GPU comparison

B300 vs RTX 6000 Ada

Specifications and current cloud pricing, side by side.

Blackwell UltravsAda LovelaceUpdated 34 days ago

The B300 is the stronger choice for the most common use case of LLM training. Its FP16 dense rating of 2250 TFLOPS combined with 262 to 288 GB memory and 8000 GB/s bandwidth delivers higher throughput than the RTX 6000 Ada specifications allow.

B300 from $0.50/GPU/hrRTX 6000 Ada from $0.79/GPU/hr

Right now, from live stock

  • Cheapest right now: B300 at $0.50/hr on RunPod

    Deploy
  • Most providers in stock: RTX 6000 Ada (4)

    See all offers
  • Best $ per TFLOPS FP16 dense right now: B300 ($0.0002 per TFLOPS-hour at 2,250 TFLOPS)

    Deploy

Specifications Compared

SpecB300RTX 6000 Ada
TDP1400W300W
VRAM262-288 GB48 GB
CUDA CoresNot published18,176
FP4 (dense)13,500 TFLOPSNot published
FP8 (dense)4,500 TFLOPS728.5 TFLOPS
Memory TypeHBM3eGDDR6
ArchitectureBlackwell UltraAda Lovelace
FP16 (dense)2,250 TFLOPS364 TFLOPS
Form FactorsSXM6PCIe
INT8 (dense)187.5 TOPS728.5 TOPS
InterconnectNVLink, PCIe 6.0, InfiniBandPCIe 4.0
Tensor CoresNot published568
FP32 Performance75 TFLOPS91.1 TFLOPS
FP64 Performance1.25 TFLOPSNot published
Memory Bandwidth8,000 GB/s960 GB/s
FP4 (with sparsity)18,000 TFLOPSNot published
FP8 (with sparsity)9,000 TFLOPS1,457 TFLOPS
FP16 (with sparsity)4,500 TFLOPS728 TFLOPS
INT8 (with sparsity)375 TOPS1,457 TOPS

Performance Analysis

The FP16 dense figure of 2250 TFLOPS on the B300 exceeds the 364 TFLOPS dense figure on the RTX 6000 Ada by a factor of six. This gap determines training throughput for large models and inference speed for reduced precision workloads. The FP32 rating of 75 TFLOPS on the B300 falls below the 91.1 TFLOPS rating on the RTX 6000 Ada so single precision scientific codes may favor the latter. Memory bandwidth of 8000 GB/s on the B300 versus 960 GB/s on the RTX 6000 Ada allows substantially larger batch sizes before memory capacity of 262 to 288 GB versus 48 GB becomes the limit.

Current On-Demand Offers

Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.

B300

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
RunPodglobal1$0.50—Deploy

1 provider in stock, 1 offer. All B300 offers, price history and alerts

RTX 6000 Ada

ProviderRegionGPUsPer GPU / hrInstance / hrDeploy
Massed Computeus-central-21$0.79—Deploy
QuantaCloudus-midwest-21$0.79—Deploy
LeaderGPUThe Netherlands8$0.91$7.29Deploy
VERDAFIN-HEL1$1.35—Deploy

4 providers in stock, 7 offers (cheapest per provider shown). All RTX 6000 Ada offers, price history and alerts

Which GPU to watchWatch the price of

Notify me when B300 drops below a price

One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.50/GPU-hr.

QuantaCloud

Comparing B-series options? Get one quote for all of them.

Skip the per-provider sales calls. Reserved and cluster B-series configurations from 16 to 1024+ GPUs with InfiniBand fabric, 3 to 12 month terms. One quote at partner rates, 24h turnaround.

No waitlist24hr quote turnaroundInfiniBand fabric

Compare real-time pricing across 25+ providers

When to Choose the B300

The B300 suits workloads that require the FP16 dense rating of 2250 TFLOPS together with 262 to 288 GB HBM3e memory. Large scale training and inference jobs benefit from the 8000 GB/s bandwidth that supports bigger batches without swapping. The 1400W TDP is acceptable when maximum tensor throughput is the priority.

When to Choose the RTX 6000 Ada

The RTX 6000 Ada suits workloads that need the FP32 rating of 91.1 TFLOPS inside a 300W envelope. Inference or fine tuning on moderate sized models fits within the 48 GB GDDR6 capacity and 960 GB/s bandwidth. Lower power draw favors dense deployments where cooling and electricity budgets are constrained.

Use Cases

LLM Training
B300

The B300 supplies 2250 TFLOPS FP16 dense performance and 262 to 288 GB memory that accommodate large models.

LLM Inference
B300

The B300 FP8 dense rating of 4500 TFLOPS and 8000 GB/s bandwidth support high throughput serving.

Fine-tuning
B300

The B300 2250 TFLOPS FP16 dense figure and high memory capacity allow efficient adaptation of large models.

Stable Diffusion
RTX 6000 Ada

The RTX 6000 Ada 91.1 TFLOPS FP32 rating and 300W TDP fit image generation workloads with modest memory needs.

Scientific Computing
RTX 6000 Ada

The RTX 6000 Ada FP32 rating of 91.1 TFLOPS exceeds the B300 rating of 75 TFLOPS.

Frequently Asked Questions

How does FP16 dense performance compare between the two GPUs?▾

The B300 delivers 2250 TFLOPS FP16 dense while the RTX 6000 Ada delivers 364 TFLOPS FP16 dense. The B300 figure is more than six times higher.

What is the TDP of each GPU?▾

The B300 TDP is 1400W. The RTX 6000 Ada TDP is 300W.

Which GPU offers higher FP32 performance?▾

The RTX 6000 Ada offers 91.1 TFLOPS FP32. The B300 offers 75 TFLOPS FP32.

What memory bandwidth does the B300 provide?▾

The B300 provides 8000 GB/s bandwidth. The RTX 6000 Ada provides 960 GB/s bandwidth.

What interconnect does the B300 support?▾

The B300 supports NVLink, PCIe 6.0, and InfiniBand. The RTX 6000 Ada supports PCIe 4.0.

Which is cheaper to rent, the B300 or the RTX 6000 Ada?▾

Cloud rental prices for both the B300 and RTX 6000 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 B300 have compared to the RTX 6000 Ada?▾

The B300 has 262 to 288 GB of HBM3e memory. The RTX 6000 Ada has 48 GB of GDDR6 memory.

Can I find B300 and RTX 6000 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 B300 and the RTX 6000 Ada?▾

The B300 uses the Blackwell Ultra architecture (2025) while the RTX 6000 Ada uses Ada Lovelace (2022). The B300 delivers 6.2x the dense FP16 throughput (2,250 vs 364 TFLOPS, both without sparsity) and 8.3x the memory bandwidth of the RTX 6000 Ada.

Rent these GPUs

Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.

Related comparisons

How this page is made

  • Specifications come from the NVIDIA, AMD and Intel datasheets for the B300 and the RTX 6000 Ada. Dense and sparse throughput are listed separately.
  • Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
  • The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
  • Read how we collect the data, or report an error on this page.

Next steps