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 Dr. Adrian Wong
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The NVIDIA PhysX Tech Report
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Testing PhysX

Testbed

Processor

Intel Core i7-965 Extreme Edition

Motherboard

ASUS P6T Deluxe (Intel X58 Express)

Memory

Two Kingston 1 GB PC3-11000 DDR3 modules

Graphics Card

NVIDIA GeForce GTX 295
NVIDIA GeForce GTX 280
ATI Radeon HD 4870
NVIDIA GeForce GTX 260 (192 SP)

Hard Drives

Western Digital 300 GB VelociRaptor

Operating System

Microsoft Windows Vista 64-Bit

Power Supply

Mushkin 580W PSU

 

The Graphics Cards

Graphics Card

Core Clock

Memory Clock

Memory Bus Width

Driver

NVIDIA GeForce GTX 295

576 MHz

999 MHz

448-bits x 2

NVIDIA ForceWare 190.38

NVIDIA GeForce GTX 280

602 MHz

1107 MHz

512-bits

NVIDIA ForceWare 190.38

ATI Radeon HD 4870

750 MHz

900 MHz

256-bits

ATI Catalyst 9.7

NVIDIA GeForce GTX 260 (192 SP)

576 MHz

999 MHz

448-bits

NVIDIA ForceWare 190.38

 

Testing Methodology

Cryostasis supports PhysX and generates incredible amounts of physics calculations, to the point of crippling even an Intel Core i7 Extreme Edition CPU. It is a good test of the potential of PhysX and any future game that may feature more realistic physic calculations.

All games were tested at 1920 x 1200 at 16x AF and no AA, unless stated otherwise. A minimum of 5 test runs were performed at each setting. The three closest results were taken and averaged to obtain the final frame rate. If the test results varied too much, the entire test was repeated.

 

Game Settings

Game

Version

Resolutions

Settings

Cryostasis

1.0

1920 x 1200
1600 x 1200
1280 x 1024

Texture Resolution : High
Normal Maps : High
Specular Maps : High
Shadows : High
Motion Blur : Yes
Camera Motion Blur : Yes
Water Caustic : Yes
Anisostropic : x16
No Sound : No

 

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Page

Topic


1

Introduction
What Is PhysX?

2

Why Is Physics Acceleration Important?
What Can Game Physics Do?

3

The Two Physics Engines
Is Physics Better On The CPU Or The GPU?

4

Testing PhysX

5

NVIDIA GeForce GTX 295 Results
NVIDIA GeForce GTX 280 Results

6

NVIDIA GeForce GTX 260 Results
CPU Vs. GPU Performance Summary

7

NVIDIA Vs. ATI Comparison
Conclusion



 
   
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