NVIDIA RTX PRO 5000 72 GB Blackwell vs NVIDIA Rubin GPU Comparison

NVIDIA RTX PRO 5000 72 GB Blackwell is a professional workstation card built on the Blackwell 2.0 architecture, while the NVIDIA Rubin GPU is a server-class compute module based on the newer Rubin architecture. The database records show the RTX PRO 5000 with a full set of DirectX and PassMark benchmark scores, while the Rubin GPU currently has no recorded benchmark results, making direct performance comparisons limited to architectural and specification analysis.

FAQ

Q: What architecture does each GPU use?

A: The RTX PRO 5000 72 GB Blackwell uses the Blackwell 2.0 architecture with a GB202 chip, while the Rubin GPU uses the Rubin architecture with a GR100 chip.

Q: How much memory does each GPU have?

A: The RTX PRO 5000 has 72 GB of GDDR7 memory with a 384-bit bus, while the Rubin GPU has 288 GB of HBM4 memory with a 16384-bit bus.

Q: Which GPU has higher FP32 compute?

A: The Rubin GPU delivers 130.0 TFLOPS FP32, which is nearly double the 66.94 TFLOPS of the RTX PRO 5000.

Q: What is the power consumption difference?

A: The RTX PRO 5000 has a TDP of 300 W, while the Rubin GPU has a TDP of 2300 W, a substantial difference reflecting their different market positions.

Q: Does the Rubin GPU have display outputs?

A: No, the Rubin GPU has no display outputs, while the RTX PRO 5000 offers 4x DisplayPort 2.1b outputs.

Q: What is the process node for each?

A: The RTX PRO 5000 uses a 5 nm process from TSMC, while the Rubin GPU uses a more advanced 3 nm process, also from TSMC.

Architecture Differences

The two GPUs represent fundamentally different design targets. The RTX PRO 5000 is built on the Blackwell 2.0 architecture with a GB202 chip manufactured on a 5 nm TSMC process. It contains 92,200 million transistors on a 750 mm² die, yielding a transistor density of 122.9M per mm². The Rubin GPU, in contrast, uses the Rubin architecture with a GR100 chip on a 3 nm TSMC process, packing 336,000 million transistors onto a 1456 mm² die, resulting in a density of 230.8M per mm².

The shading unit counts differ significantly. The RTX PRO 5000 has 14,080 shading units, 440 TMUs, and 160 ROPs. It also includes 110 RT cores and 440 tensor cores. The Rubin GPU doubles the shading units to 28,720, with 896 TMUs but only 24 ROPs, a much lower ROP count. The Rubin GPU has 896 tensor cores and no specified RT cores in the recorded data.

Memory architecture diverges sharply. The RTX PRO 5000 uses 72 GB of GDDR7 on a 384-bit bus, delivering 1.34 TB/s bandwidth. The Rubin GPU uses 288 GB of HBM4 on a 16384-bit bus, providing 22.1 TB/s, over 16 times the bandwidth. Clock speeds also differ: the RTX PRO 5000 runs at 1740 MHz base and 2377 MHz boost, while the Rubin GPU has a lower 700 MHz base but a comparable 2267 MHz boost.

The FP16 compute ratios differ. The RTX PRO 5000 achieves 66.94 TFLOPS FP16 with a 1:1 ratio to FP32, while the Rubin GPU delivers 260.0 TFLOPS FP16 with a 2:1 ratio, indicating stronger mixed-precision throughput. The Rubin GPU uses a PCIe 6.0 x16 interface, while the RTX PRO 5000 uses PCIe 5.0 x16.

The Verdict

The data clearly separates these two products into different roles. The RTX PRO 5000 is a workstation GPU with display outputs, DirectX 12 Ultimate support, OpenGL 4.6, and Vulkan 1.4, making it suitable for graphics and professional visualization workloads. Its 300 W TDP and dual-slot form factor with a 16-pin power connector fit conventional workstation configurations, with a suggested PSU of 700 W.

The Rubin GPU is a server compute module in an SXM form factor with no display outputs. It has no DirectX, OpenGL, or Vulkan API support in the recorded data, confirming its compute-only orientation. Its 2300 W TDP and 2700 W suggested PSU indicate a data-center-class deployment. The Rubin GPU's 288 GB HBM4 memory and 22.1 TB/s bandwidth are designed for massive data throughput, not interactive graphics.

Benchmark results only exist for the RTX PRO 5000. The database shows a 3DMark Steel Nomad DX12 score of 9579.5, PassMark G3D score of 24310, and PassMark GPU compute score of 15667. The Rubin GPU has no recorded benchmarks, so its average benchmark score is 0, and no percentile or rival comparisons are available. The RTX PRO 5000 sits at the 37th percentile among all GPUs with an average benchmark score of 6407.

For users needing a workstation GPU with graphics APIs and display connectivity, the RTX PRO 5000 is the only option with recorded support. For compute-heavy server workloads, the Rubin GPU's architecture points toward higher raw compute, but the absence of benchmark data prevents any performance validation.

