Intel SoMa B3

A weird CPU with a lot of questions. The CPU looks like an LGA1156 CPU but it doesn't have SMD chips on the back-side. Usually thermal or mechanical samples don't have these chips.

However, there is a picture or the original box indicating 315 pieces per box. The picture shows about 100 boxes stacked together. It's very unlikely that Intel made that much samples to be just thermal or mechanical sample. The box is labeled sSpec: SR26U.

The investigation continued when someone opened a CPU like this and found out that they consist of 4 CPU 'dies' like it would be an MCM chip.

Eventually 'Fritz' made die-shots (see here on flickr.com) of the chip in question. It doesn't really show an advanced chip architecture. It's more like identical rows of transistors (or resistors?) stacked next to eachother.

Specifications

Core / Codename
Clockfrequency
?MHz
Front Side Bus
?
Multiplier
?
vCore
?
L1 cache
?
L2 cache
?
sSpec
SR26U
Chip date
1450
Stepping
?
Socket
Transistor count
?
Condition
CPU only
Engineering sample?
Yes

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