NVIDIA B200 SXM6 vs NVIDIA RTX PRO 4500 Blackwell Comparison

FAQ

Q: What are the core architectural differences between the NVIDIA B200 SXM6 and the NVIDIA RTX PRO 4500 Blackwell?

A: The B200 SXM6 uses the GB100 chip with a 5 nm process and 208,000 million transistors on a 1628 mm² die. The RTX PRO 4500 uses the GB203 chip, also on 5 nm, with 45,600 million transistors on a 378 mm² die. The B200 is part of the Server Blackwell (Bxx) generation, while the RTX PRO 4500 belongs to the Blackwell PRO W (x000) generation and uses Blackwell 2.0 architecture.

Q: How do the memory subsystems compare?

A: The B200 SXM6 features 180 GB of HBM3e memory on an 8192-bit bus with 8.19 TB/s bandwidth. The RTX PRO 4500 has 32 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth. The B200's memory bandwidth is roughly 9.1 times higher.

Q: Which card has higher clock speeds?

A: The RTX PRO 4500 runs at a base clock of 1635 MHz and a boost clock of 2407 MHz. The B200 SXM6 has a much lower base clock of 120 MHz but a boost clock of 1830 MHz. The RTX PRO 4500's boost clock is 577 MHz higher.

Q: What is the difference in power requirements?

A: The B200 SXM6 has a TDP of 1000 W with a suggested PSU of 1400 W. The RTX PRO 4500 has a TDP of 200 W with a suggested PSU of 550 W. The B200 consumes five times the power of the RTX PRO 4500.

Q: Do both cards support the same APIs?

A: No. The RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The B200 SXM6 lists N/A for DirectX, OpenGL, and Vulkan, indicating no display or graphics API support.

Q: What are the physical form factor differences?

A: The B200 SXM6 is an SXM Module with no display outputs. The RTX PRO 4500 is a Dual-slot card measuring 267 mm in length, 111 mm in height, and 40 mm in width, with 4x DisplayPort 2.1b outputs.

Where Each One Wins

The B200 SXM6 is built for server-scale compute workloads. Its 180 GB HBM3e memory pool and 8.19 TB/s bandwidth dominate any task requiring massive data residency. The 8192-bit bus width allows the GPU to feed 592 tensor cores without memory bottlenecks. The B200's FP32 throughput of 69.34 TFLOPS exceeds the RTX PRO 4500's 50.53 TFLOPS by 37%. For large language model training, scientific simulation, or inference on huge batches, the B200's memory capacity and bandwidth are decisive.

The RTX PRO 4500 wins in workstation and professional visualization scenarios. It delivers 269.6 GPixel/s pixel fill rate versus the B200's 43.92 GPixel/s, a 5.1 times advantage. The RTX PRO 4500 has 112 ROPs compared to only 24 on the B200. It also includes 82 RT cores, whereas the B200 lists none. Display outputs on the RTX PRO 4500 enable direct monitor connectivity, which the B200 lacks entirely. The RTX PRO 4500 also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it suitable for real-time rendering and DCC applications.

The RTX PRO 4500 has a 76th percentile ranking among all GPUs, based on an average benchmark score of 31532. Its nearest rivals include the NVIDIA TITAN RTX at 31676 (0.5% slower), the Intel Arc Pro A30M at 31894 (1.1% slower), and the NVIDIA GRID M60-1Q at 31220 (1% faster). The B200 SXM6 has no recorded benchmarks, no average score, and a 50th percentile ranking, which reflects its absence from standard consumer benchmark suites rather than its compute capability.

Architecture Differences

The B200 SXM6 uses the GB100 chip, designed for data center acceleration. It packs 208,000 million transistors into a 1628 mm² die, yielding a transistor density of 127.8 million per square millimeter. The architecture is Blackwell, part of the Server Blackwell (Bxx) generation. The chip relies on HBM3e memory with a 2000 MHz memory clock and 8 Gbps effective data rate. The B200 has no display outputs and no graphics API support, confirming its role as a pure compute accelerator.

The RTX PRO 4500 uses the GB203 chip with 45,600 million transistors on a 378 mm² die, giving a density of 120.6 million per square millimeter. It uses Blackwell 2.0 architecture and belongs to the Blackwell PRO W (x000) generation. The memory clock is 1750 MHz with 28 Gbps effective data rate over GDDR7. This chip retains full graphics functionality with 4x DisplayPort 2.1b outputs. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The predecessor for the RTX PRO 4500 is Workstation Ada, while the B200's predecessor is Server Hopper and its successor is Server Rubin.

The B200 has 18,944 shading units, 592 TMUs, and 24 ROPs. The RTX PRO 4500 has 10,496 shading units, 328 TMUs, and 112 ROPs. Both have 592 tensor cores on the B200 and 328 tensor cores on the RTX PRO 4500. The B200's texture rate is 1,083.4 GTexel/s versus 789.5 GTexel/s for the RTX PRO 4500. The B200's pixel rate is 43.92 GPixel/s versus 269.6 GPixel/s for the RTX PRO 4500.

