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NVIDIA GB200 Grace Blackwell Superchip 372GB vs NVIDIA RTX PRO 4000 Blackwell SFF 24GB

The GB200 delivers 6.7x the FP32 throughput of the RTX PRO 4000 Blackwell SFF (160 vs 24 TFLOPS dense). The GB200 also carries 348 GB more memory (372 GB vs 24 GB).

GB200: Blackwell, 2024 RTX PRO 4000 Blackwell SFF: Blackwell, 2025
FP32 dense lead
6.7x
GB200: 160 vs 24 TFLOPS
Memory
372 vs 24 GB
348 GB more for the GB200
Bandwidth
16.0 TB/s vs 432 GB/s
GB200 moves data faster
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NVIDIA GB200 Grace Blackwell Superchip 372GB vs NVIDIA RTX PRO 4000 Blackwell SFF 24GB

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NVIDIA GB200 Grace Blackwell Superchip 372GB

Leads on FP32 Full specs →

What is the NVIDIA GB200?

The GB200 is a GPU from NVIDIA on the Blackwell architecture, an accelerator for AI training, inference and high-performance computing. It is a superchip that pairs a CPU and accelerators on one board for rack-scale systems. GB200 full specifications →

Can I rent the GB200 in the cloud?

Flopper is not tracking any live rental listings for the GB200 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the GB200 compare with other accelerators?

This page sets the GB200 against the RTX PRO 4000 Blackwell SFF. The GB200 is the older generation of the two. Both are NVIDIA parts; the GB200 is a superchip while the RTX PRO 4000 Blackwell SFF is a PCIe card. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the GB200 figures come from?

Every GB200 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA RTX PRO 4000 Blackwell SFF 24GB

Full specs →

What is the NVIDIA RTX PRO 4000 Blackwell SFF?

The RTX PRO 4000 Blackwell SFF 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 4000 Blackwell SFF full specifications →

Can I rent the RTX PRO 4000 Blackwell SFF in the cloud?

Flopper is not tracking any live rental listings for the RTX PRO 4000 Blackwell SFF yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the RTX PRO 4000 Blackwell SFF compare with other accelerators?

This page sets the RTX PRO 4000 Blackwell SFF against the GB200. The RTX PRO 4000 Blackwell SFF is the newer generation of the two. Both are NVIDIA parts; the RTX PRO 4000 Blackwell SFF is a PCIe card while the GB200 is a superchip. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the RTX PRO 4000 Blackwell SFF figures come from?

Every RTX PRO 4000 Blackwell SFF figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

GB200
RTX PRO 4000 Blackwell SFF
Architecture
BlackwellBlackwell
Launch Year
20242025
Form Factor
SuperchipPCIe
Memory
372 GB24 GB
Memory Bandwidth
16.0 TB/s432 GB/s
TDP
—70 W
Process Node
4nm4nm

Performance (TFLOPS)

GB200
RTX PRO 4000 Blackwell SFF
80 TFLOPS No verified data available
160 TFLOPS 24 TFLOPS
2,500 TFLOPS
5,000 TFLOPS sparse
 No verified data available
5,000 TFLOPS
10,000 TFLOPS sparse
 No verified data available
5,000 TFLOPS
10,000 TFLOPS sparse
 No verified data available
10,000 TFLOPS
20,000 TFLOPS sparse
 No verified data available
FP6
10,000 TFLOPS
20,000 TFLOPS sparse
 No verified data available
20,000 TFLOPS
40,000 TFLOPS sparse
385 TFLOPS
770 TFLOPS sparse
10,000 TOPS
20,000 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 4000 Blackwell SFF is the newer part: Blackwell (2025) against the GB200's Blackwell (2024).

The GB200 carries 348 GB more memory (372 GB against 24 GB), so larger models fit on one GPU before you shard. Bandwidth is 16.0 TB/s against 432 GB/s, which sets the ceiling on decode speed.

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 GB200 faster than the RTX PRO 4000 Blackwell SFF?

At FP32 precision the GB200 reaches 160 TFLOPS dense against 24 TFLOPS for the RTX PRO 4000 Blackwell SFF. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the GB200 or the RTX PRO 4000 Blackwell SFF?

Choose the GB200 for training and high-throughput inference: it has 6.7x the FP32 throughput of the RTX PRO 4000 Blackwell SFF. It also carries 348 GB more memory, so larger models fit on one GPU before you shard. Packaging differs too: the GB200 is a superchip while the RTX PRO 4000 Blackwell SFF is a PCIe card, so check what your servers accept.

Which has more memory, the GB200 or the RTX PRO 4000 Blackwell SFF?

The GB200 carries 372 GB of memory versus 24 GB for the RTX PRO 4000 Blackwell SFF. Memory bandwidth is 16.0 TB/s for the GB200 and 432 GB/s for the RTX PRO 4000 Blackwell SFF.

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