NVIDIA DGX Spark vs NVIDIA GeForce RTX 4080
Side-by-side comparison of specifications, performance, and efficiency.
NVIDIA DGX Spark
Architecture
Grace Blackwell
Year
2025
VRAM
128 GB
TDP
240 W
NVIDIA GeForce RTX 4080
Architecture
Ada Lovelace
Year
2022
VRAM
16 GB
TDP
320 W
Specifications
NVIDIA DGX Spark NVIDIA GeForce RTX 4080
Architecture
Grace Blackwell Ada Lovelace
Launch Year
2025 2022
Form Factor
Desktop Workstation PCIe
VRAM
128 GB16 GB
Memory Bandwidth
273 GB/s717 GB/s
TDP
240 W320 W
Process Node
4nm 4nm
| Spec | NVIDIA DGX Spark | NVIDIA GeForce RTX 4080 |
|---|---|---|
| Architecture | Grace Blackwell | Ada Lovelace |
| Launch Year | 2025 | 2022 |
| Form Factor | Desktop Workstation | PCIe |
| VRAM | 128 GB | 16 GB |
| Memory Bandwidth | 273 GB/s | 717 GB/s |
| TDP | 240 W | 320 W |
| Process Node | 4nm | 4nm |
Performance (TFLOPS)
NVIDIA DGX Spark NVIDIA GeForce RTX 4080
FP64
—0.7 TFlops
FP32
—48.7 TFlops
FP16
100.0 TFlops97.5 TFlops
BF16
—97.5 TFlops
FP8
—195.0 TFlops
INT8
—195.0 TFlops
| Precision | NVIDIA DGX Spark | NVIDIA GeForce RTX 4080 |
|---|---|---|
| FP64 | — | 0.7 TFlops |
| FP32 | — | 48.7 TFlops |
| FP16 | 100.0 TFlops | 97.5 TFlops |
| BF16 | — | 97.5 TFlops |
| FP8 | — | 195.0 TFlops |
| INT8 | — | 195.0 TFlops |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
NVIDIA
GeForce RTX 4080
0.15 TFLOPS/W
Get Comparison Updates
New GPUs added weekly. Be the first to see how they compare.