NVIDIA RTX PRO 6000 Blackwell Server vs NVIDIA Rubin GPU Comparison

Head-to-Head Benchmarks

The recorded database contains no shared benchmark entries for the NVIDIA RTX PRO 6000 Blackwell Server and the NVIDIA Rubin GPU. The RTX PRO 6000 Blackwell Server has a single benchmark result: a 3DMark Steel Nomad DX12 score of 5996. This places it at the 34th percentile among all GPUs in the database. The Rubin GPU has no benchmark scores recorded, leaving its percentile at 50 by default rather than by measurement. Direct numerical comparison is therefore impossible, but the available data reveals a stark contrast in positioning.

The RTX PRO 6000 Blackwell Server's 3DMark score of 5996 sits remarkably close to four nearest rivals. The NVIDIA GeForce GTX 770M averages 6000, a delta of -0.1 percent, meaning the RTX PRO 6000 trails by a negligible margin. The AMD Radeon RX 6400 also scores 6001, again a -0.1 percent difference. On the other side, the AMD FirePro W4100 averages 5987, where the RTX PRO 6000 leads by 0.2 percent, and the NVIDIA Quadro K4000M scores 5986, also a 0.2 percent advantage. These deltas are trivial, suggesting that in this single DirectX 12 test, the RTX PRO 6000 Blackwell Server performs nearly identically to older, lower-tier mobile and entry-level workstation cards. This is an unusual outcome for a server-class GPU with 24,064 shading units and a 600 W power envelope, indicating the benchmark may not exercise the card's strengths or that the workload is heavily compute-limited in ways that favor smaller chips.

The Rubin GPU's empty benchmark array means the database cannot confirm any performance figure for it. Its 50th percentile rank appears to be a placeholder, not a measured result. The lack of head-to-head tests, combined with zero wins for either product in the winsA and winsB fields, reinforces that these two accelerators target different evaluation paths. The RTX PRO 6000 Blackwell Server was measured in a consumer-oriented 3DMark workload, while the Rubin GPU has no such data, likely because it is designed for a different class of computation where rasterization benchmarks are irrelevant.

Given the absence of shared tests, the only quantitative interpretation comes from the RTX PRO 6000's single score and its rival deltas. The data shows that in 3DMark Steel Nomad DX12, the RTX PRO 6000 Blackwell Server sits in a tight cluster of results from 5986 to 6001, a spread of only 15 points. This narrow band indicates that, at least in this one metric, the card's raw shading throughput does not translate into a meaningful advantage over far less powerful hardware. The Rubin GPU, with no recorded scores, cannot be positioned relative to any rival or to the RTX PRO 6000 based on measured performance.

FAQ

Q: What benchmark score does the NVIDIA RTX PRO 6000 Blackwell Server have in the database?

A: The only recorded benchmark is 3DMark Steel Nomad DX12, where it scores 5996, placing it at the 34th percentile among all GPUs.

Q: Does the NVIDIA Rubin GPU have any benchmark results?

A: No. The Rubin GPU's benchmark array is empty, and its average benchmark score is listed as 0, with a default 50th percentile that does not reflect a measured result.

Q: How does the RTX PRO 6000 Blackwell Server compare to its nearest rivals in the database?

A: It is nearly tied with four rivals: it trails the NVIDIA GeForce GTX 770M by 0.1 percent (5996 vs 6000) and the AMD Radeon RX 6400 by 0.1 percent (5996 vs 6001), while leading the AMD FirePro W4100 by 0.2 percent (5996 vs 5987) and the NVIDIA Quadro K4000M by 0.2 percent (5996 vs 5986).

Q: What are the memory specifications for each GPU?

A: The RTX PRO 6000 Blackwell Server has 96 GB of GDDR7 on a 512-bit bus with 1.79 TB/s bandwidth. The Rubin GPU has 288 GB of HBM4 on a 16384-bit bus with 22.1 TB/s bandwidth.

Q: Which GPU has higher FP32 and FP16 throughput?

A: The RTX PRO 6000 Blackwell Server delivers 126.0 TFLOPS FP32 and 126.0 TFLOPS FP16 (1:1 ratio). The Rubin GPU delivers 130.0 TFLOPS FP32 and 260.0 TFLOPS FP16 (2:1 ratio), meaning the Rubin GPU is marginally ahead in FP32 and twice as fast in FP16.

Q: What are the power and interface differences?

