Yes, I am playing Crysis right now. I am at "Recovery" chapter stage. Cool! I feel like a soldier in a real environment, although virtually.

I play Crysis at medium setting 1280 x 768 with my Vostro 1400. I use Crysis's auto-detect mode to come at this setting. I enjoy this mode so much.

I've tried 1280x800 (widescreen mode) but it is lagging a little bit. The reason is that at this resolution, I need:
1280 x 800 X 32-bits colors X 8-bits pixel order = 262144000 bits = 250 MiB (IEC unit ) = 262 MB (SI unit).
My Nvidia 8400M GS has 128MB dedicated memory + 128MB shared memory (due to system-controlled TurboCache) = 256 MB (SI unit).
In this case, it needs to page in and page out from hard disk virtual memory for that extra 6 MB which causing the lag.

I have no serious lag issue at 1280 x 768 because it uses 252 MB or 240MiB memory which is within that allocated total 256 MB video memory. Of course, small lag due to read/write performance coming from:
1) hard disk virtual memory for game file loading
2) read/write performance of my system memory
3) read/write performance of my hard disk
4) other factors not related to hard-disk and system memory.

It takes about 800MB of system memory to run this game. The temperature sensor evolves around 50 to 70ºC.

I haven't finished my Crysis game yet. So, I can't comment on Assassin's Creed, which it will my next game after Crysis.

Yes, it's true. But, I like the one appears on the notebookforums.com better (the NBF MobileForce version) since you don't need to worry anymore about the separate modded INF. It is all sorted out by the 174.31 installer. Just choose with mode you want in the installer (with performance or without).

---

Added on April 27, 2008, 11:05 pm
One thing you need to be clear is your CPU, besides your concern on the Nvidia driver for Nvidia M series GPU.

For example: mine is C2D T7250, which in a way, is better than subrok007's C2D T54xx.

Another thing is my harddisk speed 7200 RPM contributes to a better access speed for virtual memory allocated by Windows. A portion of virtual memory may be used inside a game. Not everything is running totally on the system memory or video memory.
http://en.wikipedia.org/wiki/Virtual_memory

Yes, I am using Nvidia Forceware 174.31 NBF MobileForce version (from notebookforums.com). Are you using Windows Vista? Mine is Windows XP, though.

Try to disable Vista's SuperFetch feature. That feature tries to be smart by analyzing your habit of doing things with your system and it allocates memory according to your usage.

http://articles.techrepublic.com.com/5100-...tml?tag=nl.e040

http://gizmodo.com/gadgets/software/vistas...-you-234109.php

http://tiredblogger.wordpress.com/2007/03/...per-for-gaming/
SuperFetch is not suitable for gaming due to inconsistent memory access patterns employed in games.

r u set ur resolution to 1280x800? if u set ur resolution to that sure u get lag even in low setting mode...
since u update de driver, u can play in 800x600 resolution n 1024x768.....correct me if i mistaken.....
thanks  

oic...so sorry i hav finish de crysis long time ago n already uninstalled it cos too big size....i remember that last time i play is 800x600 n full screen i use 169.25 driver to play...de driver i download frm laptopvideo2go...then play vry smooth....all setting almost can set to medium la...some must low lo...may b u can tried 169.25 or 174.31....