NVIDIA Forceware 327.23 WHQL XP 64

# GPU Support
* Adds support for the newly released GeForce GTX 590, GeForce GTX 560 Ti and GeForce GTX 550 Ti GPUs.

# Performance
* Increases performance for GeForce 400 Series and 500 Series GPUs in several PC games vs. v266.58 WHQL drivers. The following are examples of some of the most significant improvements measured on Windows 7. Results will vary depending on your GPU and system configuration:
- GeForce GTX 580:
> Up to 516% in Dragon Age 2 (SLI 2560x1600 8xAA/16xAF Very High, SSAO on)
> Up to 326% in Dragon Age 2 (1920x1200 8xAA/16xAF Very High, SSAO on)
> Up to 11% in Just Cause 2 (1920x1200 8xAA/16xAF, Concrete Jungle)
> Up to 11% in Just Cause 2 (SLI 2560x1600 8xAA/16xAF, Concrete Jungle)
> Up to 7% in Civilization V (1920x1200 4xAA/16xAF, Max settings)
> Up to 6% in Far Cry 2 (SLI 2560x1600 8xAA/16xAF, Max settings)
> Up to 5% in Civilization V (SLI 1920x1200 8xAA/16xAF, Max settings)
> Up to 5% in Left 4 Dead 2 (1920x1200 noAA/AF, Outdoor)
> Up to 5% in Left 4 Dead 2 (SLI 2560x1600 4xAA/16xAF, Outdoor)
> Up to 4% in H.A.W.X. 2 (SLI 1920x1200 8xAA/16xAF, Max settings)
> Up to 4% in Mafia 2 (SLI 2560x1600 AA on/16xAF, PhysX = High)
- GeForce GTX 560 Ti:
> Up to 461% in Dragon Age 2 (SLI 1920x1200 8xAA/16xAF, Very High)
> Up to 241% in Dragon Age 2 (1920x1200 4xAA/16xAF, Very High)
> Up to 19% in Just Cause 2 (SLI 2560x1600 8xAA/16xAF, Concrete Jungle)
> Up to 13% in Just Cause 2 (1920x1200 4xAA/16xAF, Concrete Jungle)
> Up to 6% in Far Cry 2 (SLI 2560x1600 8xAA/16xAF, Max settings)
> Up to 5% in Call of Duty: Black Ops (1920x1200 noAA/AF, Jungle Map)
> Up to 5% in H.A.W.X. 2 (SLI 1920x1200 4xAA/16xAF, Max settings)
> Up to 4% in Call of Duty: Black Ops (SLI 2560x1600 4xAA/16xAF, Jungle Map)
> Up to 4% in Civilization V (1920x1200 noAA/AF, Max settings)
> Up to 4% in Left 4 Dead 2 (SLI 1920x1200 4xAA/16xAF, Outdoor)
> Up to 4% in Metro 2033 (SLI 1920x1200 4xAA/16xAF, PhysX on)

# NVIDIA Update
* This is a new feature in Release 270 and later drivers. NVIDIA Update keeps your PC up-to-date with the latest NVIDIA drivers by notifying you when a new driver is available and directing you to the driver on www.nvidia.com. When you install a Release 270 or later GeForce driver from www.nvidia.com, you will be presented with the option to install NVIDIA Update.

# CUDA
* Adds support for applications using CUDA 4.0 features such as Unified Virtual Addressing (UVA) and GPUDirect™ v2.0.

# Other
* Installs HD Audio driver version 1.2.22.1
* Installs PhysX System Software to version 9.10.0514
* Supports the new GPU-accelerated features in Adobe CS5.
* Supports GPU-acceleration for smoother online HD videos with Adobe Flash 10.1. Learn more here.
* Supports the new version of MotionDSP's video enhancement software, vReveal, which adds support for HD output. NVIDIA customers can download a free version of vReveal that supports up to SD output here.
* Supports OpenCL 1.0 (Open Computing Language) for all GeForce 8-series and later GPUs.
* Supports OpenGL 3.3 for GeForce 8-series and later GPUs.
* Supports OpenGL 4.1 on GeForce 400 series and later GPUs.
* Supports single GPU and NVIDIA SLI technology* on DirectX 9 and OpenGL.
* Supports GPU overclocking and temperature monitoring by installing NVIDIA System Tools software.

