NVIDIA B200 SXM6 vs NVIDIA RTX PRO 6000 Blackwell Comparison

Head-to-Head Benchmarks

The recorded database contains one benchmark result for the NVIDIA RTX PRO 6000 Blackwell, a 3DMark Steel Nomad DX12 score of 16,408. The NVIDIA B200 SXM6 has no benchmark entries in the database, so a direct numerical comparison between the two cards in any specific test is not possible from the recorded data. All head-to-head comparisons must therefore rely on architectural specifications and the single available score for the RTX PRO 6000 Blackwell.

The RTX PRO 6000 Blackwell’s 3DMark Steel Nomad DX12 score places it in a tight cluster with its nearest rivals. The AMD Radeon PRO W7500 scores 16,415, a delta of 0 percent, meaning the two cards are effectively tied in this workload. The AMD Radeon RX 5700 XT scores 16,361, which is 0.3 percent behind the RTX PRO 6000 Blackwell. The AMD Radeon Pro 5600M scores 16,351, 0.4 percent behind. The NVIDIA GeForce RTX 5090 D V2 scores 16,504, putting it 0.6 percent ahead of the RTX PRO 6000 Blackwell.

These deltas are small, all within one percentage point, indicating that the RTX PRO 6000 Blackwell delivers performance that is competitive with a range of other cards in this specific DirectX 12 test. The B200 SXM6, lacking any benchmark results, cannot be positioned within this ranking. Its percentile versus all GPUs is 50, while the RTX PRO 6000 Blackwell sits at percentile 59, suggesting that the latter ranks higher in the overall distribution of recorded GPU scores, though the B200’s lack of a score means this difference is not directly measurable.

The Verdict

The data shows two very different products. The NVIDIA B200 SXM6 is a server accelerator with no display outputs, no graphics API support, and a power target of 1000 W. The NVIDIA RTX PRO 6000 Blackwell is a workstation card with 4x DisplayPort 2.1b outputs, full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support, and a 600 W power target. For anyone running graphics workloads, the RTX PRO 6000 Blackwell is the only choice that makes sense from the recorded specifications, as the B200 SXM6 cannot output video or run standard graphics APIs.

For compute-oriented tasks, the B200 SXM6 offers 180 GB of HBM3e memory with 8.19 TB/s bandwidth, while the RTX PRO 6000 Blackwell has 96 GB of GDDR7 with 1.79 TB/s. The B200’s memory capacity is roughly double, and its bandwidth is over four times higher. The FP32 compute rate for the B200 is 69.34 TFLOPS, while the RTX PRO 6000 Blackwell reaches 126.0 TFLOPS. The RTX PRO 6000 Blackwell is therefore the stronger card for raw FP32 throughput, but the B200 SXM6 holds a significant advantage in memory capacity and bandwidth, which can be decisive for large data sets.

The RTX PRO 6000 Blackwell also has a higher transistor count per unit of die area, 122.9 million per mm² versus 127.8 million per mm² for the B200 SXM6, though the B200 uses a much larger die. The B200 SXM6 has 208,000 million transistors on a 1628 mm² die, while the RTX PRO 6000 Blackwell has 92,200 million on a 750 mm² die. Neither card is a clear winner across all dimensions; the choice depends entirely on the workload.

Architecture Differences

The B200 SXM6 uses the GB100 chip, built on the Blackwell architecture, while the RTX PRO 6000 Blackwell uses the GB202 chip, listed as Blackwell 2.0. Both are fabricated by TSMC on a 5 nm process node. The B200 SXM6 is part of the Server Blackwell (Bxx) generation, whereas the RTX PRO 6000 Blackwell belongs to the Blackwell PRO W (x000) generation.

The B200 SXM6 has 208,000 million transistors on a 1628 mm² die, resulting in a transistor density of 127.8 million per mm². The RTX PRO 6000 Blackwell has 92,200 million transistors on a 750 mm² die, with a density of 122.9 million per mm². The B200 SXM6’s die is more than twice the area of the RTX PRO 6000 Blackwell’s, and it packs more than double the transistors.

The B200 SXM6 has 18,944 shading units, 592 TMUs, and 24 ROPs. The RTX PRO 6000 Blackwell has 24,064 shading units, 752 TMUs, and 192 ROPs. The RTX PRO 6000 Blackwell has more of each of these units. The B200 SXM6 has 592 tensor cores, while the RTX PRO 6000 Blackwell has 752. The RTX PRO 6000 Blackwell also has 188 RT cores, while the B200 SXM6 lists no RT core count.

The B200 SXM6’s memory subsystem is HBM3e with a 180 GB capacity and an 8192 bit bus, delivering 8.19 TB/s bandwidth. The RTX PRO 6000 Blackwell uses GDDR7 with 96 GB capacity, a 512 bit bus, and 1.79 TB/s bandwidth. The B200 SXM6’s memory clock is listed as 2000 MHz with 8 Gbps effective, while the RTX PRO 6000 Blackwell runs at 1750 MHz with 28 Gbps effective.

Specification Differences

The B200 SXM6 has a base clock of 120 MHz and a boost clock of 1830 MHz. The RTX PRO 6000 Blackwell has a base clock of 1590 MHz and a boost clock of 2617 MHz. The RTX PRO 6000 Blackwell runs at substantially higher frequencies.

The B200 SXM6 has 180 GB of HBM3e memory, while the RTX PRO 6000 Blackwell has 96 GB of GDDR7. The memory bus widths are 8192 bit versus 512 bit. The memory bandwidth figures are 8.19 TB/s for the B200 SXM6 and 1.79 TB/s for the RTX PRO 6000 Blackwell.

