GPU comparison

RTX 3090 Ti vs RTX A4500

Specifications and current cloud pricing, side by side.

AmperevsAmpereUpdated 33 days ago

This variant comparison is part of the RTX 3090 vs RTX A4000 family comparison.

The RTX 3090 Ti variant wins for the most common use case of large model training because its 24 GB memory, 936 GB per second bandwidth and 35.6 TFLOPS dense FP16 exceed the corresponding figures on the RTX A4500 variant by clear margins.

RTX 3090 Ti from $0.29/GPU/hrRTX A4500 from $0.15/GPU/hr

Right now, from live stock

  • Cheapest right now: RTX A4500 at $0.15/hr on Hyperstack

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  • Most providers in stock: RTX 3090 Ti and RTX A4500 (2 each)

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Specifications Compared

SpecRTX 3090 TiRTX A4500
TDP350W140W
VRAM24 GB20 GB
CUDA Cores10,4966,144
Memory TypeGDDR6XGDDR6
ArchitectureAmpereAmpere
Form FactorsPCIePCIe
InterconnectNVLinkNot published
Tensor Cores328192
FP32 Performance35.6 TFLOPS19.2 TFLOPS
Memory Bandwidth936 GB/s448 GB/s
FP16 (vendor figure, sparsity not specified)35.6 TFLOPS19.2 TFLOPS

Performance Analysis

The RTX 3090 Ti variant delivers 35.6 TFLOPS dense FP16 and 35.6 TFLOPS dense FP32 while the RTX A4500 variant delivers 19.2 TFLOPS dense FP16 and 19.2 TFLOPS dense FP32. This difference means the RTX 3090 Ti variant completes dense FP16 matrix operations nearly twice as fast as the RTX A4500 variant during training and inference steps that rely on dense tensor computations. Memory bandwidth of 936 GB per second on the RTX 3090 Ti variant supports larger batch sizes than the 448 GB per second bandwidth on the RTX A4500 variant when loading large activation tensors or model weights. The 350 W TDP of the RTX 3090 Ti variant requires more aggressive cooling than the 140 W TDP of the RTX A4500 variant yet enables sustained operation at the higher dense FP16 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.

RTX 3090 Ti

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
LeaderGPUThe Netherlands8$0.29$2.29Deploy
Vast.aiCzechia, CZ2$0.37$0.74Deploy

2 providers in stock, 10 offers (cheapest per provider shown). All RTX 3090 Ti offers, price history and alerts

RTX A4500

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
HyperstackNORWAY-11$0.15—Deploy
Paperspaceny22$0.76$1.52Deploy

2 providers in stock, 11 offers (cheapest per provider shown). All RTX A4500 offers, price history and alerts

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When to Choose the RTX 3090 Ti

The RTX 3090 Ti variant suits workloads that require the full 24 GB GDDR6X capacity and 936 GB per second bandwidth such as training models that exceed 20 GB. Its NVLink interconnect enables multi GPU scaling for distributed training jobs that benefit from the 35.6 TFLOPS dense FP16 rating. The higher TDP of 350 W is acceptable in server environments that prioritize throughput over power efficiency.

When to Choose the RTX A4500

The RTX A4500 variant fits deployments where the 140 W TDP reduces electricity costs and cooling demands while the 20 GB GDDR6 memory remains sufficient. Its PCIe form factor without NVLink still supports single GPU inference or fine tuning tasks that stay under the 19.2 TFLOPS dense FP16 limit. Professional workstation users select this variant when power constraints outweigh the need for additional memory bandwidth.

Use Cases

LLM Training
RTX 3090 Ti

The 24 GB capacity and 35.6 TFLOPS dense FP16 rating accommodate larger models than the 20 GB and 19.2 TFLOPS on the alternative.

LLM Inference
RTX 3090 Ti

Higher memory bandwidth of 936 GB per second sustains larger batch inference compared with 448 GB per second.

Fine-tuning
Either

Both variants handle fine tuning within their memory limits though the RTX 3090 Ti variant finishes epochs faster at 35.6 TFLOPS dense FP16.

Stable Diffusion
RTX 3090 Ti

The 24 GB GDDR6X memory supports higher resolution generation batches than the 20 GB option.

Scientific Computing
RTX A4500

The 140 W TDP allows dense FP32 workloads at lower power draw while still providing 19.2 TFLOPS.

Frequently Asked Questions

What are the dense FP16 ratings?▾

The RTX 3090 Ti variant reaches 35.6 TFLOPS dense FP16 and the RTX A4500 variant reaches 19.2 TFLOPS dense FP16.

Which GPU supports NVLink?▾

Only the RTX 3090 Ti variant lists NVLink interconnect while the RTX A4500 variant does not.

What TDP values apply to these variants?▾

The RTX 3090 Ti variant carries a 350 W TDP and the RTX A4500 variant carries a 140 W TDP.

Do both GPUs use the same architecture?▾

Both variants belong to the Ampere architecture with the RTX 3090 Ti released in 2020 and the RTX A4500 released in 2021.

How does memory bandwidth compare?▾

The RTX 3090 Ti variant provides 936 GB per second while the RTX A4500 variant provides 448 GB per second.

Which is cheaper to rent, the RTX 3090 Ti or the RTX A4500?▾

Cloud rental prices for both the RTX 3090 Ti and RTX A4500 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 RTX 3090 Ti have compared to the RTX A4500?▾

The RTX 3090 Ti has 24 GB of GDDR6X memory. The RTX A4500 has 20 GB of GDDR6 memory.

Can I find RTX 3090 Ti and RTX A4500 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 RTX 3090 Ti and the RTX A4500?▾

The RTX 3090 Ti uses the Ampere architecture (2020) while the RTX A4500 uses Ampere (2021). The RTX 3090 Ti has 24 GB of GDDR6X at 936 GB/s; the RTX A4500 has 20 GB of GDDR6 at 448 GB/s, so the RTX 3090 Ti has 2.1x the memory bandwidth of the RTX A4500.

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 RTX 3090 Ti and the RTX A4500. 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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