AMD Radeon Pro WX 9100 vs NVIDIA RTX A4500 Mobile Comparison

The Verdict

The benchmark data presents a clear hierarchy between these two professional mobile and workstation GPUs. The NVIDIA RTX A4500 Mobile is the decisive winner in every recorded head-to-head test, and its average benchmark score reflects a substantial performance gap. The NVIDIA part achieves an average benchmark score of 91,134, placing it in the 93rd percentile of all GPUs, while the AMD Radeon Pro WX 9100 scores 64,212 on average, landing in the 89th percentile. That is a 42% advantage in average score for the NVIDIA product.

For users seeking maximum compute throughput in OpenCL and Vulkan workloads, the RTX A4500 Mobile is the only rational choice based on the data. It wins both head-to-head tests by margins of 58.1% and 40.7%, respectively. The AMD card, while still a capable workstation part, trails significantly in raw performance. The WX 9100 does have one notable advantage: its 2:1 FP16 ratio means it can process half-precision floating point at 24.58 TFLOPS, which is nearly double its FP32 rate. The RTX A4500 Mobile offers FP16 at a 1:1 ratio, matching its FP32 output at 17.66 TFLOPS. For workloads that heavily utilize FP16 compute, the AMD card could be the better fit.

The RTX A4500 Mobile is the pick for professionals running OpenCL or Vulkan acceleration, where it dominates. The Radeon Pro WX 9100 is the fallback for those with specific FP16-heavy workloads, but even then, the overall benchmark picture shows the NVIDIA card is the stronger all-around performer. The RTX A4500 Mobile also carries a much lower thermal design power at 140 W versus 230 W for the AMD card, making it more suitable for mobile or power-constrained chassis.

Where Each One Wins

The RTX A4500 Mobile wins in every measured category. In Geekbench OpenCL, it scores 105,307 against 66,605 for the WX 9100, a 58.1% lead. In Geekbench Vulkan, it scores 76,960 against 54,711, a 40.7% lead. These are the only two head-to-head benchmark tests recorded in the database, so the NVIDIA card wins both, giving it a 2-0 record.

The AMD Radeon Pro WX 9100 has no benchmark wins in the recorded data. However, there is one area where the AMD card has a hardware-level advantage that is not captured in those two tests: FP16 throughput. The WX 9100 delivers 24.58 TFLOPS of FP16 performance, while the RTX A4500 Mobile delivers 17.66 TFLOPS. That means the AMD card is roughly 39% faster in FP16 compute, a meaningful difference for scientific or AI workloads that rely on half-precision arithmetic. The NVIDIA card matches its FP32 rate for FP16, while the AMD card doubles it.

In terms of memory bandwidth, the two cards are close. The RTX A4500 Mobile offers 512.0 GB/s across a 256-bit GDDR6 bus, while the WX 9100 offers 483.8 GB/s across a 2048-bit HBM2 bus. The NVIDIA card has a 5.8% bandwidth advantage, which contributes to its OpenCL and Vulkan wins. The AMD card uses a much wider bus (2048-bit vs 256-bit) but compensates with lower memory clocks (945 MHz vs 2000 MHz), resulting in similar effective bandwidth.

The RTX A4500 Mobile also has a significant advantage in pixel fill rate: 144.0 GPixel/s versus 96.0 GPixel/s for the AMD card. That is a 50% advantage, which helps in rasterization-heavy tasks. The AMD card, however, has a higher texture fill rate at 384.0 GTexel/s versus 276.0 GTexel/s, a 39% advantage for the WX 9100, thanks to its 256 texture mapping units versus 184 on the NVIDIA part.

Architecture Differences

The two GPUs come from different architectural generations and manufacturing processes. The NVIDIA RTX A4500 Mobile uses the GA104 chip built on Ampere architecture, fabricated on Samsung's 8 nm process. The die measures 392 mm² and contains 17,400 million transistors, giving a transistor density of 44.4 million per square millimeter. The AMD Radeon Pro WX 9100 uses the Vega 10 chip based on GCN 5.0 architecture, fabricated on GlobalFoundries' 14 nm process. The die is larger at 495 mm² but contains fewer transistors at 12,500 million, resulting in a lower density of 25.3 million per square millimeter.

The NVIDIA card is a mobile part, released on 2022-03-21, while the AMD card is a desktop workstation card, released on 2017-07-09. The RTX A4500 Mobile is the successor to Quadro Turing-M and was succeeded by Ada-MW. The WX 9100 is the successor to Radeon Pro GCN and was succeeded by Radeon Pro Vega. Both are marked as end-of-life in the database.

Core configurations differ significantly. The RTX A4500 Mobile has 5,888 shading units, 184 texture mapping units, 96 render output units, 46 ray tracing cores, and 184 tensor cores. The WX 9100 has 4,096 shading units, 256 texture mapping units, and 64 render output units, but no ray tracing cores or tensor cores. That means the NVIDIA card supports hardware ray tracing and AI acceleration, while the AMD card does not.

Memory technology also diverges. The NVIDIA card uses 16 GB of GDDR6 on a 256-bit bus, while the AMD card uses 16 GB of HBM2 on a 2048-bit bus. The bus width difference is substantial, but the effective bandwidth is similar due to clock speeds. The NVIDIA card runs memory at 2000 MHz (16 Gbps effective), while the AMD card runs at 945 MHz (1890 Mbps effective). The NVIDIA card supports PCIe 4.0 x16, while the AMD card supports PCIe 3.0 x16.