The FP32 compute is 69.34 TFLOPS for the B200 SXM6 and 126.0 TFLOPS for the RTX PRO 6000 Blackwell. Both cards list FP16 at the same rate as FP32, 69.34 TFLOPS and 126.0 TFLOPS respectively.

The pixel rate is 43.92 GPixel/s for the B200 SXM6 and 502.5 GPixel/s for the RTX PRO 6000 Blackwell. The texture rates are 1,083.4 GTexel/s and 1,968.0 GTexel/s respectively.

The B200 SXM6 has a TDP of 1000 W and a suggested PSU of 1400 W. The RTX PRO 6000 Blackwell has a TDP of 600 W and a suggested PSU of 1000 W. The B200 SXM6 is an SXM module, while the RTX PRO 6000 Blackwell is dual-slot with a 1x 16-pin power connector. The B200 SXM6 uses PCIe 6.0 x16, while the RTX PRO 6000 Blackwell uses PCIe 5.0 x16.

The B200 SXM6 has no display outputs and no graphics API support. The RTX PRO 6000 Blackwell has 4x DisplayPort 2.1b outputs and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX PRO 6000 Blackwell is 304 mm long, 137 mm high, and 40 mm wide. The B200 SXM6 lists no dimensions.

The B200 SXM6 was released on 2024-10-31, while the RTX PRO 6000 Blackwell was released on 2025-03-17. The B200 SXM6’s predecessor is Server Hopper and its successor is Server Rubin. The RTX PRO 6000 Blackwell’s predecessor is Workstation Ada, and it has no listed successor. The launch MSRP for the B200 SXM6 is 34,999 USD, and for the RTX PRO 6000 Blackwell it is 8,565 USD.

FAQ

Q: Which card has more memory?

A: The NVIDIA B200 SXM6 has 180 GB of HBM3e, while the NVIDIA RTX PRO 6000 Blackwell has 96 GB of GDDR7.

Q: Which card has higher FP32 compute?

A: The NVIDIA RTX PRO 6000 Blackwell has 126.0 TFLOPS, while the NVIDIA B200 SXM6 has 69.34 TFLOPS.

Q: Does the B200 SXM6 support display outputs?

A: No, the B200 SXM6 has no display outputs, while the RTX PRO 6000 Blackwell has 4x DisplayPort 2.1b.

Q: What is the memory bandwidth difference?

A: The B200 SXM6 delivers 8.19 TB/s, while the RTX PRO 6000 Blackwell delivers 1.79 TB/s.

Q: Which card has a higher boost clock?

A: The RTX PRO 6000 Blackwell boosts to 2617 MHz, while the B200 SXM6 boosts to 1830 MHz.

Q: What are the power targets?

A: The B200 SXM6 has a TDP of 1000 W, and the RTX PRO 6000 Blackwell has a TDP of 600 W.

Where Each One Wins

The B200 SXM6 wins on memory capacity and bandwidth. Its 180 GB of HBM3e and 8.19 TB/s bandwidth dwarf the RTX PRO 6000 Blackwell’s 96 GB and 1.79 TB/s. For workloads that require holding very large models or data sets in memory, the B200 SXM6 is the stronger option. It also has a wider memory bus at 8192 bit versus 512 bit. The B200 SXM6 is a server module, designed for dense compute environments, and its PCIe 6.0 x16 interface is newer than the RTX PRO 6000 Blackwell’s PCIe 5.0 x16.

The RTX PRO 6000 Blackwell wins on raw compute throughput. Its FP32 rate of 126.0 TFLOPS is nearly double the B200 SXM6’s 69.34 TFLOPS. It also has more shading units, TMUs, ROPs, and tensor cores. The pixel rate of 502.5 GPixel/s and texture rate of 1,968.0 GTexel/s are both far higher than the B200 SXM6’s figures. The RTX PRO 6000 Blackwell also has full graphics API support, including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, which the B200 SXM6 lacks entirely.

The RTX PRO 6000 Blackwell is the only one of the two that can drive displays, with 4x DisplayPort 2.1b outputs. Its 600 W TDP is lower than the B200 SXM6’s 1000 W, and its suggested PSU is 1000 W versus 1400 W. The RTX PRO 6000 Blackwell’s form factor is a dual-slot card with a 1x 16-pin connector, whereas the B200 SXM6 is an SXM module.

In the single recorded benchmark, the RTX PRO 6000 Blackwell scores 16,408 in 3DMark Steel Nomad DX12, placing it within 0.6 percent of the GeForce RTX 5090 D V2 and 0.3 percent ahead of the Radeon RX 5700 XT. The B200 SXM6 has no benchmark scores, so its performance in this test is unknown.

The B200 SXM6’s higher transistor count, 208,000 million versus 92,200 million, and larger die, 1628 mm² versus 750 mm², indicate a more complex chip. However, the RTX PRO 6000 Blackwell has higher clock speeds, with a boost of 2617 MHz versus 1830 MHz, which contributes to its higher compute rates despite fewer transistors.

For compute tasks that are memory-bound, the B200 SXM6 is the clear choice. For graphics, rendering, or any workload requiring display output, the RTX PRO 6000 Blackwell is the only option that supports it. For FP32-heavy compute, the RTX PRO 6000 Blackwell delivers more than 80 percent higher throughput. The B200 SXM6’s advantage lies in its memory subsystem, which is over four times faster in bandwidth and nearly double in capacity.