GPU comparison

RTX 3090 vs T4

Specifications and current cloud pricing, side by side.

AmperevsTuringUpdated 17 days ago

The RTX 3090 wins for the most common use case of LLM training. Its 24 GB VRAM, 936 GB/s bandwidth, and 35.6 TFLOPS FP32 deliver superior capacity and throughput over the T4 specifications.

RTX 3090 listed from $0.27/GPU/hrT4 listed from $0.27/GPU/hr

Right now, from live stock

  • Cheapest right now: RTX 3090 at $0.27/hr on Vast.ai

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  • Most providers in stock: RTX 3090 (3)

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Specifications Compared

SpecRTX 3090T4
TDP350W70W
VRAM24 GB16 GB
CUDA Cores10,4962,560
Memory TypeGDDR6XGDDR6
ArchitectureAmpereTuring
FP16 (dense)71 TFLOPS65 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)284 TOPS130 TOPS
InterconnectNVLink, PCIe 4.0PCIe 3.0
Tensor Cores328320
FP32 Performance35.6 TFLOPS8.1 TFLOPS
Memory Bandwidth936 GB/s320 GB/s
FP16 (with sparsity)142 TFLOPSNot published
INT8 (with sparsity)568 TOPSNot published

Performance Analysis

The FP16 dense figure of 71 TFLOPS on the RTX 3090 exceeds the 65 TFLOPS dense FP16 on the T4 while FP32 performance shows 35.6 TFLOPS against 8.1 TFLOPS. This ratio indicates the RTX 3090 sustains roughly four times the FP32 throughput of the T4 for mixed precision workloads. Training sessions benefit when dense FP16 operations align with the higher 936 GB/s bandwidth to support larger batch sizes than the 320 GB/s limit allows. Inference tasks compare dense INT8 throughput at 284 TOPS for the RTX 3090 to 130 TOPS for the T4. Sparsity doubles these values to 568 TOPS and remains unavailable for the T4. Memory capacity of 24 GB versus 16 GB further extends the RTX 3090 advantage in holding larger models without swapping. The T4 maintains efficiency through its 70W TDP during sustained dense FP16 inference at 65 TFLOPS. Bandwidth constraints on the T4 reduce effective batch sizes in memory intensive operations compared to the RTX 3090.

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

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Vast.aiFinland, FI8$0.27$2.13Deploy
LeaderGPUThe Netherlands8$0.29$2.29Deploy
RunPodglobal1$0.50—Deploy

3 providers in stock, 16 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts

T4

T4 is not offered on-demand by any provider we track right now. See the T4 rental page for last-seen listed prices and a price alert.

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When to Choose the RTX 3090

The RTX 3090 suits workloads that require 24 GB VRAM and 936 GB/s bandwidth for handling large models. FP32 performance at 35.6 TFLOPS combined with NVLink interconnect supports distributed training sessions where the T4 cannot match capacity or speed.

When to Choose the T4

The T4 fits deployments constrained by 70W TDP and PCIe 3.0 interconnect when dense FP16 at 65 TFLOPS meets inference needs. Its 16 GB VRAM handles moderate batch sizes efficiently without exceeding power limits of the RTX 3090.

Use Cases

LLM Training
RTX 3090

The RTX 3090 supplies 24 GB VRAM and 35.6 TFLOPS FP32 to manage larger models than the T4.

LLM Inference
RTX 3090

Dense INT8 at 284 TOPS and 936 GB/s bandwidth on the RTX 3090 support higher throughput than the T4.

Fine-tuning
RTX 3090

24 GB capacity and NVLink on the RTX 3090 enable efficient updates with larger batches than 16 GB allows.

Stable Diffusion
RTX 3090

The RTX 3090 FP16 dense at 71 TFLOPS and 936 GB/s bandwidth accelerate image generation workloads.

Scientific Computing
RTX 3090

FP32 performance of 35.6 TFLOPS and 24 GB VRAM on the RTX 3090 exceed T4 capabilities for compute heavy simulations.

Frequently Asked Questions

What is the FP32 performance difference between these GPUs?▾

The RTX 3090 delivers 35.6 TFLOPS FP32 and the T4 delivers 8.1 TFLOPS FP32.

Which GPU offers higher memory bandwidth?▾

The RTX 3090 provides 936 GB/s bandwidth compared to 320 GB/s on the T4.

Does the RTX 3090 support sparsity in INT8 operations?▾

The RTX 3090 lists INT8 with sparsity at 568 TOPS and dense at 284 TOPS while the T4 lists only dense at 130 TOPS.

What interconnect options exist for each card?▾

The RTX 3090 includes NVLink and PCIe 4.0 while the T4 uses PCIe 3.0.

How do TDP values compare for power planning?▾

The RTX 3090 has a TDP of 350W and the T4 has a TDP of 70W.

Which is cheaper to rent, the RTX 3090 or the T4?▾

Cloud rental prices for both the RTX 3090 and T4 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 have compared to the T4?▾

The RTX 3090 has 24 GB of GDDR6X memory. The T4 has 16 GB of GDDR6 memory.

Can I find RTX 3090 and T4 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 and the T4?▾

The RTX 3090 uses the Ampere architecture (2020) while the T4 uses Turing (2018). The RTX 3090 delivers 1.1x the dense FP16 throughput (71 vs 65 TFLOPS, both without sparsity) and 2.9x the memory bandwidth of the T4.

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How this page is made

  • Specifications come from the NVIDIA, AMD and Intel datasheets for the RTX 3090 and the T4. 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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