4790k Batch numbers

[Sentien]

I've just picked up my 3x 4790ks for our triple build, looking at the packaging I have noticed one of them has a different batch number compared to the other two, I'm wondering if there is a way of finding out which chip MAY perform better just going on batch number alone? (without even unboxing it)

 

Batch#:

 

2x L419B574

1x L420B877

[Archangel1994]

If I recall correctly the L420B877 is the better batch.

[Firearm2112]

Its all magical randomness in the silicon lottery

[DIV1D3]

Unless you got Intel to produce a spreadsheet of all the info about the two batch numbers I doubt there is a feasible way of telling which one is better. 

[Firearm2112]

Unless you got Intel to produce a spreadsheet of all the info about the two batch numbers I doubt there is a feasible way of telling which one is better. 

YOUR IN LUCK! https://docs.google.com/spreadsheet/ccc?key=0AvOpIsGT1cQAdEFvV2lQWVd1OWo2a2ZlTkxjdWVtUmc&output=html&gid=1

[harrynowl]

Chips from Costa Rica are supposed to be better than Malay ones.

 

And L4 is supposed to be better than L3, so you're good there.

 

Odds are all 3 can do 4.7.

[DIV1D3]

YOUR IN LUCK! https://docs.google.com/spreadsheet/ccc?key=0AvOpIsGT1cQAdEFvV2lQWVd1OWo2a2ZlTkxjdWVtUmc&output=html&gid=1

Oh God, it's half past 11 here lol.

I'm meaning by Intel, so all CPUs from both batches with tests and crep.

 

But realistically they should be the same, the silicon lottery will have more of an effect on the performance, so without testing them all you can't safely assume that one or two of them are better than the remaining. 

[airdeano]

L4 is 2014 production and L3 2013 production

 

Example: L419B574

Malaysia - 2014, 19th week, 2nd Lot, 574 serial

 

1st letter or digit = plant code (Malay)
0 = San Jose, Costa Rica
1 = Cavite, Philippines
3 = .............., Costa Rica
6 = Chandler, Arizona
7 = .........., Philippines
8 = Leixlip, Ireland
9 = Penang, Malaysia
L = ............, Malaysia
Q = ..........., Malaysia
R = Manila, Philippines
Y = Leixlip, Ireland

2nd digit = Year of production (2014)

3rd & 4th digits = week (19th week )

5th - 8th digits= lot number

10th - 13th digits = serialization code

[Sentien]

Great thanks for the information any ways guys!

Unfortunately only one of these CPUs will be be OC'd (mine, hence the reason for asking) and the other two will be kept at stock, so we'll never truly know their potential...

[kingdorian]

<snip>

Lol wait what? My cpu is produced like a year ago? Thanks for the info!