Gigabyte B850 AORUS Stealth AMD AM5 ATX DDR5 Gaming Motherboard
The Gigabyte B850 AORUS Stealth AM5 ATX gaming motherboard supports AMD Ryzen processors with DDR5 memory and PCIe 5.0 connectivity. Featuring a robust VRM design, advanced thermal solutions and high-speed networking, it provides stable performance for modern gaming and creator systems.
Features
General
| SKU | GBT-B85-STL |
Features
| Brand | Gigabyte |
| Model Number | B850 A STEALTH |
| Motherboard Chipset | B850 Chipset (Ryzen AM5) |
| CPU Socket Type | AM5 |
| Memory Type | DDR5 |
| Outputs | HDMI |
| Form Factor | ATX |
| Key Features | AMD AM5 socket support ATX form factor DDR5 memory compatibility PCIe 5.0 support Robust VRM power design Advanced heatsink cooling solution Multiple M.2 NVMe storage slots High-speed networking connectivity Optimised Stealth layout for clean builds |
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Gigabyte X870 AORUS ELITE X3D ICE WIFI7 AMD Ryzen DDR5 WIFI Motherboard - Socket AM5£284.99 £237.49Pre-Order -
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Description
High-Performance AM5 Platform with Stealth Design
The Gigabyte B850 AORUS Stealth AMD AM5 ATX DDR5 Gaming Motherboard is built for users who want reliable performance, modern connectivity and a clean internal appearance. Designed to support AMD Ryzen processors on the AM5 platform, it provides a strong foundation for gaming, streaming and content creation builds.
With DDR5 memory support, the B850 AORUS Stealth enables higher bandwidth and improved efficiency compared to previous memory generations. This allows faster load times, smoother multitasking and improved responsiveness in demanding applications. PCIe 5.0 support ensures compatibility with the latest graphics cards and high-speed storage devices, giving your system room to grow.
A robust VRM design with advanced power delivery ensures stable CPU performance under sustained load. Large heatsinks and carefully positioned thermal solutions help manage temperatures across critical components, maintaining reliability during long gaming sessions or heavy workloads.
The Stealth layout focuses on a cleaner build aesthetic by optimising connector placement and reducing visible cabling where possible. This results in a tidy interior presentation, especially when paired with cases that highlight cable management and airflow. The ATX form factor provides ample expansion options, including multiple M.2 slots for NVMe storage and PCIe slots for graphics and additional cards.
High-speed networking and modern rear I/O connectivity ensure fast data transfer and stable online gaming performance. Integrated audio solutions deliver clear sound for immersive gameplay and media use, while BIOS features allow users to fine-tune performance and memory settings.
Built with durable components and reinforced slots, the Gigabyte B850 AORUS Stealth is designed for long-term stability. Whether you are building a high-refresh-rate gaming PC or a productivity-focused workstation, this motherboard provides the performance headroom and connectivity needed for today’s AMD Ryzen systems.
Specification
CPU
AMD Socket AM5, support for:
AMD Ryzen™ 9000 Series Processors/
AMD Ryzen™ 8000 Series Processors/
AMD Ryzen™ 7000 Series Processors
(Go to GIGABYTE's website for the latest CPU support list.)
Chipset
AMD B850
Memory
Support for DDR5 8200(O.C) / 8000(O.C) / 7950(O.C) / 7900(O.C) / 7800(O.C) / 7600(O.C.) / 7400(O.C.) / 7200(O.C.) / 7000(O.C.) / 6800(O.C.) / 6600(O.C.) / 6400(O.C) / 6200(O.C) / 6000(O.C) / 5800(O.C) / 5600(O.C) / 5200 / 4800 / 4400 MT/s memory modules.
4 x DDR5 DIMM sockets supporting up to 256 GB (64 GB single DIMM capacity) of system memory
Dual channel memory architecture
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for AMD EXtended Profiles for Overclocking (AMD EXPO™) and Extreme Memory Profile (XMP) memory modules
(The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE's website for more information.)
Onboard Graphics
Integrated Graphics Processor with AMD Radeon™ Graphics support:
- 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* Support for HDMI 2.1 version, HDCP 2.3, and HDR.
** Support for native HDMI 2.1 TMDS compatible ports.
(Graphics specifications may vary depending on CPU support.)
Audio
Realtek® ALC1220 CODEC
* The back panel line out jack supports DSD audio.
High Definition Audio
2/4/5.1/7.1-channel
* You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings.
