The reason seems a little contradictory.
AMD has released its 13.10 Beta2 driver, and Nvidia has released its 331.40 Beta driver, both with optimizations for the Battlefield 4 beta.
AMD has released its Catalyst 13.10 Beta drivers that bring performance improvements to CrossFire systems.
It appears that AMD's current Radeon HD 7000 series graphics cards might not have complete support for the upcoming DirectX 11.2.
AMD has released its new Catalyst 13.8 beta graphics drivers, the main highlight of which is the fix for the frame-latency problems experienced on older drivers.
Windows 8.1 will feature native support for 3D printers, much in same fashion as conventional printers.
AMD has tweeted that it is working on drivers that should fix the micro-stutter problems experienced on systems with multi-GPU setups.
The GeForce 320.00 Beta drivers offer up to 20 percent better performance than the GeForce 314.22 and add a number of SLI profiles.
This update for Intel HD Graphics 4000 / 2500 provides a range of performance improvements and support for OpenCL 1.2.
Intel's GDC presentation included new rendering extensions for Intel HD Graphics, Intel Quick Sync Video and updates to the Intel Level Up and Perceptual Computing contests.
Intel is increasing performance while reducing power thanks to drivers set to be released this week for the Intel HD Graphics 4000 GPU.
The latest GeForce drives offer performance improvements in BioShock: Infinite, Sleeping Dogs, Sniper Elite V2 and others
Nvidia has released its new 314.22 WHQL drivers and they carry some pretty impressive performance improvements.