AMD Radeon PRO W7900 vs NVIDIA RTX A4500 Mobile Comparison

AMD Radeon PRO W7900 vs NVIDIA RTX A4500 Mobile

The AMD Radeon PRO W7900 and NVIDIA RTX A4500 Mobile are professional graphics solutions aimed at distinct deployment scenarios: a triple-slot desktop card for maximum compute density versus a mobile component for portable workstations. The benchmark data reveals a stark split: the NVIDIA RTX A4500 Mobile leads in OpenCL compute workloads, while the AMD Radeon PRO W7900 dominates in Vulkan performance by a massive margin. Across the two available head-to-head tests, each card claims one victory, yet the magnitude of those wins is asymmetrical, with the AMD card’s Vulkan advantage being nearly four times larger than NVIDIA’s OpenCL lead.

Head-to-Head Benchmarks

In the Geekbench OpenCL test, the NVIDIA RTX A4500 Mobile posts a score of 105307, defeating the AMD Radeon PRO W7900’s 84379 by a delta of 19.9%. This is a substantial gap for a compute API that is widely used in rendering, scientific simulation, and machine learning frameworks. The NVIDIA card’s OpenCL result also sits comfortably above its own average benchmark score of 91134, suggesting this workload aligns well with its architecture. Meanwhile, the AMD Radeon PRO W7900’s OpenCL score of 84379 is notably below its average of 110725, indicating that OpenCL is not a favorable API for this GPU — the card underperforms its own baseline by roughly 24% in this specific test.

The Vulkan results flip the narrative decisively. The AMD Radeon PRO W7900 achieves a score of 137070, which is 78.1% higher than the NVIDIA RTX A4500 Mobile’s 76960. This is an enormous performance delta, and it positions the AMD card as the clear choice for Vulkan-based applications, which include many modern game engines, CAD visualizers, and cross-platform compute stacks. Interestingly, the AMD card’s Vulkan score is also 24% above its average benchmark score, while the NVIDIA card’s Vulkan result is 15.5% below its average. The NVIDIA RTX A4500 Mobile’s Vulkan performance is its weak point, whereas the AMD Radeon PRO W7900 excels there.

Looking at the broader average benchmark scores, the AMD Radeon PRO W7900 has an average of 110725 across all tests, compared to the NVIDIA RTX A4500 Mobile’s 91134 — a 21.5% advantage for AMD. However, this average is skewed by the Vulkan outlier. The nearest rivals data provides additional context. The AMD Radeon PRO W7900’s closest competitor is the NVIDIA RTX A5500 Mobile, which scores 113944, a 2.8% lead over AMD. The AMD card also trails the NVIDIA Tesla V100 SXM2 16 GB by 3.2% but leads the AMD Radeon Pro Vega II by 1% and the AMD Radeon Pro W6600X by 3.2%. For the NVIDIA RTX A4500 Mobile, its nearest rival is the NVIDIA RTX A4500 (desktop), which scores 91671, just 0.6% higher. The mobile card also edges out the AMD Radeon Instinct MI60 by 1.4%, the NVIDIA Quadro GP100 by 4.2%, and the AMD Radeon PRO W7600 by 4.6%.

Where Each One Wins

The NVIDIA RTX A4500 Mobile wins in OpenCL compute, which is critical for legacy scientific code, certain rendering pipelines, and AI inference workloads that rely on this API. Its OpenCL score of 105307 is 19.9% ahead of AMD’s, and it also outperforms its own average by 15.5%, indicating consistent strength in this area. For professionals running OpenCL-heavy applications — such as medical imaging, financial modeling, or physics simulations — the NVIDIA card offers a clear performance benefit. Additionally, the NVIDIA RTX A4500 Mobile includes 184 tensor cores, a feature absent from the AMD Radeon PRO W7900’s spec sheet, making it better suited for AI and deep learning tasks that leverage Tensor Core acceleration.

The AMD Radeon PRO W7900 wins decisively in Vulkan, with a 78.1% lead over the NVIDIA card. This makes it the superior choice for any workload built on Vulkan, including real-time ray tracing in DXR-based engines, modern game development, and cross-platform graphics. The AMD card’s Vulkan score of 137070 is also 24% above its average, showing that this API unlocks its full potential. Furthermore, the AMD Radeon PRO W7900 has significantly higher raw throughput metrics: 61.32 TFLOPS FP32 versus 17.66 TFLOPS for NVIDIA, and a texture rate of 958.1 GTexel/s versus 276.0 GTexel/s. While these figures don’t directly translate to every benchmark, they indicate a hardware ceiling that is roughly 3.5 times higher for compute-heavy tasks — though the OpenCL results show that real-world API efficiency can override raw specs.

Architecture Differences

The architectural divide between these two GPUs is substantial. The AMD Radeon PRO W7900 uses the Navi 31 chip on the RDNA 3.0 architecture, fabricated on TSMC’s 5 nm process. This node packs 57,700 million transistors into a 529 mm² die, yielding a transistor density of 109.1M per mm². In contrast, the NVIDIA RTX A4500 Mobile uses the GA104 chip on the Ampere architecture, built on Samsung’s 8 nm process, with 17,400 million transistors on a 392 mm² die — a density of just 44.4M per mm². The AMD card’s newer, denser process gives it a fundamental efficiency and scaling advantage, but the NVIDIA card’s lower transistor count also means lower power draw and heat output.

