RTX 3070 Ti vs RTX 3090 Ti

AmperevsAmpereUpdated 35 days ago

The RTX 3090 Ti emerges as the winner for most machine learning use cases due to its 24 GB VRAM, 936 GB/s bandwidth, and 35.6 TFLOPS performance, which handle demanding training and inference far better than the RTX 3070 Ti's 8 GB and 20.3 TFLOPS limits.

RTX 3090 Ti from $0.20/hr

Specifications Compared

SpecRTX-3070RTX-3090
TDP220W350W
VRAM8 GB24 GB
CUDA Cores5,88810,496
Memory TypeGDDR6GDDR6X
ArchitectureAmpereAmpere
Form FactorsPCIePCIe
InterconnectNVLink
Tensor Cores184328
FP16 Performance20.3 TFLOPS35.6 TFLOPS
FP32 Performance20.3 TFLOPS35.6 TFLOPS
Memory Bandwidth448 GB/s936 GB/s

Performance Analysis

The RTX 3070 Ti delivers 20.3 TFLOPS in FP16 and FP32, enabling efficient training and inference for models fitting within 8 GB VRAM. The RTX 3090 Ti's 35.6 TFLOPS provides 75 percent higher throughput, accelerating deep learning iterations significantly. This compute gap means the RTX 3090 Ti handles complex neural networks faster, reducing overall training times.

Memory bandwidth of 448 GB/s on the RTX 3070 Ti supports moderate batch sizes in inference but bottlenecks large-scale training. The RTX 3090 Ti's 936 GB/s doubles effective data throughput, allowing larger batches and quicker convergence in optimization loops. For inference, higher bandwidth minimizes latency in high-throughput serving.

VRAM capacity defines model scalability: 8 GB limits the RTX 3070 Ti to smaller LLMs or fine-tuning, while 24 GB on the RTX 3090 Ti accommodates full-scale training without offloading.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

RTX 3090 Ti

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA GeForce RTX 3090
24GB VRAM
$0.20/GPU/hr
Available
TensorDock
TensorDock
NVIDIA GeForce RTX 3090
24GB VRAM
$0.21/GPU/hr
Available
Vast.ai
Vast.ai
4×NVIDIA GeForce RTX 3090
24GB VRAM
$0.25/GPU/hr
$1.01/hr total (4×)
Available
Vast.ai
Vast.ai
4×NVIDIA GeForce RTX 3090
24GB VRAM
$0.27/GPU/hr
$1.07/hr total (4×)
Available
LeaderGPU
LeaderGPU
8×NVIDIA GeForce RTX 3090
24GB VRAM
$0.29/GPU/hr
$2.29/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the RTX 3070 Ti

Select the RTX 3070 Ti for cost-sensitive projects like lightweight inference or Stable Diffusion at standard resolutions. Its $0.06 per hour starting price and 220W TDP minimize expenses and power needs across two cloud offers. The 448 GB/s bandwidth and 20.3 TFLOPS suffice for tasks under 8 GB VRAM.

When to Choose the RTX 3090 Ti

Opt for the RTX 3090 Ti in memory-heavy workflows such as large LLM training or high-resolution generative AI. The 24 GB VRAM and 936 GB/s bandwidth enable bigger batches, with 35.6 TFLOPS boosting speed. NVLink supports scaling, and five cloud offers average $0.25 per hour.

Use Cases

LLM Training
RTX 3090 Ti

24 GB VRAM fits large language models without splitting. 35.6 TFLOPS and 936 GB/s bandwidth speed up training batches.

LLM Inference
RTX 3090 Ti

Higher 24 GB capacity supports multiple concurrent requests. 936 GB/s bandwidth reduces latency for high-throughput serving.

Fine-tuning
Either

RTX 3070 Ti's 8 GB handles small adapters at 20.3 TFLOPS. RTX 3090 Ti excels for full fine-tuning with 24 GB.

Stable Diffusion
RTX 3070 Ti

8 GB VRAM suffices for standard generations. Lower $0.06 per hour cost fits frequent iterative workflows.

Scientific Computing
RTX 3090 Ti

35.6 TFLOPS FP32 outperforms 20.3 TFLOPS in simulations. NVLink enables multi-GPU parallelization.

Frequently Asked Questions

What is the VRAM difference between RTX 3070 Ti and RTX 3090 Ti?

The RTX 3070 Ti has 8 GB GDDR6 VRAM. The RTX 3090 Ti provides 24 GB GDDR6X, tripling capacity for larger models.

Which GPU has higher performance in FP32?

RTX 3070 Ti offers 20.3 TFLOPS FP32. RTX 3090 Ti delivers 35.6 TFLOPS, a 75 percent increase for compute tasks.

How do cloud prices compare for these GPUs?

RTX 3070 Ti starts at $0.06 per hour, averaging $0.08 across two offers. RTX 3090 Ti begins at $0.10 per hour, averaging $0.25 over five offers.

What is the memory bandwidth on each?

RTX 3070 Ti achieves 448 GB/s. RTX 3090 Ti reaches 936 GB/s, doubling data transfer for batch processing.

Which has lower power consumption?

RTX 3070 Ti draws 220W TDP. RTX 3090 Ti requires 350W, suiting high-end but power-tolerant setups.

Do they support multi-GPU interconnects?

RTX 3070 Ti uses PCIe only. RTX 3090 Ti includes NVLink for faster GPU-to-GPU communication.

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 1.8x the FP16 throughput and 2.1x the memory bandwidth of the RTX 3070.

RTX 3070 Ti vs RTX 3090 Ti: 24GB GDDR6X vs 8GB GDDR6 | GPUPerHour