A40 vs RTX 2000 Ada

AmperevsAda LovelaceUpdated 35 days ago

The A40 emerges as the superior choice for most machine learning use cases. Its 48 GB VRAM, 37.4 TFLOPS compute, and 696 GB/s bandwidth handle demanding training and inference far better than the RTX 2000 Ada's 16 GB, 12 TFLOPS, and 288 GB/s, justifying the higher $1.26/hr average price for production workloads.

A40 from $0.08/hrRTX 2000 Ada from $0.24/hr

Specifications Compared

SpecA40RTX-2000-ADA
TDP300W70W
VRAM48 GB16 GB
CUDA Cores10,7522,816
Memory TypeGDDR6GDDR6
ArchitectureAmpereAda Lovelace
Form FactorsPCIePCIe
InterconnectNVLink
Tensor Cores33688
FP16 Performance37.4 TFLOPS12 TFLOPS
FP32 Performance37.4 TFLOPS12 TFLOPS
FP64 Performance0.6 TFLOPS
INT8 Performance299 TOPS192 TOPS
Memory Bandwidth696 GB/s288 GB/s

Performance Analysis

The A40's superior specifications translate to stronger real-world performance in compute-heavy tasks. With 37.4 TFLOPS FP32 and FP16 performance, it achieves over three times the throughput of the RTX 2000 Ada's 12 TFLOPS in both precisions, enabling faster model training and inference cycles. Equal FP16 and FP32 rates on each GPU indicate optimized tensor core utilization for deep learning.

Memory capacity proves decisive: the A40's 48 GB VRAM supports larger batch sizes and complex models that exceed the RTX 2000 Ada's 16 GB limit, reducing the need for model sharding. Bandwidth differences amplify this: 696 GB/s on the A40 versus 288 GB/s on the RTX 2000 Ada allows quicker data transfers, minimizing bottlenecks in training loops with high-resolution inputs or extensive datasets.

Power efficiency favors the RTX 2000 Ada at 70W TDP, yielding better performance per watt for sustained low-intensity workloads. However, the A40's NVLink interconnect enables multi-GPU scaling unavailable on the RTX 2000 Ada, ideal for distributed training.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

A40

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA RTX A4000
16GB VRAM
$0.08/GPU/hr
Available
Vast.ai
Vast.ai
8×NVIDIA RTX A4000
16GB VRAM
$0.15/GPU/hr
$1.17/hr total (8×)
Available
Hyperstack
Hyperstack
4×NVIDIA RTX A4000
16GB VRAM
$0.15/GPU/hr
$0.60/hr total (4×)
Available
Hyperstack
Hyperstack
NVIDIA RTX A4000
16GB VRAM
$0.15/GPU/hr
Available
Hyperstack
Hyperstack
2×NVIDIA RTX A4000
16GB VRAM
$0.15/GPU/hr
$0.30/hr total (2×)
Available

RTX 2000 Ada

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA RTX 2000 Ada Generation
16GB VRAM
$0.24/GPU/hr

Compare real-time pricing across 25+ providers

When to Choose the A40

Opt for the A40 in scenarios demanding high memory and compute capacity. Large-scale LLM training benefits from 48 GB VRAM and 37.4 TFLOPS FP32, accommodating models over 16 GB without splitting. Datacenter environments leverage NVLink for multi-GPU setups and 696 GB/s bandwidth for rapid data movement in scientific simulations.

High-throughput inference on enterprise datasets favors the A40's raw power over the RTX 2000 Ada's constraints.

When to Choose the RTX 2000 Ada

The RTX 2000 Ada excels in budget-conscious deployments with modest requirements. At $0.14/hr starting price and 70W TDP, it suits prototyping, small-batch fine-tuning, or inference on models fitting within 16 GB VRAM. Newer Ada Lovelace architecture provides efficiency gains for tasks like lightweight Stable Diffusion generation.

Edge or development workflows prioritize its low average cost of $0.29/hr across offers.

Use Cases

LLM Training
A40

The A40's 48 GB VRAM supports large language models that exceed the RTX 2000 Ada's 16 GB limit. Its 37.4 TFLOPS FP16 performance accelerates training three times faster.

LLM Inference
A40

High batch sizes benefit from 48 GB VRAM and 696 GB/s bandwidth on the A40. The RTX 2000 Ada's 16 GB suffices only for smaller models.

Fine-tuning
A40

Fine-tuning datasets often require over 16 GB VRAM, which the A40 provides alongside 37.4 TFLOPS for quicker iterations.

Stable Diffusion
RTX 2000 Ada

Stable Diffusion runs efficiently on 16 GB VRAM with the RTX 2000 Ada's lower 70W TDP and $0.14/hr pricing for cost-effective generation.

Scientific Computing
A40

Compute-intensive simulations leverage the A40's 37.4 TFLOPS FP32 and NVLink for multi-GPU scaling beyond the RTX 2000 Ada's capabilities.

Frequently Asked Questions

Which GPU has more VRAM: A40 or RTX 2000 Ada?

The A40 provides 48 GB GDDR6 VRAM, compared to the RTX 2000 Ada's 16 GB GDDR6. This makes the A40 better for memory-intensive tasks like large model training.

What are the FP32 performance differences between A40 and RTX 2000 Ada?

The A40 delivers 37.4 TFLOPS FP32, over three times the RTX 2000 Ada's 12 TFLOPS. This gap impacts training and simulation speeds significantly.

Which is cheaper on gpuperhour.com?

The RTX 2000 Ada starts at $0.14/hr with an average of $0.29/hr across 3 offers, versus the A40's $0.24/hr start and $1.26/hr average across 23 offers.

Does the A40 support NVLink?

Yes, the A40 includes NVLink interconnect for multi-GPU communication. The RTX 2000 Ada lacks this feature.

Which has higher power consumption?

The A40 requires 300W TDP, far exceeding the RTX 2000 Ada's 70W. This affects cooling and cost in dense deployments.

What architectures do these GPUs use?

The A40 uses Ampere from 2020, while the RTX 2000 Ada employs Ada Lovelace from 2024. The newer architecture offers efficiency improvements per watt.

Which is cheaper to rent, the A40 or the RTX 2000 Ada?

Cloud rental prices for both the A40 and RTX 2000 Ada vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.

How much VRAM does the A40 have compared to the RTX 2000 Ada?

The A40 has 48 GB of GDDR6 memory. The RTX 2000 Ada has 16 GB of GDDR6 memory.

Can I find A40 and RTX 2000 Ada GPUs available to rent right now?

Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.

What is the main difference between the A40 and the RTX 2000 Ada?

The A40 uses the Ampere architecture (2020) while the RTX 2000 Ada uses Ada Lovelace (2024). The A40 delivers 3.1x the FP16 throughput and 2.4x the memory bandwidth of the RTX 2000 Ada.

A40 vs RTX 2000 Ada: 3.1x FP16 Gap, 48GB vs 16GB | GPUPerHour