NVIDIA RTX 4500 Ada Generation vs NVIDIA RTX A5500 Comparison

The NVIDIA RTX 4500 Ada Generation and the NVIDIA RTX A5500 are both 24 GB workstation cards, but they represent two distinct architectural eras from NVIDIA. The data shows a fascinating split: the older Ampere-based RTX A5500 dominates in one compute API, while the newer Ada Lovelace card leads decisively in another. Their aggregate performance averages are nearly identical, but the workloads you prioritize will dictate the correct choice.

Head-to-Head Benchmarks

The benchmark results reveal a clear division of labor between these two GPUs. In the Geekbench OpenCL test, the NVIDIA RTX A5500 posts a score of 174,637, which is 7.9% higher than the RTX 4500 Ada Generation’s 160,786. This is a substantial margin in a raw compute context, suggesting the A5500’s larger memory bus and higher shading unit count provide a tangible advantage in OpenCL workloads that are not specifically optimized for the newer architecture’s feature set.

However, the tables turn completely in the Geekbench Vulkan test. Here, the RTX 4500 Ada Generation scores 171,401, outperforming the RTX A5500’s 155,797 by a significant 10% margin. This is a commanding win for the Ada card and indicates that its architectural improvements—likely including more efficient execution of graphics and compute tasks through the Vulkan API—deliver a real-world performance uplift in modern rendering paths.

Looking at the aggregate data, the average benchmark score for the RTX 4500 Ada Generation is 166,094, while the RTX A5500 sits at 165,217. The delta between them is a mere 0.5% in favor of the Ada card. This marginal difference in the average is echoed in the nearest rivals data, where the RTX A5500 is listed as the closest competitor to the RTX 4500 Ada Generation with that same 0.5% delta. From the perspective of the RTX A5500, the RTX 4500 Ada Generation is its nearest rival with a -0.5% delta, confirming that these two cards are essentially performance equals when their scores are blended.

Each card claims one win in the head-to-head benchmarks, resulting in a 1:1 split. The RTX A5500’s win in OpenCL is more substantial in percentage terms than the RTX 4500 Ada Generation’s win in Vulkan, but the Vulkan deficit for the A5500 is still a decisive factor for modern application compatibility. If a software package relies heavily on Vulkan, the RTX 4500 Ada Generation is the clear choice. For legacy or compute-heavy OpenCL pipelines, the RTX A5500 holds the edge.

Architecture Differences

The two cards are built on fundamentally different foundations. The RTX 4500 Ada Generation uses the AD103 chip, fabricated on a 5 nm process at TSMC. This is a stark contrast to the RTX A5500, which uses the GA102 chip built on an 8 nm process at Samsung. The process node difference is massive: the Ada chip packs 45,900 million transistors into a 379 mm² die, while the Ampere chip contains 28,300 million transistors on a much larger 628 mm² die. Consequently, the transistor density of the Ada card is 121.1M / mm², compared to just 45.1M / mm² for the Ampere card. This explains how the newer card achieves higher clock speeds and efficiency despite having fewer physical resources.

The core configurations show a trade-off between quantity and speed. The RTX A5500 has more raw processing units: 10,240 shading units, 320 TMUs, 96 ROPs, 80 RT cores, and 320 tensor cores. The RTX 4500 Ada Generation counters with 7,680 shading units, 240 TMUs, 80 ROPs, 60 RT cores, and 240 tensor cores. Despite having roughly 25% fewer cores, the Ada card achieves higher peak throughput in some metrics due to its superior clock speeds. The Ada card has a base clock of 2070 MHz and a boost clock of 2580 MHz, while the A5500 is significantly lower at 1080 MHz base and 1665 MHz boost.

These clock differences translate into contrasting peak performance figures. The RTX 4500 Ada Generation reaches 39.63 TFLOPS of FP32 and FP16 performance, while the RTX A5500 achieves 34.10 TFLOPS in both. This gives the Ada card a 16% advantage in raw floating-point throughput. Similarly, the Ada card’s pixel rate is 206.4 GPixel/s versus 159.8 GPixel/s for the A5500, and its texture rate is 619.2 GTexel/s versus 532.8 GTexel/s. The Ada card wins on raw computational speed, but the A5500 wins on memory bandwidth. The A5500 has a 384-bit memory bus providing 768.0 GB/s of bandwidth, while the Ada card is limited to a 192-bit bus and 432.0 GB/s. Both have 24 GB of GDDR6 memory, but the A5500’s memory runs at 16 Gbps effective, while the Ada card’s runs at 18 Gbps effective, which helps narrow the bandwidth gap.

