B200 vs RTX 4080

BlackwellvsAda LovelaceUpdated 36 days ago

The B200 emerges as the superior choice for most AI and machine learning use cases due to its 4500 TFLOPS FP16, 192 GB VRAM, and 8000 GB/s bandwidth, enabling unprecedented scale in training and inference. While the RTX 4080 offers value at $0.11 per hour for smaller workloads, the B200's specs dominate datacenter demands despite higher $1.71 per hour pricing.

B200 from $3.95/hrRTX 4080 from $0.50/hr

Specifications Compared

SpecB200RTX-4080
TDP1000W320W
VRAM192 GB16 GB
CUDA Cores18,4329,728
Memory TypeHBM3eGDDR6X
ArchitectureBlackwellAda Lovelace
Form FactorsSXM, NVLPCIe
InterconnectNVLink, PCIe 6.0, InfiniBand
Tensor Cores576304
FP8 Performance9,000 TFLOPS
FP16 Performance4,500 TFLOPS48.7 TFLOPS
FP32 Performance90 TFLOPS48.7 TFLOPS
FP64 Performance45 TFLOPS
INT8 Performance9,000 TOPS780 TOPS
Memory Bandwidth8,000 GB/s717 GB/s

Performance Analysis

The B200's FP16 performance of 4500 TFLOPS vastly exceeds the RTX 4080's 48.7 TFLOPS, enabling faster AI model training where half-precision computations dominate. FP32 throughput on the B200 reaches 90 TFLOPS against 48.7 TFLOPS on the RTX 4080, supporting precise scientific simulations or graphics rendering. The FP16 to FP32 delta on the B200 favors mixed-precision training pipelines, reducing memory usage while accelerating iterations on massive datasets.

FP8 performance on the B200 hits 9000 TFLOPS, ideal for inference on quantized large language models, a capability absent in the RTX 4080 specs. Memory bandwidth of 8000 GB/s on the B200 allows larger batch sizes in training, fitting models up to 192 GB VRAM without swapping, unlike the RTX 4080's 717 GB/s and 16 GB limit which constrain workloads to smaller batches or models. This disparity means the B200 processes data 11 times faster, minimizing bottlenecks in deep learning pipelines.

Power efficiency differs markedly: the B200's 1000W TDP delivers over 90 times the FP16 throughput per watt compared to the RTX 4080's 320W, though total power draw suits enterprise cooling over desktop use.

Live Cloud Pricing

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

B200

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Nebius
Nebius
NVIDIA B200 SXM
192GB VRAM
$3.95/GPU/hr
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$4.79/GPU/hr
$38.32/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.39/GPU/hr
$43.12/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.69/GPU/hr
$45.52/hr total (8×)
RunPod
RunPod
NVIDIA B200 SXM
192GB VRAM
$5.89/GPU/hr

RTX 4080

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA GeForce RTX 4080 SUPER
16GB VRAM
$0.50/GPU/hr
RunPod
RunPod
NVIDIA GeForce RTX 4080
16GB VRAM
$0.50/GPU/hr

Compare real-time pricing across 25+ providers

When to Choose the B200

Choose the B200 for large-scale LLM training or inference requiring over 16 GB VRAM. Its 192 GB HBM3e handles models like GPT-scale transformers without partitioning, and 8000 GB/s bandwidth supports batch sizes impossible on the RTX 4080. Datacenter interconnects like NVLink enable multi-GPU scaling at $1.71 per hour starting price.

Scientific computing with FP32-heavy simulations benefits from 90 TFLOPS and high memory capacity, outperforming the RTX 4080 in sustained workloads.

When to Choose the RTX 4080

Select the RTX 4080 for cost-sensitive tasks like Stable Diffusion image generation or fine-tuning small models under 16 GB VRAM. At $0.11 per hour average $0.28, it delivers 48.7 TFLOPS FP16 for quick iterations without enterprise overhead.

Gaming, video editing, or lightweight inference suits its 320W PCIe form factor, avoiding the B200's 1000W power and $4.61 average hourly cost.

Use Cases

LLM Training
B200

The B200's 192 GB VRAM and 4500 TFLOPS FP16 support training massive LLMs with large batch sizes. RTX 4080's 16 GB limits it to tiny models.

LLM Inference
B200

9000 TFLOPS FP8 and 8000 GB/s bandwidth on B200 enable high-throughput serving of large models. RTX 4080 struggles with models over 16 GB.

Fine-tuning
B200

B200's 90 TFLOPS FP32 and vast VRAM handle parameter-efficient fine-tuning on billion-parameter models. RTX 4080 suffices only for small-scale.

Stable Diffusion
RTX 4080

RTX 4080's 48.7 TFLOPS FP16 generates images quickly at $0.11 per hour. B200 overkill for 16 GB model needs.

Scientific Computing
B200

B200's 90 TFLOPS FP32 and 192 GB VRAM accelerate simulations with large datasets. RTX 4080's lower specs bottleneck complex computations.

Frequently Asked Questions

Which GPU has more VRAM: B200 or RTX 4080?

The B200 provides 192 GB HBM3e VRAM, compared to 16 GB GDDR6X on the RTX 4080. This enables the B200 to load much larger AI models without offloading.

What is the FP16 performance difference between B200 and RTX 4080?

B200 achieves 4500 TFLOPS in FP16, over 92 times the RTX 4080's 48.7 TFLOPS. This gap accelerates AI training significantly on the B200.

How do cloud prices compare for B200 vs RTX 4080?

B200 starts at $1.71 per hour with $4.61 average across 16 offers. RTX 4080 starts at $0.11 per hour with $0.28 average across 8 offers.

Is B200 better for LLM training than RTX 4080?

Yes, B200's 192 GB VRAM and 8000 GB/s bandwidth support large-batch training of LLMs. RTX 4080's 16 GB VRAM restricts it to small models.

What is the TDP of each GPU?

B200 has a 1000W TDP for datacenter use. RTX 4080 uses 320W, suitable for consumer PCIe setups.

Which has higher memory bandwidth?

B200 offers 8000 GB/s, about 11 times the RTX 4080's 717 GB/s. This benefits data-intensive AI workloads on B200.

Which is cheaper to rent, the B200 or the RTX 4080?

Cloud rental prices for both the B200 and RTX 4080 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 B200 have compared to the RTX 4080?

The B200 has 192 GB of HBM3e memory. The RTX 4080 has 16 GB of GDDR6X memory.

Can I find B200 and RTX 4080 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 B200 and the RTX 4080?

The B200 uses the Blackwell architecture (2024) while the RTX 4080 uses Ada Lovelace (2022). The B200 delivers 92.4x the FP16 throughput and 11.2x the memory bandwidth of the RTX 4080.

B200 vs RTX 4080: 92.4x FP16 Gap, 192GB vs 16GB | GPUPerHour