Catalyst 11.3 is out and makes OpenCL mandatory, AMD APP SDK now at version 2.4

A little later than usual - both from my side and from AMD's - but still well within time, the Catalyst driver suite for AMDs Radeon line of graphics accelerators has been updated to version 11.3 WHQL. The OpenCL driver portion has been promoted to being an integral part of the standard driver package, thus being included in the standard download. AMD touts this as seamless GPU-Compute in their Release Notes for this catalyst driver (which I've also attached as archive in case their website structure is changed and breaks the link). If you really don't want it, you can deselect it in the custom installation procedure. Additionally, the former AMD Stream SDK now called AMD APP SDK for GPU-Computing has been moved to version 2.4.The whole list of improvements is posted over at AMDs Release Notes website. This time around there are no breathtakingly ub0r-awesome improvements, mostly a bug-fixing release. Regarding supported cards, the Catalyst 11.3 WHQL is basically covering the whole line-up since AMDs first DirectX 10 capable cards in the HD 2000 series. Notable exceptions from the rule are the yet pretty much unreleased cards from the HD 6450, HD 6500 and 6600 series as well as the salvage part for Barts, the HD 6790 (Barts LE). For those cards, there's a Catalyst 11.4a Hotfix driver available, but I am only able to find the Windows XP version on AMDs site. For HD 6790 however, you can opt to use the Catalyst 11.4 Early Preview (Codename „Mjölnir”), which is available too and is a more performance oriented version.As always you can go over to AMDs official download-site or use the links below - they might work or not though:[/LEFT]Background and useful links regarding AMD Catalyst driver
1. AMD App SDK 2.4
If you are into open standards as AMD is, you should try installing the AMD App SDK 2.4 formerly known as Ati Stream SDK. OpenCL 1.1 conformance is assured by AMD for basically all DirectX 11 conformant Radeons, meaning from the HD 5400 series up to the HD 6900 series with the exception of HD 6700 series which includes some renamed Juniper-based SKUs as well as the Barts salvage part HD 6790. Also - and quite curiously - the HD 6990, which with it's two-GPU-power of over 5 TFLOPS would be quite a nice computing device, is not supported as of the list posted on April 16th 2011 and additionally, HD 5970 is only supported in single-GPU mode.
Beta support for OpenCL 1.0 is available for Radeon HD 4890, 4870 X2, 4870, 4850 X2, 4850, 4830, 4770, 4670, 4650, 4550, 4350. The general support in the Stream SDK 2.4 is true as well for the corresponding FirePro and Radeon Mobility variants. Since version 2.3 AMD is supporting their Fusion-APUs C- and E-series in OpenCL as well as the Radeon HD 6900 based on the Cayman chip, double precision calculations are still limited to the CPU as I only get a „not supported” message when trying to run them on my HD 5870.As you may have noticed, separate versions for Windows XP are no longer offered. A footnote on AMDs developer website indicates that XP support is still included in the 32 and 64 Bit installers respectively; but that surely is a hint of a soon-to-be-announced discontinuance for Windows XP support in the APP SDK.

2. Archived Drivers - for the bug-ridden of you
For all you part-time historians and archivars, AMD keeps their old drivers for quite a while at their site.3. Radeon with AGP interface - Hotfix awaits
Also, there's the special page for the now inofficial AGP-versions of the drivers. God knows why they're not worthy of a WHQL-sign any more (my guess it's cost-related…). Anyway, here they are:4. Legacy Driver for Radeon 9500/9700 series to X1950 series: 10.2
For all you brave souls hanging onto your trusty Radeon 9x00, X300, X550, X600, X700, X8x0, X1K, X2100 and Radeon Xpress Integrated Graphics, there's hope. Sometimes, when the stars' constellations are aligned just right, a new driver for the officially no longer supported graphics chipsets is spawning at the following sites:
Overview about supported standards and functionality
And now for the „GPU-Tech.org added value”, I am promising to deliver. Here's the supported standards and tech for most of the recent desktop Radeon cards - something that's not very well documented on the web, not to speak of being crammed into one single place.

Radeon HD 6970/6950 (Cayman based):
Radeon HD 6870/6850/6790 (Barts based):
Radeon HD 6670/6650 (Turks based):
Radeon HD 6450 (Caicos based):
Radeon HD 5970 (Cypress based):Radeon HD 5870/5850/5830 (Cypress based):Radeon HD 5770/5750 (Juniper based): Radeon HD 5670/5650/5570 (Redwood based):Radeon HD 5450 (Cedar based): Radeon HD 4890/4870/4850/4830/4730 (RV770/790 based):Radeon HD 4770 (RV740 based):Radeon HD 4670/4650 (RV730 based):Radeon HD 4550/4350 (RV710 based):Radeon HD 3870/3850 (RV670 based):Radeon HD 3650 (RV635 based):Radeon HD 3470/3450 (RV615 based):Radeon HD 2900 XT/Pro/GT/OEM (R600 based):Radeon HD 2600 XT/Pro (RV630 based):Radeon HD 2400 XT/Pro (RV610 based):