GPU comparison

RTX 3070 vs RTX 3090

Specifications and current cloud pricing, side by side.

AmperevsAmpereUpdated 33 days ago

The RTX 3090 wins for the most common use case of LLM inference because its 24 GB memory capacity and 936 GB/s bandwidth exceed the 8 GB and 448 GB/s figures on the RTX 3070 while its dense FP16 performance of 71 TFLOPS exceeds the 40.6 TFLOPS figure by a factor of 1.75.

RTX 3070 listed from $0.13/GPU/hrRTX 3090 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 (2)

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Specifications Compared

SpecRTX 3070RTX 3090
TDP220W350W
VRAM8 GB24 GB
CUDA Cores5,88810,496
Memory TypeGDDR6GDDR6X
ArchitectureAmpereAmpere
FP16 (dense)40.6 TFLOPS71 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)162.6 TOPS284 TOPS
InterconnectPCIe 4.0NVLink, PCIe 4.0
Tensor Cores184328
FP32 Performance20.3 TFLOPS35.6 TFLOPS
Memory Bandwidth448 GB/s936 GB/s
FP16 (with sparsity)81.3 TFLOPS142 TFLOPS
INT8 (with sparsity)325.2 TOPS568 TOPS

Performance Analysis

The ratio of dense FP16 to FP32 equals 2.0 on the RTX 3070 because its dense FP16 figure reaches 40.6 TFLOPS against its FP32 figure of 20.3 TFLOPS. The same ratio equals 2.0 on the RTX 3090 because its dense FP16 figure reaches 71 TFLOPS against its FP32 figure of 35.6 TFLOPS. Memory bandwidth of 936 GB/s on the RTX 3090 exceeds the 448 GB/s figure on the RTX 3070 by a factor of 2.1 and therefore supports larger batch sizes during training or inference when data movement limits throughput. Dense FP16 performance of 71 TFLOPS on the RTX 3090 exceeds the 40.6 TFLOPS figure on the RTX 3070 by a factor of 1.75 while the corresponding sparse FP16 figures of 142 TFLOPS and 81.3 TFLOPS maintain the same ratio.

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 3070

RTX 3070 is not offered on-demand by any provider we track right now. See the RTX 3070 rental page for last-seen listed prices and a price alert.

RTX 3090

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Vast.aiFinland, FI4$0.27$1.07Deploy
LeaderGPUThe Netherlands8$0.29$2.29Deploy

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

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When to Choose the RTX 3070

The RTX 3070 suits workloads that remain within 8 GB of memory and that prioritize lower power draw of 220W over peak throughput. Its dense INT8 performance of 162.6 TOPS and sparse INT8 performance of 325.2 TOPS deliver adequate capacity for inference tasks where the 24 GB capacity of the RTX 3090 remains unnecessary.

When to Choose the RTX 3090

Its dense FP16 performance of 71 TFLOPS and sparse FP16 performance of 142 TFLOPS provide higher throughput than the corresponding 40.6 TFLOPS and 81.3 TFLOPS figures on the RTX 3070 for training and inference jobs that fit the larger memory footprint.

Use Cases

LLM Training
RTX 3090

The RTX 3090 supplies 24 GB memory and dense FP16 performance of 71 TFLOPS which exceed the 8 GB and 40.6 TFLOPS figures on the RTX 3070.

LLM Inference
RTX 3090

The RTX 3090 supplies 936 GB/s bandwidth and 24 GB memory which exceed the 448 GB/s and 8 GB figures on the RTX 3070 for larger batch sizes.

Fine-tuning
RTX 3090

The RTX 3090 supplies dense FP16 performance of 71 TFLOPS and 24 GB memory which exceed the 40.6 TFLOPS and 8 GB figures on the RTX 3070.

Stable Diffusion
RTX 3090

The RTX 3090 supplies 24 GB memory which exceeds the 8 GB figure on the RTX 3070 for models that require larger VRAM capacity.

Scientific Computing
Either

The RTX 3070 supplies dense FP32 performance of 20.3 TFLOPS at 220W TDP while the RTX 3090 supplies 35.6 TFLOPS at 350W TDP so selection depends on power and memory needs.

Frequently Asked Questions

What memory configurations distinguish the RTX 3070 from the RTX 3090?▾

The RTX 3070 contains 8 GB GDDR6 memory with 448 GB/s bandwidth. The RTX 3090 contains 24 GB GDDR6X memory with 936 GB/s bandwidth.

How do the dense FP16 figures compare between these two GPUs?▾

The RTX 3070 reaches 40.6 TFLOPS in dense FP16. The RTX 3090 reaches 71 TFLOPS in dense FP16 which produces a ratio of 1.75 times higher performance.

What TDP values apply to the RTX 3070 and RTX 3090?▾

The RTX 3070 lists a TDP of 220W. The RTX 3090 lists a TDP of 350W.

Which GPU offers higher sparse FP16 performance?▾

The RTX 3090 reaches 142 TFLOPS with sparsity in FP16. The RTX 3070 reaches 81.3 TFLOPS with sparsity in FP16.

Do both GPUs support the same interconnect options?▾

The RTX 3070 supports PCIe 4.0. The RTX 3090 supports NVLink in addition to PCIe 4.0.

How do the dense INT8 figures compare?▾

The RTX 3070 reaches 162.6 TOPS in dense INT8. The RTX 3090 reaches 284 TOPS in dense INT8.

Which is cheaper to rent, the RTX 3070 or the RTX 3090?▾

Cloud rental prices for both the RTX 3070 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 RTX 3070 have compared to the RTX 3090?▾

The RTX 3070 has 8 GB of GDDR6 memory. The RTX 3090 has 24 GB of GDDR6X memory.

Can I find RTX 3070 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 RTX 3070 and the RTX 3090?▾

The RTX 3070 uses the Ampere architecture (2020) while the RTX 3090 uses Ampere (2020). The RTX 3090 delivers 1.7x the dense FP16 throughput (71 vs 40.6 TFLOPS, both without sparsity) and 2.1x the memory bandwidth of the RTX 3070.

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 3070 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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