Flopper.io System Specification Sheet
August 10, 2026
flopper.io/system/supermicro-sys-821ge-tnhrSupermicro GPU SuperServer SYS-821GE-TNHR
8x H200 Hopper rack 2024
Overview
15.8
FP8 PFLOPS Dense
1.1 TB
Aggregate Memory
38.4 TB/s
Aggregate Bandwidth
—
Aggregate Power
Performance Metrics
| Precision | Peak (PFLOPS) | Per GPU (TFLOPS) | TFLOPS/W |
|---|---|---|---|
| FP64 | 0.3 | 34.0 | 68.00 |
| FP32 | 0.5 | 67.0 | 134.00 |
| TF32 | 4.0 | 494.5 | 989.00 |
| FP16 | 7.9 | 989.5 | 1979.00 |
| BF16 | 7.9 | 989.5 | 1979.00 |
| FP8 | 15.8 | 1979.0 | 3958.00 |
| INT8 | 15.8 | 1979.0 | 3958.00 |
All figures are dense. Vendors commonly headline the sparse number, which is twice the dense one.
Configuration
- Accelerator
- H200 SXM 141GB
- Count
- 8
- Memory per GPU
- 141 GB
- Bandwidth per GPU
- 4.8 TB/s
Power & Efficiency
- Aggregate Power
- —
- TDP per GPU
- 700 W
- FP8 Efficiency
- 3958.00 TFLOPS/W
- Aggregate Bandwidth
- 38.4 TB/s
System Details
Vendor: Supermicro
Family: GPU SuperServer
Architecture: Hopper
Form Factor: rack
Release Year: 2024
Process Node: 4nm
Interconnect
NVSwitch + NVLink
Notes
8U GPU SuperServer built on the NVIDIA HGX H200 baseboard with 4x NVSwitch. Two Intel Xeon Scalable sockets (4th or 5th Gen, up to 64 cores each at 350W, air-cooled), 32 DIMM slots to an 8 TB maximum of DDR5-5600 ECC RDIMM, 19 front hot-swap 2.5-inch NVMe/SATA bays plus two M.2 NVMe boot slots, and 8x PCIe Gen5 x16 low-profile slots with 2x FHHL. Also sold in an HGX H100 configuration. System-level power draw is not published.