NVIDIA RTX PRO 5000 Blackwell vs NVIDIA Rubin GPU Comparison

The NVIDIA RTX PRO 5000 Blackwell and the NVIDIA Rubin GPU occupy different extremes of the current hardware landscape. The RTX PRO 5000 Blackwell is a workstation card built on the Blackwell 2.0 architecture, while the Rubin GPU is a server-class compute module built on the Rubin architecture. The recorded data shows no shared benchmark scores, meaning direct performance comparisons are not possible. Instead, the analysis must focus on their respective positions in the database, their architectural traits, and the specification fields where they differ.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the NVIDIA RTX PRO 5000 Blackwell and the NVIDIA Rubin GPU. The head-to-head array is empty, and the win counters for both items are zero. The RTX PRO 5000 Blackwell has three recorded benchmark scores, while the Rubin GPU has none. The Rubin GPU’s average benchmark score is recorded as 0, and its percentile versus all GPUs is 50. The RTX PRO 5000 Blackwell, by contrast, has an average benchmark score of 182,109, placing it in the 98th percentile of all GPUs.

The RTX PRO 5000 Blackwell’s individual benchmark results are as follows. In 3DMark Steel Nomad DX12, it scores 9,579.5 points. In Geekbench OpenCL, it scores 254,116 points. In Geekbench Vulkan, it scores 282,631 points. These three results contribute to its average score of 182,109. The nearest rivals for the RTX PRO 5000 Blackwell, based on average score, include the NVIDIA A100 SXM4 80 GB, which has an average score of 183,725 and a delta percentage of -0.9, meaning the RTX PRO 5000 Blackwell trails it by 0.9%. The NVIDIA RTX 5000 Ada Generation has an average score of 184,664, with a delta percentage of -1.4, indicating the RTX PRO 5000 Blackwell is 1.4% behind. The NVIDIA GeForce RTX 4090 D has an average score of 178,050, with a delta percentage of 2.3, meaning the RTX PRO 5000 Blackwell leads it by 2.3%. The NVIDIA A100 SXM4 40 GB has an average score of 187,147, with a delta percentage of -2.7, showing the RTX PRO 5000 Blackwell trails by 2.7%.

These delta percentages show a tight cluster. The RTX PRO 5000 Blackwell sits within roughly 3% of four other high-end NVIDIA accelerators. The largest recorded gap is the 2.7% deficit versus the A100 SXM4 40 GB, while the largest lead is 2.3% over the GeForce RTX 4090 D. The data does not support any claim of a dominant win for the RTX PRO 5000 Blackwell in this peer group. It is competitive, but not decisively ahead of any listed rival.

For the Rubin GPU, the absence of benchmark data means no wins can be claimed. Its percentile of 50 and average score of 0 are placeholder values in the database, not measurements from any test. The head-to-head section remains empty, so any statement about relative performance between these two items is unsupported by the recorded data.

The Verdict

The data indicates that the NVIDIA RTX PRO 5000 Blackwell is the only one of the two with measurable benchmark performance. Its three scores, average of 182,109, and 98th percentile placement show it as a high-performing workstation GPU. The Rubin GPU has no recorded benchmarks, no rivals, and a placeholder percentile of 50. For any workload that relies on the tests present in the database, the RTX PRO 5000 Blackwell is the only option with evidence of capability.

The choice between these two items depends entirely on the use case defined by the specifications. The RTX PRO 5000 Blackwell, with its 48 GB of GDDR7 memory, 1.34 TB/s bandwidth, and 66.94 TFLOPS FP32 performance, suits tasks that require general-purpose graphics and compute with established API support. Its API list includes DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, all of which are absent from the Rubin GPU, where the APIs are listed as N/A. The RTX PRO 5000 Blackwell also has display outputs, specifically 4x DisplayPort 2.1b, while the Rubin GPU has no outputs.

