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NVIDIA B100 SXM 192GB vs NVIDIA RTX PRO 5500 Blackwell Workstation Edition

Side-by-side specifications, performance, and rental pricing for datacenter AI workloads.

B100: Blackwell, 2024 RTX PRO 5500 Blackwell: Blackwell, 2026
Memory
192 vs 84 GB
108 GB more for the B100
Bandwidth
8.0 TB/s vs 1.4 TB/s
B100 moves data faster
TDP
700 W vs 600 W
RTX PRO 5500 Blackwell draws 100 W less
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NVIDIA B100 SXM 192GB vs NVIDIA RTX PRO 5500 Blackwell Workstation Edition

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NVIDIA B100 SXM 192GB

Full specs →

What is the NVIDIA B100?

The B100 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. B100 full specifications →

Can I rent the B100 in the cloud?

Flopper is not tracking any live rental listings for the B100 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the B100 compare with other accelerators?

This page sets the B100 against the RTX PRO 5500 Blackwell. The B100 is the older generation of the two. Both are NVIDIA parts; the B100 is an SXM module while the RTX PRO 5500 Blackwell is a PCIe card. Flopper also compares it head to head with the B200 SXM 180GB, across every published precision, memory and power. B100 vs B200 SXM 180GB →

Where do the B100 figures come from?

NVIDIA published the B100 figures in marketing material rather than a datasheet, and Flopper has no independent confirmation of them. How Flopper verifies specifications →

NVIDIA RTX PRO 5500 Blackwell Workstation Edition

Full specs →

What is the NVIDIA RTX PRO 5500 Blackwell?

The RTX PRO 5500 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. It has been announced but is not yet shipping. RTX PRO 5500 Blackwell full specifications →

Can I rent the RTX PRO 5500 Blackwell in the cloud?

Flopper is not tracking any live rental listings for the RTX PRO 5500 Blackwell yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the RTX PRO 5500 Blackwell compare with other accelerators?

This page sets the RTX PRO 5500 Blackwell against the B100. The RTX PRO 5500 Blackwell is the newer generation of the two. Both are NVIDIA parts; the RTX PRO 5500 Blackwell is a PCIe card while the B100 is an SXM module. Flopper also compares it head to head with the RTX PRO 6000 Blackwell Workstation Edition, RTX PRO 5000 Blackwell 72GB and GeForce RTX 5090 32GB, across every published precision, memory and power. RTX PRO 5500 Blackwell vs RTX PRO 6000 Blackwell Workstation Edition →

Where do the RTX PRO 5500 Blackwell figures come from?

NVIDIA published the RTX PRO 5500 Blackwell figures in marketing material rather than a datasheet, and Flopper has no independent confirmation of them. How Flopper verifies specifications →

Specifications

B100
RTX PRO 5500 Blackwell
Architecture
BlackwellBlackwell
Launch Year
20242026
Form Factor
SXMPCIe
Memory
192 GB84 GB
Memory Bandwidth
8.0 TB/s1.4 TB/s
TDP
700 W600 W
Process Node
4nm4nm

Performance (TFLOPS)

B100
RTX PRO 5500 Blackwell
30 TFLOPS No verified data available
60 TFLOPS No verified data available
875 TFLOPS
sparse not published
 No verified data available
1,750 TFLOPS
sparse not published
 No verified data available
1,750 TFLOPS
sparse not published
 No verified data available
3,500 TFLOPS
sparse not published
 No verified data available
FP6
No verified data available No verified data available
7,000 TFLOPS
sparse not published
 No verified data available
3,500 TOPS
sparse not published
 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 5500 Blackwell is the newer part: Blackwell (2026) against the B100's Blackwell (2024).

The B100 carries 108 GB more memory (192 GB against 84 GB), so larger models fit on one GPU before you shard. Bandwidth is 8.0 TB/s against 1.4 TB/s, which sets the ceiling on decode speed.

Power is 700 W against 600 W, and at FP32 the B100 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

Which should you choose, the B100 or the RTX PRO 5500 Blackwell?

Choose the B100 when the model has to fit on one GPU: it carries 108 GB more memory. The RTX PRO 5500 Blackwell draws 100 W less power, which matters in an air-cooled or power-capped rack. Packaging differs too: the B100 is an SXM module while the RTX PRO 5500 Blackwell is a PCIe card, so check what your servers accept.

Which has more memory, the B100 or the RTX PRO 5500 Blackwell?

The B100 carries 192 GB of memory versus 84 GB for the RTX PRO 5500 Blackwell. Memory bandwidth is 8.0 TB/s for the B100 and 1.4 TB/s for the RTX PRO 5500 Blackwell.

How much power do the B100 and the RTX PRO 5500 Blackwell draw?

The B100 is rated at 700 W TDP and the RTX PRO 5500 Blackwell at 600 W. On FP32 throughput per watt, the B100 is the more efficient part.

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