X201 tablet VS X220 tablet

[i2000s]

Hi,

I am looking for a fast tablet. Now I have two potential candidates (not sure yet): X201 tablet with i7-640M processors, and X220 tablet with i7-2640M processors. There is a roughly $400 price difference between the two sets. I come to ask you guys, especially who have experiences of using both machines, for your suggestions of buying.

PS: I mainly use the computer for some calculation works (a little heavy programming work), and taking notes daily.

Upon I am posting this thread, another guy may offer me an X220 i5-2520M tablet without harddrive of $600+80 (ultrabase). I get confused which one to buy.

Bests,
i2000s

[ZaZ]

For general usage fast is usually more related to the hard drive speed than the CPU, though when the CPU is pushed, the newer CPU will be faster. The benefit of the X220 is it offers two drive bays, one for a traditional hard drive, which can be used for storage where speed is not as important, and a mSATA slot where you can put a SSD for speed. The X201 only offers one bay so you can get larger drive, which will offer you more space, but won't be as fast as a SSD or a SSD, though it will limit capacity and are more expensive. The X201 offers WXGA resolution, which will get you more vertical pixels. That's handy when using the tablet in portrait mode.

[i2000s]

Thanks for your response. I get a 5O0G Seagate Momentous XT harddrive, which should be able to balance the requirements of both speed and capacity. You said X220 has two bays. Did U mean I can insert two HDDs in the compt?

By the way, l don't want a 100% CPU running. Any idea on the difference of the processors? Thanks.

[ZaZ]

You said X220 has two bays. Did U mean I can insert two HDDs in the compt?

Not in the traditional sense, but Sandy Bridge and on ThinkPads have a miniPCI slot where you can put a mSATA SSD. I think they go up to 256GB right now. It doubles as the WWAN connector as well so you can't do both.