[Hardware] Notes on packing serial cores into Xilinx devices

jbass at dmsd.com jbass at dmsd.com
Sun Aug 15 16:36:49 EDT 2004


"Dan Oetting" <dan_oetting at uswest.net> writes:
> $4 per month = 4 chances to win lottery, odds of winning: 4 in 5 
> million, minimum jackpot $1.5 million (Colorado Lottery, your state may 
> vary).
> 
> $4 per month running PC cranking 15 million keys per second (about 40 
> trillion(US) keys per month) odds of winning: 1 in 100 million, maximum 
> payoff $10,000.
> 
> "like" a difference of over  4 orders of magnitude. RC5-64 wasn't even 
> in the ball park.

Hmm ... that's where fpga enhanced machines can change the balance point,
especially if external to the PC and separately powered. A 4 watt FPGA
appliance, if not solar powered, would cost about a quarter ($0.25) per
month to operate, and reasonably kickout between 20 to 300 trillion keys
per month. At which point, RC5 becomes more attractive than playing the
lotto :)

> "Casino taxes and lottery proceeds should be used to support education. 
> Especially math skills." -- Dan Oetting

laughing very loudly out loud ... :) and here we sit debating how to do RC5!

Where in Colorado?

John


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