Quote from: ArtForz on November 27, 2011, 05:40:31 AM

Those packages look like 1mm grid thermally enhanced flipchip BGA ... guesstimating by the 0.1" headers ... 29x29mm FF780
so if these are SIII, pretty much "could be anything from a L50 to a E260"
One thing kinda throwing me off... if those are HCs, 1.1V core doesn't make sense. HCII is 1.2V and HCIII and IV are 0.9V.
As for "what SIII would you need for that"... depends on how much time you spend optimizing, first guess would be 2 unrolled engines with 1 pipeline stage per round, each running @ 250MHz... gut feeling says a L150.
So, random guesses:
a) these are HCIIIs, they prototyped with SIII and forgot to update the label for vcore.
or
b) only SIII based prototypes exist, once they get enough pre-orders HCIIIs get ordered (about 8wk if you rush assembly... possible.)
or
c) they somehow got a whole bunch of large SIIIs really cheap.
or
d) something entirely different.

I guess that these are engineering/preproduction samples of EP5AGXA3.
- they are 1V1
- I was able to succesfully sythesize 250MH/s with almost no effort (just combined two cores from here) into Stratix III/150 (which is 65nm). Never run it live though.
- Arria could be twice as fast for its 28nm -> 500 MH/s
- it is supplied in 27mm F672 package

@inaba: What size are the chips anyway? It can be measured really easily,
without pulling the heatsink off...

Just my 2c.

-x

xaxik

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