ASRock > Motherboard Compare Result

Model	FM2A75M-DGS	FM2A55M-DGS

Form Factor	- Micro ATX Form Factor - Solid Capacitor for CPU power	- Micro ATX Form Factor - Solid Capacitor for CPU power
Unique Feature	- ASRock Extreme Tuning Utility (AXTU) - ASRock Instant Boot - ASRock Instant Flash - ASRock APP Charger - ASRock XFast USB - ASRock XFast LAN - ASRock XFast RAM - ASRock Crashless BIOS - ASRock OMG (Online Management Guard) - ASRock Internet Flash - ASRock UEFI System Browser - ASRock Dehumidifier Function - ASRock Easy RAID Installer - ASRock Interactive UEFI - Hybrid Booster: - ASRock U-COP< / font>	- ASRock Extreme Tuning Utility (AXTU) - ASRock Instant Boot - ASRock Instant Flash - ASRock APP Charger - ASRock XFast USB - ASRock XFast LAN - ASRock XFast RAM - ASRock Crashless BIOS - ASRock OMG (Online Management Guard) - ASRock Internet Flash - ASRock UEFI System Browser - ASRock Dehumidifier Function - ASRock Easy RAID Installer - ASRock Interactive UEFI - Hybrid Booster: - ASRock U-COP< / font>
CPU	- Support for Socket FM2 100W processors - Supports AMD's Cool 'n' Quiet Technology - UMI-Link GEN2	- Support for Socket FM2 100W processors - Supports AMD's Cool 'n' Quiet Technology - UMI-Link GEN2
Chipset	- AMD A75 FCH (Hudson-D3)	- AMD A55 FCH (Hudson-D2)
Memory	- Dual Channel DDR3 memory technology - 2 x DDR3 DIMM slots - Supports DDR3 2400+(OC) / 2133(OC) / 1866 / 1600 / 1333 / 1066 non-ECC, un-buffered memory - Max. capacity of system memory: 32GB* - Supports Intel Extreme Memory Profile (XMP) 1.3 / 1.2 - Supports AMD Memory Profile (AMP) To reach the maximum 32GB of system memory, memory modules with 16GB capacity or above are required. ASRock will update the memory support list on the official website once these memory modules are available on the market. *Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.	- Dual Channel DDR3 memory technology - 2 x DDR3 DIMM slots - Supports DDR3 2400+(OC) / 2133(OC) / 1866 / 1600 / 1333 / 1066 non-ECC, un-buffered memory - Max. capacity of system memory: 32GB* - Supports Intel Extreme Memory Profile (XMP) 1.3 / 1.2 - Supports AMD Memory Profile (AMP) To reach the maximum 32GB of system memory, memory modules with 16GB capacity or above are required. ASRock will update the memory support list on the official website once these memory modules are available on the market. *Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Slots	- 1 x PCI Express 2.0 x16 slot (PCIE1 @ x16 mode) - 1 x PCI Express 2.0 x1 slot - 1 x PCI slot - Supports AMD Dual Graphics	- 1 x PCI Express 2.0 x16 slot (PCIE1 @ x16 mode) - 1 x PCI Express 2.0 x1 slot - 1 x PCI slot - Supports AMD Dual Graphics
Graphics	- Integrated AMD Radeon HD 7000 series graphics in A-series APU - DirectX 11, Pixel Shader 5.0 - Max. shared memory 2GB - Two graphics output options: Support DVI and D-Sub ports by independent display controllers - Supports Dual-link DVI with max. resolution up to 2560x1600 @ 75Hz - Supports D-Sub with max. resolution up to 1920x1600 @ 60Hz - Supports AMD Steady Video™ 2.0: New video post processing capability for automatic jitter reduction on home / online video - Supports HDCP function with DVI port - Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback with DVI port	- Integrated AMD Radeon HD 7000 series graphics in A-series APU - DirectX 11, Pixel Shader 5.0 - Max. shared memory 2GB - Two graphics output options: Support DVI and D-Sub ports by independent display controllers - Supports Dual-link DVI with max. resolution up to 2560x1600 @ 75Hz - Supports D-Sub with max. resolution up to 1920x1600 @ 60Hz - Supports AMD Steady Video™ 2.0: New video post processing capability for automatic jitter reduction on home / online video - Supports HDCP function with DVI port - Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback with DVI port
