NVIDIA RTX PRO 4500 Blackwell Server

NVIDIA’s RTX PRO 4500 Blackwell Server card is a single-slot, 165 W PCIe 5.0 x16 accelerator built for server environments where density and predictable power draw matter more than raw multi-GPU scaling. Based on the GB203 chip on TSMC’s 5 nm process, it packs 45,600 million transistors into a 378 mm² die, with a transistor density of 120.6M per mm². The card has no display outputs, no benchmarks listed, and no nearest rivals in the data, so this analysis focuses strictly on its architectural capabilities, power profile, and memory subsystem as specified.

Benchmark Performance

The FACT PACK lists no benchmark scores for this card, and the average benchmark score is 0, with a percentile rank of 50 against all GPUs. That percentile means the card sits at the median of the entire GPU database, but without any actual benchmark entries, that rank is a placeholder rather than a measured result. The data shows zero entries for nearest rivals, so no direct percentage deltas can be calculated. What can be analyzed is the raw compute throughput, which serves as a theoretical ceiling for real-world workloads.

The FP32 performance is 50.70 TFLOPS, and FP16 is also 50.70 TFLOPS with a 1:1 ratio. That 1:1 ratio is notable because it means there is no half-rate penalty for FP16 workloads; the card delivers identical throughput for both precision levels. For server workloads that mix single-precision simulation with half-precision AI inference layers, this eliminates a common bottleneck. The pixel rate is 270.5 GPixel/s, driven by 112 ROPs, and the texture rate is 792.1 GTexel/s from 328 TMUs. These figures place the card in a high-throughput category for rasterization, but with no display outputs, that pixel rate is relevant only for compute-driven rendering tasks like offscreen ray tracing or batch image processing.

The shading units total 10,496, which is a large count for a 165 W envelope. In practical terms, this suggests the card is designed for throughput-per-watt rather than peak single-threaded performance. The boost clock is 2415 MHz, with a base clock of 1215 MHz, the wide gap between base and boost indicates aggressive thermal and power management, common in server cards that must fit into dense chassis. Without benchmark scores, the best interpretation is that the card’s compute density is high for its power class, but the lack of measured data means performance claims must remain speculative.

Power and Cooling

The TDP is 165 W, which is remarkably low for a card with 10,496 shaders and 50.70 TFLOPS FP32. This TDP figure directly influences cooling requirements: the card is single-slot, with dimensions of 267 mm length, 111 mm height, and 40 mm width. A single-slot design at 165 W is feasible with a capable air cooler, but in a server context, it likely relies on directed airflow from chassis fans rather than a large axial fan. The power connector is 1x 16-pin, which is the modern PCIe 5.0 power standard, and the suggested PSU rating is 450 W.

That 450 W suggested PSU is well above the 165 W TDP, leaving headroom for the rest of the system, but it also reflects the transient power spikes that 16-pin connectors can draw. For a server with multiple such cards, the cumulative power draw must be calculated from the TDP, not the suggested PSU. The card has no display outputs, so it does not contribute to any video signal generation, which means all power goes to compute. The 1:1 FP16/FP32 ratio also means power draw scales predictably with workload type, there is no separate FP16 boost mode that would spike consumption. The 5 nm process node from TSMC is a key enabler of the 165 W figure; at 45,600 million transistors, the density is 120.6M per mm², which is high, but the moderate clock speeds (1215 MHz base, 2415 MHz boost) keep voltage and current in check.

For cooling, the single-slot width means the card cannot dissipate heat via a massive heatsink. The 40 mm thickness forces a low-profile cooler, so server chassis with high static pressure fans are the intended environment. The 267 mm length is standard for server cards, fitting most 1U or 2U chassis with horizontal mounting. The 111 mm height also aligns with PCIe bracket standards, so no custom mounting is required.

Ray Tracing and Feature Set

The RTX PRO 4500 Blackwell Server includes 82 RT cores and 328 tensor cores. These are dedicated hardware units for ray tracing and AI acceleration, respectively. The RT cores enable hardware-accelerated ray tracing, which is relevant for server-side rendering tasks like architectural visualization, film production, or scientific visualizations that use ray-traced light transport. The 82 RT cores are not the highest count in the stack, but they are paired with 50.70 TFLOPS of FP32 compute, so hybrid workloads that mix ray tracing with shading have balanced resources.

The 328 tensor cores support AI inference and training workloads. The 1:1 FP16 ratio means tensor core operations that feed on FP16 data do not need to convert to a lower precision for throughput parity; the card can handle FP16 tensor ops at the same rate as FP32 shader ops. This is particularly useful for transformer-based models that use FP16 as a default precision. The tensor cores also support the Blackwell 2.0 architecture, which is the generation name for this chip. The architecture, named Blackwell 2.0, follows the Server Hopper generation and precedes Server Rubin. The API support is comprehensive: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. DirectX 12 Ultimate includes ray tracing support via DXR, and Vulkan 1.4 also includes ray tracing extensions, so the card is compatible with both major low-level APIs.

The API list is the only software feature set provided; there is no mention of specific AI libraries, CUDA version, or driver-level features like DLSS. The RT cores and tensor cores are the hardware basis for those features, but without benchmark data, the actual performance in ray tracing or AI workloads cannot be quantified. The lack of display outputs also means that any ray tracing work must be offscreen or headless, which is typical for server rendering farms.

FAQ

Q: What is the TDP of the NVIDIA RTX PRO 4500 Blackwell Server?

