GPU comparison

A40 vs RTX A5000

Specifications and current cloud pricing, side by side.

AmperevsAmpereUpdated 33 days ago

The A40 wins for the most common use case of LLM training because the 48 GB memory capacity and 299.4 TFLOPS FP16 with sparsity exceed the corresponding figures on the RTX A5000.

A40 from $0.52/GPU/hrRTX A5000 from $1.38/GPU/hr

Right now, from live stock

Specifications Compared

SpecA40RTX A5000
TDP300W230W
VRAM48 GB24 GB
CUDA Cores10,7528,192
Memory TypeGDDR6GDDR6
ArchitectureAmpereAmpere
FP16 (dense)149.7 TFLOPSNot published
Form FactorsPCIePCIe
INT8 (dense)299.3 TOPSNot published
InterconnectNVLink, PCIe 4.0NVLink, PCIe 4.0
Tensor Cores336256
FP32 Performance37.4 TFLOPS27.8 TFLOPS
Memory Bandwidth696 GB/s768 GB/s
FP16 (with sparsity)299.4 TFLOPS222.2 TFLOPS
INT8 (with sparsity)598.6 TOPSNot published

Performance Analysis

The A40 records 299.4 TFLOPS FP16 with sparsity against 222.2 TFLOPS FP16 with sparsity on the RTX A5000. The A40 also records 37.4 TFLOPS FP32 against 27.8 TFLOPS FP32 on the RTX A5000. These FP16 with sparsity and FP32 deltas indicate greater throughput for training and inference workloads on the A40 when sparsity is enabled. Memory bandwidth of 696 GB/s on the A40 versus 768 GB/s on the RTX A5000 affects achievable batch sizes in bandwidth constrained scenarios. The 48 GB versus 24 GB memory difference further determines maximum model sizes before swapping occurs.

Current On-Demand Offers

Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.

A40

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
LeaderGPUThe Netherlands8$0.52$4.13Deploy
RunPodglobal1$0.59—Deploy

2 providers in stock, 2 offers. All A40 offers, price history and alerts

RTX A5000

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Paperspaceams11$1.38—Deploy

1 provider in stock, 6 offers (cheapest per provider shown). All RTX A5000 offers, price history and alerts

Which GPU to watchWatch the price of

Notify me when A40 drops below a price

One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.52/GPU-hr.

QuantaCloud

Comparing providers? We broker across all of them.

Stop tab-switching between pricing pages. Tell us what you need, 16+ GPUs reserved or cluster capacity, and we return one quote at partner rates within 24 hours.

No waitlist24hr quote turnaroundInfiniBand fabric

Compare real-time pricing across 25+ providers

When to Choose the A40

The A40 suits workloads that require 48 GB memory capacity and 37.4 TFLOPS FP32 performance. Scientific computing and large scale fine tuning benefit from the 299.4 TFLOPS FP16 with sparsity rating and 598.6 TOPS INT8 with sparsity rating. The 300W TDP remains acceptable when maximum memory and dense INT8 throughput at 299.3 TOPS take priority.

When to Choose the RTX A5000

The RTX A5000 suits deployments that prioritize 230W TDP and 768 GB/s memory bandwidth. Inference tasks with moderate memory needs gain from the higher bandwidth relative to the 696 GB/s on the A40. The 27.8 TFLOPS FP32 rating combined with lower power draw fits power constrained environments.

Use Cases

LLM Training
A40

The A40 supplies 48 GB memory and 299.4 TFLOPS FP16 with sparsity for larger models.

LLM Inference
A40

The A40 supplies 299.4 TFLOPS FP16 with sparsity and 48 GB memory for sustained throughput.

Fine-tuning
A40

The A40 supplies 48 GB memory and 37.4 TFLOPS FP32 for parameter updates.

Stable Diffusion
RTX A5000

The RTX A5000 supplies 768 GB/s bandwidth at 230W TDP for image generation workloads.

Scientific Computing
A40

The A40 supplies 37.4 TFLOPS FP32 and 299.3 TOPS INT8 dense for simulation tasks.

Frequently Asked Questions

What FP32 performance does each GPU deliver?▾

The A40 delivers 37.4 TFLOPS FP32 while the RTX A5000 delivers 27.8 TFLOPS FP32.

What is the FP16 with sparsity rating on the A40?▾

The A40 reaches 299.4 TFLOPS FP16 with sparsity compared to 222.2 TFLOPS FP16 with sparsity on the RTX A5000.

How do the TDP values compare?▾

The A40 lists 300W TDP while the RTX A5000 lists 230W TDP.

Which GPU offers higher memory bandwidth?▾

The RTX A5000 offers 768 GB/s memory bandwidth while the A40 offers 696 GB/s memory bandwidth.

Do both GPUs support the same interconnects?▾

Both the A40 and RTX A5000 support NVLink and PCIe 4.0 interconnects.

Which is cheaper to rent, the A40 or the RTX A5000?▾

Cloud rental prices for both the A40 and RTX A5000 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 A5000?▾

The A40 has 48 GB of GDDR6 memory. The RTX A5000 has 24 GB of GDDR6 memory.

Can I find A40 and RTX A5000 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 A5000?▾

The A40 uses the Ampere architecture (2020) while the RTX A5000 uses Ampere (2021). The A40 has 48 GB of GDDR6 at 696 GB/s; the RTX A5000 has 24 GB of GDDR6 at 768 GB/s, so the RTX A5000 has 1.1x the memory bandwidth of the A40.

Rent these GPUs

Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.

Related comparisons

How this page is made

  • Specifications come from the NVIDIA, AMD and Intel datasheets for the A40 and the RTX A5000. Dense and sparse throughput are listed separately.
  • Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
  • The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
  • Read how we collect the data, or report an error on this page.

Next steps