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NVIDIA B200 SXM 180GB vs NVIDIA RTX PRO 4500 Blackwell 32GB

The B200 delivers 11.1x the FP8 throughput of the RTX PRO 4500 Blackwell (4,500 vs 406 TFLOPS dense). The B200 also carries 148 GB more memory (180 GB vs 32 GB).

B200: Blackwell, 2024 RTX PRO 4500 Blackwell: Blackwell, 2025
FP8 dense lead
11.1x
B200: 4,500 vs 406 TFLOPS
Memory
180 vs 32 GB
148 GB more for the B200
Bandwidth
7.7 TB/s vs 896 GB/s
B200 moves data faster
TDP
1.0 kW vs 200 W
RTX PRO 4500 Blackwell draws 800 W less
See rental pricing from $0.72/hr Download comparison sheet

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NVIDIA B200 SXM 180GB vs NVIDIA RTX PRO 4500 Blackwell 32GB

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NVIDIA B200 SXM 180GB

Leads on FP8 Full specs →

What is the NVIDIA B200?

The B200 is a GPU from NVIDIA on the Blackwell architecture, an accelerator for AI training, inference and high-performance computing. It is an SXM module, the mezzanine format used in dense multi-GPU servers. B200 full specifications →

Can I rent the B200 in the cloud?

Yes. Cloud providers tracked by Flopper rent the B200 by the hour, and the pricing page compares their current rates and the price history side by side. B200 rental prices →

How does the B200 compare with other accelerators?

This page sets the B200 against the RTX PRO 4500 Blackwell. The B200 is the older generation of the two. Both are NVIDIA parts; the B200 is an SXM module while the RTX PRO 4500 Blackwell is a PCIe card. Flopper also compares it head to head with the A100 SXM4 80GB, B100 SXM 192GB and B300 SXM 262GB, across every published precision, memory and power. B200 vs A100 SXM4 80GB →

Where do the B200 figures come from?

Every B200 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA RTX PRO 4500 Blackwell 32GB

Full specs →

What is the NVIDIA RTX PRO 4500 Blackwell?

The RTX PRO 4500 Blackwell is a GPU from NVIDIA on the Blackwell architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. RTX PRO 4500 Blackwell full specifications →

Can I rent the RTX PRO 4500 Blackwell in the cloud?

Yes. Cloud providers tracked by Flopper rent the RTX PRO 4500 Blackwell by the hour, and the pricing page compares their current rates and the price history side by side. RTX PRO 4500 Blackwell rental prices →

How does the RTX PRO 4500 Blackwell compare with other accelerators?

This page sets the RTX PRO 4500 Blackwell against the B200. The RTX PRO 4500 Blackwell is the newer generation of the two. Both are NVIDIA parts; the RTX PRO 4500 Blackwell is a PCIe card while the B200 is an SXM module. Flopper also compares it head to head with the RTX PRO 4500 Blackwell Server Edition, across every published precision, memory and power. RTX PRO 4500 Blackwell vs RTX PRO 4500 Blackwell Server Edition →

Where do the RTX PRO 4500 Blackwell figures come from?

Every RTX PRO 4500 Blackwell figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

B200
RTX PRO 4500 Blackwell
Architecture
BlackwellBlackwell
Launch Year
20242025
Form Factor
SXMPCIe
Memory
180 GB32 GB
Memory Bandwidth
7.7 TB/s896 GB/s
TDP
1.0 kW200 W
Process Node
4nm4nm

Performance (TFLOPS)

B200
RTX PRO 4500 Blackwell
37 TFLOPS No verified data available
75 TFLOPS 51 TFLOPS
1,125 TFLOPS
2,250 TFLOPS sparse
102 TFLOPS
203 TFLOPS sparse
2,250 TFLOPS
4,500 TFLOPS sparse
203 TFLOPS
406 TFLOPS sparse
2,250 TFLOPS
4,500 TFLOPS sparse
203 TFLOPS
406 TFLOPS sparse
4,500 TFLOPS
9,000 TFLOPS sparse
406 TFLOPS
811 TFLOPS sparse
FP6
4,500 TFLOPS
9,000 TFLOPS sparse
 No verified data available
9,000 TFLOPS
18,000 TFLOPS sparse
809 TFLOPS
1,617 TFLOPS sparse
4,500 TOPS
9,000 TOPS sparse
 No verified data available

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

The RTX PRO 4500 Blackwell is the newer part: Blackwell (2025) against the B200's Blackwell (2024).

The B200 carries 148 GB more memory (180 GB against 32 GB), so larger models fit on one GPU before you shard. Bandwidth is 7.7 TB/s against 896 GB/s, which sets the ceiling on decode speed.

Power is 1.0 kW against 200 W, and at FP32 the RTX PRO 4500 Blackwell does more work per watt. Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP64, FP32, TF32, BF16, FP16, FP8, FP4, INT8, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Is the B200 faster than the RTX PRO 4500 Blackwell?

At FP8 precision the B200 reaches 4,500 TFLOPS dense against 406 TFLOPS for the RTX PRO 4500 Blackwell. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the B200 or the RTX PRO 4500 Blackwell?

Choose the B200 for training and high-throughput inference: it has 11.1x the FP8 throughput of the RTX PRO 4500 Blackwell. It also carries 148 GB more memory, so larger models fit on one GPU before you shard. The B200 draws 800 W more power, so budget for cooling and power delivery before you commit. Packaging differs too: the B200 is an SXM module while the RTX PRO 4500 Blackwell is a PCIe card, so check what your servers accept.

Which has more memory, the B200 or the RTX PRO 4500 Blackwell?

The B200 carries 180 GB of memory versus 32 GB for the RTX PRO 4500 Blackwell. Memory bandwidth is 7.7 TB/s for the B200 and 896 GB/s for the RTX PRO 4500 Blackwell.

How much power do the B200 and the RTX PRO 4500 Blackwell draw?

The B200 is rated at 1.0 kW TDP and the RTX PRO 4500 Blackwell at 200 W. On FP32 throughput per watt, the RTX PRO 4500 Blackwell is the more efficient part.

How much do the B200 and the RTX PRO 4500 Blackwell cost to rent?

Live cloud listings tracked by Flopper price the B200 from $0.99 per GPU-hour across 24 providers, and the RTX PRO 4500 Blackwell from $0.72 per GPU-hour across 3 providers. The rental section on this page links to every provider, rate and the price history for each GPU.

Where to Rent

NVIDIA B200 SXM 180GB

Rent from

$0.99 / GPU-hr

Lowest of 35 live listings across 24 providers · median $6.69

See all B200 rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

NVIDIA RTX PRO 4500 Blackwell 32GB

Rent from

$0.72 / GPU-hr

Lowest of 8 live listings across 3 providers · median $0.72

See all RTX PRO 4500 Blackwell rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

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