i still be able to see the sli enabled, dual  gt650m in nvdia control  panel,
[attachmentid=3182541]
but dun know it will affect  my gaming or not,so far dun have any game, cant tested  on it ...but if something  bad really  happened, i will follow ur detail, thanks

Sure Btw, that screenshot is after you install driver from Nvidia? or after you re-install driver from Lenovo? Did you restart, after installing any of the drivers? Sometime weird things happen after we restart laptop 
Good luck

yeah, i installed  310.54 and restart this afternoon , the photo was taken 10 minut ago, i didn't  re install the lenovo driver yet ,seem like nothing  happened, hopefully!

so actually what is the latest driver version for lenovo y500?
currently i use v306.00..erm i checked for an update and it said i have the latest update version
is it driver version affect fps value

wait for my 3dmark result, i installed  310.54 and lets see how ,testing now

now i m doing my 3d mark 11 test, for those people having problem  like cant open or install  any  exe  in win8(wermgr, exe)problem , i found the problem  here, this happened  because i open and using 搜狗拼音，since i closed and hide it , everything  is going fine ,google got more detail about this, i spent 2 hour in google to check how to fix this problem, but i still failed to do so, at last , i typed in chinese in 为什么出现wermgr. exe win8,i found that  a lot people which using 搜狗拼音having  the some problem  with  me ,搜狗拼音 is the major  problem  which causing this ~

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Added on December 1, 2012, 1:20 am
wait for my 3dmark result, i installed  310.54 and lets see how ,testing now

yah sure..i'm done tested fps on nfsmw and assasin creed 3 on v306.00..and the result is 
now i gladly hear that fps can be increasing by updating driver version

will test again
please reconfirm what is the current version, so i can make a test

You can still upgrade(SSD, RAM, etc) the Y500 in the future.
But you can't do anything to improve the gaming performance on the Y580. Except by overclocking.

Just have to wait for more review on the gaming performance and gaming stability of the GT650M SLI.
Whether the improvement over the GTX660M is worth it or not.

The SLI scalling is very much depend on how well the drivers optimization. If SLI for GT650M is supported by Nvidia site, always use the latest drivers ie 310.64.
http://www.nvidia.com/object/notebook-win8...eta-driver.html

Pls wait for 3DMark11 from minzisme to verify the 310.54 drivers compatibility.

Do keep your results with default 306 drivers for comparision.

The SLI scalling is very much depend on how well the drivers optimization. If SLI for GT650M is supported by Nvidia site, always use the latest drivers ie 310.64.
http://www.nvidia.com/object/notebook-win8...eta-driver.html

Pls wait for 3DMark11 from minzisme to verify the 310.54 drivers compatibility.

Do keep your results with default 306 drivers for comparision.
+1 
IMO, its quite worth it for Y500 with
- swappable ultrabay with different options to suit user needs, ie. ODD, HDD, fans, bluray, even additional battery in future if there are demand.
- swap it with additional battery and bring 120W psu(optional) when you needs mobility. swap with GT650M and use 170W psu when you needs extra horse power at home.
- better design/build & bling-bling Red backlit keyboard
- better cooling system & easy maintenance

yah sure..i'm done tested fps on nfsmw and assasin creed 3 on v306.00..and the result is 
now i gladly hear that fps can be increasing by updating driver version

will test again
please reconfirm what is the current version, so i can make a test

the current available version from lenovo malaysia official wetsite is here
http://support.lenovo.com/en_MY/downloads/default.page?
click the video path ,and you can see Nvidia Video Driver (SLI, Optimus)
1fvl13ww.exe in 233mb,this should be the latest
nsfmw ,assasin creed 3 should get around 30-40 fps in gt650m sli(ultra+1920*1080}
and dun forget to check whether you enable ur sli or not
propeties -nvdia control-set sli and physx
and you will get this

of course,if after doing all this things,but u re still having lower fps ,you can try to dowload 310.54 to see whether it work or not,hopefully yes~
i have to make myself clear,i always  think that driver from lenovo is only to make sure that our system can recognize the gt650m sli,but we still have to keep our driver up to date
think about it, need for speed most wanted released in 30 oct 2012,assasins creed 3 released in 23 november
but the driver we are using which is 306.00 ,was released on august,another way to say that,our driver are too old for those new games.
of course ,this is only what i think ,better wait for confirmation from lenovo

+1 
IMO, its quite worth it for Y500 with
- swappable ultrabay with different options to suit user needs, ie. ODD, HDD, fans, bluray, even additional battery in future if there are demand.
- swap it with additional battery and bring 120W psu(optional) when you needs mobility. swap with GT650M and use 170W psu when you needs extra horse power at home.
- better design/build & bling-bling Red backlit keyboard
- better cooling system & easy maintenance

I love the Y500 design. But you are spending RM800 more.
Suppose you get the Y580. What you can do with RM800:
buy a SSD and swap with HDD, buy a caddy for the HDD and swap with ODD, buy more RAM, upgrade warranty to 3 year on site, buy a cooling pad.
You get a machine that lose out in raw GPU power, less vow factor.
You get a machine that boot faster, run apps much snappier, with better warranty support, and never need to deal with SLI.
Not a bad trade-off. My hands is getting itchy, but Y500 is not a blow out winner over Y580.

And no, to get the SLI working, both GPU must be same model. This is as good as it get. You will not be able to get a "better" ultrabay GPU next time.

is it 60 fps is maximum fps we can get while playing games?
n what is the minimum fps to run games smoothly?
anyone can clarify this

is it 60 fps is maximum fps value that we can get while playing games?
n what is the minimum fps to run games smoothly?
anyone can clarify this

i5+single gpu gt650m in need for speed
http://ideapad.zol.com.cn/60/160_593451.html
they have 45-60 in ultra setting
dual gpu ,i7 should be better even in FHD

i'm done tested nfsmw , assasin creed 3, fifA 13
set up in all high setting and full hd resolution 1920 x 1080
this is what i get during running a game
driver version 310.64
nfsmw : 19-21fps

Was this in SLI or not?