"CoolBits" is an extended control application. I personally use an ATI X800PRO vid card,so I use the "ATI Tray Tools" control app. They are both similar in the flexibility in that they offer the ability to set variables not found in the standard apps. ATI Tray Tools does offer "soft overclocking" and I believe CoolBits offers that option as well. It is more important to get CoolBits for the "Frames to Render Forward" (set it to 1 (one))setting though.
Get CoolBits here
http://downloads.guru3d.com/download.php?det=815
If you want to use the same NVTweak 1.71 as in the GRAW Tweakguide so you can follow step by step.....get it here
http://downloads.guru3d.com/download.php?det=911
GRAW has a nice patch due out very soon!
Be sure to view the GRAW tweak Guide for helpful tips
http://www.tweakguides.com/GRAW_1.html
Here's the important part copied/pasted from the TweakGuide:
Max Frames to Render Ahead
This tweak gained prominence with Oblivion, and is covered on the last page of my Oblivion Tweak Guide. I'll reproduce the same description here as it applies in precisely the same way: The setting in question is called 'Max Frames to Render Ahead', and it is usually hidden from the normal Nvidia Forceware Control Panel options. To enable it, I recommend using NVTweak 1.71, since NVTweak is easier to use to enable/disable this option (compared to Coolbits) and has other functionality which can come in handy. Run NVTweak and tick the 'Additional Direct3D' box, then close NVTweak. Now go into your Forceware Control Panel, and under the 'Performance & Quality Settings' item you will find a new item called 'Additional Direct3D Settings', click on it and you will see this option.
You can find out more about how to use NVTweak on this page of my Nvidia Forceware Tweak Guide. You will also find more information about the 'Max Frames to Render Ahead' option on that page, as well as other hidden options for the Forceware Control Panel. For ATI users, you can adjust the 'Flip Queue' setting which is the equivalent setting to the one above by installing and using ATI Tray Tools. The same values apply to both cards.
The amount of data produced by the GRAW engine means it can saturate your CPU and/or Video RAM with pre-rendered frames (whole screens ready to be displayed). On most systems this can result in noticeable mouse and/or keyboard lag, even when your FPS is reasonably high enough not to usually suffer from this (e.g. 25-30FPS+). By reducing the maximum number of frames to render in advance, you reduce this bottlenecking effect and hence significantly reduce or remove the mouse lag.
However, here's the important part: this is not a tweak for improving FPS as such. The general recommendation to set 'Max Frames to Render Ahead' (or 'Flip Queue') from its default of 3 down to 0 will actually reduce performance on many systems, particularly Dual Core or HyperThreading CPUs. Secondly, even on single core systems, you may notice reduced performance in certain areas. So on balance I strongly recommend setting this value to 2 to start with, and if you still have mouse lag, dropping it down to 1. Remember, not all mouse lag is due to this setting: in areas where you have very low FPS (i.e. below 10-15FPS), you will get lagginess - this occurs in virtually any game where your FPS drops down to the low teens or single digits. You will have to consider changing other settings to increase overall FPS. Also refer to the Troubleshooting Tips section for more details.
THAT IS ALL
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