A: The TDP is 165 W, and the suggested PSU rating is 450 W. The card uses a single 1x 16-pin power connector.

Q: How much memory does this card have, and what type?

A: It has 32 GB of GDDR7 memory on a 256-bit bus, with a bandwidth of 800.3 GB/s. The memory clock is 1563 MHz, which is 25 Gbps effective.

Q: Does this card support ray tracing?

A: Yes, it has 82 RT cores for hardware-accelerated ray tracing. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which include ray tracing APIs.

Q: What is the FP32 performance of this card?

A: The FP32 performance is 50.70 TFLOPS, and the FP16 performance is also 50.70 TFLOPS with a 1:1 ratio.

Q: Is this card suitable for a desktop PC?

A: No, it has no display outputs, so it cannot drive a monitor. It is designed for server environments with headless compute workloads.

Q: What process node is this card built on?

A: It is built on TSMC’s 5 nm process, with a die size of 378 mm² and 45,600 million transistors.

How It Compares

The FACT PACK lists no nearest rivals for this card, so there are no direct comparison scores, deltas, or percentile differences to report. The percentile rank of 50 against all GPUs indicates a median position, but without rival names or benchmark scores, the comparison is void. The predecessor is listed as Server Hopper, and the successor is Server Rubin, but no performance data is provided for either. This means the card must be evaluated on its own specifications rather than relative to other products. The architecture name is Blackwell 2.0, which is the second-generation Blackwell implementation, but there is no sibling card data to compare against. For context, the 50.70 TFLOPS FP32 figure and 800.3 GB/s bandwidth are the only measurable indicators, and they suggest a card positioned between entry-level and flagship server accelerators, but the exact position cannot be quantified. The lack of rivals also means no power-per-performance comparisons can be made.

Memory Subsystem

The memory configuration is 32 GB of GDDR7 on a 256-bit bus, with a bandwidth of 800.3 GB/s. The memory clock is 1563 MHz, which translates to 25 Gbps effective. This bandwidth is the key number for high-resolution or large-dataset workloads. For 32 GB of VRAM, the 800.3 GB/s bandwidth provides a balanced ratio: large models or high-resolution textures can be stored entirely in VRAM, and the bandwidth prevents the GPU from stalling while fetching data. In server contexts, this matters for AI inference where model weights are several gigabytes, or for rendering where scenes exceed 16 GB of geometry data.

The 256-bit bus width is narrower than what some flagship cards use, but GDDR7 compensates with high effective data rates. The 25 Gbps effective speed is the latest generation of memory, so the 800.3 GB/s figure is competitive even with wider buses on older memory types. For high resolutions, such as 8K rendering or multi-monitor offscreen canvases, the 32 GB capacity ensures that no swapping occurs, and the bandwidth supports sustained throughput. The FP32 compute of 50.70 TFLOPS can process data faster than 800.3 GB/s can feed it in some workloads, but this is normal, the memory bandwidth is rarely the absolute bottleneck in compute-heavy tasks. The 1:1 FP16 ratio also doubles the effective precision throughput without additional memory traffic, since FP16 data occupies half the space per value. This means the memory subsystem is well-matched for mixed-precision workloads that alternate between FP32 and FP16, as the bandwidth can handle both without reconfiguration. The 32 GB capacity is also future-proof for large language models or batch processing, but the 165 W TDP limits how aggressively the memory can be clocked during sustained loads.

Who Should Consider It

The RTX PRO 4500 Blackwell Server is for organizations that need high compute density in a low-power, single-slot form factor. The 165 W TDP means multiple cards can fit in a chassis without exceeding power budgets, and the single-slot width allows for dense packing. The 50.70 TFLOPS FP32 performance is sufficient for simulation, scientific computing, and general-purpose GPU workloads that require double-precision or single-precision math. The 32 GB VRAM with 800.3 GB/s bandwidth is ideal for datasets that exceed 16 GB but do not require the capacity of 48 GB or 64 GB cards. The lack of display outputs means this is not for desktop users; it is strictly for server racks or external GPU enclosures that operate headless.

For AI inference, the 328 tensor cores and 1:1 FP16 ratio make this card suitable for running medium-sized transformer models in production. The 32 GB capacity can hold models up to roughly 8 billion parameters in FP16, assuming no overhead, which is a common serving size. The 800.3 GB/s bandwidth ensures batch inference does not bottleneck on memory. For ray tracing workloads, the 82 RT cores provide hardware acceleration, but the 165 W TDP suggests that RT-heavy scenes with complex lighting will run at slower speeds than on higher-power cards. The card is better suited for pre-rendered frames or offline rendering where time is not critical, rather than real-time interactive ray tracing. The DirectX 12 Ultimate and Vulkan 1.4 support mean it can run cross-platform rendering engines, but only in headless mode.

The card is also a candidate for virtualization or cloud gaming servers that need to partition GPU resources. The 32 GB memory can be split across multiple virtual machines, and the 10,496 shading units provide ample compute per virtual GPU. However, the lack of display outputs means any virtual desktop must use network streaming, not direct video output. The 5 nm process and 165 W TDP make it attractive for power-constrained data centers where cooling is limited. The single-slot design also simplifies cabling and airflow management. If the workload requires more than 50.70 TFLOPS FP32 or more than 32 GB memory, this card will fall short, and the user should look at higher-tier server accelerators. Conversely, if the workload is light enough to run on lower-power cards, the 165 W TDP might be overkill, but the compute density of 50.70 TFLOPS in a single slot is a strong argument for consolidation.