ASRock > Motherboard Compare Result

Model	Fatal1ty AB350 Gaming K4	Fatal1ty X370 Gaming K4

Form Factor	- ATX Form Factor: 12.0-in x 8.8-in, 30.5 cm x 22.4 cm - Solid Capacitor design	- ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
Unique Feature	ASRock Super Alloy - Premium Power Choke - Matte Black PCB - High Density Glass Fabric PCB - 2oz Copper PCB ASRock Steel Slots ASRock Ultra M.2 (PCIe Gen3 x4) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update & APP Shop	ASRock USB 3.1 Gen2 - ASRock USB 3.1 Gen2 Type-A Port (10 Gb / s) - ASRock USB 3.1 Gen2 Type-C Port (10 Gb / s) ASRock Super Alloy - XXL Aluminum Alloy Heatsink - Premium 45A Power Choke - Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors) - I / O Armor - Matte Black PCB - High Density Glass Fabric PCB - 2oz Copper PCB ASRock Steel Slots ASRock Ultra M.2 (PCIe Gen3 x4 & SATA3) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update & APP Shop
CPU	- Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) - Digi Power design - 9 Power Phase design	- Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) - IR Digital PWM - 12 Power Phase design
Chipset	- AMD Promontory B350	- AMD Promontory X370
Memory	- Dual Channel DDR4 Memory Technology - 4 x DDR4 DIMM Slots - AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* - AMD 7th Gen A-Series APUs support DDR4 2400 / 2133 non-ECC, un-buffered memory* - Max. capacity of system memory: 64GB** - 15μ Gold Contact in DIMM Slots For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs. Please refer to below table for DDR4 UDIMM maximum frequency support. A-Series APUs: Ryzen Series CPUs (Matisse): Ryzen Series CPUs (Pinnacle Ridge): Ryzen Series CPUs (Picasso): Ryzen Series CPUs (Summit Ridge): Ryzen Series CPUs (Raven Ridge): SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label *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 DDR4 Memory Technology - 4 x DDR4 DIMM Slots - AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 2933+(OC) / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Summit Ridge) support DDR4 2933+(OC)2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Raven Ridge) support DDR4 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* - AMD 7th Gen A-Series APUs support DDR4 2400 / 2133 ECC & non-ECC, un-buffered memory* - Max. capacity of system memory: 64GB** - 15μ Gold Contact in DIMM Slots For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs. Please refer to below table for DDR4 UDIMM maximum frequency support. A-Series APUs: Ryzen Series CPUs (Matisse): Ryzen Series CPUs (Pinnacle Ridge): Ryzen Series CPUs (Picasso): Ryzen Series CPUs (Summit Ridge): Ryzen Series CPUs (Raven Ridge): SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label *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	AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge) - 2 x PCI Express 3.0 x16 Slots (single at x16 (PCIE2); dual at x16 (PCIE2) / x4 (PCIE4))* AMD 7th A-Series APUs - 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x2 (PCIE4))* AMD Ryzen series CPUs (Picasso, Raven Ridge) - 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x4 (PCIE4))* AMD Athlon series CPUs - 2 x PCI Express 3.0 x16 Slots (single at x4 (PCIE2); dual at x4 (PCIE2) / x2 (PCIE4))* - 4 x PCI Express 2.0 x1 Slots - Supports AMD Quad CrossFireX™ and CrossFireX™** Supports NVMe SSD as boot disks If M2_1 is occupied, PCIE4 will be disabled. *This feature is only supported with Ryzen Series CPUs (Matisse, Summit Ridge, Pinnacle Ridge, Picasso and Raven Ridge).	AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge) - 2 x PCI Express 3.0 x16 Slots (single at x16 (PCIE2); dual at x8 (PCIE2) / x8 (PCIE4))* AMD 7th A-Series APUs - 1 x PCI Express 3.0 x16 Slot (single at x8 (PCIE2))* AMD Ryzen series CPUs (Picasso, Raven Ridge) - 1 x PCI Express 3.0 x16 Slot (single at x8 (PCIE2))* AMD Athlon series CPUs - 1 x PCI Express 3.0 x16 Slot (single at x4 (PCIE2))* - 4 x PCI Express 2.0 x1 Slots - Supports AMD Quad CrossFireX™ and CrossFireX™ - Supports NVIDIA Quad SLI™ and SLI™ - 1 x M.2 Socket (Key E), supports type 2230 WiFi / BT PCIe WiFi module - 15μ Gold Contact in VGA PCIe Slot (PCIE2) Supports NVMe SSD as boot disks *This feature is only supported with Ryzen Series CPUs (Matisse, Summit Ridge and Pinnacle Ridge).
