Asus ROG Astral GeForce RTX 5090 OC Edition VS Nvidia RTX Pro 4500 Blackwell

The most telling performance story here is raw compute throughput. The Asus ROG Astral RTX 5090 OC delivers 112.3 TFLOPS of floating-point performance versus 54.94 TFLOPS on the Nvidia RTX Pro 4500 Blackwell — roughly a 2x lead. This gap is structural, not incidental: the RTX 5090 packs 21,760 shading units against the Pro 4500's 10,496, meaning it simply has twice the parallel compute fabric. In practice, this translates to significantly higher frame rates in rasterized games, faster AI inference in GPU-accelerated workloads, and greater headroom for real-time ray tracing at high resolutions.

The texture and pixel pipelines tell the same story. With a texture rate of 1,754 GTexels/s (versus 858.4) and a pixel fill rate of 454.1 GPixel/s (versus 293.1), the RTX 5090 can push substantially more geometry and shading detail per second — directly relevant to ultra-high-resolution rendering. One nuance worth noting: the RTX Pro 4500 actually edges out a marginally higher GPU turbo clock of 2,617 MHz versus 2,580 MHz, but this minor peak-clock advantage is effectively drowned out by the Pro 4500's far smaller shader array. Both cards share an identical GPU memory speed of 1,750 MHz and both support Double Precision Floating Point (DPFP), which is meaningful for scientific or CAD workloads — though the RTX 5090's larger shader count will still produce higher absolute DPFP throughput.

Based strictly on the provided specs, the RTX 5090 OC holds a decisive performance advantage in every throughput-oriented metric. The RTX Pro 4500 Blackwell is not designed to compete on raw gaming or consumer compute performance — it is a professional-tier card with a leaner, power-efficient configuration. Users prioritizing maximum rendering speed, AI workloads, or high-framerate gaming should consider the RTX 5090 the clear winner here; those with workstation-specific requirements may find the Pro 4500's architecture more appropriate for their use case, but not on performance grounds alone.

Both the Asus ROG Astral GeForce RTX 5090 OC Edition and Nvidia RTX Pro 4500 Blackwell share some similarities in their memory specifications, but they differ in a few key areas. Both products have the same effective memory speed of 28000 MHz, and they both feature 32GB of VRAM and utilize GDDR7 memory. Additionally, both support ECC (Error-Correcting Code) memory.

However, the memory bandwidth differs significantly between the two. The Asus ROG offers a much higher maximum memory bandwidth at 1790 GB/s, compared to the Nvidia RTX Pro 4500's 896 GB/s. This means the Asus ROG can handle more data throughput in memory-intensive tasks.

Another area of difference is the memory bus width. The Asus ROG comes with a 512-bit memory bus width, which is wider than the Nvidia model's 256-bit memory bus width. A wider memory bus allows for greater data transfer rates, further enhancing the overall memory performance of the Asus ROG compared to the Nvidia RTX Pro 4500.

The Asus ROG Astral GeForce RTX 5090 OC Edition and Nvidia RTX Pro 4500 Blackwell share several similar features, with a few differences. Both products support DirectX 12, but the Asus ROG supports the more advanced DirectX 12 Ultimate version, while the Nvidia model supports only DirectX 12. Both also support OpenGL version 4.6 and OpenCL version 3, as well as multi-display technology, ray tracing, 3D support, and DLSS.

One key distinction is the RGB lighting feature; the Asus ROG includes RGB lighting, whereas the Nvidia RTX Pro 4500 does not. Another difference is in the supported displays—while both products can support up to four displays, the Nvidia model has no mention of RGB lighting, while the Asus ROG does.

Additionally, both products support Intel Resizable BAR (AMD SAM / Intel Resizable BAR), and neither has LHR (Lite Hash Rate). Both models also lack support for XeSS (XMX), as indicated by the absence of this feature in both product specs.

The Asus ROG Astral GeForce RTX 5090 OC Edition and Nvidia RTX Pro 4500 Blackwell differ in their available ports. The Asus ROG model has one HDMI output and three DisplayPort outputs, but does not feature any USB-C, DVI, or mini DisplayPort outputs.

In contrast, the Nvidia RTX Pro 4500 does not include an HDMI output, but it offers four DisplayPort outputs. Like the Asus ROG, the Nvidia model also lacks USB-C, DVI, and mini DisplayPort outputs.

In summary, the key difference between the two models is that the Asus ROG provides one HDMI output, while the Nvidia model offers an additional DisplayPort output, but lacks HDMI support.

Both the Asus ROG Astral GeForce RTX 5090 OC Edition and Nvidia RTX Pro 4500 Blackwell share the same GPU architecture, Blackwell, and the same PCI Express (PCIe) version, 5. Both products also use a 5 nm semiconductor size. However, they differ significantly in other general specs.

The Asus ROG has a much higher Thermal Design Power (TDP) of 575W, compared to the Nvidia RTX Pro 4500's 200W. This indicates a greater power consumption and potentially more demanding cooling requirements for the Asus model. Both products do not feature air-water cooling systems.

In terms of physical dimensions, the Asus ROG is larger, measuring 357.6 mm in width and 149.3 mm in height, while the Nvidia model is smaller with a width of 266.7 mm and a height of 111.8 mm. Additionally, the Asus ROG has significantly more transistors, with 92,200 million compared to the 45,600 million in the Nvidia RTX Pro 4500.