Re: Process-invariant hardware metric: hash-meters per second (η-factor)
Can we try to figure out this metric for the Block Erupter chips? I can't find the die area, but here are the other figures:
Judging by these pictures, it looks really small:
These are some numbers derived from the RTL design.
We know that the chips ended up hashing at around a third of that (336 MH/s), but the power estimate seems accurate (6-8 J/GH).
Our chips
Generation 1: Block Eruptor. 130nm with 6-8J/GH. Each chip's rated frequency is 336MHz at 1.05V. It translates to 336MH/s because it does one hash per cycle. The chips work stable and well at 392MH/s at 1.15V. Further overclocking needs proper handling of heat and power supply.
Generation 1: Block Eruptor. 130nm with 6-8J/GH. Each chip's rated frequency is 336MHz at 1.05V. It translates to 336MH/s because it does one hash per cycle. The chips work stable and well at 392MH/s at 1.15V. Further overclocking needs proper handling of heat and power supply.
Judging by these pictures, it looks really small:
Update
After a long and anxious waiting, we have finally got our packaged chip samples at hand. Everyone would be busy in the following 2-3 weeks.
The following pics are taken from my cellphone.
30GHash/s of computing power on one table:
Top and bottom side of the chips:
A closer look at our baby:
After a long and anxious waiting, we have finally got our packaged chip samples at hand. Everyone would be busy in the following 2-3 weeks.
The following pics are taken from my cellphone.
30GHash/s of computing power on one table:
Top and bottom side of the chips:
A closer look at our baby:
These are some numbers derived from the RTL design.
Update
After further optimization and some trade-offs, we came up with this updated estimation results based on our improved design.
Hashrate: 1.00GH/s per chip
Area: 21.7mm^2 per chip
Power Consumption: 8.23W
Again remember that they are estimated from the RTL design and might have some differences to real products.
After further optimization and some trade-offs, we came up with this updated estimation results based on our improved design.
Hashrate: 1.00GH/s per chip
Area: 21.7mm^2 per chip
Power Consumption: 8.23W
Again remember that they are estimated from the RTL design and might have some differences to real products.
We know that the chips ended up hashing at around a third of that (336 MH/s), but the power estimate seems accurate (6-8 J/GH).