Graphics	- Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU* - Integrated AMD Radeon™ R-Series Graphics in A-series APU* - DirectX 12, Pixel Shader 5.0 - Shared memory default 2GB. Max Shared memory supports up to 16GB.** - Three graphics output options: D-Sub, DVI-D and HDMI - Supports Triple Monitor - Supports HDMI 1.4 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz - Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz - Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz - Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant HDMI monitor is required) - Supports HDCP 1.4 with DVI-D and HDMI 1.4 Ports - Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI 1.4 Ports Actual support may vary by CPU *The Max shared memory 16GB requires 32GB system memory installed.	- Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU* - Integrated AMD Radeon™ R-Series Graphics in A-series APU* - DirectX 12, Pixel Shader 5.0 - Shared memory default 2GB. Max Shared memory supports up to 16GB.** - Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz - Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required) - Supports HDCP 1.4 with HDMI Port - Supports Full HD 1080p Blu-ray (BD) playback with HDMI Port Actual support may vary by CPU *The Max shared memory 16GB requires 32GB system memory installed.
Audio	- 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec) - Premium Blu-ray Audio support - Supports Surge Protection - ELNA Audio Caps - PCB Isolate Shielding - Individual PCB Layers for R / L Audio Channel - Supports Creative Sound Blaster™ Cinema 3	- 7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec) - Premium Blu-ray Audio support - Supports Surge Protection - Nichicon Fine Gold Series Audio Caps - 120dB SNR DAC with Differential Amplifier - TI NE5532 Premium Headset Amplifier for Front Panel Audio Connector (Supports up to 600 Ohm headsets) - Pure Power-In - Direct Drive Technology - PCB Isolate Shielding - Impedance Sensing on Rear Out port - Individual PCB Layers for R / L Audio Channel - Gold Audio Jacks - Supports Creative Sound Blaster™ Cinema 3
Lan	- PCIE x1 Gigabit LAN 10 / 100 / 1000 Mb / s - Realtek RTL8111GR - Supports Wake-On-LAN - Supports Lightning / ESD Protection - Supports LAN Cable Detection - Supports Energy Efficient Ethernet 802.3az - Supports PXE	- Gigabit LAN 10 / 100 / 1000 Mb / s - GigaLAN Intel I211AT - Supports Wake-On-LAN - Supports Lightning / ESD Protection - Supports Energy Efficient Ethernet 802.3az - Supports PXE
WiFi	- n/a	- n/a
Rear Panel I/O	- 1 x PS / 2 Mouse / Keyboard Port - 1 x D-Sub Port - 1 x DVI-D Port - 1 x HDMI Port - 2 x USB 2.0 Ports (Supports ESD Protection)* - 1 x USB 3.1 Gen1 Type-C Port (Supports ESD Protection) - 5 x USB 3.1 Gen1 Ports (Supports ESD Protection) - 1 x RJ-45 LAN Port with LED (ACT / LINK LED and SPEED LED) - HD Audio Jacks: Line in / Front Speaker / Microphone *1 x Fatal1ty Mouse Port (USB 2.0) is included	- 2 x Antenna Ports - 1 x PS / 2 Mouse Port - 1 x PS / 2 Keyboard Port - 1 x HDMI Port - 1 x Optical SPDIF Out Port - 1 x USB 3.1 Gen2 Type-A Port (10 Gb / s) (Supports ESD Protection) - 1 x USB 3.1 Gen2 Type-C Port (10 Gb / s) (Supports ESD Protection) - 6 x USB 3.1 Gen1 Ports (Supports ESD Protection)* - 1 x RJ-45 LAN Port with LED (ACT / LINK LED and SPEED LED) - HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks) *1 x Fatal1ty Mouse Port (USB 3.1 Gen1) is included
Storage	- 4 x SATA3 6.0 Gb / s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug* - 2 x SATA3 6.0 Gb / s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug - 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242 / 2260 / 2280 M.2 PCI Express module up to Gen3 x4 (32 Gb / s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb / s) (with A-Series APU and Athlon series APU)** - 1 x M.2 Socket (M2_2), supports M Key type 2230 / 2242 / 2260 / 2280 / 22110 M.2 SATA3 6.0 Gb / s module M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled. *If M2_1 is occupied, PCIE4 will be disabled. Supports NVMe SSD as boot disks Supports ASRock U.2 Kit	- 6 x SATA3 6.0 Gb / s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug - 1 x Ultra M.2 Socket (M2_1), supports M Key type 2230 / 2242 / 2260 / 2280 M.2 SATA3 6.0 Gb / s module and M.2 PCI Express module up to Gen3 x4 (32 Gb / s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb / s) (with A-Series APU and Athlon series APU)* - 1 x M.2 Socket (M2_2), supports M Key type 2230 / 2242 / 2260 / 2280 M.2 SATA3 6.0 Gb / s module and M.2 PCI Express module up to Gen2 x2 (10 Gb / s)* *Supports ASRock U.2 Kit Supports NVMe SSD as boot disks
