NVIDIA B300 SXM6 AC vs NVIDIA RTX PRO 2000 Blackwell Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark recorded in the database is Geekbench OpenCL, and the result is decisively lopsided. The NVIDIA B300 SXM6 AC scores 369,831, while the NVIDIA RTX PRO 2000 Blackwell scores 106,087. This gives the B300 a lead of 248.6 percent, a margin that dwarfs any other pairing in the database. To frame this in context, the B300's nearest rival, the NVIDIA B200, scores 345,482, a 7 percent gap. The H200 NVL trails by 10.4 percent at 334,891, the AMD Instinct MI300X by 16.3 percent at 317,994, and the L40S by 25 percent at 295,763. The RTX PRO 2000, by comparison, sits far below all of those parts, closer in aggregate score to workstation-class mobile GPUs than to server accelerators.

The delta between the two cards in this test is so large that it reflects fundamentally different performance tiers rather than incremental differences. The B300 delivers roughly 3.5 times the OpenCL score of the RTX PRO 2000. That is not a minor advantage; it is an order-of-magnitude shift in compute capacity. The RTX PRO 2000's own nearest rivals in the database, such as the AMD Radeon RX 6700M at 25,633 (a 1.4 percent deficit) or the NVIDIA GeForce RTX 3080 Ti Mobile at 25,740 (a 1.8 percent deficit), show that it competes in the mobile-workstation band. The B300, meanwhile, sits at the 100th percentile of all GPUs in the database, while the RTX PRO 2000 sits at the 70th percentile. The data indicates that any head-to-head comparison between these two parts is a comparison across market segments, not within one.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The NVIDIA B300 SXM6 AC scores 369,831, which is 248.6 percent higher than the 106,087 scored by the NVIDIA RTX PRO 2000 Blackwell.

Q: How does the B300 compare to its own nearest rivals?

A: The B300 leads the NVIDIA B200 by 7 percent (345,482), the NVIDIA H200 NVL by 10.4 percent (334,891), the AMD Instinct MI300X by 16.3 percent (317,994), and the NVIDIA L40S by 25 percent (295,763).

Q: What is the percentile ranking of each GPU among all GPUs in the database?

A: The B300 is at the 100th percentile, meaning it outperforms all other recorded GPUs. The RTX PRO 2000 is at the 70th percentile.

Q: Does the RTX PRO 2000 beat any of its nearest rivals?

A: Yes, it leads the NVIDIA RTX A5000 Mobile by 2 percent (24,763), while it trails the AMD Radeon RX 6700M by 1.4 percent, the AMD Radeon Pro W5700 by 1.8 percent, and the NVIDIA GeForce RTX 3080 Ti Mobile by 1.8 percent.

Q: How many benchmark wins does each GPU hold in the head-to-head comparison?

A: The B300 holds one win (Geekbench OpenCL), and the RTX PRO 2000 holds zero wins in the recorded head-to-head data.

Q: What is the average benchmark score for each card?

A: The B300 has an average benchmark score of 369,831, while the RTX PRO 2000 has an average of 25,269, a difference driven by the OpenCL result and the RTX PRO 2000's additional DirectX and Passmark tests.

The Verdict

The recorded data leaves little room for ambiguity. The NVIDIA B300 SXM6 AC is a server-grade accelerator with a single OpenCL score that places it at the absolute top of the database. Its nearest rivals are other server accelerators, and it beats them by margins ranging from 7 to 25 percent. The RTX PRO 2000 Blackwell, by contrast, sits in the 70th percentile, with an average benchmark score of 25,269 that places it alongside mobile workstation parts like the RTX A5000 Mobile and the Radeon RX 6700M.

For anyone choosing between these two, the data points to entirely different workloads. The B300 is designed for compute environments where maximum throughput is the sole objective. Its 288 GB of HBM3e memory and 8.19 TB/s of bandwidth, combined with an FP32 compute rate of 76.99 TFLOPS, make it suitable for large-scale simulation, AI training, or data center inference. The RTX PRO 2000, with 16 GB of GDDR7 memory and 17.03 TFLOPS of FP32 performance, is a workstation part, better matched for desktop rendering, CAD, or professional visualization tasks that require display outputs and a low power envelope. The B300 has no display outputs, while the RTX PRO 2000 has four mini-DisplayPort 2.1b connectors. The verdict is straightforward: the B300 wins on raw compute, the RTX PRO 2000 wins on practicality for a desktop workstation.

Specification Differences

The two cards diverge across nearly every measurable specification. The B300 uses the GB110 chip, while the RTX PRO 2000 uses the GB206. The B300 has 208,000 million transistors on a 1628 mm² die, whereas the RTX PRO 2000 has 21,900 million transistors on a 181 mm² die. Transistor density is higher on the B300 at 127.8M per mm² versus 121.0M per mm² on the RTX PRO 2000. Clock speeds differ substantially: the B300 runs at a base of 1665 MHz and a boost of 2032 MHz, while the RTX PRO 2000 runs at 982 MHz base and 1957 MHz boost. Memory configurations are entirely different: the B300 has 288 GB of HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth, while the RTX PRO 2000 has 16 GB of GDDR7 on a 128-bit bus with 288.0 GB/s bandwidth.