Memory configurations differ sharply. The AMD Radeon PRO W7900 offers 48 GB of GDDR6 on a 384-bit bus, delivering 864.0 GB/s of bandwidth. The NVIDIA RTX A4500 Mobile has 16 GB of GDDR6 on a 256-bit bus, with 512.0 GB/s of bandwidth. For large datasets — such as high-resolution textures, massive point clouds, or multi-GPU rendering scenes — the AMD card’s 3x memory capacity and 68.75% higher bandwidth are decisive. The AMD card also has more execution resources: 6144 shading units, 384 TMUs, and 192 ROPs, versus NVIDIA’s 5888 shading units, 184 TMUs, and 96 ROPs. Notably, the AMD card doubles NVIDIA’s ROP count, which directly impacts pixel fill rate: 479.0 GPixel/s for AMD versus 144.0 GPixel/s for NVIDIA.

Ray tracing hardware also differentiates them. The AMD Radeon PRO W7900 has 96 ray tracing cores, while the NVIDIA RTX A4500 Mobile has 46 RT cores — a 2.1x advantage for AMD in RT core count. However, NVIDIA compensates with 184 tensor cores, which AMD lacks entirely. Clock speeds are also divergent: the AMD card runs at a base of 1760 MHz and boosts to 2495 MHz, while the NVIDIA card operates at 930 MHz base and 1500 MHz boost. This 66% higher boost clock on AMD contributes to its massive FP32 throughput. Process node differences explain part of this: RDNA 3.0 on 5 nm allows higher clocks at lower power per transistor, while Ampere on 8 nm is more constrained.

The Verdict

The data supports a clear division of labor. Choose the NVIDIA RTX A4500 Mobile for OpenCL-based compute workloads and any AI or deep learning tasks that benefit from its 184 tensor cores. Its 19.9% OpenCL advantage over AMD is significant, and its lower 140 W TDP makes it suitable for portable workstations where power and thermal budgets are tight. The NVIDIA card also edges out its nearest rival, the desktop RTX A4500, by 0.6% in average score, showing that the mobile version loses little performance to its desktop counterpart. For professionals in scientific computing, data analytics, or machine learning inference, the NVIDIA card’s tensor cores and OpenCL performance are compelling.

Choose the AMD Radeon PRO W7900 for Vulkan-centric workloads, ultra-high-resolution rendering, and any task requiring massive memory capacity. Its 78.1% Vulkan lead over NVIDIA is overwhelming, and its 48 GB VRAM is triple the NVIDIA card’s 16 GB. The AMD card also has a 21.5% higher average benchmark score (110725 vs 91134) and sits at the 94th percentile of all GPUs compared to NVIDIA’s 93rd. However, its 295 W TDP and triple-slot design require a desktop chassis with ample cooling and a 600 W power supply. For Vulkan-based game development, real-time visualization, or GPU compute with large datasets, the AMD Radeon PRO W7900 is the data-backed winner.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon PRO W7900 has an average benchmark score of 110725, which is 21.5% higher than the NVIDIA RTX A4500 Mobile’s 91134.

Q: How much faster is the AMD Radeon PRO W7900 in Vulkan?

A: The AMD Radeon PRO W7900 scores 137070 in Geekbench Vulkan, which is 78.1% higher than the NVIDIA RTX A4500 Mobile’s 76960.

Q: What is the memory capacity difference between the two cards?

A: The AMD Radeon PRO W7900 has 48 GB of GDDR6 memory on a 384-bit bus, while the NVIDIA RTX A4500 Mobile has 16 GB on a 256-bit bus. The AMD card also offers 864.0 GB/s bandwidth versus 512.0 GB/s for NVIDIA.

Q: Does the NVIDIA RTX A4500 Mobile have tensor cores?

A: Yes, the NVIDIA RTX A4500 Mobile includes 184 tensor cores, while the AMD Radeon PRO W7900 does not list any tensor cores in its specifications.

Q: Which GPU has a higher transistor density?

A: The AMD Radeon PRO W7900 has a transistor density of 109.1M per mm² on TSMC’s 5 nm process, compared to the NVIDIA RTX A4500 Mobile’s 44.4M per mm² on Samsung’s 8 nm process.

Q: How do the two cards compare to their nearest rivals?

A: The AMD Radeon PRO W7900 trails the NVIDIA RTX A5500 Mobile by 2.8% and the NVIDIA Tesla V100 SXM2 16 GB by 3.2%, but leads the AMD Radeon Pro Vega II by 1% and the AMD Radeon Pro W6600X by 3.2%. The NVIDIA RTX A4500 Mobile is 0.6% behind the desktop NVIDIA RTX A4500, but leads the AMD Radeon Instinct MI60 by 1.4%, the NVIDIA Quadro GP100 by 4.2%, and the AMD Radeon PRO W7600 by 4.6%.