Both models i7-4500U
are based on Haswell
"Haswell is known as fourth-generation core too. It uses 22nm Tri-Gate FinFET (non-planar, ""3D"") technology. It includes four arithmetic logic unit (ALU) and three address generation unit (AGU). This generation is able to run Advanced Vector Extensions 2 (AVX2) instruction set among BMI1, BMI2, ABM and FMA3. At this time, Intel used new sockets: LGA 1150 for desktops and BGA1364 for the mobile CPUs."
Using the multithread performance as a reference, the i7-4500U gets a score of 68.3 k points
while the i3-4170 gets 92.7 k points
Summarizing, the i3-4170
is 1.4 times faster
than the i7-4500U
. To get a proper comparison between both models, take a look to the data shown below.