The AMD card is a dual-slot design measuring 267 mm in length and 111 mm in height, with 1x 6-pin and 1x 8-pin power connectors and a suggested power supply of 550 W. The NVIDIA card has no dedicated power connectors, as it is a mobile part, and its display outputs are listed as portable device dependent. The WX 9100 offers 6x mini-DisplayPort 1.4a outputs. The NVIDIA card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD card supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX A4500 Mobile has an average benchmark score of 91,134, while the AMD Radeon Pro WX 9100 has an average score of 64,212. The NVIDIA card scores 42% higher on average.

Q: Does the AMD Radeon Pro WX 9100 win any head-to-head benchmark?

A: No. In the recorded head-to-head tests, the RTX A4500 Mobile wins both Geekbench OpenCL and Geekbench Vulkan. The AMD card has zero wins in the database.

Q: Which GPU has better FP16 compute performance?

A: The AMD Radeon Pro WX 9100 has higher FP16 throughput at 24.58 TFLOPS (2:1 ratio), while the NVIDIA RTX A4500 Mobile delivers 17.66 TFLOPS (1:1 ratio). The AMD card is faster in FP16 workloads.

Q: What is the memory bandwidth of each GPU?

A: The RTX A4500 Mobile has 512.0 GB/s bandwidth using 16 GB of GDDR6 on a 256-bit bus. The WX 9100 has 483.8 GB/s bandwidth using 16 GB of HBM2 on a 2048-bit bus. The NVIDIA card has a 5.8% bandwidth advantage.

Q: Do both GPUs support ray tracing?

A: No. The NVIDIA RTX A4500 Mobile has 46 ray tracing cores and 184 tensor cores. The AMD Radeon Pro WX 9100 has no ray tracing cores and no tensor cores.

Q: What are the power requirements?

A: The RTX A4500 Mobile has a TDP of 140 W and no power connectors. The WX 9100 has a TDP of 230 W, requires 1x 6-pin and 1x 8-pin power connectors, and suggests a 550 W power supply.

Head-to-Head Benchmarks

The recorded head-to-head data contains two tests, both won by the NVIDIA RTX A4500 Mobile. The first is Geekbench OpenCL, where the NVIDIA card scores 105,307 against 66,605 for the AMD card. That is a delta of 58.1%, meaning the NVIDIA card is more than one and a half times faster in this compute workload. The margin is substantial and reflects the combination of higher shading unit count (5,888 vs 4,096), higher FP32 throughput (17.66 TFLOPS vs 12.29 TFLOPS), and higher memory bandwidth (512.0 GB/s vs 483.8 GB/s).

The second test is Geekbench Vulkan, where the NVIDIA card scores 76,960 against 54,711 for the AMD card. The delta here is 40.7%, still a decisive win but a narrower margin than OpenCL. Vulkan performance is influenced by driver optimization and API support, and the NVIDIA card supports Vulkan 1.4 while the AMD card supports Vulkan 1.3. The NVIDIA card's 96 render output units versus 64 on the AMD card likely contribute to better rasterization performance in Vulkan workloads.

Looking at the nearest rivals in the database puts these scores in context. The RTX A4500 Mobile's average score of 91,134 is 0.6% below the desktop NVIDIA RTX A4500 (91,671), 1.4% below the AMD Radeon Instinct MI60 (92,466), 4.2% above the NVIDIA Quadro GP100 (87,445), and 4.6% above the AMD Radeon PRO W7600 (87,108). This shows the mobile part is essentially on par with its desktop counterpart, a strong result for a mobile GPU.

The WX 9100's average score of 64,212 is 0.6% above the NVIDIA CMP 30HX (63,842), 0.6% above the AMD Radeon RX 9060 XT LP (63,830), 0.7% above the AMD Radeon RX 7600M (63,775), and 0.8% above the AMD Radeon Pro Vega 56 (63,693). The WX 9100 sits at the top of its immediate rival group, but that group is far below the RTX A4500 Mobile's performance tier.

The percentile rankings reinforce the gap. The RTX A4500 Mobile sits in the 93rd percentile of all GPUs, while the WX 9100 sits in the 89th percentile. That four-point difference in percentile represents a meaningful performance tier gap in the database's distribution.

In terms of raw specifications that drive these scores, the RTX A4500 Mobile has a boost clock of 1500 MHz, the same as the WX 9100's boost clock. The base clocks differ: 930 MHz for the NVIDIA card and 1200 MHz for the AMD card. The AMD card starts higher but both reach the same boost ceiling. The NVIDIA card compensates with more shading units and a newer architecture.

The FP32 compute figures tell the story clearly. The RTX A4500 Mobile delivers 17.66 TFLOPS, while the WX 9100 delivers 12.29 TFLOPS. That is a 43.7% advantage for the NVIDIA card, which aligns closely with the 58.1% OpenCL delta. The texture rate favors the AMD card at 384.0 GTexel/s versus 276.0 GTexel/s, but that does not translate into benchmark wins in the recorded tests. The pixel rate favors the NVIDIA card at 144.0 GPixel/s versus 96.0 GPixel/s, a 50% advantage that likely matters in Vulkan.

The NVIDIA card also has a more modern feature set. It supports DirectX 12 Ultimate (12_2), while the AMD card supports DirectX 12 (12_1). The NVIDIA card supports PCIe 4.0, while the AMD card is limited to PCIe 3.0. These differences, combined with the architectural gap between Ampere (8 nm) and GCN 5.0 (14 nm), explain why the RTX A4500 Mobile is the clear winner in every measured benchmark.