Audio	- 5.1 CH HD Audio (Realtek ALC662 Audio Codec)	- 5.1 CH HD Audio (Realtek ALC662 Audio Codec)
Lan	- PCIE x1 Gigabit LAN 10 / 100 / 1000 Mb / s - Realtek RTL8111E - Supports Wake-On-LAN - Supports LAN Cable Detection - Supports Energy Efficient Ethernet 802.3az - Supports PXE	- PCIE x1 Gigabit LAN 10 / 100 / 1000 Mb / s - Realtek RTL8111E - Supports Wake-On-LAN - Supports LAN Cable Detection - Supports Energy Efficient Ethernet 802.3az - Supports PXE
WiFi	- n/a	- n/a
Rear Panel I/O	I / O Panel - 1 x PS / 2 Mouse Port - 1 x PS / 2 Keyboard Port - 1 x D-Sub Port - 1 x DVI-D Port - 4 x Ready-to-Use USB 2.0 Ports - 2 x Ready-to-Use USB 3.1 Gen1 Ports - 1 x RJ-45 LAN Port with LED (ACT / LINK LED and SPEED LED) - HD Audio Jack: Line in / Front Speaker / Microphone	I / O Panel - 1 x PS / 2 Mouse Port - 1 x PS / 2 Keyboard Port - 1 x D-Sub Port - 1 x DVI-D Port - 4 x Ready-to-Use USB 2.0 Ports - 1 x RJ-45 LAN Port with LED (ACT / LINK LED and SPEED LED) - HD Audio Jack: Line in / Front Speaker / Microphone
Storage
Connector	- 6 x SATA3 6.0 Gb / s connectors - 1 x IR header - 1 x CIR header - 1 x Print port header - 1 x COM port header - 1 x CPU Fan connector (4-pin) - 1 x Chassis Fan connector (4-pin) - 1 x Power Fan connector (3-pin) - 24 pin ATX power connector - 4 pin 12V power connector - Front panel audio connector - 3 x USB 2.0 headers (support 6 USB 2.0 ports) - 1 x USB 3.1 Gen1 header (supports 2 USB 3.1 Gen1 ports)	- 6 x SATA2 3.0 Gb / s connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug functions - 1 x IR header - 1 x CIR header - 1 x Print port header - 1 x COM port header - 1 x CPU Fan connector (4-pin) - 1 x Chassis Fan connector (4-pin) - 1 x Power Fan connector (3-pin) - 24 pin ATX power connector - 4 pin 12V power connector - Front panel audio connector - 3 x USB 2.0 headers (support 6 USB 2.0 ports)
BIOS	- 64Mb AMI UEFI Legal BIOS with GUI support - Supports "Plug and Play" - ACPI 1.1 Compliance Wake Up Events - Supports jumperfree - SMBIOS 2.3.1 Support - DRAM, VDDP, VDDR, SB Voltage Multi-adjustment	- 64Mb AMI UEFI Legal BIOS with GUI support - Supports "Plug and Play" - ACPI 1.1 Compliance Wake Up Events - Supports jumperfree - SMBIOS 2.3.1 Support - DRAM, VDDP, VDDR, SB Voltage Multi-adjustment
Support CD	- Drivers, Utilities, AntiVirus Software (Trial Version), CyberLink MediaEspresso 6.5 Trial, Google Chrome Browser and Toolbar	- Drivers, Utilities, AntiVirus Software (Trial Version), CyberLink MediaEspresso 6.5 Trial, Google Chrome Browser and Toolbar
Software and UEFI
Hardware Monitor	- CPU Temperature Sensing - Chassis Temperature Sensing - CPU, Chassis, Power Fan Tachometer - CPU, Chassis Quiet Fan - CPU, Chassis Fan multi-speed control - Voltage Monitoring: +12V, +5V, +3.3V, Vcore	- CPU Temperature Sensing - Chassis Temperature Sensing - CPU, Chassis, Power Fan Tachometer - CPU, Chassis Quiet Fan - CPU, Chassis Fan multi-speed control - Voltage Monitoring: +12V, +5V, +3.3V, Vcore
OS	- Microsoft Windows 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bit / Vista™ 32-bit / Vista™ 64-bit	- Microsoft Windows 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bit / Vista™ 32-bit / Vista™ 64-bit
Certifications	- FCC, CE - ErP / EuP Ready (ErP / EuP ready power supply is required)	- FCC, CE - ErP / EuP Ready (ErP / EuP ready power supply is required)
Accessories	- Quick Installation Guide, Support CD, I / O Shield - 2 x SATA Data Cables	- Quick Installation Guide, Support CD, I / O Shield - 2 x SATA Data Cables