NVIDIA B200 SXM6 vs NVIDIA RTX PRO 2000 Blackwell Comparison

FAQ

Q: What are the core architectural differences between the NVIDIA B200 SXM6 and the RTX PRO 2000 Blackwell?

A: The B200 SXM6 uses the GB100 chip with 208,000 million transistors on a 1628 mm² die, while the RTX PRO 2000 uses the GB206 chip with 21,900 million transistors on a 181 mm² die. Both are built on a 5 nm process at TSMC, but the B200 is from the Server Blackwell (Bxx) generation, and the RTX PRO 2000 is from the Blackwell PRO W (x000) generation with a Blackwell 2.0 architecture.

Q: How do the memory subsystems compare?

A: The B200 SXM6 has 180 GB of HBM3e memory on a 8192-bit bus with 8.19 TB/s bandwidth. The RTX PRO 2000 has 16 GB of GDDR7 memory on a 128-bit bus with 288.0 GB/s bandwidth. The B200's memory bus is 64 times wider, and its bandwidth is more than 28 times higher.

Q: What is the performance difference in raw FP32 compute?

A: The B200 SXM6 delivers 69.34 TFLOPS of FP32 performance, while the RTX PRO 2000 delivers 17.03 TFLOPS. The B200 is roughly 4 times faster in this metric, translating to a 307% advantage.

Q: Which GPU has higher clock speeds?

A: The RTX PRO 2000 has a higher boost clock at 1957 MHz, compared to the B200's 1830 MHz. However, the B200 has a much lower base clock at 120 MHz versus 982 MHz for the RTX PRO 2000.

Q: What are the physical and power differences?

A: The B200 SXM6 is an SXM Module with a 1000 W TDP and a suggested PSU of 1400 W, with no display outputs. The RTX PRO 2000 is a Dual-slot card, 167 mm long, 69 mm high, and 20 mm wide, with a 70 W TDP and a suggested PSU of 250 W, and it has 4x mini-DisplayPort 2.1b outputs.

Q: How does the RTX PRO 2000 rank against other GPUs?

A: The RTX PRO 2000 has an average benchmark score of 25269 and sits in the 70th percentile of all GPUs. Its nearest rivals include the AMD Radeon RX 6700M (25633, -1.4% delta), AMD Radeon Pro W5700 (25726, -1.8% delta), NVIDIA GeForce RTX 3080 Ti Mobile (25740, -1.8% delta), and NVIDIA RTX A5000 Mobile (24763, +2% delta).

Architecture Differences

The two GPUs share a common Blackwell lineage but diverge sharply in implementation. The B200 SXM6 uses the GB100 chip, a massive 1628 mm² die with 208,000 million transistors, resulting in a transistor density of 127.8M per mm². The RTX PRO 2000 uses the GB206 chip, a much smaller 181 mm² die with 21,900 million transistors, yielding a density of 121.0M per mm². Both are fabricated on a 5 nm process at TSMC, but the density difference indicates different design priorities: the B200 packs more compute and memory logic into a larger area, while the RTX PRO 2000 is optimized for workstation versatility.

The B200 is classified under the Server Blackwell (Bxx) generation, while the RTX PRO 2000 belongs to the Blackwell PRO W (x000) generation with a Blackwell 2.0 architecture label. This distinction matters for feature sets. The B200 has no RT cores listed, while the RTX PRO 2000 has 34 RT cores. The B200 has 592 tensor cores, versus 136 for the RTX PRO 2000. The B200 has 18,944 shading units, 592 TMUs, and 24 ROPs, while the RTX PRO 2000 has 4,352 shading units, 136 TMUs, and 48 ROPs. The ROP count is notable: the workstation card has double the ROPs, which boosts pixel throughput despite having far fewer shaders.

The API support also differs. The B200 reports N/A for DirectX, OpenGL, and Vulkan, which is typical for a server accelerator without display output. The RTX PRO 2000 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it suitable for client-side rendering and professional graphics workloads.

