A100 PCIe 80GB vs RTX 5000 Ada Generation

AmperevsAda LovelaceUpdated 35 days ago

The A100 PCIe 80GB wins for primary AI training workloads. Its 312 TFLOPS FP16, 80 GB VRAM, and 2039 GB/s bandwidth deliver superior scale and speed over RTX 5000 Ada's 65.3 TFLOPS and 32 GB, outweighing the price gap for performance-critical needs.

A100 PCIe 80GB from $0.73/hrRTX 5000 Ada Generation from $0.55/hr

Specifications Compared

SpecA100RTX-5000-ADA
TDP400W250W
VRAM40-80 GB32 GB
CUDA Cores6,91212,800
Memory TypeHBM2eGDDR6
ArchitectureAmpereAda Lovelace
Form FactorsSXM4, PCIePCIe
InterconnectNVLink, PCIe 4.0, InfiniBand
Tensor Cores432400
FP16 Performance312 TFLOPS65.3 TFLOPS
FP32 Performance19.5 TFLOPS65.3 TFLOPS
FP64 Performance9.7 TFLOPS
INT8 Performance624 TOPS1,044 TOPS
Memory Bandwidth2,039 GB/s576 GB/s

Performance Analysis

FP16 performance defines training advantages: the A100 reaches 312 TFLOPS, far exceeding the RTX 5000 Ada's 65.3 TFLOPS. This disparity accelerates matrix multiplications in deep learning, enabling faster iterations on large datasets.

FP32 capabilities shift priorities: RTX 5000 Ada matches 65.3 TFLOPS against A100's 19.5 TFLOPS. Such balance aids scientific simulations or rendering where single-precision precision matters without tensor core reliance.

Memory specs dictate practical limits: A100's 2039 GB/s bandwidth and 80 GB VRAM support expansive batch sizes in training, minimizing data transfer bottlenecks. RTX 5000 Ada's 576 GB/s and 32 GB VRAM constrain it to modest scales, though its 250W TDP offers efficiency over A100's 400W.

Live Cloud Pricing

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

A100 PCIe 80GB

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA A100 SXM4 80GB
80GB VRAM
$0.73/GPU/hr
Available
Vast.ai
Vast.ai
2×NVIDIA A100 SXM4 80GB
80GB VRAM
$0.73/GPU/hr
$1.47/hr total (2×)
Available
LeaderGPU
LeaderGPU
8×NVIDIA A100 PCIe 80GB
80GB VRAM
$0.90/GPU/hr
$7.20/hr total (8×)
Available
Vast.ai
Vast.ai
NVIDIA A100 SXM4 80GB
80GB VRAM
$1.07/GPU/hr
Available
Denvr
Denvr
8×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.15/GPU/hr
$9.20/hr total (8×)

RTX 5000 Ada Generation

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA RTX 5000 Ada Generation
32GB VRAM
$0.55/GPU/hr
Available
RunPod
RunPod
NVIDIA RTX 5000 Ada Generation
32GB VRAM
$0.83/GPU/hr

Compare real-time pricing across 25+ providers

When to Choose the A100 PCIe 80GB

Select the A100 PCIe 80GB for large-scale deep learning training. Its 80 GB HBM2e VRAM fits models beyond 32 GB, and 2039 GB/s bandwidth handles massive batches efficiently. NVLink, PCIe 4.0, and InfiniBand interconnects optimize multi-GPU clusters.

Datacenter deployments benefit from its 312 TFLOPS FP16 throughput, ideal for prolonged high-compute sessions despite 400W TDP.

When to Choose the RTX 5000 Ada Generation

Choose the RTX 5000 Ada Generation for cost-sensitive projects. Pricing starts at $0.25 per hour, averaging $0.51 per hour, versus A100's $0.89 per hour minimum.

Its 250W TDP enables denser cloud instances, and 65.3 TFLOPS FP32 suits inference or graphics workloads within 32 GB VRAM limits.

Use Cases

LLM Training
A100 PCIe 80GB

A100's 80 GB HBM2e VRAM and 2039 GB/s bandwidth manage enormous models and batches. RTX 5000 Ada's 32 GB GDDR6 falls short for large-scale training.

LLM Inference
Either

Many inference tasks fit RTX 5000 Ada's 32 GB VRAM at 65.3 TFLOPS FP16. A100's 312 TFLOPS provides faster throughput for high-volume serving.

Fine-tuning
A100 PCIe 80GB

Fine-tuning benefits from A100's 80 GB VRAM for parameter-heavy models. Its high bandwidth reduces latency during iterative updates.

Stable Diffusion
RTX 5000 Ada Generation

RTX 5000 Ada's Ada Lovelace architecture and 65.3 TFLOPS FP32 excel in image generation. Lower 250W TDP and cost suit creative workflows.

Scientific Computing
A100 PCIe 80GB

A100's 312 TFLOPS FP16 accelerates simulations on large datasets. 80 GB VRAM handles complex grids without swapping.

Frequently Asked Questions

Which GPU has more VRAM?

The A100 PCIe 80GB offers 80 GB HBM2e VRAM. The RTX 5000 Ada Generation provides 32 GB GDDR6. This capacity edge makes A100 suitable for larger models.

What are the cloud pricing differences?

A100 PCIe 80GB starts at $0.89 per hour, averaging $2.06 per hour across 29 offers. RTX 5000 Ada begins at $0.25 per hour, averaging $0.51 per hour across 5 offers. RTX delivers better value for lighter tasks.

Which has higher FP16 performance?

A100 achieves 312 TFLOPS in FP16. RTX 5000 Ada reaches 65.3 TFLOPS. A100 dominates training workloads requiring half-precision compute.

How do memory bandwidths compare?

A100 provides 2039 GB/s bandwidth. RTX 5000 Ada offers 576 GB/s. Higher bandwidth on A100 supports bigger batch sizes in memory-intensive jobs.

What are the TDP ratings?

A100 consumes 400W TDP. RTX 5000 Ada uses 250W TDP. Lower power on RTX aids efficiency in multi-GPU or edge setups.

Which architecture is newer?

RTX 5000 Ada uses Ada Lovelace from 2023. A100 employs Ampere from 2020. Newer architecture brings RTX advancements in ray tracing and efficiency.

Which is cheaper to rent, the A100 or the RTX 5000 Ada?

Cloud rental prices for both the A100 and RTX 5000 Ada 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 A100 have compared to the RTX 5000 Ada?

The A100 has 40 to 80 GB of HBM2e memory. The RTX 5000 Ada has 32 GB of GDDR6 memory.

Can I find A100 and RTX 5000 Ada 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 A100 and the RTX 5000 Ada?

The A100 uses the Ampere architecture (2020) while the RTX 5000 Ada uses Ada Lovelace (2023). The A100 delivers 4.8x the FP16 throughput and 3.5x the memory bandwidth of the RTX 5000 Ada.

A100 PCIe 80GB vs RTX 5000 Ada Generation: 80GB vs 32GB | GPUPerHour