X201 i7-620M vs X201s i7-640LM

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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Thinkpad4by3
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X201 i7-620M vs X201s i7-640LM

#1 Post by Thinkpad4by3 » Mon Jun 26, 2017 9:36 am

Which one is faster, the 620M or the 640LM and if I had the choice of X201 v. X201s which one should I pick?
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Re: X201 i7-620M vs X201s i7-640LM

#2 Post by ZaZ » Mon Jun 26, 2017 1:28 pm

Thinkpad4by3 wrote:
Mon Jun 26, 2017 9:36 am
Which one is faster, the 620M or the 640LM and if I had the choice of X201 v. X201s which one should I pick?
On paper the 640 is faster, but that's only if you're running them at or near capacity, so I would pick the lesser priced one, as it'll offer better value.
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Re: X201 i7-620M vs X201s i7-640LM

#3 Post by RealBlackStuff » Mon Jun 26, 2017 2:37 pm

X201s (where s=slim) is slightly thinner and lighter than X201.
There is a screen option WXGA+ (1440x900), most often on the X201s.
Lids with that WXGA+ do NOT have the webcam option, only WXGA (1280x800) has that.
Performance wise X201 and X201s are the same.
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Re: X201 i7-620M vs X201s i7-640LM

#4 Post by apojoga » Mon Jun 26, 2017 3:21 pm

I would primarily worry about the heat/noise situation. I don't have personal experience, but I hear the X201 likes to heat up with the i7; the X201s even more so on account of the smaller case.
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Re: X201 i7-620M vs X201s i7-640LM

#5 Post by Lomax » Tue Jul 18, 2017 10:23 am

The 640LM is a "low power" part, with a TDP of 25W, whereas the 620M is a regular "mobile" CPU with a 35W TDP. Since I've always struggled with overheating the "LM" is much preferable - indeed I sorely wish there was a Thinkpad in the "X" series which had a "UM" ("ultra low power") i7 CPU, but it seems no such beast exists.
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Re: X201 i7-620M vs X201s i7-640LM

#6 Post by harryK » Tue Jul 18, 2017 12:18 pm

X201 is faster, X201s has a better screen with higher resolution (1440x900), is lighter and has longer battery life. The X201s with the 4 cell battery is probably the lightest "classic" thinkpad. I would go for the S model.

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Re: X201 i7-620M vs X201s i7-640LM

#7 Post by x3o2 » Tue Jul 18, 2017 12:43 pm

harryK wrote:
Tue Jul 18, 2017 12:18 pm
X201 is faster, X201s has a better screen with higher resolution (1440x900).
Don't agree. The s-model can have a higher resolution, but the WXGA+ TN panel is one of the worst I have ever seen (lousy colors and mediocre brightness).

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Re: X201 i7-620M vs X201s i7-640LM

#8 Post by jdrou » Tue Jul 18, 2017 3:24 pm

Lomax wrote:
Tue Jul 18, 2017 10:23 am
indeed I sorely wish there was a Thinkpad in the "X" series which had a "UM" ("ultra low power") i7 CPU, but it seems no such beast exists.
All the newer X-series (starting with X240) use only "UM"-equivalent CPU (15W TDP). 25W-35W are not even options.
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Re: X201 i7-620M vs X201s i7-640LM

#9 Post by Lomax » Wed Jul 19, 2017 5:29 pm

jdrou wrote:
Tue Jul 18, 2017 3:24 pm
Lomax wrote:
Tue Jul 18, 2017 10:23 am
indeed I sorely wish there was a Thinkpad in the "X" series which had a "UM" ("ultra low power") i7 CPU, but it seems no such beast exists.
All the newer X-series (starting with X240) use only "UM"-equivalent CPU (15W TDP). 25W-35W are not even options.
That's good to know, but I cannot even consider them; I've been a Trackpoint user for over twenty years and it is the only pointing device I need and want - those massive great big multi-touch touchpads are a total waste of space, and worse! I've even modified my X201s with a non-touchpad palmrest to get rid of the small one it had. I do not understand what Lenovo are thinking. Thinkpad = Trackpoint as far as i am concerned - if I want to fiddle with something "multi-touch" I'd rather go play with my girlfriend ;)

Edit: I'm sorry to say it, but the Thinkpad line ends with the X230 - and even then i'd have to swallow a six-row "chicklet" style keyboard, which is already a pretty hard sell for someone who can touch-type.
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Re: X201 i7-620M vs X201s i7-640LM

#10 Post by shawross » Wed Jul 19, 2017 5:58 pm

Lomax wrote: if I want to fiddle with something "multi-touch" I'd rather go play with my girlfriend ;)

:lol: :lol: :lol: :lol:

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Re: X201 i7-620M vs X201s i7-640LM

#11 Post by Thinkpad4by3 » Wed Jul 19, 2017 6:14 pm

Lomax wrote:
Wed Jul 19, 2017 5:29 pm
jdrou wrote:
Tue Jul 18, 2017 3:24 pm

All the newer X-series (starting with X240) use only "UM"-equivalent CPU (15W TDP). 25W-35W are not even options.
That's good to know, but I cannot even consider them; I've been a Trackpoint user for over twenty years and it is the only pointing device I need and want - those massive great big multi-touch touchpads are a total waste of space, and worse! I've even modified my X201s with a non-touchpad palmrest to get rid of the small one it had. I do not understand what Lenovo are thinking. Thinkpad = Trackpoint as far as i am concerned - if I want to fiddle with something "multi-touch" I'd rather go play with my girlfriend ;)

Edit: I'm sorry to say it, but the Thinkpad line ends with the X230 - and even then i'd have to swallow a six-row "chicklet" style keyboard, which is already a pretty hard sell for someone who can touch-type.
1: I cant tell if playing with your girlfriend is good ro bad for you from the way you said it. Im aasuming its good. By that perspective, id rather do that use a slim height trackpoint.

2: For a while I debated Hacking a X220 keyboard into an X240. Dremel all the way!
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And you're a very rare mobo, very hard to get
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Re: X201 i7-620M vs X201s i7-640LM

#12 Post by Lomax » Wed Jul 19, 2017 6:21 pm

shawross wrote:
Wed Jul 19, 2017 5:58 pm
Some people think the X class Thinkpads finished with the 16:10 X201 series
You know I completely forgot about this 16:9 nonsense there for a moment. *shudder*
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