NVIDIA
NVIDIA HGX B300 8-GPU Server (Gigabyte G894-SD3-AAX7, 8U Air-Cooled)
NVIDIA HGX B300 8-GPU Blackwell Ultra server — 2,304 GB HBM3e per node on the Gigabyte G894-SD3-AAX7 (8U air-cooled), with an onboard ConnectX-8 8-port 800G SuperNIC and 3 TB of DDR5-6400.
8-GPU NVIDIA HGX B300 (Blackwell Ultra) server on the Gigabyte G894-SD3-AAX7 — an 8U air-cooled, dual-socket platform. Eight B300 GPUs carry 2,304 GB of HBM3e per node — 288 GB and roughly 8 TB/s per GPU — over a fifth-generation NVLink baseboard at 1.8 TB/s per GPU and 14.4 TB/s all-to-all in-node. Scale-out is built onto the board rather than added as cards: an NVIDIA ConnectX-8 8-port 800G OSFP SuperNIC is included on-board for 6.4 Tb/s per node of InfiniBand or Ethernet, with a ConnectX-7 dual-port 200 Gb/s adapter for front-end and north-south traffic. Host compute is dual Intel Xeon 6767P with 3 TB of DDR5-6400 across 24 of 32 DIMM slots. Air-cooled with 6+6 redundant 3,000 W Titanium power, so it deploys in standard high-density halls without facility water. Configuration and availability confirmed at quote.
Specifications
Platform specification
| GPU architecture | NVIDIA B300 (Blackwell Ultra) |
|---|---|
| GPUs per node | 8× NVIDIA HGX B300 |
| GPU memory | 288 GB HBM3e per GPU · 2,304 GB per node · ~8 TB/s per GPU |
| NVLink fabric | 5th-gen NVLink baseboard with NVSwitch · 1.8 TB/s per GPU · 14.4 TB/s all-to-all per node |
| GPU board power | 8× ~1,100 W B300 (≈8.8 kW GPU baseboard) |
| Form factor | 8U rackmount · unit of sale: 8-GPU node |
| Condition | New |
Fixed by the platform — these figures do not vary between builds.
Configuration — this build · options current as of
| 8U air-cooled (base build)G894-SD3-AAX7 | |
|---|---|
| Platform | Gigabyte G894-SD3-AAX7 · dual-socket · AST2600 BMC at DC-SCM |
| Cooling | Air-cooled |
| CPU | 2× Intel Xeon 6767P · 64 cores each (128 cores / 256 threads per node) · 2.4 GHz · 336 MB cache · 350 W |
| System memory | 3 TB DDR5-6400 RDIMM (24 × 128 GB) · 32 DIMM slots, expandable to 4 TB |
| Storage (boot) | 2× 960 GB PCIe 4.0 M.2 2280 |
| Storage (data) | 2× 3.84 TB PCIe 4.0 U.3 2.5in · 8× 2.5in Gen5 NVMe / SATA bays available |
| Scale-out networking | NVIDIA ConnectX-8 8-port 800G OSFP SuperNIC, on-board · 6.4 Tb/s per node · InfiniBand or Ethernet |
| Additional networking | 1× NVIDIA ConnectX-7 dual-port 200 Gb/s QSFP112 · crypto and secure boot |
| PCIe expansion | 4× FHHL dual-slot PCIe Gen5 x16 |
| Power supplies | 6+6 redundant 3,000 W 80 PLUS Titanium · 12× C19 power cords (US) |
| Build | Factory assembled and tested |
| Ordering reference | 6NG894SD3DR000AAX7 |
This is the configuration confirmed under this part number. Memory, storage, and networking are quoted per configuration — tell us your requirement and we will confirm the exact build and warranty at quote.
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