GPU comparison

A30 vs RTX 4090

Specifications and current cloud pricing, side by side.

AmperevsAda LovelaceUpdated 34 days ago

For the most common use case of LLM inference the RTX 4090 is the stronger choice because its 82.6 TFLOPS FP32 and 660.6 TOPS INT8 dense figures exceed the A30 equivalents while its 1008 GB/s bandwidth supports larger batches than the 933 GB/s of the A30.

A30 listed from $0.35/GPU/hrRTX 4090 listed from $0.89/GPU/hr

Right now, from live stock

  • Cheapest right now: RTX 4090 at $0.89/hr on RunPod

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  • Most providers in stock: RTX 4090 (3)

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Specifications Compared

SpecA30RTX 4090
TDP165W450W
VRAM24 GB24 GB
CUDA Cores3,58416,384
FP8 (dense)Not published330.3 TFLOPS
Memory TypeHBM2GDDR6X
ArchitectureAmpereAda Lovelace
FP16 (dense)165 TFLOPS165.2 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)330 TOPS660.6 TOPS
InterconnectNVLink, PCIe 4.0PCIe 4.0
Tensor Cores224512
FP32 Performance10.3 TFLOPS82.6 TFLOPS
FP64 Performance5.2 TFLOPS1.3 TFLOPS
Memory Bandwidth933 GB/s1,008 GB/s
FP8 (with sparsity)Not published660.6 TFLOPS
FP16 (with sparsity)330 TFLOPS330.4 TFLOPS
INT8 (with sparsity)661 TOPS1,321.2 TOPS

Performance Analysis

The FP16 dense figure reaches 165 TFLOPS on the A30 and 165.2 TFLOPS on the RTX 4090 so training workloads that rely on dense FP16 see nearly identical throughput. The FP32 rating of 10.3 TFLOPS on the A30 compared with 82.6 TFLOPS on the RTX 4090 produces an eightfold gap that favors the RTX 4090 for precision-sensitive scientific kernels. Memory bandwidth of 933 GB/s versus 1008 GB/s allows the RTX 4090 to sustain modestly larger batch sizes during inference. When sparsity is enabled the A30 reaches 330 TFLOPS FP16 with sparsity while the RTX 4090 reaches 330.4 TFLOPS FP16 with sparsity so sparse acceleration remains comparable. INT8 dense performance measures 330 TOPS on the A30 against 660.6 TOPS on the RTX 4090 indicating the RTX 4090 processes twice the integer throughput.

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.

A30

A30 is not offered on-demand by any provider we track right now. See the A30 rental page for last-seen listed prices and a price alert.

RTX 4090

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
RunPodglobal1$0.89—Deploy
Vast.aiHungary, HU1$1.53—Deploy
LeaderGPUThe Netherlands1$1.66—Deploy

3 providers in stock, 8 offers (cheapest per provider shown). All RTX 4090 offers, price history and alerts

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When to Choose the A30

The A30 suits deployments that require NVLink connectivity and a 165 W TDP limit. Its 24 GB HBM2 memory paired with 933 GB/s bandwidth supports multi GPU scaling in constrained power envelopes where the RTX 4090 450 W rating exceeds facility limits.

When to Choose the RTX 4090

The RTX 4090 fits workloads that exploit its 82.6 TFLOPS FP32 rating and 1008 GB/s bandwidth for faster single GPU execution. Its 660.6 TOPS INT8 dense rating accelerates quantized inference beyond the 330 TOPS INT8 dense rating of the A30.

Use Cases

LLM Training
RTX 4090

The RTX 4090 delivers 82.6 TFLOPS FP32 while the A30 is limited to 10.3 TFLOPS FP32.

LLM Inference
RTX 4090

The RTX 4090 provides 660.6 TOPS INT8 dense compared with 330 TOPS INT8 dense on the A30.

Fine-tuning
Either

Both GPUs supply nearly identical FP16 dense performance at 165 TFLOPS and 165.2 TFLOPS.

Stable Diffusion
RTX 4090

The RTX 4090 supplies 330.3 TFLOPS FP8 dense which the A30 does not publish.

Scientific Computing
RTX 4090

The RTX 4090 achieves 82.6 TFLOPS FP32 against 10.3 TFLOPS FP32 on the A30.

Frequently Asked Questions

How does FP32 performance differ between the A30 and RTX 4090?▾

The A30 reaches 10.3 TFLOPS FP32 while the RTX 4090 reaches 82.6 TFLOPS FP32. This eightfold difference determines suitability for precision heavy workloads.

What memory bandwidth do the A30 and RTX 4090 provide?▾

The A30 supplies 933 GB/s while the RTX 4090 supplies 1008 GB/s. The higher figure on the RTX 4090 permits larger batch sizes during inference.

Which GPU offers NVLink support?▾

The A30 includes NVLink interconnect while the RTX 4090 is restricted to PCIe 4.0. Multi GPU scaling therefore favors the A30 in cluster environments.

How do the INT8 dense ratings compare?▾

The A30 lists 330 TOPS INT8 dense and the RTX 4090 lists 660.6 TOPS INT8 dense. The RTX 4090 therefore handles twice the integer operations per second.

What TDP values apply to each card?▾

The A30 operates at 165 W TDP while the RTX 4090 operates at 450 W TDP. Power constrained installations must account for this difference.

Do both GPUs support the same FP16 dense throughput?▾

The A30 achieves 165 TFLOPS FP16 dense and the RTX 4090 achieves 165.2 TFLOPS FP16 dense. Training throughput in dense FP16 mode is therefore equivalent.

Which is cheaper to rent, the A30 or the RTX 4090?▾

Cloud rental prices for both the A30 and RTX 4090 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 A30 have compared to the RTX 4090?▾

The A30 has 24 GB of HBM2 memory. The RTX 4090 has 24 GB of GDDR6X memory.

Can I find A30 and RTX 4090 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 A30 and the RTX 4090?▾

The A30 uses the Ampere architecture (2021) while the RTX 4090 uses Ada Lovelace (2022). Both deliver the same dense FP16 throughput (165.2 TFLOPS without sparsity), and the RTX 4090 has 1.1x the memory bandwidth of the A30.

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 A30 and the RTX 4090. 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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