The Rubin GPU, on the other hand, is built for massive-scale server compute. Its 288 GB of HBM4 memory, 22.1 TB/s bandwidth, and 130.0 TFLOPS FP32 performance are far above the RTX PRO 5000 Blackwell in raw capacity and throughput. Its 896 tensor cores double the RTX PRO 5000 Blackwell’s 440, and its FP16 performance of 260.0 TFLOPS at a 2:1 ratio is nearly four times the RTX PRO 5000 Blackwell’s 66.94 TFLOPS at 1:1. The Rubin GPU also uses a 3 nm process node versus the 5 nm node of the RTX PRO 5000 Blackwell, and it has a 1,456 mm² die size with 336,000 million transistors, compared to the RTX PRO 5000 Blackwell’s 750 mm² die and 92,200 million transistors.

The verdict from the data is straightforward. For a workstation with graphics output, software rendering, and compatibility with existing DX12, OpenGL, and Vulkan applications, the RTX PRO 5000 Blackwell is the only viable choice. For a server module focused purely on compute density, memory capacity, and tensor throughput, the Rubin GPU offers specifications that the RTX PRO 5000 Blackwell cannot match. Neither item can substitute for the other in its intended role, and the absence of shared benchmarks means no direct performance verdict is possible.

Architecture Differences

The architecture names differ entirely. The RTX PRO 5000 Blackwell uses the Blackwell 2.0 architecture, built on the GB202 chip. The Rubin GPU uses the Rubin architecture, built on the GR100 chip. The process nodes differ: the RTX PRO 5000 Blackwell is fabricated on a 5 nm TSMC process, while the Rubin GPU is on a 3 nm TSMC process. The foundry is the same, TSMC, but the node shrinks from 5 nm to 3 nm.

Transistor counts show a large gap. The RTX PRO 5000 Blackwell has 92,200 million transistors on a 750 mm² die, giving a transistor density of 122.9 million per square millimeter. The Rubin GPU has 336,000 million transistors on a 1,456 mm² die, with a density of 230.8 million per square millimeter. The Rubin GPU more than triples the transistor count and nearly doubles the density.

Core counts also diverge. The RTX PRO 5000 Blackwell has 14,080 shading units, 440 TMUs, and 160 ROPs. The Rubin GPU has 28,672 shading units, 896 TMUs, and only 24 ROPs. The shading unit count for the Rubin GPU is roughly double, and the TMU count is double, but the ROP count is dramatically lower. The RTX PRO 5000 Blackwell also has 110 RT cores, while the Rubin GPU has no recorded RT core count, listed as null. Both have tensor cores, with the RTX PRO 5000 Blackwell at 440 and the Rubin GPU at 896.

Memory architecture differs by generation and interface. The RTX PRO 5000 Blackwell uses GDDR7 memory on a 384-bit bus, while the Rubin GPU uses HBM4 on a 16,384-bit bus. The memory size is 48 GB versus 288 GB, and bandwidth is 1.34 TB/s versus 22.1 TB/s. The pixel rates show a notable inversion: the RTX PRO 5000 Blackwell delivers 380.3 GPixel/s, while the Rubin GPU delivers 54.41 GPixel/s, consistent with the ROP discrepancy. Texture rates favor the Rubin GPU, at 2,031.2 GTexel/s versus 1,045.9 GTexel/s.

FP32 and FP16 performance also differ in ratio. The RTX PRO 5000 Blackwell has 66.94 TFLOPS FP32 and 66.94 TFLOPS FP16 at a 1:1 ratio. The Rubin GPU has 130.0 TFLOPS FP32 and 260.0 TFLOPS FP16 at a 2:1 ratio, showing a deliberate bias toward FP16 workloads.

Specification Differences

The two items differ in nearly every specification field. The process node is 5 nm for the RTX PRO 5000 Blackwell and 3 nm for the Rubin GPU. The chip is GB202 versus GR100. The architecture is Blackwell 2.0 versus Rubin. The generation is listed as Blackwell PRO W (x000) for the RTX PRO 5000 Blackwell and Server Rubin (Rxx) for the Rubin GPU.

