A100 SXM4 80GB vs Tesla V100 32GB

AmperevsVoltaUpdated 35 days ago

The A100 SXM4 80GB emerges as the superior choice for most contemporary use cases. Its 312 TFLOPS FP16 and 80 GB VRAM outperform the V100's 125 TFLOPS and 32 GB across training and inference, justifying the pricing premium from $0.67 per hour for enhanced throughput and model capacity.

A100 SXM4 80GB from $0.73/hrTesla V100 32GB from $0.19/hr

Specifications Compared

SpecA100V100
TDP400W300W
VRAM40-80 GB16-32 GB
CUDA Cores6,9125,120
Memory TypeHBM2eHBM2
ArchitectureAmpereVolta
Form FactorsSXM4, PCIeSXM2, PCIe
InterconnectNVLink, PCIe 4.0, InfiniBandNVLink, PCIe 3.0
Tensor Cores432640
FP16 Performance312 TFLOPS125 TFLOPS
FP32 Performance19.5 TFLOPS15.7 TFLOPS
FP64 Performance9.7 TFLOPS7.8 TFLOPS
INT8 Performance624 TOPS
Memory Bandwidth2,039 GB/s900 GB/s

Performance Analysis

FP16 performance defines a primary gap: the A100's 312 TFLOPS enables over 2.5 times faster mixed-precision training than the V100's 125 TFLOPS, accelerating neural network optimization in frameworks like TensorFlow. FP32 at 19.5 TFLOPS on the A100 slightly exceeds the V100's 15.7 TFLOPS, benefiting simulation tasks requiring single-precision accuracy. These metrics translate to reduced training times for large models, where the A100 processes batches quicker.

Memory bandwidth profoundly impacts workloads: 2039 GB/s on the A100 versus 900 GB/s on the V100 allows larger batch sizes without memory bottlenecks, vital for stable gradient updates in training. The A100's 80 GB VRAM supports models up to billions of parameters intact, while the V100's 32 GB often requires model parallelism. In inference, higher bandwidth minimizes latency for high-throughput serving.

Power efficiency shifts with TDP: the A100's 400W delivers more performance per watt in FP16-heavy tasks compared to the V100's 300W, though denser racks may need cooling adjustments.

Live Cloud Pricing

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

A100 SXM4 80GB

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
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
2×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.00/GPU/hr
$2.00/hr total (2×)
Available
Denvr
Denvr
4×NVIDIA A100 PCIe 80GB
80GB VRAM
$1.15/GPU/hr
$4.60/hr total (4×)
Denvr
Denvr
8×NVIDIA A100 SXM4 80GB
80GB VRAM
$1.15/GPU/hr
$9.20/hr total (8×)

Tesla V100 32GB

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA Tesla V100 16GB
16GB VRAM
$0.19/GPU/hr
Available
TensorDock
TensorDock
NVIDIA Tesla V100 16GB
16GB VRAM
$0.19/GPU/hr
Available
TensorDock
TensorDock
NVIDIA Tesla V100 32GB
32GB VRAM
$0.29/GPU/hr
Available
TensorDock
TensorDock
NVIDIA Tesla V100 32GB
32GB VRAM
$0.29/GPU/hr
Available
Lambda Labs
Lambda Labs
8×NVIDIA Tesla V100 16GB
16GB VRAM
$0.79/GPU/hr
$6.32/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the A100 SXM4 80GB

Opt for the A100 SXM4 80GB in modern AI pipelines demanding high VRAM and compute. Its 80 GB HBM2e handles large language models during training without sharding, and 312 TFLOPS FP16 speeds convergence. Cloud pricing from $0.67 per hour suits scalable inference at 2039 GB/s bandwidth for production deployments.

When to Choose the Tesla V100 32GB

Select the V100 32GB for budget-conscious or legacy applications. At $0.29 per hour starting price, it runs established Volta-optimized code efficiently with 125 TFLOPS FP16. Lower 300W TDP fits power-limited environments, and 900 GB/s bandwidth suffices for smaller batch inference.

Use Cases

LLM Training
A100 SXM4 80GB

The A100's 80 GB VRAM and 312 TFLOPS FP16 support full large language models without partitioning. Higher 2039 GB/s bandwidth enables larger batches for faster convergence.

LLM Inference
A100 SXM4 80GB

A100 handles high-throughput serving with 80 GB capacity for multiple concurrent requests. Its FP16 performance at 312 TFLOPS reduces latency compared to V100's 125 TFLOPS.

Fine-tuning
A100 SXM4 80GB

A100's 19.5 TFLOPS FP32 and ample VRAM accelerate parameter-efficient fine-tuning on large bases. Bandwidth advantage sustains optimal batch sizes.

Stable Diffusion
A100 SXM4 80GB

A100's high FP16 compute and 80 GB VRAM generate high-resolution images faster. It outperforms V100 in diffusion model sampling at scale.

Scientific Computing
Either

V100 suffices for FP32-dominant simulations at 15.7 TFLOPS with lower cost. A100 excels in memory-intensive HPC with 2039 GB/s bandwidth.

Frequently Asked Questions

Which GPU has more VRAM?

The A100 SXM4 offers 80 GB HBM2e VRAM. The V100 provides 32 GB HBM2. This difference allows the A100 to load larger datasets or models.

What is the FP16 performance difference?

A100 delivers 312 TFLOPS FP16 versus V100's 125 TFLOPS. This results in over 2.5 times faster mixed-precision AI training on A100.

How do cloud prices compare?

A100 SXM4 80GB starts at $0.67 per hour with average $1.41 per hour across 24 offers. V100 32GB begins at $0.29 per hour averaging $1.01 per hour over 46 offers.

Which has higher memory bandwidth?

A100 achieves 2039 GB/s bandwidth. V100 reaches 900 GB/s. Higher bandwidth on A100 supports bigger batches in deep learning.

What are the TDP ratings?

A100 has 400W TDP while V100 uses 300W. A100 provides more performance despite higher power draw.

Which architecture is newer?

A100 uses Ampere from 2020. V100 employs Volta from 2017. Ampere includes advancements like improved tensor cores.

Which is cheaper to rent, the A100 or the V100?

Cloud rental prices for both the A100 and V100 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 V100?

The A100 has 40 to 80 GB of HBM2e memory. The V100 has 16 to 32 GB of HBM2 memory.

Can I find A100 and V100 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 V100?

The A100 uses the Ampere architecture (2020) while the V100 uses Volta (2017). The A100 delivers 2.5x the FP16 throughput and 2.3x the memory bandwidth of the V100.

A100 SXM4 80GB vs Tesla V100 32GB: 80GB vs 32GB | GPUPerHour