The RTX PRO 4500 includes 82 RT cores, which the B200 does not list. This makes the RTX PRO 4500 capable of hardware-accelerated ray tracing, while the B200 focuses on tensor and compute workloads. The B200 uses a PCIe 6.0 x16 interface, while the RTX PRO 4500 uses PCIe 5.0 x16. The B200 has a base clock of 120 MHz and a boost clock of 1830 MHz. The RTX PRO 4500 has a base clock of 1635 MHz and a boost clock of 2407 MHz.

Specification Differences

The B200 SXM6 and RTX PRO 4500 differ across nearly every major specification. The B200 uses the GB100 chip, while the RTX PRO 4500 uses GB203. The B200 has 208,000 million transistors on a 1628 mm² die; the RTX PRO 4500 has 45,600 million transistors on a 378 mm² die. Transistor density is 127.8M per mm² for the B200 and 120.6M per mm² for the RTX PRO 4500.

Memory capacity is 180 GB HBM3e for the B200 versus 32 GB GDDR7 for the RTX PRO 4500. Bus width is 8192 bit versus 256 bit. Bandwidth is 8.19 TB/s versus 896.0 GB/s. Memory clock is 2000 MHz (8 Gbps effective) for the B200 and 1750 MHz (28 Gbps effective) for the RTX PRO 4500.

The B200 has 18,944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores. The RTX PRO 4500 has 10,496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. FP32 performance is 69.34 TFLOPS for the B200 and 50.53 TFLOPS for the RTX PRO 4500, both with 1:1 FP16 ratios.

Pixel rate is 43.92 GPixel/s for the B200 and 269.6 GPixel/s for the RTX PRO 4500. Texture rate is 1,083.4 GTexel/s for the B200 and 789.5 GTexel/s for the RTX PRO 4500. TDP is 1000 W for the B200 and 200 W for the RTX PRO 4500. Suggested PSU is 1400 W versus 550 W.

The B200 is an SXM Module with no power connector listed, no display outputs, and no supported APIs. The RTX PRO 4500 is a Dual-slot card with a 1x 16-pin power connector, 4x DisplayPort 2.1b outputs, and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The B200 measures no listed dimensions; the RTX PRO 4500 measures 267 mm by 111 mm by 40 mm. The B200 uses PCIe 6.0 x16; the RTX PRO 4500 uses PCIe 5.0 x16. The B200 was released on 2024-10-31 with a launch MSRP of 34,999 USD. The RTX PRO 4500 was released on 2025-03-17 with no launch MSRP listed.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the B200 SXM6 and the RTX PRO 4500. The B200 SXM6 has no recorded benchmark scores, no average score, and no nearest rivals. The RTX PRO 4500 has nine recorded benchmark scores and four nearest rivals.

The RTX PRO 4500's recorded benchmarks show a 3DMark Steel Nomad DX12 score of 7025, a Geekbench Vulkan score of 221768, and a Passmark G3D score of 33360. Its Passmark GPU Compute score is 19255. DirectX 9, 10, 11, and 12 Passmark scores are 397, 204, 320, and 119 respectively. The Passmark G2D score is 1336.

The RTX PRO 4500's average benchmark score is 31532, placing it at the 76th percentile among all GPUs. Its closest rival is the NVIDIA TITAN RTX with an average score of 31676, which is 0.5% slower. The Intel Arc Pro A30M scores 31894, which is 1.1% slower. The NVIDIA GRID M60-1Q scores 31220, which is 1% faster. The NVIDIA Quadro M5000 scores 31206, also 1% faster.

Without direct comparison data, the specification differences provide the clearest signal. The B200 delivers 37% higher FP32 throughput, 9.1 times higher memory bandwidth, and 5.6 times more memory capacity. The RTX PRO 4500 delivers 5.1 times higher pixel rate, 4.7 times more ROPs, and includes RT cores that the B200 lacks. The B200's 592 tensor cores versus 328 on the RTX PRO 4500 indicates a 1.8 times advantage in tensor throughput potential, though no tensor benchmark scores are recorded.

The B200's 69.34 TFLOPS FP32 output exceeds the RTX PRO 4500's 50.53 TFLOPS by 18.81 TFLOPS. The B200's texture rate of 1,083.4 GTexel/s is 37% higher than the RTX PRO 4500's 789.5 GTexel/s. The RTX PRO 4500's boost clock of 2407 MHz is 31.5% higher than the B200's 1830 MHz boost clock.

The RTX PRO 4500's nearest rival comparison shows it sits within a narrow band of 1.1% around 31500 average score. The TITAN RTX at 31676 and the Arc Pro A30M at 31894 are slightly faster, while the GRID M60-1Q and Quadro M5000 are slightly slower. This clustering indicates the RTX PRO 4500 performs at a consistent level among mid-range workstation GPUs. The B200's absence from benchmark databases reflects its data center positioning, where standard consumer and workstation benchmarks do not apply.