NVIDIA GB300 Grace Blackwell Ultra Superchip 252GB
Blackwell Ultra Superchip 2025 4nm
FP32
80.0
TFLOPS
VRAM
252 GB
HBM3e
Bandwidth
7.1 TB/s
memory
Performance Metrics
Peak theoretical throughput by precision type
| Precision | Peak TFLOPS | |
|---|---|---|
| FP6 | 5000.0 | |
| FP8 | 5000.0 | |
| FP4 | 10000.0 | |
| FP16 | 2500.0 | |
| BF16 | 2500.0 | |
| TF32 | 1250.0 | |
| FP32 | 80.0 | |
| FP64 | 1.3 |
Power Specifications
TDP
--
Max Power
--
Power Connector
PCIe Slot
Cooling
Air
Memory Specifications
Capacity
252 GB
Type
HBM3e
Bandwidth
7100 GB/s
Interface
--
Hardware & Design
Form Factor
Superchip
Architecture
Blackwell Ultra
Process Node
4nm
Launch Year
2025
Variant
Grace Blackwell Ultra Superchip 252GB
Market Segment
Professional
Full Specifications
| Memory | |
|---|---|
| VRAM | 252 GB |
| Memory Type | HBM3e |
| Bandwidth | 7.1 TB/s |
| Interconnect & I/O | |
| GPU-to-GPU | NVLink-C2C |
| Interconnect Bandwidth | 900 GB/s |
| Power & Thermal | |
| Physical & Media | |
| NVENC Engines | 1 |
| General | |
| Form Factor | Superchip |
| Architecture | Blackwell Ultra |
| Launch Year | 2025 |
Common Use Cases
General Compute AI/ML Workloads Data Processing
The NVIDIA GB300 is optimized for high-performance computing tasks with Blackwell Ultra architecture delivering 80 TFLOPS of compute power.
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