HPE ProLiant Compute XD685 (HGX B200) vs Inventec P9000AG7 (AC)
Both are built on the NVIDIA HGX B200 8-GPU baseboard, so their accelerator performance is identical rather than merely similar. The choice between them is chassis, cooling, expansion and supplier, not FLOPS.
What actually differs
| Specification | HPE ProLiant Compute XD685 (HGX B200) | Inventec P9000AG7 (AC) |
|---|---|---|
| Vendor | HPE | Inventec |
| Part number | S4R96A | P9000AG7 (AC) |
| Form factor | rack | rack |
| Released | 2025 | — |
| Accelerator | 8x B200 | 8x B200 |
| Aggregate memory | 1.4 TB | — |
| Aggregate bandwidth | 64.0 TB/s | — |
| System power | — | — |
| Interconnect | NVLink 5.0 / NVSwitch 4.0 across the HGX B200 baseboard; 4x FHHL PCIe Gen5 x16 slots for fabric, NIC or DPU | One NVIDIA HGX B200 air-cooled baseboard; eight low-profile PCIe Gen5 x16 slots hang off the switch, with one further full-height slot or an OCP 3.0 SFF from the mainboard |
Rows shown in grey are identical between the two.
HPE ProLiant Compute XD685 (HGX B200)
The eight-way XD685 in its NVIDIA HGX B200 configuration, liquid cooled only, in the 5U DLC chassis S4R96A. HPE names B200 support twice in the QuickSpecs, in the supported-accelerator list and in the rule that the H200 and B200 liquid-cooled accelerators must be paired with this chassis, so the configuration is not in doubt. The accelerator kit part number is not recorded: the accelerator table lists two entries both described as HGX B300 with different part numbers, one of which is likely the B200 mislabelled, and guessing which would put an unverified number on a row buyers may quote. Two fifth-generation AMD EPYC processors, 24 DIMM slots and up to 6 TB of DDR5-6400. HPE publishes no system power draw, only twelve 3,000 W supplies, so nothing is summed; compute is NVIDIA's for the baseboard.
Vendor product pageInventec P9000AG7 (AC)
Inventec's air-cooled Blackwell node on AMD hosts, a 10U chassis 448 by 441 by 850 mm carrying one NVIDIA HGX B200 baseboard alongside fifth-generation AMD EPYC processors of up to 400 W. Storage is eight U.2 NVMe bays from the PCIe switch plus four more from the CPU and two M.2, and the switch also provides eight low-profile PCIe Gen5 x16 slots. Cooling is air, with fifteen 80 mm fans on the GPU side and five on the CPU side, and power comes from 3,300 W 54 V supplies in 4+2 redundancy for the accelerators with a separate 2,400 W 12 V plane in 1+1 for the host. Inventec publishes no throughput, memory or system power figure for the node; the baseboard's figures are on the linked HGX B200 entry. The GPU count is not stated on the page either, and is taken from NVIDIA's designation of HGX B200 as an eight-GPU baseboard.
Vendor product page