NVIDIA GeForce RTX 5090 Mobile vs NVIDIA RTX A500 Mobile Comparison

NVIDIA GeForce RTX 5090 Mobile and NVIDIA RTX A500 Mobile occupy opposite ends of the mobile GPU spectrum, with the former being a current-generation flagship and the latter an end-of-life entry-level professional part. The data shows a massive performance gulf, but the comparison is not merely about raw speed — it also highlights architectural generational leaps and entirely different design targets.

FAQ

Q: How much faster is the RTX 5090 Mobile than the RTX A500 Mobile in OpenCL?

A: In the Geekbench OpenCL test, the RTX 5090 Mobile scores 201,834, which is 389.1% higher than the RTX A500 Mobile’s 41,263.

Q: What is the largest single-benchmark advantage for either GPU?

A: The RTX 5090 Mobile’s biggest win is in Geekbench Vulkan, where it scores 198,405 versus 37,873 for the RTX A500 Mobile, a delta of 423.9%.

Q: Are these two GPUs from the same architecture generation?

A: No. The RTX 5090 Mobile uses Blackwell 2.0 architecture on a 5 nm TSMC process, while the RTX A500 Mobile uses Ampere architecture on an 8 nm Samsung process.

Q: Which GPU has higher transistor density?

A: The RTX 5090 Mobile has a transistor density of 120.6M / mm², while the RTX A500 Mobile has 43.5M / mm² — a direct consequence of the newer 5 nm node.

Q: What is the memory capacity difference?

A: The RTX 5090 Mobile comes with 24 GB of GDDR7 memory on a 256-bit bus, whereas the RTX A500 Mobile has 4 GB of GDDR6 memory on a 64-bit bus.

Q: Which GPU has a higher percentile ranking among all GPUs?

A: The RTX 5090 Mobile ranks in the 84th percentile, slightly ahead of the RTX A500 Mobile’s 82nd percentile, despite the enormous absolute score difference.

Architecture Differences

The architectural gap between these two GPUs is substantial. The RTX 5090 Mobile is built on Blackwell 2.0, fabricated by TSMC on a 5 nm process, using the GB203 chip with 45,600 million transistors on a 378 mm² die. The RTX A500 Mobile uses the older Ampere architecture, manufactured by Samsung on an 8 nm process, with the GA107S chip containing 8,700 million transistors on a 200 mm² die. This results in a transistor density of 120.6M / mm² for the RTX 5090 Mobile versus 43.5M / mm² for the RTX A500 Mobile.

The compute core counts differ by a factor of five or more. The RTX 5090 Mobile has 10,496 shading units, 328 TMUs, and 112 ROPs. The RTX A500 Mobile has 2,048 shading units, 64 TMUs, and 32 ROPs. Ray tracing hardware follows the same pattern: 82 RT cores on the RTX 5090 Mobile versus 16 on the RTX A500 Mobile. Tensor core counts are 328 versus 64, respectively.

Memory architecture is another clear differentiator. The RTX 5090 Mobile uses 24 GB of GDDR7 with a 256-bit bus, yielding 896.0 GB/s of bandwidth. The RTX A500 Mobile has 4 GB of GDDR6 on a 64-bit bus, providing 96.00 GB/s — a 9.3x bandwidth deficit. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but the underlying implementations belong to different hardware generations.

The power envelope also tells a story: the RTX 5090 Mobile has a TDP of 95 W, while the RTX A500 Mobile is rated at 30 W. Both are IGP slot-width designs with no power connectors and portable-device-dependent display outputs, but the RTX 5090 Mobile uses PCIe 5.0 x16, whereas the RTX A500 Mobile uses PCIe 4.0 x8.

Head-to-Head Benchmarks

Only two benchmarks appear in the head-to-head comparison, and the RTX 5090 Mobile wins both decisively. In Geekbench OpenCL, the RTX 5090 Mobile scores 201,834 against 41,263 for the RTX A500 Mobile, a 389.1% advantage. This means the RTX 5090 Mobile delivers nearly five times the OpenCL compute performance of the RTX A500 Mobile.

The Vulkan result is even more lopsided. The RTX 5090 Mobile scores 198,405, while the RTX A500 Mobile manages 37,873. That is a 423.9% delta — the RTX 5090 Mobile is more than five times faster in this API. The data indicates that the architectural advantages of Blackwell 2.0, combined with the higher core counts and memory bandwidth, translate directly into massive real-world compute superiority.

