| 790FX * Codenamed RD790, final name revealed to be "AMD 790FX chipset" [9] * Dual-socket (Quad FX, Dual Socket Direct Connect (DSDC) Architecture) or single AMD processor configuration * Maximum four physical PCI-E x16 slots and discrete PCI-E x4 slot [10], the chipset provides a total of 42 lanes solely in the Northbridge * HyperTransport 3.0 with support for HTX slots [10] and PCI Express 2.0 * ATI CrossFire X * AutoXpress * AMD OverDrive * Energy efficient Northbridge design o 65 nm CMOS fabrication process manufactured by TSMC * Extreme overclocking, reported to have achieved about 420 MHz bus for overclocking an Athlon 64 FX-62 processor [11], from originally 200 MHz. * Optional discrete chipset cache memory of at least 16 KB to reduce the latencies and increase the bandwidth [10] * Supports Dual Gigabit Ethernet, and teaming option [10] * Reference board codenamed "Wahoo" [12] for dual-processor system reference design board with three physical PCI-E x16 slots, and "HammerHead" for single-socket system reference design board with four physical PCI-E x16 slots, also notable was the reference boards includes two ATA ports and only four SATA 3.0 Gbit/s ports (as being paired with SB600 southbridge). * Will pair with SB750 southbridge with support up to six SATA ports and enhanced Phenom processors overclocking via ACC functionality, and will later support Socket AM3 with DDR3 SDRAM support in the first quarter of 2009. * Enthusiast discrete multi-graphics segment 790X * Codenamed RD780, final name revealed to be "AMD 790X chipset" [13] * Single AMD processor configuration * Two physical PCI-E x16 slots (one 16x and one 8x electrically. In Crossfire mode, both will revert to 8x electrically) * HyperTransport 3.0 and PCI Express 2.0 * ATI CrossFire * AutoXpress * AMD OverDrive * Energy efficient Northbridge design o 65 nm CMOS fabrication process manufactured by TSMC * Mobile version (codenamed RD780M) planned, supporting CrossFire for two AXIOM/MXM discrete mobile GPUs [14] * Can pair with SB750 southbridge with support up to six SATA ports and enhanced Phenom processors overclocking via ACC functionality. * Supports Socket AM3 with DDR3 SDRAM depending on motherboard BIOS * Performance discrete multi-graphics segment |
