Hi all,

Now that we got the long-awaited DX11 patch, Crysis 2 once more puts our PCs on their knees. But some of us here in the forum are having a bit too big performance hit after the patch. So here are some fixes and settings that i hope will help you guys.

First of all the infamous 24Hz DX11 bug. Its amazing how it is still here from the first game. The thing is when you play crysis in DX11 using HDMI FullHD screen, for some reason the game starts to run in 24Hz in fullscreen. This means even if the game runs 60fps it only shows 24 of those frames with nasty tearing. Put on v-sync and you got nice 24fps with exrta laggy gameplay. In the first crysis you could just alt-enter a few times to the desktop while in game and if u were lucky the game started to run at 60Hz. Not in this one. But lucky there is an easy fix for this.

YOU HAVE 24Hz BUG SLOWING DOWN YOUR GAME IF:
When you are in the game and you press alt-enter (game goes to windowed mode) and your game and mouse feels a lot smoother, then u have this problem.

Thanks to ShadowMyth at Guru3D, download this http://www.mediafire.com/?2d5857kdwh8ftrr small file. Select your resolution from the left side. For example 1920 1080 60, leave the program on and start your game. If it doesnt help, press alt-enter two times in game and tadaa.. game works.

GAME SETTINGS AND PERFORMANCE HITS:

If you have been running Crysis2 on best setting with dx11 card before the patch and now on ultra settings your game is a diashow, the single most consuming setting is the tesselation. This can be disabled by turning "Object Detail" to Extreme.

So enable DX11, put everything to ultra and OBJECT DETAIL TO EXTREME.

If you dont know what tesselation is and what you are missing, it makes flat textures like tire marks, brick walls and small detail to look 3D. But for me it doesnt justify the performance hit. Even if everything is at low settings the tesselation alone drops my fps to under 10 (HD5870). Also the ultra texture pack makes the difference a little smaller.
http://www.gamesas.com/dx11
Here are some pics to show the difference.

IF YOUR GAME RANDOMLY STUTTERS AND FREEZES FOR A SECOND:
It means your GPU doesnt have enough memory (lower than 1GB). If this is the case it means you should disable ultra textures. This can also mean that your RAM is running low. 2GB is not enough, 4 or 8 should do the trick.

IF STILL YOUR PC IS HAVING A LAGGY TIME:
Asuming your game ran great on dx9 with highest settings, you should set every setting to lowest while using DX11. Then one at a time put them on the highest setting. You should find what is killing your PCs performance.

IF YOU CANT PUT DX11 CRYSIS 2 SETTINGS SO LOW THAT YOUR PC CAN HANDLE IT:
Your PC svcks. Quad core prosixr, 4GB of ram and hd5870/GTX560 are pretty much required for ultra settings. If your pc is better than that, when was the last time you reinstalled windows and updated all drivers? If Crysis 2 is the only game in the world that is laggy as hell with DX11 patch with a badass pc running on newest drivers, then reinstall the game and re-download and install the patches.

IF EVEN NEW DRIVERS AND REINSTALLING CRYSIS 2 DIDNT HELP:
You should throw your pc out of the window and look in to console gaming.

Eh, just use this for the 24Hz fix, better than downloading software;

https://secure.gamesas.com/forums/viewtopic.php?f=40&t=32846

Good post but a GTX460 1GB runs it pretty well on Ultra, considering.

THROWING YOUR PC OUT OF THE WINDOW:
Make sure you have your window open before you do this because windows can cost more than a console.

ComedyInK i read your topic and it looked like it didnt work for everyone.
"None of the fixes posted work for me..
Same prob, the solution doesn't work for me."

And GTX 460 has about the same performance as those GPUs that i mentioned. So does HD6870 or HD4970. Those were just examples. For someone who doesnt know if his GPU is faster or slower than those mentioned you can look from the Toms Hardware Charts.
http://www.tomshardware.com/charts/2011-gaming-graphics-charts/Gamer-Index,2673.html

My rig....for the most part:


GA-P67A-UD7 LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
SuperClocked 015-P3-1582-AR GeForce GTX 580 (Fermi) 1536MB 384-bit GDDR5 PCI Express 2.0 x16
Core i7-2600K Sandy Bridge 3.4GHz
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866
OCZ Vertex 2 OCZSSD2-2VTXE60G 2.5" 60GB SATA II MLC Internal Solid State Drive
Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM SATA 6.0Gb/s


Haven't noticed any serious performance hits EXCEPT......when playing multiplayer and there are 5 guys shooting each other around the crash site and one dude lobbing in grenades from the launcher.....

I had everything set to ultra and it had noticeable frame rate decrease in this situation only.

Anyone have any suggestion on a program that can run while the game is running to see FPS in real time. I'm kind of new to this aspect of gaming....forgive the ignorance. I built the above rig and set it up, but thats as far as my knowledge goes....the tweaking aspect is a work in progress.

Thanks guys.

Also turn the particle setting down to high. It reduces the quality and life of the particles but still looks good. On ultra setting it's extremely fillrate intensive when up close.