GPU comparison

RTX 3070 vs RTX 5080

Specifications and current cloud pricing, side by side.

AmperevsBlackwellUpdated 33 days ago

The RTX 5080 wins for the most common use case of LLM inference. Its 112.6 TFLOPS FP16 dense performance and 16 GB VRAM exceed the RTX 3070 specifications by wide margins. Higher bandwidth of 960 GB/s further supports efficient operation at scale.

RTX 3070 listed from $0.13/GPU/hrRTX 5080 listed from $0.59/GPU/hr

Specifications Compared

SpecRTX 3070RTX 5080
TDP220W360W
VRAM8 GB16 GB
CUDA Cores5,88810,752
FP4 (dense)Not published900.4 TFLOPS
FP8 (dense)Not published225.1 TFLOPS
Memory TypeGDDR6GDDR7
ArchitectureAmpereBlackwell
FP16 (dense)40.6 TFLOPS112.6 TFLOPS
Form FactorsPCIePCIe
INT8 (dense)162.6 TOPS450.2 TOPS
InterconnectPCIe 4.0PCIe 5.0
Tensor Cores184336
FP32 Performance20.3 TFLOPS56.3 TFLOPS
Memory Bandwidth448 GB/s960 GB/s
FP4 (with sparsity)Not published1,801 TFLOPS
FP8 (with sparsity)Not published450.2 TFLOPS
FP16 (with sparsity)81.3 TFLOPS225.1 TFLOPS
INT8 (with sparsity)325.2 TOPS900.4 TOPS

Performance Analysis

Performance metrics show clear advantages for the RTX 5080 in dense computations. The FP16 dense performance of 112.6 TFLOPS on the RTX 5080 exceeds the 40.6 TFLOPS on the RTX 3070. This delta implies faster training iterations and inference throughput for models using dense FP16 computations. Memory bandwidth of 960 GB/s versus 448 GB/s allows larger batch sizes during processing without memory bottlenecks. FP32 performance follows a similar pattern with 56.3 TFLOPS against 20.3 TFLOPS. When sparsity is applied the FP16 with sparsity reaches 225.1 TFLOPS on the RTX 5080 and 81.3 TFLOPS on the RTX 3070. These ratios indicate substantial gains in sparse tensor operations for the newer GPU. The INT8 dense rating of 450.2 TOPS on the RTX 5080 compared to 162.6 TOPS supports accelerated quantized inference workloads.

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 5080

RTX 5080 is not offered on-demand by any provider we track right now. See the RTX 5080 rental page for last-seen listed prices and a price alert.

Which GPU to watchWatch the price of

Notify me when RTX 3070 drops below a price

One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold.

QuantaCloud

Comparing providers? We broker across all of them.

Stop tab-switching between pricing pages. Tell us what you need, 16+ GPUs reserved or cluster capacity, and we return one quote at partner rates within 24 hours.

No waitlist24hr quote turnaroundInfiniBand fabric

Compare real-time pricing across 25+ providers

When to Choose the RTX 3070

The RTX 3070 suits scenarios with strict power limits where 220W TDP keeps consumption low. Its 8 GB VRAM and 40.6 TFLOPS FP16 dense performance handle smaller models adequately. PCIe 4.0 interconnect matches existing infrastructure without requiring upgrades. These factors favor the RTX 3070 when workloads fit within its 448 GB/s bandwidth and 162.6 TOPS INT8 dense capacity.

When to Choose the RTX 5080

The RTX 5080 fits tasks needing doubled 16 GB VRAM and 960 GB/s bandwidth for larger batches. Its 112.6 TFLOPS FP16 dense and 450.2 TOPS INT8 dense figures accelerate demanding inference and training. PCIe 5.0 support pairs with modern systems while 56.3 TFLOPS FP32 handles complex scientific calculations efficiently.

Use Cases

LLM Training
RTX 5080

The FP16 dense performance reaches 112.6 TFLOPS on the RTX 5080 compared to 40.6 TFLOPS.

LLM Inference
RTX 5080

INT8 dense performance of 450.2 TOPS on the RTX 5080 surpasses 162.6 TOPS while 16 GB VRAM supports larger models.

Fine-tuning
RTX 5080

Memory bandwidth of 960 GB/s on the RTX 5080 enables bigger batch sizes than 448 GB/s.

Stable Diffusion
Either

Scientific Computing
RTX 5080

FP32 performance of 56.3 TFLOPS on the RTX 5080 exceeds 20.3 TFLOPS.

Frequently Asked Questions

How does FP16 dense performance compare?▾

FP16 dense performance measures 40.6 TFLOPS on the RTX 3070 and 112.6 TFLOPS on the RTX 5080. The RTX 5080 delivers higher throughput for dense FP16 workloads.

What are the TDP values for each GPU?▾

The RTX 3070 TDP is 220W and the RTX 5080 TDP is 360W. Power requirements increase with the newer model.

Which GPU has higher memory bandwidth?▾

Memory bandwidth is 448 GB/s on the RTX 3070 and 960 GB/s on the RTX 5080. The RTX 5080 supports greater data movement rates.

Do both GPUs use the same interconnect?▾

The RTX 3070 uses PCIe 4.0 while the RTX 5080 uses PCIe 5.0. Interconnect generation advances with the RTX 5080.

Which is cheaper to rent, the RTX 3070 or the RTX 5080?▾

Cloud rental prices for both the RTX 3070 and RTX 5080 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 5080?▾

The RTX 3070 has 8 GB of GDDR6 memory. The RTX 5080 has 16 GB of GDDR7 memory.

Can I find RTX 3070 and RTX 5080 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 5080?▾

The RTX 3070 uses the Ampere architecture (2020) while the RTX 5080 uses Blackwell (2025). The RTX 5080 delivers 2.8x the dense FP16 throughput (112.6 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 5080. 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.

Next steps