Intel Pentium 3556U and Core i3-4005U CPUs spotted

Last Friday we published details of Celeron 2955U and Core i5-4200H Haswell processors, that are expected to launch in September. Since then, we spotted the Celeron in specifications of Packard Bell EasyNote TE69 (part TE69HW-29554G50Mnsk) notebook, and in the Hardware Maintenance Manual (PDF file) for Lenovo IdeaPad S310 and S410 laptops. Furthermore, both places also have information on unreleased Pentium 3556U, and the Lenovo document has some details on Core i3-4005U.

Based on specifications of Lenovo S310 and S410 notebooks, Pentium 3556U and Core i3-4005U are ULT products, that integrate a CPU, GPU and Platform Controller Hub in one package. The processors have 2 CPU cores and run at 1.7 GHz. The Pentium part has 2 MB L3 cache, and the Core i3 chip has the size of L3 cache increased to 3 MB. We presume that the i3-4005U supports Hyper-Threading technology. The microprocessors fit into 15 Watt thermal envelope, and manufactured in a BGA package. Both parts incorporate graphics unit, but its details are unknown.

The features of the Pentium 3556U are also confirmed by the specs of a Packard Bell TE69HW-35564G50Mnsk laptop. Performance-wise, the 3556U will probably be a bit slower in non-graphics applications than the 2127U, currently the fastest mobile ULV Pentium. Likewise, the i3-4005U may be a few percent slower than the i3-3217U Ivy Bridge SKU. On the other hand, Haswell processors should have better graphics performance, and lower overall system power consumption.

Pentium 3556U and Core i3-4005U processors will be launched on September 1st. Below is a summary of their specifications:

ModelCoresThreadsFrequencyL3 cacheTDP
Core i3-4005U 2 4 1.7 GHz 3 MB 15 Watt
Pentium 3556U 2 2 1.7 GHz 2 MB 15 Watt

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