Clock speeds differ. The RTX PRO 5000 Blackwell has a base clock of 1,740 MHz and a boost clock of 2,377 MHz. The Rubin GPU has a base clock of 700 MHz and a boost clock of 2,267 MHz. The memory clocks are 1,750 MHz with 28 Gbps effective for the RTX PRO 5000 Blackwell, versus 2,695 MHz with 10.8 Gbps effective for the Rubin GPU.

Memory specifications are widely different. The RTX PRO 5000 Blackwell has 48 GB of GDDR7 with a 384-bit bus and 1.34 TB/s bandwidth. The Rubin GPU has 288 GB of HBM4 with a 16,384-bit bus and 22.1 TB/s bandwidth.

The RTX PRO 5000 Blackwell has 14,080 shading units, 440 TMUs, 160 ROPs, 110 RT cores, and 440 tensor cores. The Rubin GPU has 28,672 shading units, 896 TMUs, 24 ROPs, no recorded RT core count, and 896 tensor cores.

Pixel rate is 380.3 GPixel/s for the RTX PRO 5000 Blackwell and 54.41 GPixel/s for the Rubin GPU. Texture rate is 1,045.9 GTexel/s versus 2,031.2 GTexel/s. FP32 is 66.94 TFLOPS versus 130.0 TFLOPS. FP16 is 66.94 TFLOPS at 1:1 versus 260.0 TFLOPS at 2:1.

Power figures differ. The RTX PRO 5000 Blackwell has a TDP of 300 W, while the Rubin GPU has a TDP of 2,300 W. The suggested PSU is 700 W for the RTX PRO 5000 Blackwell and 2,700 W for the Rubin GPU.

Form factor and connectivity also differ. The RTX PRO 5000 Blackwell is dual-slot with a 1x 16-pin power connector, a PCIe 5.0 x16 bus interface, and 4x DisplayPort 2.1b outputs. The Rubin GPU is an SXM Module with no power connector listed, a PCIe 6.0 x16 bus interface, and no display outputs. The RTX PRO 5000 Blackwell has physical dimensions of 267 mm length, 111 mm height, and 40 mm width. The Rubin GPU has no recorded dimensions.

API support is present for the RTX PRO 5000 Blackwell, with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Rubin GPU has N/A for all three APIs.

Release dates differ. The RTX PRO 5000 Blackwell has a release date of 2025-03-17, while the Rubin GPU has a release date of 2025-12-31. The RTX PRO 5000 Blackwell has a launch MSRP of 5,099 USD, while the Rubin GPU has no launch MSRP recorded.

FAQ

Q: Which GPU has more memory bandwidth?

A: The NVIDIA Rubin GPU has 22.1 TB/s bandwidth, while the NVIDIA RTX PRO 5000 Blackwell has 1.34 TB/s.

Q: What is the FP32 performance of each GPU?

A: The NVIDIA RTX PRO 5000 Blackwell delivers 66.94 TFLOPS FP32, and the NVIDIA Rubin GPU delivers 130.0 TFLOPS FP32.

Q: Does the NVIDIA Rubin GPU support DirectX 12 Ultimate?

A: No. The Rubin GPU lists DirectX as N/A, while the RTX PRO 5000 Blackwell supports DirectX 12 Ultimate (12_2).

Q: How many tensor cores does each GPU have?

A: The NVIDIA RTX PRO 5000 Blackwell has 440 tensor cores, and the NVIDIA Rubin GPU has 896 tensor cores.

Q: What is the memory capacity difference?

A: The NVIDIA RTX PRO 5000 Blackwell has 48 GB of GDDR7 memory, and the NVIDIA Rubin GPU has 288 GB of HBM4 memory.

Q: Which GPU has display outputs?

A: The NVIDIA RTX PRO 5000 Blackwell has 4x DisplayPort 2.1b outputs, while the NVIDIA Rubin GPU has no outputs.