Specifications Compared
| Spec | B300 | RTX A5000 |
|---|---|---|
| TDP | 1400W | 230W |
| VRAM | 262-288 GB | 24 GB |
| CUDA Cores | Not published | 8,192 |
| FP4 (dense) | 13,500 TFLOPS | Not published |
| FP8 (dense) | 4,500 TFLOPS | Not published |
| Memory Type | HBM3e | GDDR6 |
| Architecture | Blackwell Ultra | Ampere |
| FP16 (dense) | 2,250 TFLOPS | Not published |
| Form Factors | SXM6 | PCIe |
| INT8 (dense) | 187.5 TOPS | Not published |
| Interconnect | NVLink, PCIe 6.0, InfiniBand | NVLink, PCIe 4.0 |
| Tensor Cores | Not published | 256 |
| FP32 Performance | 75 TFLOPS | 27.8 TFLOPS |
| FP64 Performance | 1.25 TFLOPS | Not published |
| Memory Bandwidth | 8,000 GB/s | 768 GB/s |
| FP4 (with sparsity) | 18,000 TFLOPS | Not published |
| FP8 (with sparsity) | 9,000 TFLOPS | Not published |
| FP16 (with sparsity) | 4,500 TFLOPS | 222.2 TFLOPS |
| INT8 (with sparsity) | 375 TOPS | Not published |
Performance Analysis
The FP16 dense figure of 2250 TFLOPS on the B300 exceeds the FP16 with sparsity figure of 222.2 TFLOPS on the RTX A5000 by a factor derived solely from those listed values. FP32 performance stands at 75 TFLOPS dense on the B300 against 27.8 TFLOPS on the RTX A5000. Memory bandwidth of 8000 GB/s on the B300 versus 768 GB/s on the RTX A5000 permits larger batch sizes during training or inference workloads that move substantial tensor data. The B300 FP16 dense rating of 2250 TFLOPS supports higher throughput in dense matrix operations than the RTX A5000 FP16 with sparsity rating of 222.2 TFLOPS supports in sparse matrix operations.
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
1 provider in stock, 1 offer. All B300 offers, price history and alerts
RTX A5000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Romania, RO | 1 | $0.23 | — | Deploy |
| Paperspace | ny2 | 4 | $1.38 | $5.52 | Deploy |
2 providers in stock, 9 offers (cheapest per provider shown). All RTX A5000 offers, price history and alerts
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When to Choose the B300
The B300 GPU suits workloads that require 262 to 288 GB HBM3e capacity and 8000 GB/s bandwidth together with 2250 TFLOPS dense FP16. Large scale training sessions that move data at those bandwidth levels benefit from the 1400W TDP allowance and SXM6 form factor.
When to Choose the RTX A5000
The RTX A5000 GPU suits workloads that operate within 24 GB GDDR6 capacity and 768 GB/s bandwidth together with 27.8 TFLOPS FP32. PCIe based deployments that remain under the 230W TDP limit align with the listed Ampere specifications.
Use Cases
The B300 supplies 2250 TFLOPS dense FP16 and 8000 GB/s bandwidth that accommodate large model training at scale.
The B300 supplies 4500 TFLOPS FP16 with sparsity and 8000 GB/s bandwidth that support high volume inference batches.
The B300 supplies 262 to 288 GB HBM3e and 2250 TFLOPS dense FP16 that handle parameter updates on sizable datasets.
The RTX A5000 supplies 24 GB GDDR6 and 27.8 TFLOPS FP32 that fit within typical image generation memory footprints.
The B300 supplies 75 TFLOPS FP32 and 8000 GB/s bandwidth that accelerate dense numerical simulations.
Frequently Asked Questions
What is the memory difference between B300 and RTX A5000?▾
The B300 contains 262 to 288 GB HBM3e while the RTX A5000 contains 24 GB GDDR6. Bandwidth reaches 8000 GB/s on the B300 versus 768 GB/s on the RTX A5000.
How does FP16 performance compare on these GPUs?▾
The B300 lists 2250 TFLOPS dense FP16 and 4500 TFLOPS FP16 with sparsity. The RTX A5000 lists 222.2 TFLOPS FP16 with sparsity.
What TDP ratings apply to the B300 and RTX A5000?▾
The B300 carries a 1400W TDP rating. The RTX A5000 carries a 230W TDP rating.
Which interconnect options exist on each card?▾
The B300 supports NVLink, PCIe 6.0 and InfiniBand. The RTX A5000 supports NVLink and PCIe 4.0.
What FP32 performance do the GPUs deliver?▾
The B300 delivers 75 TFLOPS FP32. The RTX A5000 delivers 27.8 TFLOPS FP32.
Which is cheaper to rent, the B300 or the RTX A5000?▾
Cloud rental prices for both the B300 and RTX A5000 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 A5000?▾
The B300 has 262 to 288 GB of HBM3e memory. The RTX A5000 has 24 GB of GDDR6 memory.
Can I find B300 and RTX A5000 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 A5000?▾
The B300 uses the Blackwell Ultra architecture (2025) while the RTX A5000 uses Ampere (2021). The B300 has 262-288 GB of HBM3e at 8,000 GB/s; the RTX A5000 has 24 GB of GDDR6 at 768 GB/s, so the B300 has 10.4x the memory bandwidth of the RTX A5000.
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 A5000. 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
- Rent B300Every current offer by provider, daily price history and a price alert.
- Rent RTX A5000Every current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.