This device driver restriction has led to the development of a third party driver patch, "DeusEx ATI HD Registry Tweak", to unlock the potential of HD 2400 Pro for full support of H.264/VC-1 hardware video decoding. As a result such restriction, the card is deemed as not very useful for hardware video decoding since the majority of the H.264/VC-1 videos on the web are not encoded in those formats (even though the hardware itself is fully capable of doing such decoding work). The device driver, even with the latest stable version, seem to only honor hardware decoding for formats specified in the Blu-Ray and HD-DVD specification. Product: ATI Mobility Radeon HD 4200 Series. ATI Mobility Radeon HD 4200 Series - Driver Download. Several reports from owners of HD 2400 Pro suggest the card do not fully support hardware decoding for all H.264/VC-1 videos. To find the latest driver for your computer we recommend running our Free Driver Scan. Those products were officially supported with the release of Catalyst 7.10 driver, which the cards were named as Radeon HD 2350 series. Reports has that the first batch of the RV610 core (silicon revision A12), only being released to system builders, has a bug that hindered the UVD from working properly, but other parts of the die operated normally. The core has 16 kiB unified vertex/texture cache away from dedicated vertex cache and L1/L2 texture cache used in higher end model. The official PCB design implements only a passive-cooling heatsink instead of a fan, and official claims of power consumption are as little as 35 W. The Radeon HD 2400 series used a 64-bit-wide memory bus. It had 180 million transistors on a 65 nm fabrication process. Radeon HD 2400 series was based on the codenamed RV610 GPU.
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