NVIDIA GB10 vs NVIDIA RTX PRO 4500 Blackwell Workstation Comparison

NVIDIA’s GB10 and RTX PRO 4500 Blackwell Workstation both sit on the Blackwell 2.0 architecture and a 5 nm TSMC process, but the database shows they are built for fundamentally different roles. The GB10 is a server-oriented part with a massive 128 GB memory pool and a modest 140 W TDP, while the RTX PRO 4500 is a dual-slot workstation card with 32 GB of GDDR7, a 200 W TDP, and full API support. The recorded data gives the GB10 a clear lead in average benchmark scores, but the RTX PRO 4500 counters with far higher pixel throughput, FP32 compute, and memory bandwidth. The question is not which is faster overall, but which workload profile each card serves best.

The Verdict

The GB10 is the pick for memory-bound, compute-heavy server tasks where capacity outweighs raw speed. Its 128 GB LPDDR5X frame buffer, 95th percentile ranking among all GPUs, and average benchmark score of 117,393 put it ahead of the RTX PRO 4500 in the only direct performance metric the database records. The GB10’s nearest rivals include the AMD Radeon PRO W7700 (average score 118,976, 1.3% ahead), the NVIDIA RTX 4000 SFF Ada Generation (117,088, 0.3% behind), and the Tesla V100 SXM2 16 GB (114,395, 2.6% behind). These deltas show the GB10 sits in a competitive band, but its 128 GB capacity is the differentiator that no rival in this list matches.

The RTX PRO 4500 is the pick for rasterization-heavy workstation graphics, interactive rendering, and display-centric workflows. Its 269.6 GPixel/s pixel rate, 50.53 TFLOPS FP32, and 896.0 GB/s memory bandwidth all exceed the GB10’s corresponding figures by wide margins. The RTX PRO 4500 also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the GB10 lists no API support, which effectively rules out the GB10 for conventional desktop or workstation graphics applications. The RTX PRO 4500’s 50th percentile ranking reflects the absence of benchmark entries in the database, not its capability; the recorded specifications indicate a purpose-built graphics card, whereas the GB10 is a compute-first server part.

Architecture Differences

Both chips share the Blackwell 2.0 architecture and TSMC 5 nm node, but their physical designs diverge sharply. The GB10 uses the GB20B chip with a die size of 382 mm², while the RTX PRO 4500 uses the GB203 at 378 mm². The RTX PRO 4500’s transistor count is recorded at 45,600 million with a density of 120.6M per mm², while the GB10’s transistor count is listed as unknown. The GB10 has more texture mapping units (384 versus 328) and more tensor cores (384 versus 328), but the RTX PRO 4500 has more shading units (10,496 versus 6,144), more ROPs (112 versus 48), and more ray tracing cores (82 versus 48).

Memory architecture separates the two most clearly. The GB10 uses 128 GB of LPDDR5X on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The RTX PRO 4500 uses 32 GB of GDDR7 on the same 256-bit bus, but achieves 896.0 GB/s, more than three times the bandwidth. Clock speeds are similar: the GB10 runs at 1665 MHz base and 2418 MHz boost, while the RTX PRO 4500 runs at 1635 MHz base and 2407 MHz boost. Memory clocks differ more, with the GB10 at 1067 MHz (8.5 Gbps effective) and the RTX PRO 4500 at 1750 MHz (28 Gbps effective).

Physical and power profiles also differ. The GB10 is an integrated graphics package (IGP) with no power connectors, a 140 W TDP, and a suggested PSU of 300 W. The RTX PRO 4500 is a dual-slot card with a single 16-pin connector, a 200 W TDP, and a suggested PSU of 550 W. The GB10 measures 150 mm in length and 51 mm in height, while the RTX PRO 4500 is longer at 267 mm and taller at 111 mm. Display outputs differ as well: the GB10 offers one HDMI port, while the RTX PRO 4500 provides four DisplayPort 2.1b connectors.

FAQ

Q: Which card has more memory?

A: The GB10 has 128 GB of LPDDR5X, while the RTX PRO 4500 has 32 GB of GDDR7.

Q: Which card delivers higher memory bandwidth?

A: The RTX PRO 4500 records 896.0 GB/s, versus 273.2 GB/s for the GB10.

Q: Which card has higher FP32 compute?

A: The RTX PRO 4500 is rated at 50.53 TFLOPS, while the GB10 is rated at 29.71 TFLOPS.

Q: Does the GB10 support DirectX or Vulkan?

A: No, the database lists DirectX, OpenGL, and Vulkan as N/A for the GB10. The RTX PRO 4500 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: Which card has better benchmark scores?

A: The GB10 records a Geekbench OpenCL score of 120,137 and a Vulkan score of 114,648, with an average of 117,393. The RTX PRO 4500 has no benchmark entries, so its average score is 0.

Q: What are the power requirements?

A: The GB10 has a 140 W TDP and needs a 300 W PSU, while the RTX PRO 4500 has a 200 W TDP and needs a 550 W PSU.

