Core i3-3217U and i5-3317U belong to the Ivy Bridge line of processor. These are 17 Watts ultra low voltage processors, suitable for thin notebooks and ultrabooks.
The Core i3-3217U has a higher base clock than that of i5-3317U ( 1.70 GHz Vs 1.80 GHz). However, the Core i5-3317U supports turbo boost with which its clock and rise to 2.60 GHz for short duration ( when there is a demand for the processing power). The final result is that the i5-3317U is faster but not by a huge margin.
Both the processors come with the same HD Graphics 4000 as their integrated graphics.
The only other difference is that – the i5-3317U comes with Virtualization Technology for Directed I/O (VT-d). This is something you need to consider if you are planning upon running multiple virtual machines on your computer ( for example – a Windows and Linux).
Table : Feature Differences
|Feature||Core i3-3217U||Core i5-3317U|
|Core Frequency||1.8 GHz||1.7 GHz|
|No. Of Cores||2/4 Hyperthreads||2/4 Hyperthreads|
|Cache Organization||3 MB L3||3 MB L3|
|Turbo Frequency||None||2.60 GHz|
|TDP Rating||17 Watts||17 Watts|
|64 Bit Support||Y||Y|
|Lithography||22 nm||22 nm|
|Integrated Memory Controller||DDR3-1600, DDR3L-1333||DDR3-1600, DDR3L-1333|
|Integrated Graphics||HD 4000, 350 MHz Base, 1150 MHz Turbo||HD 4000, 350 MHz Base, 1150 MHz Turbo|
Some more details of Core i3-3217U
The Core i3-3217U is the Ultra Low Voltage Ive Bridge processor. It comes with faster HD Graphics 4000 and a much better video encode and decode capability using the newer Quick Sync. While it does not offer turbo boost as in the Core i5 and Core i7 ULVs, it is still good enough as an entry level processor for sleek notebooks and come with the same integrated graphics as the Core i5 and i7 Ivy Bridge.
Some more details of Core i5-3317U
The Core i5-3317U is the low power variant of the Ive Bridge processor found in the entry level 11 inch Macbook Air and other OEM notebooks ( including those from Sony ). It comes with faster HD Graphics 4000 and a much better video encode and decode capability using the newer Quick Sync. The 22 nm Lithography in Ivy Bridge has helped Intel to scale turbo clocks upwards making them better than the Sandy bridge processors. The thin and sleek notebooks are going to benefit in performance.