Power and physical characteristics differ as well. The RTX 4500 Ada Generation has a lower TDP of 210 W and requires no external power connectors, drawing all power from the PCIe slot. The RTX A5500 has a TDP of 230 W and requires a single 8-pin power connector. Both suggest a 550 W power supply. The Ada card is shorter at 245 mm (9.6 inches) compared to the A5500’s 267 mm (10.5 inches), though both are dual-slot designs with identical height. Both cards use the same PCIe 4.0 x16 interface, have four DisplayPort 1.4a outputs, and support DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

The Verdict

The data presents a nuanced picture. The RTX 4500 Ada Generation is the superior card for Vulkan-based applications, delivering a 10% performance advantage. It also offers higher raw compute throughput, lower power consumption, and a more modern manufacturing process. The RTX A5500, however, is the better choice for OpenCL-centric workloads, where it leads by 7.9%, and it provides significantly higher memory bandwidth, which is critical for large datasets or high-resolution textures that exceed the Ada card’s narrower bus capacity.

For users running modern CAD, DCC, or simulation software that has adopted Vulkan, the RTX 4500 Ada Generation is the stronger pick. Its 10% lead in that API, combined with its higher FP32 and texture rates, makes it better suited for real-time viewport rendering and modern compute shaders. The RTX A5500 is the more sensible option for environments still reliant on OpenCL, where its performance advantage is clear. Its massive bandwidth advantage also makes it attractive for certain scientific computing or machine learning inference tasks that are memory-bound.

The production status is also a factor. The RTX 4500 Ada Generation is marked as "Active," while the RTX A5500 is "End-of-life." This suggests a longer support lifecycle for the Ada card. The RTX A5500’s predecessor is Quadro Turing, and its successor is Workstation Ada, directly positioning the RTX 4500 Ada Generation as its replacement. With its newer architecture, active production status, and Vulkan performance lead, the RTX 4500 Ada Generation is the forward-looking choice. The RTX A5500 remains a capable and competitive card for specific OpenCL workloads, but the data indicates the RTX 4500 Ada Generation is the better overall investment for future software.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX 4500 Ada Generation has an average benchmark score of 166,094, which is 0.5% higher than the NVIDIA RTX A5500’s average score of 165,217.

Q: How large is the performance difference in the Vulkan benchmark?

A: In the Geekbench Vulkan test, the NVIDIA RTX 4500 Ada Generation scores 171,401 compared to the RTX A5500’s 155,797, giving the Ada card a 10% performance advantage.

Q: Does the RTX A5500 have a faster memory bus?

A: Yes, the RTX A5500 has a 384-bit memory bus, which provides a bandwidth of 768.0 GB/s. The RTX 4500 Ada Generation has a 192-bit bus with a bandwidth of 432.0 GB/s.

Q: What are the TDP ratings for these cards?

A: The NVIDIA RTX 4500 Ada Generation has a TDP of 210 W, while the NVIDIA RTX A5500 has a higher TDP of 230 W.

Q: Which card has a higher boost clock speed?

A: The NVIDIA RTX 4500 Ada Generation has a boost clock of 2580 MHz, which is significantly higher than the RTX A5500’s boost clock of 1665 MHz.

Q: Are both cards currently in production?

A: The NVIDIA RTX 4500 Ada Generation is marked as "Active" in production status, while the NVIDIA RTX A5500 is marked as "End-of-life."

Where Each One Wins

The RTX 4500 Ada Generation wins in scenarios that benefit from its modern architecture and higher clock speeds. Its 10% lead in the Vulkan benchmark makes it the superior choice for applications that use this API for rendering or compute. Its higher FP32 throughput of 39.63 TFLOPS, compared to the A5500’s 34.10 TFLOPS, gives it an edge in general-purpose compute tasks that are not bandwidth-limited. The Ada card is also more efficient, with a lower TDP of 210 W and no external power connectors required, making it easier to integrate into power-constrained systems. Its shorter length of 245 mm also offers more flexibility for chassis compatibility.

The RTX A5500 wins in memory bandwidth-sensitive workloads. Its 768.0 GB/s bandwidth is 78% higher than the Ada card’s 432.0 GB/s, making it the better option for tasks like large-scale data processing, high-resolution texture streaming, or scientific simulations that demand rapid data movement. Its 7.9% lead in the OpenCL benchmark indicates it remains the stronger choice for legacy compute stacks or OpenCL-optimized applications. The A5500 also has more raw processing units, including 10,240 shading units and 320 tensor cores, which can be advantageous in workloads that scale well with core count rather than clock speed or architectural efficiency.