# GPU Support
* Supports the newly released GeForce GTX 580 and GeForce GTX 570 GPUs.

# Performance
* Increases performance for GeForce 400 Series and 500 Series GPUs in several PC games vs. the latest Release 260 drivers. The following are examples of some of the most significant improvements measured on Windows 7. Results will vary depending on your GPU and system configuration:
GeForce GTX 580:
- Up to 7% in Battlefield Bad Company 2 (1920x1200 4xAA/16xAF)
- Up to 12% in Battleforge (SLI 1920x1200 4xAA/16xAF Very High)
- Up to 11% in Call of Duty: Modern Warfare 2 (SLI 1920x1200 4xAA/16xAF)
- Up to 7% in Dirt 2 (SLI 1920x1200 4xAA/16xAF)
- Up to 7% in Far Cry 2 (1920x1200 4xAA/16xAF)
- Up to 5% in Just Cause 2 (1920x1200 4xAA/16xAF Dark Tower)
- Up to 5% in S.T.A.L.K.E.R.: Call of Pripyat (SLI – 1920x1200 4xAA/16xAF)
- Up to 9% in Stone Giant (SLI 1920x1200, DOF on)
- Up to 8% in Unigine Heaven v2.1 (SLI 1920x1200 4xAA/16xAF)
* Improves performance in Final Fantasy XI on GeForce 400 Series and 500 Series GPUs.

# NVIDIA SLI
* Adds SLI profiles for the following PC games:
- Alien vs. Triangles Demo
- Endless City Demo
- Lionheart: Kings Crusade
- Moscow Racer: Legends of USSR
- Rift: Planes of Telara
- Shaun White Skateboarding
* Enhances SLI profiles for the following PC games:
- Age of Conan
- Arcania: Gothic 4
- Civilization V - DX11
- Lost Planet 2
- World Of Warcraft

# Other
* Installs HD Audio driver version 1.1.13.1
* Installs PhysX System Software to version 9.10.0514
* Supports the new GPU-accelerated features in Adobe CS5.
* Supports GPU-acceleration for smoother online HD videos with Adobe Flash 10.1. Learn more here.
* Supports the new version of MotionDSP's video enhancement software, vReveal, which adds support for HD output. NVIDIA customers can download a free version of vReveal that supports up to SD output here.
* Supports OpenCL 1.0 (Open Computing Language) for all GeForce 8-series and later GPUs.
* Supports OpenGL 3.3 for GeForce 8-series and later GPUs.
* Supports OpenGL 4.1 on GeForce 400 series and later GPUs.
* Supports single GPU and NVIDIA SLI technology* on DirectX 9 and OpenGL.
* Supports GPU overclocking and temperature monitoring by installing NVIDIA System Tools software.
* Users without US English operating systems can select their language and download the International driver

- Added support for the GeForce GTX 580 and GeForce GTX 460 SE.
- This driver package installs NVIDIA PhysX System Software v9.10.0514.
- NVIDIA PhysX acceleration is available on all GeForce 8-series, 9-series, 100-series,200-series, and 400-series GPUs with a minimum of 256MB dedicated graphics memory and a minimum of 32 processor cores.
- This driver package installs the HD audio driver, version 1.1.9.0.

- Added support for the GeForce GTX 580.
- This driver package installs NVIDIA PhysX System Software v9.10.0514.
* NVIDIA PhysX acceleration is available on all GeForce 8-series, 9-series, 100-series,200-series, and 400-series GPUs with a minimum of 256MB dedicated graphics memory and a minimum of 32 processor cores.
- This driver package installs the HD audio driver, version 1.1.9.0.

- Increases performance vs. v260.89 drivers in the following PC games: Civilization V (SLI), Fallout 3, Final Fantasy XIV, and Formula 1 Racing (DX11).
- Improves compatibility for Fallout 3: New Vegas with antialiasing enabled.
- Improves Alt-Tab compatibility for several PC games.

# New GPU Support
* Adds support for the newly released GeForce GT 430 GPU.

# Performance
* Increases performance for GeForce GTX 400 Series GPUs in several PC games vs. v258.96 WHQL drivers. The following are examples of some of the most significant improvements measured on Windows 7. Results will vary depending on your GPU and system configuration:
- GeForce GTX 480:
- Up to 10% in StarCraft II (2560x1600 4xAA/16xAF Ultra)
- Up to 14% in S.T.A.L.K.E.R.: Call of Pripyat (1920x1200 4xAA/16xAF)
- Up to 16% in S.T.A.L.K.E.R.: Call of Pripyat (SLI – 2560x1600 4xAA/16xAF)
- Up to 6% in Aliens vs. Predator (SLI – 1920x1200 noAA – Tessellation on)

