Not a very big difference.
But GT740M is better than GT645M
GT740M is equal to GT650M but the 700 series is newer and from what I know improves battery life (uses less energy).

But as you know, Z500 is 15.6'' and is has a numpad while Z400 is 14'' and doesn't have a numpad.

Z500 is worth to get is you don't mind carrying extra 300-400g compared to Z400.

Z500 is only 2.3 or 2.4kg. it's fairly light for a 15.6''

icic. but the performance is z400 win is it? just strong in graphic card. all the spec almost same, just the graphic card got different.

I don't know if Lenovo Z500 is going to have the GT740M, they MIGHT have it in the future.

But GT740M is slightly better than the GT645M

If GT740M is based off the same GK107 (same as GT650M), then it will not use less power It just clocked differently. (don't think GT740M is based of the newer GK208 )

Also GT650M has DDR3 or GDDR5 spec, the same thing is applicable to GT740M as well. The card with GDDR5 will outperform that with DDR3 quite significantly.

The main difference between GT7xx and GT6xx actually is the GPU Boost 2.0 tech, (you can google to find what this do), basically it just allow the GPU to ramp up more as long as temp is under-controlled.

This post has been edited by nexus2238: Apr 11 2013, 02:23 PM

Problem is sometimes a single class gpu from NVIDIA can mean a lot of different specs. The 630M for example.

Does anyone think the i5 variant of y400is coming to Msia? That would probably kill off most competition.

Guys, update on the battery. Seems that you guys aren't screwed even if you accidentally leave your laptop on over night (unless it gets really heated up) with it plugged into charging. I found out that on the energy management settings, if you put the battery option as *Optimized Battery Health* instead of *Maximum battery life*, it stops charging the battery at one point (not really sure at which point, maybe around 50%-55%).
The *Optimized Battery Health* provides the longest battery life span while *Maximum battery life* gives you the most battery life.
Here's a screen shot

This post has been edited by raeimad: Apr 12 2013, 10:31 AM


Attached thumbnail(s)

Can you help to post the screen for GPUz and 3DMark11.
How long will the battery last for web surfing with "optimized battery health"?

The battery life would be around the same on both options. But depends on what power plan you're using.
Power saver would last around 4 hours on a full battery, not sure about the res since I haven't had time to try those out yet.

I've been busy with assignments and stuff since I got that lappy, so I'll post em in a few days if I get the time.

I got a question guys.

Im in lowyat now and most resellers told me if i add ssd it will void my warranty.

My question is does z400 have an extra slot for intel 120gb ssd?

And if it has an extra slot. Will it void my warranty since i want to prolong my warranty period.

Thanks guys. Urgent!!

I got quoted at 2569 for 120gb ssd with i5 z400 gt740m edition.

Urgent guys!

Z400 with touch or what?

Assuming without touch, it should be priced at RM2099:

Z400, i5-3230M + Nvidia GT740M@RM2099, 4GB, 1TB, W8; 2 years warranty; colors: chocolate

a 120gb SSD typically costs around RM360+ ...

You won't void warranty if there's no sticker on the screws, It will usually say "warranty void if tampered". From my experience with another Lenovo Y480, the HDD can be easily changed (no sticker on screw so it's safe) but not sure about the Z400

Hey man. thanks for your reply.

Ya, its the non touch edition.

So it basically wont void if i upgrade it to ssd right?

But my other question is that if it has an extta slot for my ssd? Means if i get the ssd, i will have 1TB hdd + 120gb ssd.

No one at lowyat plaza can answer my question -.-

Didn't get my hint on posting the price, that the one you saw at LYP was overpriced?

Like I said, it won't void if there are no stickers on the mounting screws. This goes for most computer components

1TB HDD +120GB SSD I don't think is viable for that laptop. You can check whether it has a removable optical drive or not (DVD drive)

http://blog.superuser.com/2011/05/04/best-...ur-optical-bay/

See 0:50



The HDD mount is exactly the same as Y480 and I'm sure pretty much most Lenovo laptops. Can be easily switched with SSD



This post has been edited by -kytz-: Apr 14 2013, 06:00 PM

Oh, i know what you mean about the pricings. Its really overpriced as i get better prices at digital mall and also sunway pyramid.

So basically, i cannot get the 1TB hdd + 120gb ssd on my lenovo z400?

sifus, just to reconfirm with Z400 resellers/owners.

the Z400 DO NOT have an extra sata 3 port for an additional SSD right?

Or does it have?

any z400 users here?
how is the display on the z400? is it sharp? brightness level? the glaring level?

and how about the sound quality? is it good?

The display is pretty good, slightly yellowish. Have to do some colour adjustment. Brightness is not a problem. The main issue lies on TN panel, the viewing angle is bad as usual.

The sound is rather dull. Not as crisp as other mainstream laptop, but bassy.

Yeah, viewing angle is not good. But for the speakers, loud as hell, even though it's not the clearest xD

But adjusting the EQ for each song makes the sound better.

If im a moderate gamer (around 2-3 hours per day)

Which would fit me best?

the Z400 or the Y400/GT750M?