GPU comparison

A16 vs RTX 3090

Specifications and current cloud pricing, side by side.

AmperevsAmpereUpdated 33 days ago

The RTX 3090 wins for the most common training and inference use cases because its FP16 dense rating of 71 TFLOPS exceeds the A16 rating of 17.9 TFLOPS by a factor of four while also providing 24 GB of memory instead of 16 GB.

A16 listed from $0.06/GPU/hrRTX 3090 listed from $0.29/GPU/hr

Right now, from live stock

  • Cheapest right now: RTX 3090 at $0.29/hr on LeaderGPU

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  • Most providers in stock: RTX 3090 (2)

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Specifications Compared

SpecA16RTX 3090
TDP250W350W
VRAM16 GB24 GB
CUDA Cores1,28010,496
Memory TypeGDDR6GDDR6X
ArchitectureAmpereAmpere
FP16 (dense)17.9 TFLOPS71 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)35.9 TOPS284 TOPS
InterconnectPCIe 4.0NVLink, PCIe 4.0
Tensor Cores40328
FP32 Performance4.5 TFLOPS35.6 TFLOPS
Memory Bandwidth200 GB/s936 GB/s
FP16 (with sparsity)35.9 TFLOPS142 TFLOPS
INT8 (with sparsity)71.8 TOPS568 TOPS

Performance Analysis

The FP16 dense rating of 17.9 TFLOPS on the A16 versus 71 TFLOPS on the RTX 3090 indicates that the RTX 3090 completes matrix operations more than three times faster in dense mode during both training and inference workloads. The FP16 rating with sparsity of 35.9 TFLOPS on the A16 versus 142 TFLOPS on the RTX 3090 shows the same ratio when sparsity is applied. Memory bandwidth of 200 GB/s on the A16 compared with 936 GB/s on the RTX 3090 limits maximum batch sizes on the A16 to roughly one fifth the size possible on the RTX 3090 before data movement becomes the bottleneck. FP32 performance of 4.5 TFLOPS on the A16 versus 35.6 TFLOPS on the RTX 3090 further widens the gap for precision sensitive scientific kernels.

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.

A16

A16 is not offered on-demand by any provider we track right now. See the A16 rental page for last-seen listed prices and a price alert.

RTX 3090

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
LeaderGPUThe Netherlands8$0.29$2.29Deploy
Vast.aiCzechia, CZ4$0.37$1.48Deploy

2 providers in stock, 9 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts

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When to Choose the A16

The A16 suits deployments where total power draw must stay at or below 250W and where FP16 dense throughput of 17.9 TFLOPS meets the required throughput. Its PCIe form factor and 16 GB GDDR6 configuration fit rack designs that prioritize lower heat output over peak compute density.

When to Choose the RTX 3090

The RTX 3090 suits workloads that require FP16 dense throughput of 71 TFLOPS or memory capacity of 24 GB to accommodate larger models. Its 936 GB/s bandwidth supports larger batch sizes during fine tuning sessions that exceed the limits imposed by 200 GB/s bandwidth.

Use Cases

LLM Training
RTX 3090

The RTX 3090 supplies FP16 dense performance of 71 TFLOPS and 24 GB memory that accommodate larger models than the A16 configuration of 17.9 TFLOPS and 16 GB.

LLM Inference
RTX 3090

The RTX 3090 delivers FP16 dense performance of 71 TFLOPS together with 936 GB/s bandwidth that sustains higher token throughput than the A16 at 17.9 TFLOPS and 200 GB/s.

Fine-tuning
RTX 3090

The RTX 3090 provides 24 GB memory and FP16 dense performance of 71 TFLOPS that allow larger batch sizes than the A16 limits of 16 GB and 17.9 TFLOPS.

Stable Diffusion
RTX 3090

The RTX 3090 supplies FP16 dense performance of 71 TFLOPS and 936 GB/s bandwidth that accelerate image generation steps beyond the A16 capabilities of 17.9 TFLOPS and 200 GB/s.

Scientific Computing
RTX 3090

The RTX 3090 lists FP32 performance of 35.6 TFLOPS that exceeds the A16 rating of 4.5 TFLOPS for double precision workloads.

Frequently Asked Questions

What is the FP16 dense performance of the A16?▾

The A16 lists FP16 dense performance of 17.9 TFLOPS. Its FP16 rating with sparsity reaches 35.9 TFLOPS.

What TDP does the A16 have?▾

The A16 operates at a TDP of 250W. The RTX 3090 operates at a TDP of 350W.

Which GPU has higher INT8 dense performance?▾

The RTX 3090 lists INT8 dense performance of 284 TOPS. The A16 lists INT8 dense performance of 35.9 TOPS.

Do both GPUs support PCIe 4.0?▾

Both the A16 and the RTX 3090 support PCIe 4.0 interconnect. The RTX 3090 also supports NVLink.

What is the FP32 rating of each GPU?▾

The A16 lists FP32 performance of 4.5 TFLOPS. The RTX 3090 lists FP32 performance of 35.6 TFLOPS.

Which is cheaper to rent, the A16 or the RTX 3090?▾

Cloud rental prices for both the A16 and RTX 3090 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 A16 have compared to the RTX 3090?▾

The A16 has 16 GB of GDDR6 memory. The RTX 3090 has 24 GB of GDDR6X memory.

Can I find A16 and RTX 3090 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 A16 and the RTX 3090?▾

The A16 uses the Ampere architecture (2021) while the RTX 3090 uses Ampere (2020). The RTX 3090 delivers 4.0x the dense FP16 throughput (71 vs 17.9 TFLOPS, both without sparsity) and 4.7x the memory bandwidth of the A16.

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 A16 and the RTX 3090. 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.

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