* GeForce GTX 460:
- Up to 19% in StarCraft II (SLI – 1920x1200 4xAA/16xAF Ultra)
- Up to 15% in Battlefield Bad Company 2 (SLI – 2560x1600 4xAA/16xAF)
- Up to 12% in S.T.A.L.K.E.R.: Call of Pripyat (2560x1600 noAA)
- Up to 9% in Aliens vs. Predator (1680x1050 4xAA/16xAF – Tessellation on)
- Up to 7% in Metro 2033 (1680x1050 noAA – Tessellation on)
- Up to 11% in Dirt 2 (SLI – 2560x1600 4xAA/16xAF)
- Up to 12% in Crysis:Warhead (SLI – 1920x1200 4xAA/16xAF Gamer)
- Up to 13% in Far Cry 2 (2560x1600 4xAA/16xAF)
- Up to 12% in H.A.W.X (SLI – 1920x1200 4xAA/16xAF SSAO Very High)
- Up to 5% in Just Cause 2 (1920x1200 4xAA/16xAF)
- Up to 22% in Riddick: Assault on Dark Athena (1920x1200 noAA)
- Up to 5% in 3DMark Vantage (Extreme Preset)

# Blu-ray 3D
- Adds support for playing back Blu-ray 3D discs when connecting your GPU to an HDMI 1.4 3D TV. Playback requires compatible software application from CyberLink, ArcSoft, Roxio, or Corel. For more information, NVIDIA Blu-ray 3D website.

# HD Audio
- Adds lossless DTS-HD Master Audio and Dolby TrueHD audio bitstreaming support for compatible Blu-ray movies with GeForce GTX 460 GPUs*.
- Adds high definition 24-bit, 96 and 192 KHz multi-channel audio sampling rate support for compatible Blu-ray movies with GeForce GTX 400 Series ,GT 240, GT 220 and 210 GPUs*.
- Upgrades HD Audio driver to version 1.1.9.0.

# Installation
* New driver installer with enhanced user interface and new Express and Custom installation options.

# NVIDIA Surround
* Updated NVIDIA Surround setup wizard
- After first setup, wizard allows users to jump to any setup step.
- Improved display connection diagrams and tooltips.
- Improved UI for setup and arrangement of displays.
- Improved bezel correction setup experience.
- Adds help page to highlight which in-game resolution to select (e.g. how to pick bezel corrected resolutions)
- Option to dedicate an extra GPU to PhysX or to drive an additional display.
- Allows for portrait or landscape setup directly from the setup wizard.
* Updated 3D Vision Surround and NVIDIA Surround game support list. Please visit the 3D Vision Surround web page for a full list of supported games.

# NVIDIA SLI
- Adds or enhances SLI profiles for the PC games.

* Adds support for GeForce GTX 460.
* Adds additional performance increases for GeForce GTX 400 Series GPUs in several PC games (these improvements are in addition to the previously reported Release 256 improvements). The following are examples of some of the most significant improvements measured with GeForce GTX 480. Results will vary depending on your GPU and system configuration:
- Up to 11% in Aliens vs. Predator (1920x1200 4xAA/16xAF – Tessellation on)
- Up to 7% in Crysis: Warhead (SLI – 1920x1200 4xAA/16xAF – Gamer)
- Up to 4% in H.A.W.X (SLI – 1920x1200 4xAA/16xAF – Very High)
- Up to 10% in Just Cause 2 (SLI – 1920x1200 4xAA/16xAF - Concrete Jungle)
- Up to 6% in Metro 2033 (1920x1200 4xAA/16xAF – Tessellation on)
- Up to 7% in Metro 2033 (SLI – 1920x1200 4xAA/16xAF – Tessellation on)
- Up to 10% in S.T.A.L.K.E.R.: Call of Pripyat (1920x1200 4xAA/16xAF)
- Up to 12% in S.T.A.L.K.E.R.: Call of Pripyat (SLI – 1920x1200 4xAA/16xAF)
- Up to 4% in World in Conflict (SLI – 1920x1200 4xAA/16xAF)
* Upgrades PhysX System Software to version 9.10.0224.
* Upgrades HD Audio driver version 1.0.15.0 (for supported GPUs).
* Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
* Users without US English operating systems can select their language and download the International driver.

* Upgrades PhysX System Software to version 9.10.0223.
* Adds support for OpenGL 4.0 for GeForce GTX 400 Series GPUs.
* Adds support for CUDA Toolkit 3.1 which includes significant performance increases for double precision math operations. See CUDA Zone for more details.
* Adds a new NVIDIA Control Panel setup page for SLI and PhysX for ultimate control over multi-gpu configurations.
* Adds a new NVIDIA Control Panel feature for ultimate control over CUDA GPUs, allowing the user to effectively choose which GPU will power each CUDA application.
* Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
* Users without US English operating systems can select their language and download the International driver.

* This driver version is a WHQL-certified update for the following products:
- GeForce GTX 480
- GeForce GTX 470

* This driver package installs NVIDIA PhysX System Software v9.10.0129.
- NVIDIA PhysX acceleration is available on all GeForce 8-series, 9-series, 100-series, and 200-series GPUs with a minimum of 256MB dedicated graphics memory and a minimum of 32 processor cores.