A: The RTX PRO 6000 Blackwell Server has a 600 W TDP, dual-slot design, one 16-pin connector, and uses PCIe 5.0 x16. The Rubin GPU has a 2300 W TDP, an SXM Module form factor, no display outputs, and uses PCIe 6.0 x16. The suggested PSU for the RTX PRO 6000 is 1000 W, while the Rubin GPU requires 2700 W.

Architecture Differences

The two GPUs come from different architectural generations and foundry processes. The RTX PRO 6000 Blackwell Server uses the GB202 chip built on Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. The Rubin GPU uses the GR100 chip on the Rubin architecture, fabricated on a 3 nm process, also at TSMC. This process shrink from 5 nm to 3 nm allows for a substantially larger and denser chip. The GB202 die measures 750 mm² and contains 92,200 million transistors, yielding a density of 122.9 million transistors per mm². The GR100 die is far larger at 1456 mm², with 336,000 million transistors, resulting in a density of 230.8 million per mm². The Rubin GPU's transistor count is over 3.6 times that of the Blackwell chip, despite only a 1.94 times increase in die area, which explains the much higher transistor density.

The memory architecture also diverges sharply. The RTX PRO 6000 Blackwell Server uses GDDR7 memory with a 512-bit bus, while the Rubin GPU uses HBM4 with a 16384-bit bus. The bus width difference is enormous: 16,384 bits versus 512 bits, a 32-fold increase. This directly impacts bandwidth, with the Rubin GPU reaching 22.1 TB/s compared to 1.79 TB/s on the RTX PRO 6000. The memory size difference is also notable, 288 GB versus 96 GB, which reflects the Rubin GPU's server-centric design where large memory pools are essential for AI training and inference workloads.

The rendering pipelines show significant structural differences. The RTX PRO 6000 Blackwell Server has 188 ray tracing cores, while the Rubin GPU lists no RT core count in the database. The tensor core counts are 752 on the RTX PRO 6000 and 896 on the Rubin GPU. Shading units are 24,064 versus 28,672, and texture mapping units are 752 versus 896. The most striking divergence is in ROPs: the RTX PRO 6000 has 192 ROPs, while the Rubin GPU has only 24. This leads to a pixel rate of 502.5 GPixel/s on the RTX PRO 6000 versus just 54.41 GPixel/s on the Rubin GPU, a 9.2 times difference. The texture rates are closer, with the RTX PRO 6000 at 1,968.0 GTexel/s and the Rubin GPU at 2,031.2 GTexel/s, meaning the Rubin GPU is slightly ahead in texture throughput.

The FP32 and FP16 compute ratios also differ. The RTX PRO 6000 Blackwell Server provides equal FP32 and FP16 throughput at 126.0 TFLOPS each, indicating a 1:1 ratio. The Rubin GPU offers 130.0 TFLOPS FP32 but 260.0 TFLOPS FP16, a 2:1 ratio. This suggests the Rubin GPU is optimized for mixed-precision workloads where FP16 is dominant, while the RTX PRO 6000 maintains a more balanced profile.

Specification Differences

The two GPUs differ across nearly every measurable specification. The process node changes from 5 nm to 3 nm. Transistor count goes from 92,200 million to 336,000 million. Die size expands from 750 mm² to 1456 mm². Transistor density increases from 122.9M per mm² to 230.8M per mm².

Clock speeds are lower on the Rubin GPU: base clock is 700 MHz versus 1590 MHz, and boost clock is 2267 MHz versus 2617 MHz. Memory clock differs as well, with the RTX PRO 6000 at 1750 MHz (28 Gbps effective) and the Rubin GPU at 2695 MHz (10.8 Gbps effective), though the effective rates are misleading given the different memory types.

Memory capacity jumps from 96 GB GDDR7 to 288 GB HBM4. Bus width goes from 512 bit to 16384 bit. Bandwidth increases from 1.79 TB/s to 22.1 TB/s. Shading units rise from 24,064 to 28,672. TMUs increase from 752 to 896. ROPs drop dramatically from 192 to 24. RT cores are present on the RTX PRO 6000 at 188, while the Rubin GPU has no listed RT cores. Tensor cores grow from 752 to 896.

Pixel rate falls from 502.5 GPixel/s to 54.41 GPixel/s. Texture rate rises slightly from 1,968.0 GTexel/s to 2,031.2 GTexel/s. FP32 TFLOPS goes from 126.0 to 130.0. FP16 TFLOPS doubles from 126.0 to 260.0, but the ratio changes from 1:1 to 2:1.