Support for S/PDIF Out
LAN
Realtek® 5GbE LAN chip (5 Gbps/2.5 Gbps/1 Gbps/100 Mbps)
Wireless Communication module
Realtek® Wi-Fi 7 RTL8922AE
- WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands
- BLUETOOTH 5.4
- Support for 11be 160MHz wireless standard
(Actual data rate may vary depending on environment and equipment.)
* Wi-Fi 7 features require Windows 11 SV3 to function properly. (There is no support driver for Windows 10.)
** Wi-Fi 7 channels on 6 GHz band availability depends on individual country's regulations.
*** Bluetooth version may change with updates. See the Wi-Fi chip vendor's website for details.
Expansion Slots
1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
AMD Ryzen™ 9000/7000 Series Processors support PCIe 5.0 x16 mode
AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x8 mode
AMD Ryzen™ 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4 mode
* The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot.
Chipset:
- 1 x PCI Express x16 slot, supporting PCIe 4.0 and running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the M2D_SB connector. The PCIEX4 slot becomes unavailable when a device is installed in the M2D_SB connector.
Storage Interface
1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 25110/22110/2580/2280 SSDs:
AMD Ryzen™ 9000/7000 Series Processors support PCIe 5.0 x4/x2 SSDs
AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs
AMD Ryzen™ 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4/x2 SSDs
1 x M.2 connector (M2B_CPU), integrated in the CPU, supporting Socket 3, M key, type 22110/2280 SSDs:
AMD Ryzen™ 9000/7000 Series Processors support PCIe 5.0 x4/x2 SSDs
AMD Ryzen™ 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs
* The M2B_CPU connector becomes unavailable when an AMD Ryzen™ 8000 SeriesPhoenix 2 processor is used.
2 x M.2 connectors (M2C_SB, M2D_SB), integrated in the Chipset, supporting Socket 3, M key, type 22110/2280 PCIe 4.0 x4/x2 SSDs
2 x SATA 6Gb/s connectors
RAID 0, RAID 1, RAID 5, and RAID 10 support for NVMe SSD storage devices
* RAID 5 is only available on AMD Ryzen™ 9000 Series Processors.
RAID 0 and RAID 1 support for SATA storage devices
USB
CPU:
- 1 x USB Type-C® port on the back panel, with USB 3.2 Gen 2 support
CPU+USB 3.2 Gen 1 Hub:
- 4 x USB 3.2 Gen 1 ports on the back panel
CPU+USB 2.0 Hub:
- 4 x USB 2.0/1.1 ports on the back panel
Chipset:
- 1 x USB Type-C® port with USB 3.2 Gen 2x2 support, available through the internal USB header
- 2 x USB 3.2 Gen 2 Type-A ports (red) on the back panel
- 2 x USB 3.2 Gen 1 ports available through the internal USB header
- 4 x USB 2.0/1.1 ports available through the internal USB headers
Internal I/O Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x 4-pin ATX 12V power connector
1 x CPU fan header
1 x CPU fan/water cooling pump header
4 x system fan headers
2 x system fan/water cooling pump headers
3 x addressable RGB Gen2 LED strip headers
1 x RGB LED strip header
4 x M.2 Socket 3 connectors
2 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x USB Type-C® header, with USB 3.2 Gen 2x2 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
1 x noise detection header
1 x Trusted Platform Module header (For the GC-TPM2.0 SPI V2 module only)
1 x Q-Flash Plus button
1 x power button
1 x reset button
1 x reset jumper
2 x temperature sensor headers
1 x Clear CMOS jumper
Back Panel Connectors
1 x HDMI port (Note)
2 x antenna connectors (2T2R)
1 x USB Type-C® header, with USB 3.2 Gen 2 support
2 x USB 3.2 Gen 2 Type-A ports (red)
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
1 x optical S/PDIF Out connector
2 x audio jacks
(Note) Actual support may vary by CPU.
I/O Controller
iTE® I/O Controller Chip
H/W Monitoring
Voltage detection
Temperature detection
Fan speed detection
Water cooling flow rate detection
Fan fail warning
Fan speed control
* Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS
1 x 512 Mbit flash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features
Support for GIGABYTE Control Center (GCC)
* Available applications in GCC may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.
Support for Q-Flash
Support for Q-Flash Plus
Support for Smart Backup
Bundled Software
Norton® Internet Security (OEM version)
Operating System
Support for Windows 11 64-bit
Form Factor
ATX Form Factor; 30.5cm x 24.4cm