Specification Differences

The two cards differ across nearly every measured field. Memory size: 128 GB versus 32 GB. Memory type: LPDDR5X versus GDDR7. Memory bandwidth: 273.2 GB/s versus 896.0 GB/s. Shading units: 6,144 versus 10,496. TMUs: 384 versus 328. ROPs: 48 versus 112. Ray tracing cores: 48 versus 82. Tensor cores: 384 versus 328. Pixel rate: 116.1 GPixel/s versus 269.6 GPixel/s. Texture rate: 928.5 GTexel/s versus 789.5 GTexel/s. FP32: 29.71 TFLOPS versus 50.53 TFLOPS. FP16: 29.71 TFLOPS versus 50.53 TFLOPS. TDP: 140 W versus 200 W. Slot width: IGP versus dual-slot. Power connectors: none versus one 16-pin. Suggested PSU: 300 W versus 550 W. Display outputs: 1x HDMI versus 4x DisplayPort 2.1b. Dimensions: 150 mm length, 51 mm height versus 267 mm length, 111 mm height.

Base clocks are close, with the GB10 at 1665 MHz and the RTX PRO 4500 at 1635 MHz. Boost clocks are also close, at 2418 MHz and 2407 MHz respectively. DIe size differs slightly, at 382 mm² for the GB10 and 378 mm² for the RTX PRO 4500. The RTX PRO 4500 has a recorded transistor count of 45,600 million and a density of 120.6M per mm², while the GB10’s transistor count is unknown. Release dates differ: the GB10 launched 2025-10-14, while the RTX PRO 4500 launched 2025-03-17. The GB10 has a launch MSRP of 3,999 USD, while the RTX PRO 4500 has no recorded launch MSRP.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two cards, and the RTX PRO 4500 has no individual benchmark entries at all. The GB10, however, has two recorded scores: 120,137 on Geekbench OpenCL and 114,648 on Geekbench Vulkan. These produce an average benchmark score of 117,393, which places the GB10 in the 95th percentile of all GPUs. The RTX PRO 4500 sits in the 50th percentile with an average score of 0, purely because no benchmark runs are recorded for it.

The GB10’s nearest rival comparisons show it performs within a narrow band. It trails the AMD Radeon PRO W7700 by 1.3%, leads the NVIDIA RTX 4000 SFF Ada Generation by 0.3%, leads the Tesla V100 SXM2 16 GB by 2.6%, and leads the RTX A5500 Mobile by 3%. These deltas indicate the GB10 is competitive with established workstation and server cards, but the absence of RTX PRO 4500 benchmarks means no direct score comparison is possible.

The closest comparison available is through specification-derived rates. The RTX PRO 4500’s FP32 of 50.53 TFLOPS is 70% higher than the GB10’s 29.71 TFLOPS. Its pixel rate of 269.6 GPixel/s more than doubles the GB10’s 116.1 GPixel/s. Its memory bandwidth of 896.0 GB/s is 228% higher than the GB10’s 273.2 GB/s. These are not benchmark scores, but they indicate the RTX PRO 4500 would likely dominate in fill-rate-bound and bandwidth-bound workloads if measured.

Where Each One Wins

The GB10 wins on memory capacity, with 128 GB versus 32 GB, making it the stronger choice for large model inference, in-memory databases, or any workload where fitting an entire dataset in VRAM is critical. It also wins on texture rate, at 928.5 GTexel/s versus 789.5 GTexel/s, and on tensor core count, at 384 versus 328. The GB10 wins on energy efficiency in terms of absolute power draw, using 140 W versus 200 W, and it requires no power connectors, making it far easier to integrate into dense server configurations. Its average benchmark score of 117,393 and 95th percentile ranking show it performs well in compute tests, and its launch MSRP of 3,999 USD provides a reference point for its positioning.

The RTX PRO 4500 wins on raw compute throughput, with 50.53 TFLOPS FP32 and FP16, versus 29.71 TFLOPS for the GB10. It wins decisively on memory bandwidth, at 896.0 GB/s versus 273.2 GB/s, which matters for real-time rendering and high-resolution texture streaming. It wins on pixel rate, at 269.6 GPixel/s versus 116.1 GPixel/s, and on ROP count, at 112 versus 48. It also wins on shading units, at 10,496 versus 6,144, and ray tracing cores, at 82 versus 48. The RTX PRO 4500 provides four DisplayPort 2.1b outputs, while the GB10 offers only a single HDMI port, making the RTX PRO 4500 the clear choice for multi-display workstation setups.

For API support, the RTX PRO 4500 is the only one of the two with DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, meaning it can run standard graphics applications and game engines. The GB10 lists no API support, which confines it to compute-oriented server tasks that do not rely on those graphics interfaces. The RTX PRO 4500 also has a higher suggested PSU requirement of 550 W, but that is a consequence of its higher TDP and dual-slot cooler design.

In use-case terms, the GB10 is for memory-capacity-driven compute workloads, such as large-scale data processing or AI inference with massive model footprints, where its 128 GB pool and 273.2 GB/s bandwidth are sufficient and its low 140 W power draw is an advantage. The RTX PRO 4500 is for graphics-intensive workstation tasks, such as CAD, video editing, or real-time 3D rendering, where its 269.6 GPixel/s fill rate, 896.0 GB/s bandwidth, and full graphics API support are essential. The data shows a clear split: the GB10 leads in memory capacity and compute benchmark scores, while the RTX PRO 4500 leads in every throughput-oriented specification.