24/02/2016
The official launch of Haswell microarchitecture in June will include desktop, mobile and server products. Mobile Haswell lineup will be comprised of a few mainstream quad-core processors with TDP 47 and 57 Watt, and a handful of ultra-low voltage parts: Core i3-4100U, i3-4010U, i5-4250U, i5-4200U, i7-4650U, i5-4350U, i7-4550U and i7-4500U. Their specifications are pretty much unknown at this point, and the only thing known about them is the type of integrated GPU. Luckily, we were able to locate specifications for two of these processors, Core i5-4350U and Core i7-4650U.
Both Core i7-4650U and Core i5-4350U are dual-core CPUs based on Haswell 22nm architecture. With the new microarchitecture, Intel made a couple of important changes to the specs of ULV processors. First, they are now rated at 15 Watt instead of 17 Watt. They also integrate a Voltage Regulator, which increases their power consumption. As a result, Haswell ULV chips run at lower base frequency to compensate for both changes.
The i7-4650U is clocked at 1.7 GHz, or 400 MHz lower than Core i7-3687U. The 4th-generation processor can boost core frequency to 2.9 GHz for two cores, and up to 3.3 GHz for 1 core. The 4650U has 4 MB L3 cache.
Core i5-4350U has smaller 3 MB L3 cache. The CPU runs at 1.4 GHz, that is significantly lower than the Core i5-3437U. Haswell chip has 2.6 GHz (2 cores) and 2.9 GHz (2 cores) maximum Turbo Boost frequencies, which is close to maximum frequencies of the i5-3437U.
Future 4350U and 4650U microprocessors incorporate HD 5000 graphics, clocked at 200 MHz. The frequency of the GPU can be increased up to 1.1 GHz when needed. The CPUs support AES instructions, as well as all Haswell technologies, including VT-d and Trusted Ex*****on. The ULV processors will be manufactured in a BGA package, support DDR3/3L-1600 memory, and will be launched in June 2013.
The summary of specifications for both models is provided below:
