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GPU Specification Sheet
July 5, 2026
flopper.io/gpu/nvidia-dgx-spark
NVIDIA DGX Spark
Official
Grace Blackwell
Desktop Workstation
2025
4nm
Overview
—
FP32 TFLOPS
128 GB
VRAM
273 GB/s
Memory Bandwidth
240 W
TDP
Performance Metrics
Precision
Peak TFLOPS
Bits
Type
FP16
100.0
16
Standard
Memory Specifications
Capacity
128 GB
Type
—
Bandwidth
273 GB/s
Interface Width
—
Power & Efficiency
TDP
240 W
Est. Max Power
276 W
FP32 Efficiency
—
FP16 Efficiency
0.42 TFLOPS/W
Hardware Details
Vendor:
NVIDIA
Architecture:
Grace Blackwell
Process Node:
4nm
Form Factor:
Desktop Workstation
Launch Year:
2025