A16 vs B300

AmperevsBlackwell UltraUpdated 35 days ago

The B300 emerges as the superior choice for prevalent AI workloads like LLM training and inference. Its 288 GB VRAM, 12000 GB/s bandwidth, and 2250 TFLOPS FP16 outperform the A16's 16 GB, 231 GB/s, and 4.5 TFLOPS by orders of magnitude, justifying the $7.11 per hour cost for high-throughput needs.

A16 from $0.47/hrB300 from $7.39/hr

Specifications Compared

SpecA16B300
TDP250W1200W
VRAM16 GB288 GB
CUDA Cores2,560
Memory TypeGDDR6HBM3e
ArchitectureAmpereBlackwell Ultra
Form FactorsPCIeSXM
InterconnectNVSwitch, NVLink
Tensor Cores80
FP16 Performance4.5 TFLOPS2,250 TFLOPS
FP32 Performance4.5 TFLOPS90 TFLOPS
Memory Bandwidth231 GB/s12,000 GB/s

Performance Analysis

The B300's FP16 throughput reaches 2250 TFLOPS, exceeding the A16's 4.5 TFLOPS by 500 times, which accelerates deep learning training where half-precision dominates. In FP32 tasks, the B300's 90 TFLOPS provides 20 times the A16's 4.5 TFLOPS, benefiting simulations and graphics rendering. The B300 introduces FP8 at 4500 TFLOPS, optimizing inference for quantized models, an area where the A16 lacks equivalent capability. This delta means the B300 handles large-scale training 20 to 500 times faster depending on precision. Memory bandwidth profoundly impacts workloads: the B300's 12000 GB/s supports batch sizes for models exceeding 100 billion parameters, while the A16's 231 GB/s restricts it to smaller datasets under 10 GB. Consequently, the B300 enables efficient handling of massive LLMs without multi-GPU sharding, whereas the A16 suits modest inference runs. Power draw reflects this: 1200W for B300 versus 250W for A16, influencing datacenter cooling.

Live Cloud Pricing

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

A16

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vultr
Vultr
8×NVIDIA A16
64GB VRAM
$0.47/GPU/hr
$3.77/hr total (8×)
Available
Vultr
Vultr
8×NVIDIA A16
64GB VRAM
$0.47/GPU/hr
$3.77/hr total (8×)
Available
Vultr
Vultr
8×NVIDIA A16
64GB VRAM
$0.47/GPU/hr
$3.77/hr total (8×)
Available
Vultr
Vultr
2×NVIDIA A16
64GB VRAM
$0.47/GPU/hr
$0.94/hr total (2×)
Available
Vultr
Vultr
4×NVIDIA A16
64GB VRAM
$0.47/GPU/hr
$1.88/hr total (4×)
Available

B300

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA B300 SXM6
262GB VRAM
$7.39/GPU/hr
VERDA
VERDA
8×NVIDIA B300 SXM6
262GB VRAM
$7.50/GPU/hr
$60.00/hr total (8×)
Available
Scaleway
Scaleway
8×NVIDIA B300 SXM6
262GB VRAM
$8.73/GPU/hr
$69.84/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the A16

The A16 excels in budget-conscious scenarios requiring modest AI inference. With pricing from $0.47 per hour and 16 GB VRAM, it processes lightweight models efficiently via PCIe form factor. Its 250W TDP fits edge deployments or small clusters where 4.5 TFLOPS FP16 suffices for real-time tasks like image classification.

When to Choose the B300

Opt for the B300 in demanding AI training and inference pipelines. The 288 GB HBM3e VRAM accommodates entire large language models, supported by 12000 GB/s bandwidth for huge batches. NVSwitch and NVLink interconnects enable seamless multi-GPU scaling at 2250 TFLOPS FP16.

Use Cases

LLM Training
B300

The B300's 288 GB HBM3e VRAM and 2250 TFLOPS FP16 handle massive models without sharding, unlike the A16's 16 GB limit.

LLM Inference
B300

FP8 performance at 4500 TFLOPS on the B300 optimizes quantized inference for large batches, far beyond A16's 4.5 TFLOPS FP16.

Fine-tuning
B300

B300's 12000 GB/s bandwidth supports efficient fine-tuning of models over 70B parameters; A16 restricts to smaller ones with 231 GB/s.

Stable Diffusion
A16

A16's 16 GB VRAM and 4.5 TFLOPS FP32 suffice for image generation at $0.48 per hour, avoiding B300's overkill 1200W TDP.

Scientific Computing
B300

B300's 90 TFLOPS FP32 outperforms A16's 4.5 TFLOPS for simulations, enhanced by NVLink interconnects.

Frequently Asked Questions

What is the VRAM difference between A16 and B300?

The A16 has 16 GB GDDR6 VRAM, while the B300 provides 288 GB HBM3e. This enables the B300 to load much larger models without splitting across GPUs.

How do cloud prices compare for A16 and B300?

A16 starts at $0.47 per hour with an average of $0.48 across 74 offers. B300 begins at $6.94 per hour averaging $7.11 across 6 offers.

What are the FP16 performance specs?

A16 delivers 4.5 TFLOPS FP16, contrasted by B300's 2250 TFLOPS. The B300 achieves over 500 times higher throughput for training.

Which GPU has higher memory bandwidth?

B300 offers 12000 GB/s, vastly superior to A16's 231 GB/s. This supports larger batch sizes on B300 for AI workloads.

What is the power consumption of each?

A16 requires 250W TDP in PCIe form, while B300 demands 1200W in SXM. B300 suits high-density racks with advanced cooling.

Are interconnects different?

A16 lacks specified interconnects in PCIe setup. B300 uses NVSwitch and NVLink for multi-GPU communication.

Which is cheaper to rent, the A16 or the B300?

Cloud rental prices for both the A16 and B300 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 A16 have compared to the B300?

The A16 has 16 GB of GDDR6 memory. The B300 has 288 GB of HBM3e memory.

Can I find A16 and B300 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 A16 and the B300?

The A16 uses the Ampere architecture (2021) while the B300 uses Blackwell Ultra (2025). The B300 delivers 500.0x the FP16 throughput and 51.9x the memory bandwidth of the A16.