Flopper.io GPU Comparison Sheet
September 30, 2026
flopper.io/compare/nvidia-dgx-spark-vs-nvidia-geforce-rtx-4090-24gbNVIDIA DGX Spark vs NVIDIA GeForce RTX 4090 24GB
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| NVIDIA DGX Spark | NVIDIA GeForce RTX 4090 24GB | |
|---|---|---|
| FP32 TFLOPS | — | 82.6 |
| Memory | 128 GB | 24 GB |
| Memory Bandwidth | 273 GB/s | 1.0 TB/s |
| TDP | 140 W | 450 W |
Performance by Precision
| Precision | NVIDIA DGX Spark peak TFLOPS (dense) | NVIDIA GeForce RTX 4090 24GB peak TFLOPS (dense) |
|---|---|---|
| FP64 | — | 1.3 |
| FP32 | — | 82.6 |
| TF32 | — | 82.6 |
| BF16 | — | 165.2 |
| FP16 | — | 165.2 |
| FP8 | — | 330.3 |
| FP6 | — | — |
| FP4 | 500.0 | — |
| INT8 | — | 660.6 |
Specifications
| NVIDIA DGX Spark | NVIDIA GeForce RTX 4090 24GB | |
|---|---|---|
| Architecture | Grace Blackwell | Ada Lovelace |
| Process Node | 4nm | 4nm |
| Launch Year | 2025 | 2022 |
| Form Factor | Desktop Workstation | PCIe |
| Memory Type | — | — |
| Interface Width | — | — |
| Interconnect | — | — |
| TDP | 140 W | 450 W |
| FP32 Efficiency | — | 0.18 TFLOPS/W |