NVIDIA DGX A100 640GB

rack
8× A100
NVSwitch + NVLink
2020
FP64
78
TFLOPS
FP32
156
TFLOPS
Power
6.5
kW Total
Memory
640
GB Total

DGX A100 with 640GB total GPU memory

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FP64
78
TFLOPS
11.9 TFLOPS/kW
FP32
156
TFLOPS
24.0 TFLOPS/kW
TF32
1,248
TFLOPS
192.0 TFLOPS/kW
FP16
2,496
TFLOPS
384.0 TFLOPS/kW

System Details

GPU Configuration

GPU Count: 8 GPUs
Architecture: Ampere
Interconnect: NVSwitch + NVLink

System Specifications

Form Factor: rack
Total Power: 6.5 kW
Total Memory: 640 GB
Memory Bandwidth: 16.3 TB/s

Precision Performance Breakdown

PrecisionSystem PerformancePer GPUEfficiency
78 TFLOPS 9.7 TFLOPS 11.9 TFLOPS/kW
156 TFLOPS 20 TFLOPS 24.0 TFLOPS/kW
1,248 TFLOPS 156 TFLOPS 192.0 TFLOPS/kW
2,496 TFLOPS 312 TFLOPS 384.0 TFLOPS/kW
2,496 TFLOPS 312 TFLOPS 384.0 TFLOPS/kW
4,992 TOPS 624 TOPS 768.0 TFLOPS/kW

Where a vendor states a basis, the figure shown is the dense one, and any figure it publishes is listed separately. Vendors commonly headline the sparse number instead: for NVIDIA's 2:4 structured sparsity that is exactly twice the dense figure, though other vendors' sparse modes do not all follow that ratio.

Powered by NVIDIA A100

This system utilizes 8 × NVIDIA A100 SXM4 80GB GPUs, each delivering exceptional performance for AI and HPC workloads.

Per GPU TDP

400W

Per GPU Memory

80 GB

Process Node

7nm

Architecture

Ampere

Frequently asked questions

How much does the DGX A100 640GB cost?

NVIDIA sells the DGX A100 640GB on quote through OEMs and resellers, and nobody rents a whole one by the hour. Renting its 8 A100 accelerators separately at the cheapest live rate Flopper tracks, $1.07 per GPU-hour across 23 providers, comes to about $8.56 an hour for the equivalent capacity. A100 rental prices →

How much power does the DGX A100 640GB require?

NVIDIA rates the DGX A100 640GB at 6.5 kW, which is the figure to plan power delivery and cooling around; per-GPU draw is listed on the accelerator's own page.

How many GPUs are in the DGX A100 640GB?

8. The DGX A100 640GB carries 8 NVIDIA A100 SXM4 80GB accelerators in a rack form factor, and every throughput figure on this page is the total across them. A100 specifications →

Documentation & Resources

Flopper Spec Sheet

NVIDIA DGX A100 640GB specifications, generated from our database. Printable.

Vendor product page

NVIDIA DGX A100 640GB documentation

View ↗

NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition Datasheet

NVIDIA • 2026-06-01

View Document ↗

NVIDIA DGX Documentation

System guides, deployment resources

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Typical Use Cases

Large Language Model Training
Distributed Deep Learning
Multi-GPU Inference
HPC Simulations
Scientific Computing

The NVIDIA DGX A100 640GB runs 8× A100 GPUs over NVSwitch + NVLink, delivering 2,496 TFLOPS BF16 dense.

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