TDP escalates from 600 W to 2300 W. The slot width changes from dual-slot to SXM Module. The RTX PRO 6000 uses one 16-pin power connector, while the Rubin GPU has no listed power connectors. Suggested PSU rises from 1000 W to 2700 W. Bus interface advances from PCIe 5.0 x16 to PCIe 6.0 x16. Display outputs go from 4x DisplayPort 2.1b to no outputs. DirectX support changes from 12 Ultimate (12_2) to N/A, OpenGL from 4.6 to N/A, and Vulkan from 1.4 to N/A.

Physical dimensions are only recorded for the RTX PRO 6000: 267 mm length, 111 mm height, 40 mm width. The Rubin GPU has no dimensions listed. Release dates differ, with the RTX PRO 6000 launching on 2025-03-17 and the Rubin GPU on 2025-12-31. The predecessor and successor relationships are captured: the RTX PRO 6000 succeeds Server Hopper and is succeeded by Server Rubin, while the Rubin GPU succeeds Server Blackwell and has no successor listed.

The Verdict

The recorded data points to two very different products serving different roles. The RTX PRO 6000 Blackwell Server is the only one with an actual benchmark score, 5996 in 3DMark Steel Nomad DX12, which places it at the 34th percentile. Its nearest rivals are all low-end or older GPUs with scores within 15 points, indicating that in this particular rasterization workload, it does not demonstrate a performance advantage over those much less capable cards. The 188 RT cores, 192 ROPs, and 1.79 TB/s bandwidth suggest it is designed for graphics and visualization tasks, but the benchmark data does not support a claim of superiority in that specific test.

The Rubin GPU has no benchmark data at all. Its specifications, however, tell a clear story: 288 GB of HBM4, 22.1 TB/s bandwidth, 896 tensor cores, 260 TFLOPS FP16, and a 2300 W TDP. These are not graphics-oriented numbers. The low ROP count of 24 and the absence of display outputs confirm that this is a compute accelerator, not a renderer. The absence of DirectX, OpenGL, and Vulkan support in the API fields reinforces this interpretation.

For a buyer or system integrator choosing between these two, the data says the RTX PRO 6000 Blackwell Server is the only option with measured graphics performance, albeit a modest one in the 3DMark Steel Nomad test. The Rubin GPU is positioned for massive parallel compute workloads, particularly those that benefit from enormous memory bandwidth and FP16 throughput, but no benchmark exists in the database to quantify its actual performance. The verdict is therefore conditional: if the workload is rasterization or ray tracing, the RTX PRO 6000 has the only available evidence. If the workload is large-scale AI or HPC compute, the Rubin GPU's specifications indicate it is built for that purpose, but the database offers no measured confirmation.

Where Each One Wins

The RTX PRO 6000 Blackwell Server wins in graphics-oriented scenarios based on the data. It has 192 ROPs versus the Rubin GPU's 24, giving it a pixel rate of 502.5 GPixel/s compared to 54.41 GPixel/s. This is a 9.2 times advantage in pixel throughput. It also has 188 ray tracing cores, which the Rubin GPU lacks entirely. The display outputs (4x DisplayPort 2.1b) and API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 mean it can drive monitors and run standard graphics applications, while the Rubin GPU has no outputs and no graphics API support. The lower TDP of 600 W also makes it more feasible for air-cooled dual-slot installations.

The Rubin GPU wins in compute-heavy and memory-bound workloads. Its 288 GB of HBM4 with 22.1 TB/s bandwidth dwarfs the RTX PRO 6000's 96 GB GDDR7 at 1.79 TB/s. The bandwidth difference is 12.3 times in favor of the Rubin GPU. Its 896 tensor cores exceed the 752 on the RTX PRO 6000, and its FP16 throughput of 260.0 TFLOPS is more than double the 126.0 TFLOPS on the RTX PRO 6000. The FP32 rate of 130.0 TFLOPS is slightly higher than 126.0 TFLOPS. The 16,384-bit memory bus is 32 times wider, and the 336,000 million transistors provide substantially more compute resources. The PCIe 6.0 x16 interface offers a newer generation of host connectivity compared to PCIe 5.0 x16.

The texture rate is nearly identical, with the Rubin GPU at 2,031.2 GTexel/s versus 1,968.0 GTexel/s, a marginal 3.2 percent difference. This means in texture-heavy workloads, the two are effectively matched. The base and boost clocks are lower on the Rubin GPU, but the larger core count compensates in most compute metrics except pixel output. The SXM Module form factor and 2300 W TDP indicate the Rubin GPU is intended for dense server racks with dedicated power delivery, while the RTX PRO 6000's dual-slot and 16-pin connector suit more conventional server or workstation chassis.