Don't forget that eldentyrell was able to squeeze 3 unrolled cores onto a 150k part
3 unrolled cores? afaik 3 cores with 0.5hash per cycle
Topic: Cyclone V now shipping! - page 3. (Read 14033 times)
3 unrolled cores? afaik 3 cores with 0.5hash per cycle
Spartan6 differs from CycloneIV. In first one only half of "slices" have carry chain logic that is very important in implementing adders. In Altera products every LUT have carry chain. Thats why you can put fully unrolled core to Cyclone 75k part and you need 150k part from Xillinx to do the same. Artix7 will have carry chains in every LUT, but ALM in CycloneV will have a LUT and an adder. It's almost impossible to direct compare this products when comes to predictions. Either way >2MH/$ from FPGA's is comming 
Don't forget that eldentyrell was able to squeeze 3 unrolled cores onto a 150k part
3 unrolled cores? afaik 3 cores with 0.5hash per cycle
makomk achieved 27.7MH/s from CycloneIV 22k part. My quess is that is 220MHz core rolled 8 times. Fully unrolled core fits to 75k Cyclone. That gives two cores on 150k part and propably at 300MHz (28nm vs. 60nm), so 600MH/s may be possible...
Don't forget that eldentyrell was able to squeeze 3 unrolled cores onto a 150k part, although currently not getting a huge difference in speed (might later though, after some optimizations). Is there a 200k LUT part available? Might be able to fit 4 cores on it for 2 bitcoin hashing stages, instead of an odd 1.5 stages.
makomk achieved 27.7MH/s from CycloneIV 22k part. My quess is that is 220MHz core rolled 8 times. Fully unrolled core fits to 75k Cyclone. That gives two cores on 150k part and propably at 300MHz (28nm vs. 60nm), so 600MH/s may be possible...
What kind of mh/s?
Artix 7 should be cheaper than Cyclone V, because Xilinx claims Artix 7 matches its predecessor's performance (Spartan 6) but sells at "35% its cost and is twice more energy efficient" (can't remember where I obtained this info, I just jotted it down a while back). That said, please do keep us informed about performance numbers you may achieve...
Not exactly as you quoted.
http://www.xilinx.com/products/silicon-devices/fpga/artix-7/index.htm
"... and offers over two times the capacity, 30% higher performance, 50% lower power consumption -- and logic up to 350K logic cell density at lower price points than Spartan®-6 FPGAs."
Altera always have been a little bit expensive than Xillinx, so Artix7 200k may be with same or little lower price. This is gona be madness
Artix 7 should be cheaper than Cyclone V, because Xilinx claims Artix 7 matches its predecessor's performance (Spartan 6) but sells at "35% its cost and is twice more energy efficient" (can't remember where I obtained this info, I just jotted it down a while back). That said, please do keep us informed about performance numbers you may achieve...
So, slightly higher per LUT but it should have lower power consumption? I wonder if we'll see a clockspeed bump with the shrink from 40nm(?) to 28nm. Hopefully the new FPGAs will drop the MH/$ costs for FPGAs so I can start mixing these in to the GPU farm.
Cyclone IV 115k LUTs is priced at 315$. So, this is much cheaper per LUT! Speed bump should be quiet significant becuse CIV are made at 65nm. 
So, slightly higher per LUT but it should have lower power consumption? I wonder if we'll see a clockspeed bump with the shrink from 40nm(?) to 28nm. Hopefully the new FPGAs will drop the MH/$ costs for FPGAs so I can start mixing these in to the GPU farm.
I've just found this news in my email.
239$ for 150k LUTs part. Looks VERY promissing.
http://www.buyaltera.com/scripts/partsearch.dll/multisearch?site=ALTERA&lang=EN&keywords=5CE+A7+FPGA+IC
Currently out of stock...
Altera always have been a little bit expensive than Xillinx, so Artix7 200k may be with same or little lower price. This is gona be madness
makomk:
Considering your 27.5 MH/s what is your estimation on this? 2x200MH/s?
239$ for 150k LUTs part. Looks VERY promissing.
http://www.buyaltera.com/scripts/partsearch.dll/multisearch?site=ALTERA&lang=EN&keywords=5CE+A7+FPGA+IC
Currently out of stock...
Altera always have been a little bit expensive than Xillinx, so Artix7 200k may be with same or little lower price. This is gona be madness
makomk:
Considering your 27.5 MH/s what is your estimation on this? 2x200MH/s?
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