/7. Now if you have a farm with them then get ready to be prosecuted hehe

killerelite

full member

Activity: 205

Merit: 100

Quote from: fanatic26 on September 28, 2017, 12:15:02 PM

If and only if you have truly free power would i even come close to that power hog of a card. At the price you quote it has about a 5 month ROI before you make any profits.

Yeah power is truely free (but only for 1 rig max ) , Just like to know whats are the hashrates of this card , and how much likely is it that it burns or melts something due to power consumption

fanatic26

hero member

Activity: 756

Merit: 560

If and only if you have truly free power would i even come close to that power hog of a card. At the price you quote it has about a 5 month ROI before you make any profits.

killerelite

full member

Activity: 205

Merit: 100

Is it worth buying a 7990 if I dont have to pay for electricity bills
Anyways anyone has any idea as to what hashrate I should expect ?

Topic: Is 7990 worth buying for 200$ (free electricity ) (Read 398 times)