[nitrogen]

Do the power consumption numbers cancel out the up-front price advantage?

[valarauca1]

RX480 consumes less power then the GTX1080 so they'd amplify the initial price advantage.

[nitrogen]

Is that total power, or power per GFLOP?

[valarauca1]

Are you seriously asking me to do division for you? Do you own a calculator, cellphone or computer? Or are you actually that helpless?

AMD RX 480 has 5.8TFLOPS @$200 ($37/TFLOP) @231Watt Peak (2.5GFLOPS/Watt)

Nvidia GTX1080 8.9TFLOPS @$600 ($67/TFLOP) @318Watt Peak (2.8GFLOPS/Watt)

See Furmark benchmark for wattage values [1]

Typical KW-H in the US $0.12KW-H [2]. So the delta-cost of GTX1080 vs RX480 will be mitigated by GFLOPS/Watt efficiency savings in 4 years, 4 months. Which on a typical 2, 3, or even 4 year hardware replacement cycle the extra cost will NEVER be re-couped.

[1] http://www.anandtech.com/show/10325/the-nvidia-geforce-gtx-1... for load wattage numbers

[2] http://www.npr.org/sections/money/2011/10/27/141766341/the-p...

[nitrogen]

Thanks for the info.