Memory architecture is fundamentally different. The B200 uses HBM3e with 180 GB capacity and an 8192-bit bus, delivering 8.19 TB/s bandwidth. The RTX PRO 2000 uses GDDR7 with 16 GB capacity and a 128-bit bus, delivering 288.0 GB/s bandwidth. The B200's memory clock is 2000 MHz (8 Gbps effective), while the RTX PRO 2000 runs at 1125 MHz (18 Gbps effective). The higher effective data rate of GDDR7 does not compensate for the B200's massive bus width.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the B200 SXM6 and the RTX PRO 2000. The B200 has zero recorded benchmarks, an average benchmark score of 0, and no nearest rivals listed. The RTX PRO 2000 has ten benchmark entries across multiple test suites.

For the RTX PRO 2000, the recorded data shows a wide range of performance depending on the workload. In 3DMark Steel Nomad DX12, it scores 2374.5. In Geekbench, it achieves 106087 in OpenCL and 113865 in Vulkan. PassMark results vary dramatically: DirectX 9 scores 241, DirectX 10 scores 122, DirectX 11 scores 174, DirectX 12 scores 80, G2D scores 1303, G3D scores 20049, and GPU Compute scores 8396. The average benchmark score is 25269.

The nearest rivals for the RTX PRO 2000 provide context. It trails the AMD Radeon RX 6700M by 1.4% (25633 versus 25269), the AMD Radeon Pro W5700 by 1.8% (25726), and the NVIDIA GeForce RTX 3080 Ti Mobile by 1.8% (25740). It leads the NVIDIA RTX A5000 Mobile by 2% (24763). These deltas are small, indicating the RTX PRO 2000 sits in a competitive performance band for its class.

The B200's lack of benchmark scores means no direct comparison is possible from the recorded data. The raw specification differences, however, suggest the B200 would dominate in compute-heavy tasks. Its FP32 throughput is 69.34 TFLOPS versus 17.03 TFLOPS for the RTX PRO 2000, a 4.07x advantage. Texture rate is 1,083.4 GTexel/s versus 266.2 GTexel/s, a 4.07x difference. Pixel rate is the exception: the RTX PRO 2000 achieves 93.94 GPixel/s, more than double the B200's 43.92 GPixel/s, due to its higher ROP count and boost clock.

Specification Differences

The two GPUs differ in nearly every measurable specification. The chip is GB100 for the B200 versus GB206 for the RTX PRO 2000. Transistor count is 208,000 million versus 21,900 million. Die size is 1628 mm² versus 181 mm². Transistor density is 127.8M per mm² versus 121.0M per mm².

Clock speeds differ significantly. The B200 has a base clock of 120 MHz and a boost clock of 1830 MHz. The RTX PRO 2000 has a base clock of 982 MHz and a boost clock of 1957 MHz. Memory clocks are 2000 MHz (8 Gbps effective) for the B200 and 1125 MHz (18 Gbps effective) for the RTX PRO 2000.

Memory capacity is 180 GB HBM3e for the B200 versus 16 GB GDDR7 for the RTX PRO 2000. Bus width is 8192 bit versus 128 bit. Bandwidth is 8.19 TB/s versus 288.0 GB/s.

Compute resources differ: shading units are 18,944 versus 4,352; TMUs are 592 versus 136; ROPs are 24 versus 48; tensor cores are 592 versus 136; RT cores are absent on the B200 versus 34 on the RTX PRO 2000.

Rates and throughput: pixel rate is 43.92 GPixel/s for the B200 versus 93.94 GPixel/s for the RTX PRO 2000. Texture rate is 1,083.4 GTexel/s versus 266.2 GTexel/s. FP32 is 69.34 TFLOPS versus 17.03 TFLOPS. FP16 is also 69.34 TFLOPS (1:1) versus 17.03 TFLOPS (1:1).

Power and physical specs: TDP is 1000 W for the B200 versus 70 W for the RTX PRO 2000. Suggested PSU is 1400 W versus 250 W. Slot width is SXM Module versus Dual-slot. The B200 has no power connectors listed and no display outputs. The RTX PRO 2000 has no power connectors (powered via slot) and 4x mini-DisplayPort 2.1b outputs. The B200 uses PCIe 6.0 x16, while the RTX PRO 2000 uses PCIe 5.0 x8. The RTX PRO 2000 has dimensions of 167 mm length, 69 mm height, and 20 mm width. The B200 has no listed dimensions.

