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Author Topic: How much hashes this device can give ?  (Read 1701 times)
ArsenShnurkov
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November 23, 2011, 08:59:46 PM
 #1

http://opencores.org/or1k/Ordb2a-ep4ce22
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November 23, 2011, 09:58:29 PM
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Without researching the chip on this board, just going by the Altera EP4CE115C7 listed on the mining hardware comparison page (this one is a EP4CE22F17C6), maybe ~60-80MH/s?

Probably not worth the 139EUR they want for mining purposes when there's better FPGA options around the forums.


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November 23, 2011, 10:05:22 PM
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I take that back.

According to the Cyclone IV overview [http://www.altera.com/literature/hb/cyclone-iv/cyiv-51001.pdf],  The CE115 has 114,480 LE's (logic elements) and gets ~100MH/s, the CE22 has 22,320 LEs

Probably more like 25-30MH/s.

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November 23, 2011, 11:46:42 PM
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I take that back.

According to the Cyclone IV overview [http://www.altera.com/literature/hb/cyclone-iv/cyiv-51001.pdf],  The CE115 has 114,480 LE's (logic elements) and gets ~100MH/s, the CE22 has 22,320 LEs

Probably more like 25-30MH/s.

Sub 20MH.  w/ only 22K LUTS to work with the bitstream is not going to be unrolled much which means more loop overhead.
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November 24, 2011, 09:32:51 AM
 #5

This one is listed on hardware mining comparison
https://en.bitcoin.it/wiki/Mining_hardware_comparison.
Board is Terrasic DE0-Nano. Its rated at 6.25MH/s but thats are old cores. With some further improvments it may reach 10MH/s.

Under development Modular UPGRADEABLE Miner (MUM). Looking for investors.
Changing one PCB with screwdriver and you have brand new miner in hand... Plug&Play, scalable from one module to thousands.
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November 24, 2011, 09:54:35 AM
 #6

Comparing LUTs isn't a particular effective way to compare fpgas, especially between vendors. Altera uses a different Logic cell so the number may be actually higher. From what I've read altera fpgas often archive higher utilization. Might be worth a look.

Although I would try to find one of the bigger chips of them.

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Gerald Davis


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November 24, 2011, 04:46:40 PM
 #7

Comparing LUTs isn't a particular effective way to compare fpgas, especially between vendors. Altera uses a different Logic cell so the number may be actually higher.

While they aren't exactly comparable it will give you a ballpark figure.  If you get 20MH/s w/ chip from one vendor with X LUTs a chip from another vendor that also has X LUTs isn't going to get 500MH/s.
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