Compute resources also differ. The B300 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 RTX PRO 2000 has 34 RT cores, a feature not listed for the B300. Tensor core counts are 592 on the B300 versus 136 on the RTX PRO 2000. Pixel rate favors the RTX PRO 2000 at 93.94 GPixel/s versus 48.77 GPixel/s for the B300, while texture rate favors the B300 at 1,202.9 GTexel/s versus 266.2 GTexel/s. FP32 and FP16 throughput are both 76.99 TFLOPS on the B300 and 17.03 TFLOPS on the RTX PRO 2000. Power consumption is a major divider: the B300 has a TDP of 1100 W with a suggested PSU of 1500 W, while the RTX PRO 2000 has a TDP of 70 W with a suggested PSU of 250 W.

The B300 is an SXM module with no power connectors listed, while the RTX PRO 2000 is a dual-slot card with no external power connectors. Bus interfaces differ: the B300 uses PCIe 6.0 x16, the RTX PRO 2000 uses PCIe 5.0 x8. Display outputs are absent on the B300, while the RTX PRO 2000 offers four mini-DisplayPort 2.1b. API support also differs, with the RTX PRO 2000 supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the B300 lists N/A for all three. Dimensions are only recorded for the RTX PRO 2000: 167 mm in length, 69 mm in height, and 20 mm in width.

Architecture Differences

The B300 is built on the Blackwell Ultra architecture, specifically the GB110 chip, and belongs to the Server Blackwell (Bxx) generation. The RTX PRO 2000 uses the Blackwell 2.0 architecture with the GB206 chip, in the Blackwell PRO W (x000) generation. Both are fabricated on a 5 nm process at TSMC, but the B300's die is nearly nine times larger at 1628 mm² compared to 181 mm² for the RTX PRO 2000. Transistor counts follow the die size: 208,000 million versus 21,900 million. The B300's predecessor is Server Hopper, and its successor is Server Rubin, while the RTX PRO 2000's predecessor is Workstation Ada and it has no listed successor.

The memory architecture is a fundamental difference. HBM3e on the B300 provides 8.19 TB/s of bandwidth, which is essential for feeding its 18,944 shading units and 592 tensor cores. The RTX PRO 2000 relies on GDDR7, which offers 288.0 GB/s of bandwidth, a figure that is sufficient for its smaller compute array but in a different performance class. The B300's 8192-bit memory bus versus the RTX PRO 2000's 128-bit bus underscores the difference in memory subsystem design.

The RTX PRO 2000 includes 34 RT cores, which are not listed for the B300. This suggests a focus on real-time ray tracing for the workstation card, while the B300's architecture prioritizes tensor and shading throughput. The B300's FP32 and FP16 performance are identical at 76.99 TFLOPS, indicating a 1:1 ratio, and the RTX PRO 2000 also has a 1:1 ratio at 17.03 TFLOPS. The B300's pixel rate is lower than the RTX PRO 2000's, which is unusual given its larger compute resources, but it aligns with the B300's role as a compute accelerator rather than a rasterization-focused GPU.

The B300 has no display outputs, no API support listed, and a TDP of 1100 W, confirming its placement in a server chassis with dedicated cooling and power delivery. The RTX PRO 2000, with a 70 W TDP, dual-slot design, and four display outputs, is built for a workstation tower where power efficiency and multi-monitor support are priorities. The architecture differences are not just about performance; they reflect divergent design goals. One is a data center compute engine, the other is a professional desktop GPU.

Where Each One Wins

The NVIDIA B300 SXM6 AC wins in every scenario that demands maximum compute throughput. Its Geekbench OpenCL score of 369,831 places it at the 100th percentile, and its 76.99 TFLOPS of FP32 performance, combined with 288 GB of HBM3e memory and 8.19 TB/s of bandwidth, makes it the clear choice for large-scale AI training, high-performance computing, or any workload that can saturate a server accelerator. The data shows it is 248.6 percent ahead of the RTX PRO 2000 in the only shared benchmark, and it leads its nearest rivals, the B200 and H200 NVL, by 7 and 10.4 percent respectively. For a data center operator maximizing throughput per module, the B300 is the only option between these two.

The NVIDIA RTX PRO 2000 Blackwell wins in every scenario that requires a physical workstation GPU. It has four mini-DisplayPort 2.1b outputs, which the B300 lacks entirely. Its 70 W TDP means it can run without supplemental power connectors, and its suggested PSU of 250 W is a fraction of the B300's 1500 W requirement. The RTX PRO 2000 also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the B300 lists no API support. Its pixel rate of 93.94 GPixel/s is higher than the B300's 48.77 GPixel/s, indicating stronger rasterization throughput for graphics-oriented tasks. The RTX PRO 2000's 34 RT cores provide hardware ray tracing capability, a feature absent from the B300's spec sheet. Its dimensions, 167 mm by 69 mm by 20 mm, make it a compact dual-slot card that fits in standard workstation chassis.

The benchmark data confirms the split. The B300 has one win in the head-to-head comparison, the RTX PRO 2000 has zero. But the RTX PRO 2000's additional benchmarks, such as Passmark G3D at 20,049 and Passmark GPU Compute at 8,396, show it can handle a range of professional tasks, even if its average score of 25,269 places it near mobile workstation parts. The B300 has no such benchmarks recorded, only the OpenCL result. The database indicates that these GPUs serve different markets, and the correct choice depends entirely on whether the workload is rack-mounted compute or desktop professional graphics.