Connector	- 1 x COM Port Header - 1 x TPM Header - 1 x Power LED and Speaker Header - 1 x RGB LED Header* - 1 x AMD Fan LED Header* - 1 x CPU Fan Connector (4-pin) - 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)* - 1 x 24 pin ATX Power Connector - 1 x 8 pin 12V Power Connector - 1 x Front Panel Audio Connector - 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection) - 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection) Supports in total up to 12V / 3A, 36W LED Strip The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M. The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. **CHA_FAN2 and CHA_FAN3 can auto detect if 3-pin or 4-pin fan is in use.	- 1 x COM Port Header - 1 x TPM Header - 1 x Power LED and Speaker Header - 1 x AMD Fan LED Header* - 2 x RGB LED Headers* - 1 x CPU Fan Connector (4-pin) - 1 x CPU Optional / Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)* - 2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)** - 1 x Chassis Optional / Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)** - 1 x 24 pin ATX Power Connector (Hi-Density Power Connector) - 1 x 8 pin 12V Power Connector (Hi-Density Power Connector) - 1 x Front Panel Audio Connector - 1 x AMD LED Fan USB Header - 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection) - 2 x USB 3.1 Gen1 Headers (Support 4 USB 3.1 Gen1 ports) (Supports ESD Protection) - 1 x Dr. Debug with LED Supports in total up to 12V / 3A, 36W LED Strip The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M. The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. The CPU Optional / Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power. **The Chassis Optional / Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power. CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.
BIOS	- 128Mb AMI UEFI Legal BIOS with multilingual GUI support - Supports "Plug and Play" - ACPI 5.1 compliance wake up events - Supports jumperfree - SMBIOS 2.3 support - DRAM Voltage multi-adjustment	- 128Mb AMI UEFI Legal BIOS with GUI support - Supports "Plug and Play" - ACPI 5.1 compliance wake up events - Supports jumperfree - SMBIOS 2.3 support - CPU, VCORE_NB, DRAM, VPPM, PCH 1.05V, +1.8V, VDDP, PROM 2.5V, Voltage Multi-adjustment
Support CD	- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar	- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar
Software and UEFI	Software - ASRock F-Stream - ASRock RGB LED - ASRock Key Master - ASRock APP Charger - ASRock XFast LAN UEFI - ASRock Full HD UEFI - ASRock Instant Flash - ASRock Easy RAID Installer *These utilities can be downloaded from ASRock Live Update & APP Shop.	Software - ASRock F-Stream - ASRock RGB LED - ASRock Key Master - ASRock APP Charger - ASRock XFast LAN UEFI - ASRock Full HD UEFI - ASRock Instant Flash - ASRock Easy RAID Installer *These utilities can be downloaded from ASRock Live Update & APP Shop.
Hardware Monitor	- CPU, Chassis temperature sensing - CPU, Chassis Fan Tachometer - CPU, Chassis Quiet Fan - CPU, Chassis Fan multi-speed control - Voltage monitoring: +12V, +5V, +3.3V, Vcore	- Temperature Sensing: CPU, CPU Optional / Water Pump, Chassis, Chassis Optional / Water Pump Fans - Fan Tachometer: CPU, CPU Optional / Water Pump, Chassis, Chassis Optional / Water Pump Fans - Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU Optional / Water Pump, Chassis, Chassis Optional / Water Pump Fans - Fan Multi-Speed Control: CPU, CPU Optional / Water Pump, Chassis, Chassis Optional / Water Pump Fans - Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, VCORE_NB, DRAM, PCH 1.05V, +1.8V, VDDP
OS	- Microsoft Windows 10 64-bit / 11 64-bit* *Bristol Ridge and Summit Ridge do not officially support Windows 11.	- Microsoft Windows 10 64-bit / 11 64-bit* *Bristol Ridge and Summit Ridge do not officially support Windows 11.
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 - 2 x Screws for M.2 Sockets	- Quick Installation Guide, Support CD, I / O Shield - 4 x SATA Data Cables - 1 x ASRock SLI_HB_Bridge_2S Card - 3 x Screws for M.2 Sockets