* This driver package installs the HD audio driver, version 1.0.9.1.

- Recommended for the best performance with the new GPU-accelerated features in Adobe CS5.
- Adds support for the new version of MotionDSP's video enhancement software, vReveal.

* Adds support for Next Generation ION.
* Adds support for GeForce GT 320, GeForce GT 330, and GeForce GT 340.
* Upgrades PhysX System Software to version 9.10.0129.
* Upgrades HD Audio driver to version 1.0.9.1 (for supported GPUs).
* Increases performance in several PC games from v196.21 WHQL. The following are examples of measured improvements. Results will vary depending on your GPU and system configuration:
- Up to 13% performance increase in Crysis: Warhead with a single GPU
- Up to 30% performance increase in Crysis: Warhead with SLI technology
- Up to 13% performance increase in H.A.W.X with single GPU
- Up to 15% performance increase in H.A.W.X with SLI technology
- Up to 30% performance increase in Left 4 Dead with single GPU
- Up to 28% performance increase in Left 4 Dead with SLI technology
* Adds SLI and multi-GPU support for top new gaming titles including Assassin Creed II, Battlefield: Bad Company 2, Command and Conquer 4: Tiberium Twilight, Grand Theft Auto IV: Episodes from Liberty City, Mass Effect 2, Napoleon: Total War, and Zombie Driver.
* Enhanced SLI support for Metro 2033, Supreme Commander 2, Unigine, and World of Warcraft
* Adds override anti-aliasing support for Mass Effect 2.
* Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
* Users without US English operating systems can select their language and download the International driver.

* Adds SLI and multi-GPU support for many top new gaming titles including Avatar Demo, Battlefield: Bad Company 2, City Bus Simulator, Dirt 2, Ferrari Virtual Race, GREED: Black Border, Mass Effect 2, Mortal Online, Ninja Blade, Operation Flashpoint: Dragon Rising Demo, Planet 51, RUSE, Serious Sam HD, and Wings of Prey.
* Upgrades PhysX System Software to version 9.09.1112.
* Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
* Users without US English operating systems can select their language and download the International driver

* Adds GPU-acceleration for smoother online HD videos with the new Adobe Flash 10.1 beta. Learn more here.
* Adds support for GeForce GT 240.
* Adds support for OpenCL 1.0 (Open Computing Language) for all GeForce 8-series and later GPUs.
* Adds support for CUDA Toolkit 3.0 features and performance enhancements. See CUDA Zone for more details.
* Adds SLI and multi-GPU support for many top new gaming titles including Borderlands, Call of Duty: Modern Warfare 2, FIFA Soccer 10, and more.
* Includes numerous bug fixes including improved performance for Need for Speed: Shift. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
* Users without US English operating systems can select their language and download the International driver here.

# Adds support for OpenGL 3.2 for GeForce 8, 9, 100, and 200-series GPUs and ION GPUs.
# Accelerates performance in several gaming applications. The following are examples of improvements measured with version 191.07 drivers vs. version 190.62 drivers (results will vary depending on your GPU, system configuration, and game settings):
* Up to 12% performance increase in ARMA 2
* Up to 8% performance increase in Batman: Arkham Asylum with GPU PhysX enabled
* Up to 50% performance increase in Call of Juarez: Blood in Bound with SLI enabled
* Up to 14% performance increase in Fallout 3 (indoor scenes) with antialiasing enabled
* Up to 10% performance increase in Far Cry 2 (DX9 version) with antialiasing enabled
* Up to 34% performance increase in Prototype with antialiasing enabled
# Adds SLI support for Aion, Darkfall, Dawn of Magic 2: Time of Shadows, Dreamkiller, Fuel, Majesty 2: The Fantasy Kingdom Sim, Need for Speed: Shift and more.
# Includes numerous bug fixes, including the following key fix (additional bug fixes can be found in the release notes on the documentation tab): For graphics cards supporting multiple clock states, 3D clocks correctly return to 2D clocks after exiting a 3D application.
# Users without US English operating systems can select their language and download the International driver

New in Release 190.62

* Optimized for the latest PhysX gaming titles: Batman: Arkham Asylum and Darkest of Days.
* Installs PhysX System Software version 9.09.0814.
* Includes several bug fixes.

Single-GPU Resolved Issues and Changes

* GeForce 9800 GX2: Rainbow Six Vegas 2–the game hangs or crashes before the loading screen when launched with the default settings. [570878]

Multi-GPU Resolved Issues and Changes

* [SLI], GeForce 8600 GT: The display resolution changes after enabling or disabling SLI mode. [541902]