GB300 vs P100

Blackwell UltravsPascalUpdated 35 days ago

The GB300 emerges as the clear winner for most contemporary use cases, particularly AI training and inference. Its 2250 TFLOPS FP16 and 288 GB VRAM enable workloads infeasible on the P100's 9.3 TFLOPS and 16 GB limits, justifying investment despite higher power and unavailability.

P100 from $0.60/hr

Specifications Compared

SpecGB300P100
TDP1400W250W
VRAM288 GB16 GB
Memory TypeHBM3eHBM2
ArchitectureBlackwell UltraPascal
Form FactorsSXMSXM2, PCIe
InterconnectNVSwitch, NVLinkNVLink
FP8 Performance4,500 TFLOPS
FP16 Performance2,250 TFLOPS9.3 TFLOPS
FP32 Performance90 TFLOPS9.3 TFLOPS
FP64 Performance45 TFLOPS4.7 TFLOPS
INT8 Performance4,500 TOPS
Memory Bandwidth12,000 GB/s732 GB/s

Performance Analysis

Spec differences translate directly to real-world capabilities. The GB300's FP16 performance of 2250 TFLOPS compared to the P100's 9.3 TFLOPS accelerates deep learning training, where mixed-precision computations dominate. The GB300's FP32 at 90 TFLOPS outpaces the P100's 9.3 TFLOPS, benefiting simulation tasks requiring full precision. This delta means training epochs complete orders of magnitude faster on the GB300.

Memory bandwidth profoundly impacts batch sizes: 12000 GB/s on the GB300 supports massive batches for stable gradient updates in large language models, while 732 GB/s on the P100 limits them, increasing per-iteration overhead. VRAM disparity, 288 GB versus 16 GB, prevents the P100 from loading modern models entirely, forcing model parallelism or offloading that slows inference. Power draw at 1400W for the GB300 versus 250W for the P100 reflects density gains but demands robust cooling.

Interconnects enhance scaling: NVSwitch and NVLink on the GB300 enable multi-GPU clusters with minimal latency, surpassing the P100's NVLink.

Live Cloud Pricing

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

P100

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
LeaderGPU
LeaderGPU
2×NVIDIA Tesla P100
16GB VRAM
$0.60/GPU/hr
$1.20/hr total (2×)
Available

Compare real-time pricing across 25+ providers

When to Choose the GB300

The GB300 excels in demanding AI scenarios requiring vast resources. Large-scale LLM training benefits from 288 GB HBM3e VRAM and 12000 GB/s bandwidth, accommodating models with billions of parameters without fragmentation. FP8 at 4500 TFLOPS optimizes inference for production serving at low latency.

When to Choose the P100

The P100 suits budget-conscious prototyping or legacy applications. At $0.07 per hour average pricing, it handles small-scale fine-tuning or inference where 16 GB HBM2 suffices. Lower 250W TDP fits edge or power-sensitive environments, and NVLink supports basic multi-GPU setups without premium infrastructure.

Use Cases

LLM Training
GB300

The GB300's 288 GB VRAM and 12000 GB/s bandwidth handle massive models and large batches. The P100's 16 GB VRAM cannot load such models without excessive sharding.

LLM Inference
GB300

FP8 performance at 4500 TFLOPS on the GB300 delivers high-throughput serving. The P100 lacks FP8 support and sufficient VRAM for production-scale inference.

Fine-tuning
GB300

2250 TFLOPS FP16 on the GB300 speeds iterations on large datasets. P100's 9.3 TFLOPS limits efficiency for models exceeding 16 GB.

Stable Diffusion
GB300

High memory bandwidth of 12000 GB/s supports high-resolution generation batches. P100's 732 GB/s bottlenecks complex diffusion pipelines.

Scientific Computing
Either

Simple simulations fit P100's 9.3 TFLOPS FP32 at low cost. GB300's 90 TFLOPS FP32 scales to HPC clusters needing 288 GB VRAM.

Frequently Asked Questions

What is the VRAM difference between GB300 and P100?

The GB300 offers 288 GB HBM3e VRAM, while the P100 has 16 GB HBM2. This 18-fold increase enables the GB300 to manage much larger models in memory.

How do FP16 performances compare?

GB300 achieves 2250 TFLOPS FP16, compared to P100's 9.3 TFLOPS. The GB300 provides approximately 242 times the half-precision throughput for AI training.

What are the memory bandwidth specs?

GB300 delivers 12000 GB/s, versus P100's 732 GB/s. This gap supports larger batch sizes and faster data movement on the GB300.

Is the P100 still available for cloud rental?

Yes, P100 offers start from $0.07 per hour, averaging $0.25 per hour across three providers. GB300 has no live offers currently.

What are the power requirements?

GB300 TDP is 1400W, demanding high-end cooling. P100 uses 250W, suitable for standard setups.

Which has better interconnects?

GB300 features NVSwitch and NVLink for superior multi-GPU scaling. P100 relies on NVLink alone.

Which is cheaper to rent, the GB300 or the P100?

Cloud rental prices for both the GB300 and P100 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 GB300 have compared to the P100?

The GB300 has 288 GB of HBM3e memory. The P100 has 16 GB of HBM2 memory.

Can I find GB300 and P100 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 GB300 and the P100?

The GB300 uses the Blackwell Ultra architecture (2025) while the P100 uses Pascal (2016). The GB300 delivers 241.9x the FP16 throughput and 16.4x the memory bandwidth of the P100.