Guide to incorporate PhysX on laptops with GPU NVIDIA
August 30, 2008, 1:13 am
Note, with the name in the title Radeon HD 3850 - I for graphics, GeForce 9600GT - then my physics aroused interest among readers. Most likely, yet it represents only a practical interest and is not applied character. But, quite possibly, soon we are waiting game technology to support PhysX. Owners of laptops could ask about the possibility of including physics acceleration forces graphic processor. We also decided to check whether this is possible. For the experiment was selected notebook ASUS G1S, product pozitsioniruemy as playing a decision, which is processor Core 2 Duo T7500 (2, 2 GHz) and Video GeForce 8600M GT, equipped with DDR3 memory standard volume of 256 MB. Of course, performance for some users may not be sufficient, but we assumed an average laptop, not cheap and not very expensive. The main instrument, rather, even a measure of information and test program was selected PhysX FluidMark. So, the main problem faced by owners of laptops - is the drivers. For desktop solutions with an enviable drivers are updated periodically, but not mobile. For the success of the ligament of video cards and software PhysX NVIDIA drivers are needed to ensure the work platform CUDA. After installing utilities PhysX FluidMark and attempts to pass a test vyskakivaet message that the drivers are missing in the system PhysX. installing them and try again, we are witnessing another message informing that the ForceWare drivers do not support technology CUDA. And here begins the most important, the work of the drivers. Download drivers ForceWare release 174. 31 under the operating system Windows Vista, need to modify them with the help of DH Mobility Modder. NET nVidia Edition. Unpack drivers, run the program. Ukazyvaem to them the way and push the button"Modify". Then, through the dispatcher updating their devices. In PhysX properties now available opportunity to enable or disable acceleration forces of physics graphics processor. So, it is time to test. What growth will be obtained when you turn accelerate physics ? The first screenshot result without the support of acceleration in hardware, by the processor. After completing the test program gives 522 points. The following screenshot demonstrates that with hardware acceleration support for physics, system performance is testing PhysX FluidMark grew by 114% and became equal 1119 points. In addition, the interesting point is to reduce the maximum FPS. This suggests that won in physics, losers in the schedule. Another confirmation that use as a graphics accelerator physics and the same graphics adapter will not be profitable. Everyone should do his own job, if it comes, at least on gaming applications. In addition, removing the processor to 2600 MHz frequency, the result was received equal to 619 points. In other words, increasing the operating frequency processor by 18%, was received by gains in calculating physicist equal the same number, linear dependence. The same almost linear dependence observed in dispersing the graphic processor. Removing GeForce 8600M GT to 650 MHz on the core, that percentage equal to 36% on face value, the result was received equal 1488 points or 33% increment. As a withdrawal can say the following. So far, no time has come. Yes, it works. But for a single drop FPS adapter can be critical, then replaced the joy of what physics is accelerating, comes understanding that it is impossible to play because of lack of system performance to address two tasks at once.
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