Instruction: Answer the given question using the supporting document.

Input:
Question: Does this have i7-4600U or i7-4500U CPU? Title and spec table are different.
Document: The laptop is surprisingly light for the size.- I would strongly suggest that you look into getting a unit with an i5 processor and perhaps upgrade the HDD to SSD yourself. With the i7 version, I only see battery life in about the 7-8 hour range under ordinary use, and probably less than 2 hours if the i7 really spins up.
It is not much different than my old Lenovo, where the left and right buttons were separate and slightly raised. In this design, they are smooth and incorporated in the touchpad, but rest at the same spot and need to be activated with a similar touch as if they were visually and physically separate.
Some of the reviews of the trackpoint are understandable, but I was able to easily get use to it. The trackpad is a little bit of a different story...sometimes difficult to left/right click related to the fact that it is one unified trackpad instead of separate click buttons. Otherwise I can't say enough about the speed, ease of use and overall performance of this laptop.
I have have one T440s for personal use and another one for work both identical (OS, RAM, CPU, wireless card etc...) except for the display. My personal laptop has maxed out specifications for display with wide viewing angles while my work Thinkpad did not.
i had one, since 4 year ago work wtih it, only the dvd is damaged but i hope buy a one soon
boot in approximately 1 second (I am not kidding). Time will tell if it remains that fast, but I expect it will. Also, most of the time the laptop is completely silent. No whirring hard drive. There's a bit of fan noise if you're doing something demanding (like gaming) but otherwise, no sound. The keyboard is really, really nice. The keys are raised making it way easy to type on. It's also quite portable, about the size of a large book.
Yes, this model lacks a clasp for locking the screen shut during transport, but the hinges are set such that it takes extra effort to go from "closed" to "open", as compared to adjusting the screen angle when already open. Others have complained about the quality of materials-- again, I don't see what they're complaining about. This model feels very rigid, and I can't bend the frame or body panels even if I try.
What a waste. I dont care about ruggedness or drive protection over the smoothness of operation. Not going anywhere near this line of product again.
To address concerns raised by other reviewers:-Bleedthrough / ghosting: with the 1920x1080 IPS non-touchscreen, I have seen NO sign of either of these problems.-Touchpad: The lack of dedicated buttons for the touchpad is a little annoying, however I don't see it as a significant drawback. Lots of people complain about accidentally hitting the touchpad when typing, and I can't imagine how they're doing this. Resting my palms where they're meant to go, I can't even hit the touchpad if I try.
This might be a driver issue, but from the sound of other reviews it seems like perhaps not. To mitigate this, I just assigned a keyboard shortcut to turn tap-to-click on and off, and switch to using physical pressure when I need to type accurately. It's a compromise, but overall it works better than most laptops for me.
Answer: It is 4600U that is the newest low voltage processor from Intel.