Release dates differ: the B200 was released on 2024-10-31, and the RTX PRO 2000 on 2025-08-10. The B200 has a launch MSRP of 34,999 USD, while the RTX PRO 2000 has no launch MSRP listed. Both are Active in production status. The B200's predecessor is Server Hopper and successor is Server Rubin. The RTX PRO 2000's predecessor is Workstation Ada with no successor listed.

The Verdict

The data presents two GPUs designed for entirely different workloads. The B200 SXM6 is a server accelerator with massive memory capacity, extreme bandwidth, and high FP32 throughput, but it lacks display outputs and API support for client graphics. The RTX PRO 2000 is a workstation card with display outputs, full API support, and modest power requirements.

The B200's raw compute advantage is clear: 4.07x higher FP32, 4.07x higher texture rate, and 28.4x higher memory bandwidth. It also offers 180 GB of memory, which is 11.25x more capacity than the RTX PRO 2000's 16 GB. These numbers point to workloads involving large datasets, AI training, and scientific simulation.

The RTX PRO 2000 holds advantages in pixel rate (93.94 versus 43.92 GPixel/s), ROP count (48 versus 24), and boost clock (1957 MHz versus 1830 MHz). It also has RT cores, which the B200 lacks. It is the only one of the two with any benchmark data, achieving an average score of 25269 and ranking in the 70th percentile of all GPUs. Its nearest rivals are all within 2% of its score, indicating it is a competitive performer in its class.

The power envelope is decisive for deployment scenarios. The B200 requires a 1000 W TDP and a 1400 W suggested PSU, plus an SXM module slot. The RTX PRO 2000 needs only 70 W, a 250 W PSU, and fits in a standard dual-slot PCIe card. The B200 has no display outputs, so it cannot drive a monitor. The RTX PRO 2000 has four mini-DisplayPort 2.1b outputs.

The percentile data reinforces the positioning. The B200 has a 50th percentile score (with zero benchmarks), while the RTX PRO 2000 sits at the 70th percentile. The B200's percentile is not meaningful without benchmark scores, but the specification sheet suggests it targets a different segment entirely.

Where Each One Wins

The B200 SXM6 wins in scenarios requiring massive memory and bandwidth. Its 180 GB HBM3e and 8.19 TB/s bandwidth are suited for large language models, high-performance computing, and data-intensive AI workloads. The 69.34 TFLOPS FP32 and FP16 performance supports heavy compute tasks. The 8,192-bit bus allows feeding many compute units simultaneously. The 1,083.4 GTexel/s texture rate handles high-throughput texture processing. Its 5 nm process and 208,000 million transistors on a 1628 mm² die indicate a design optimized for raw throughput over efficiency. The absence of display outputs confirms its role as a compute accelerator, not a workstation GPU.

The RTX PRO 2000 wins in professional graphics and workstation tasks. Its 93.94 GPixel/s pixel rate and 48 ROPs provide strong rasterization performance. The 34 RT cores enable hardware ray tracing, which the B200 lacks entirely. The 4x mini-DisplayPort 2.1b outputs drive multiple monitors, and the DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support covers modern graphics APIs. Its 70 W TDP and 250 W suggested PSU make it deployable in standard workstations. The 167 mm length and dual-slot design fit conventional cases. Its benchmark scores, particularly the 20049 in PassMark G3D and 113865 in Geekbench Vulkan, demonstrate solid performance in real-world graphics workloads.

The efficiency gap is stark: the B200 uses 1000 W versus 70 W for the RTX PRO 2000, a 14.3x difference. The B200's memory bandwidth per watt is 8.19 TB/s per 1000 W, while the RTX PRO 2000 achieves 4.11 GB/s per watt. The B200 is designed for maximum throughput regardless of power cost. The RTX PRO 2000 is designed for a balanced workstation profile.

The RTX PRO 2000's nearest rival data shows it competes closely with mobile and workstation GPUs like the RX 6700M, Pro W5700, RTX 3080 Ti Mobile, and RTX A5000 Mobile, all within 2% of its average score. This indicates it is a well-tuned performer in its segment. The B200 has no rival data, so its competitive position cannot be assessed from the database.

For users needing a display-capable GPU with modern API support and low power draw, the RTX PRO 2000 is the only choice between these two. For users needing extreme memory capacity and compute throughput in a server context, the B200 SXM6 is the clear option. The data does not support using either GPU for the other's purpose.