| Part Number | A780GMH/128M |
| Manufacturer | ASRock |
| Chipset | 780G |
| North Bridge | 780G |
| Socket | Socket AM2+, Socket AM3 |
| Memory speed | 1066/800/667/533 |
| Processor Types | Athlon 64 X2 Dual Core/Athlon 64/ Sempron/Phenom/Phenom II |
| Number of CPUs | 1 |
| HT Speed | Up to 5200MT/second |
| Memory Type | DDR2 |
| Memory Channels | Double |
| Maximum Memory | 16GB |
| External Graphics | PCI Express x16 |
| IGP | ATI Radeon HD 3200 |
| South Bridge | SB710 |
| Audio | 8-channel |
| IDE | 133/100/66 |
| SCSI | None |
| SATA | 3.0 GB/s |
| RAID | 0, 1, 0+1, 5, 10 |
| LAN | 10/100/1000 4 LAN Ports |
| Firewire | IEEE 1394a |
| USB | USB 2.0 |
| BIOS | AMI |
| Form Factor | ATX |
This board is rather unique in being the only motherboard with the combination of a 780G (HD 3200) and the SB 710 Southbridge. The HD 3200 on the motherboard is a slower version of the HD 3300 found on motherboards with the 790GX chip on them. The HD 3200 is clocked at a clock speed of 500MHz for the core, compared to 700MHz on the HD 3300. The ASRock board also has 128MB of DDR3-1333MHz dedicated for an onboard frame buffer to speed up graphics.
Hybrid CrossfireX is an interesting but not very useful feature at this time. This works by combining the power of the HD 3200 with a discrete graphics card. The problem with Hybrid CrossfireX is that it only supports the HD 3450 card. Those wanting the ultimate in performance from their new AMD system would install a HD 4890 or HD 4870 instead of using the HD 3450 which will not improve performance that much.
AMD has moved from the Socket AM2+ interface found on earlier CPUs to the Socket AM3 interface with their 45 nanometer processors and adding support for DDR3 memory. The transition to the Phenom II series of CPUs means that there are AM2+ processors running faster than their AM3 counterparts. As there are two pins missing on the AM3 CPUs you can use AM3 CPUs on AM2+ motherboards, but can't use AM2+ CPUs on AM3 motherboards due to the missing support for DDR3 on the CPU.