Specification Differences

The two GPUs differ in nearly every recorded specification. The chip designations are GB202 versus GR100. The architecture is Blackwell 2.0 versus Rubin. The process node is 5 nm versus 3 nm. Transistor counts are 92,200 million versus 336,000 million, and die sizes are 750 mm² versus 1456 mm². Transistor density is 122.9M per mm² versus 230.8M per mm².

Base clocks are 1740 MHz versus 700 MHz, while boost clocks are 2377 MHz versus 2267 MHz. Memory clocks are 1750 MHz (28 Gbps effective) versus 2695 MHz (10.8 Gbps effective). Memory size is 72 GB versus 288 GB, type is GDDR7 versus HBM4, bus width is 384 bit versus 16384 bit, and bandwidth is 1.34 TB/s versus 22.1 TB/s.

Shading units are 14,080 versus 28,720. TMUs are 440 versus 896. ROPs are 160 versus 24. RT cores are 110 versus no recorded value. Tensor cores are 440 versus 896. Pixel rates are 380.3 GPixel/s versus 54.41 GPixel/s. Texture rates are 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 versus 260.0 TFLOPS.

TDP is 300 W versus 2300 W. Slot width is dual-slot versus SXM module. Power connectors are 1x 16-pin versus none. Suggested PSU is 700 W versus 2700 W. Bus interface is PCIe 5.0 x16 versus PCIe 6.0 x16. Display outputs are 4x DisplayPort 2.1b versus no outputs. API support includes DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 for the RTX PRO 5000, while the Rubin GPU has N/A for all three.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two GPUs, and the wins counters show 0 for both. The Rubin GPU has an empty benchmark array, meaning no scores have been recorded for any test. The RTX PRO 5000 has eight recorded benchmark scores, but without corresponding Rubin scores, direct comparisons are impossible.

The RTX PRO 5000's benchmark data shows its performance profile. In 3DMark Steel Nomad DX12, it scores 9579.5. PassMark results include DirectX 10 at 175, DirectX 11 at 219, DirectX 12 at 78, DirectX 9 at 311, G2D at 914, G3D at 24310, and GPU compute at 15667. These scores place it at the 37th percentile among all GPUs, with an average benchmark score of 6407.

The nearest rivals in the database, based on average score, are the NVIDIA GeForce GTX 460 SE and NVIDIA GeForce GTX 580M, both with an average score of 6389 and a delta of 0.3 percent. The AMD Radeon Vega 10 Mobile has an average score of 6476 with a delta of -1.1 percent, and the NVIDIA Quadro M5000M has an average score of 6481 with a delta of -1.1 percent. These rivals are all significantly less powerful in theoretical compute, indicating that the RTX PRO 5000's benchmark results may underrepresent its capabilities relative to its specifications.

Where Each One Wins

The RTX PRO 5000 wins in graphics-oriented capabilities. It has display outputs, DirectX 12 Ultimate support, OpenGL 4.6, and Vulkan 1.4, making it functional for interactive graphics, rendering, and visualization. Its 160 ROPs and 380.3 GPixel/s pixel rate are far higher than the Rubin GPU's 24 ROPs and 54.41 GPixel/s, which is critical for rasterization workloads. The RTX PRO 5000 also wins on power efficiency per the recorded data, with a 300 W TDP versus 2300 W, and a 700 W suggested PSU versus 2700 W.

The Rubin GPU wins in raw compute and memory throughput. Its FP32 compute of 130.0 TFLOPS is 94 percent higher than the RTX PRO 5000's 66.94 TFLOPS. Its FP16 compute of 260.0 TFLOPS is nearly four times the RTX PRO 5000's 66.94 TFLOPS. The 288 GB HBM4 memory with 22.1 TB/s bandwidth provides 16.5 times the bandwidth of the RTX PRO 5000's 1.34 TB/s, and the memory capacity is four times larger. The Rubin GPU also has more tensor cores at 896 versus 440, and double the texture rate at 2,031.2 GTexel/s versus 1,045.9 GTexel/s.

The Rubin GPU's 28,720 shading units are more than double the RTX PRO 5000's 14,080, and its 896 TMUs are over double the 440 TMUs of the RTX PRO 5000. The transistor count of 336,000 million on the Rubin GPU is 3.6 times the RTX PRO 5000's 92,200 million, though the RTX PRO 5000 achieves a higher pixel rate due to its workstation-oriented ROP configuration.

The release dates in the database show the RTX PRO 5000 launched on 2025-10-20, while the Rubin GPU is dated 2025-12-31. Both are listed as Active in production status. The Rubin GPU's predecessor is Server Blackwell, while the RTX PRO 5000's predecessor is Workstation Ada, reinforcing their separate product lines.

For compute-heavy server workloads, the Rubin GPU is the clear choice based on its architecture. For workstation graphics and professional visualization, the RTX PRO 5000 is the only option with recorded software support. The lack of benchmark data for the Rubin GPU means its real-world performance remains unverified, while the RTX PRO 5000 has a complete set of recorded scores across multiple test suites.