AMD 900 series
|AMD 900 or 9 series chipset|
|Supported CPU (s)|| FX
|Supported Sockets||AM3 +|
|Southbridge (s)||SB950, SB920|
|Desktop / Mobile|
|predecessor||AMD 800 series|
The AMD 900 series is a chipset family from AMD for processors of the FX series (code name "Bulldozer"). Thanks to downward compatibility, old processors of the K10 generation can also be used in mainboards with socket AM3 + . The chipset series 900 is the successor to the AMD 800 series and was officially presented on June 1, 2011. One of the innovations compared to the 800 series is support for SLI .
The IOMMU has also been integrated into all models in the 900 series. Among the 800 series models, only the 890FX northbridge contained an IOMMU.
All chipsets are named after the Northbridge used.
|model||Code name||Publication date||Manufacturing
|CPU connection||IGP||PCIe 2.0 lanes||Southbridge||Multi-GPU technology||TDP||Others|
|AMD 990FX||RD990||June 1, 2011||65 nm||2.6 GHz HT 3.0||-||42 lanes||SB950||ATI Crossfire X , SLI||19.6 W|
|AMD 990X||RD980||June 1, 2011||65 nm||2.6 GHz HT 3.0||-||22 lanes||SB950||ATI Crossfire X , SLI||14 W.|
|AMD 980G||RS880||June 1, 2011||55 nm||2.0 GHz HT 3.0||ATI Radeon HD 4250||22 lanes||SB850 / SB710||ATI Crossfire X||18 W||Identical to AMD 880G|
|AMD 970||RX980||June 1, 2011||65 nm||2.4 GHz HT 3.0||-||22 lanes||SB950 / SB920||ATI Crossfire X||13.6 W|
|PCI connectors||PCI Express 2.0 ports||PATA||SATA||Supported RAID Modes||USB connections||Ethernet||Audio|
|SB920||65 nm||4 (Rev. 2.3, 33 MHz)||2||-||6 × SATA III (6 Gbit / s)||0, 1, 10||14 × USB 2.0||k. A.||HDA|
|SB950||65 nm||4 (Rev. 2.3, 33 MHz)||4th||-||6 × SATA III (6 Gbit / s)||0, 1, 5, 10||14 × USB 2.0||k. A.||HDA|
- Christian Hirsch (heise online): Mainboard manufacturers reveal details about Llano and Bulldozer. June 3, 2011, accessed June 19, 2011 .
- Anton Karmehed (Nordic Hardware): AMD Bulldozer series 9 chipset detailed. January 21, 2011, accessed July 20, 2011 .