The Portland Group, a wholly-owned subsidiary of STMicroelectronics and a leading supplier of compilers for high-performance computing (HPC), today announced it is developing a CUDA C compiler targeting systems based on the industry-standard general-purpose 64- and 32-bit x86 architectures. The new PGI CUDA C compiler for x86 platforms will be demonstrated at the SC10 Supercomputing conference taking place in New Orleans, LA, November 13-15, 2010.

The NVIDIA CUDA architecture was developed to enable offloading computationally intensive kernels to massively parallel GPUs. Through function calls and language extensions, CUDA gives developers explicit control over the mapping of general-purpose computational kernels to GPUs, as well as the placement and movement of data between an x86 processor and the GPU.

Less than a week since they released the 185.66 BETA drivers (which in themselves superceeded the 182.50 WHQL and 185.65 BETA drivers in the space of 24 hours), NVIDIA has released yet another GeForce BETA Driver of version number 185.68. From these latest BETA releases, it seems NVIDIA has dropped support for the 8-Series graphics cards which as of now are only supported using the 182.50 WHQL driver. With the recent release of so many driver revisions from NVIDIA, it could be their answer to what EVGA were trying to do with their SLI Enhancement Patches, to keep up to date with the latest releases. This driver supports GeForce 9-series, 100-series, and 200-series desktop GPUs, the only documented change in this version over the 185.66 BETA drivers is:

• Optimized performance for the PC game The Chronicles of Riddick: Assault on Dark Athena

DOWNLOAD: GeForce 185.68 BETA for Windows XP 32-bit | Windows XP 64-bit | Windows Vista 32-bit | Windows Vista 64-bit

The day after releasing the GeForce 182.50 WHQL drivers, NVIDIA has also released a GeForce BETA driver with version 185.66, for both Windows Vista and XP.

New in Release 185.66:

• Adds support for the new GeForce GTX 275 GPU.
• Adds support for Ambient Occlusion - the newest NVIDIA Control Panel feature to offer enhanced 3D gaming realism exclusively to GeForce GPUs. (Vista Only)
• Adds support for CUDA 2.2 for improved performance in GPU Computing applications. See nvidia.com/cuda for more details.
• Accelerates performance in several 3D applications. The following are examples of improvements measured with Release 185 drivers vs. Release 182 drivers (results will vary depending on your GPU, system configuration, and game settings):
  - Up to 11% performance increase in Call of Duty: World at War
  - Up to 5% performance increase Company of Heroes: Opposing Fronts
  - Up to 22% performance increase Crysis: Warhead with antialiasing enabled
  - Up to 11% performance increase in Fallout 3 with antialiasing enabled
  - Up to 14% performance increase in Far Cry 2
  - Up to 45% performance increase in Mirror's Edge with antialiasing enabled
• Supports GeForce Plus Power Pack #3. Download these FREE PhysX and CUDA applications now!
• Numerous bug fixes. Refer to the release documentation notes.

DOWNLOAD: GeForce 185.66 BETA for Windows XP 32-bit | Windows XP 64-bit | Windows Vista 32-bit | Windows Vista 64-bit

UPDATE: The day following the release of the 185.65 BETA drivers this article originally covered, NVIDIA removed the driver links and updated the BETA to 185.66, this article has therefore been updated accordingly.

Just over a week since we covered the release of the 182.05 BETA driver, NVIDIA have now released a WHQL with version number 182.06. The driver has been released for both 32-bit and 64-bit versions of Windows XP and Vista and is for GeForce 6, 7, 8, 9, and 200-series desktop GPUs.

New in Release 182.06:

• Recommended for the best experience in F.E.A.R. 2: Project Origin.
• Boosts performance in numerous 3D applications. The following are some examples of improvements measured with Release 182.06 WHQL drivers vs. Release 181.22 WHQL drivers (results will vary depending on your GPU, system configuration, and game settings):
• Up to 8% performance increase in Fallout 3 at high resolution and AA.
• Up to 10% performance increase in F.E.A.R. 2: Project Origin.
• Up to 9% performance increase in Half-Life 2 at high resolution with AA.
• Up to 11% performance increase in Left 4 Dead at high resolution with AA.
• Up to 10% performance increase in Race Driver: GRID at high resolution and AA.
• Includes full support for OpenGL 3.0 on GeForce 8-series, 9-series, and 200-series GPUs.
• Automatically installs the new PhysX System Software version 9.09.0203.
• Additional information on specific bug fixes can be found in the release documentation notes.

DOWNLOAD NVIDIA Forceware 182.06 WHQL for Windows XP 32-bit | Windows Vista 32-bit | Windows XP 64-bit | Windows Vista 64-bit

So, it turns out that Microsoft was developing a new version of Windows Live Messenger, released it, and is trying to get everyone on the upgrade bandwagon. While everyone running the previous/beta versions of Windows Live Messenger will be getting pretty prompts, it seems that there is a small problem. Anyone running a 64-bit operating environment, whether or not you're running XP or Vista, cannot upgrade to the latest version of Windows Live Messenger. In fact, it almost seems like Microsoft has dumped an x64 version of Windows Live Messenger altogether. The most recent version available for x64 customers is 8.1, while the current version is 8.5.