Looking at the broader benchmark context from the FACT PACK, the RTX 5090 Mobile’s average benchmark score is 45,152, and it also has individual scores in 3DMark Steel Nomad (5,871), Passmark G3D (30,034), and Passmark GPU Compute (13,401). The RTX A500 Mobile has no additional benchmark entries beyond the two Geekbench scores, which limits direct comparison but does not change the overall picture — the RTX 5090 Mobile dominates in every available metric.

Specification Differences

The two GPUs differ in nearly every measurable specification. The process node shifts from 5 nm (RTX 5090 Mobile) to 8 nm (RTX A500 Mobile). Transistor count goes from 45,600 million to 8,700 million, and die size from 378 mm² to 200 mm². Base clocks are 990 MHz versus 832 MHz, while boost clocks are closer: 1515 MHz versus 1537 MHz, with the RTX A500 Mobile actually having a slightly higher boost.

Memory is starkly different: 24 GB GDDR7 on a 256-bit bus with 896.0 GB/s bandwidth versus 4 GB GDDR6 on a 64-bit bus with 96.00 GB/s. Memory clocks are 1750 MHz (28 Gbps effective) for the RTX 5090 Mobile and 1500 MHz (12 Gbps effective) for the RTX A500 Mobile.

Shader resources diverge sharply: 10,496 shading units versus 2,048, 328 TMUs versus 64, 112 ROPs versus 32, 82 RT cores versus 16, and 328 tensor cores versus 64. Pixel rate is 169.7 GPixel/s versus 49.18 GPixel/s, and texture rate is 496.9 GTexel/s versus 98.37 GTexel/s. FP32 and FP16 compute are both 31.80 TFLOPS for the RTX 5090 Mobile, while the RTX A500 Mobile manages 6.296 TFLOPS in both.

TDP differs by more than threefold: 95 W versus 30 W. The bus interface changes from PCIe 5.0 x16 to PCIe 4.0 x8. Production status is Active for the RTX 5090 Mobile versus End-of-life for the RTX A500 Mobile. Release dates are 2025-03-26 and 2022-03-21, respectively. The RTX 5090 Mobile’s predecessor is GeForce 40 Mobile, while the RTX A500 Mobile’s predecessor is Quadro Turing-M; the RTX A500 Mobile has a successor in Ada-MW, but the RTX 5090 Mobile has none listed.

The Verdict

The benchmark data is unambiguous: the NVIDIA GeForce RTX 5090 Mobile is the vastly faster GPU. In OpenCL, it leads by 389.1%, and in Vulkan by 423.9%. Its average benchmark score of 45,152 places it in the 84th percentile of all GPUs, with nearest rivals including the AMD Radeon Pro 5500 XT (delta -0.5%), NVIDIA GeForce RTX 4070 Ti (delta 0.8%), Intel Arc A730M (delta -1%), and NVIDIA RTX 5880 Ada Generation (delta -1.8%). The RTX A500 Mobile, with an average score of 39,568, sits in the 82nd percentile, competing with AMD Radeon Pro 575 (delta 0%), AMD Radeon Pro 575X (delta 1.2%), AMD Radeon Pro WX 7100 (delta -1.2%), and AMD Radeon Pro 580 (delta -1.9%).

The RTX 5090 Mobile is the clear choice for anyone needing maximum compute throughput, 24 GB of memory, or the latest Blackwell 2.0 features. The RTX A500 Mobile, despite being end-of-life, still holds its own in percentile ranking relative to its peers — it is not a weak GPU, merely an old one. The data suggests the RTX A500 Mobile is suitable for scenarios where the 30 W TDP and smaller footprint matter more than raw speed, but no benchmark in the FACT PACK shows it winning any test.

Where Each One Wins

The RTX 5090 Mobile wins every head-to-head benchmark, with no exceptions. It dominates in both OpenCL and Vulkan, and its additional benchmark scores (3DMark Steel Nomad at 5,871, Passmark G3D at 30,034, Passmark GPU Compute at 13,401) further establish its compute leadership. The 24 GB GDDR7 memory with 896.0 GB/s bandwidth makes it suited for large datasets, high-resolution textures, or any workload that saturates memory capacity — the RTX A500 Mobile’s 4 GB GDDR6 with 96.00 GB/s would bottleneck in such cases.

The RTX A500 Mobile’s only potential advantages are qualitative, not quantitative. Its 30 W TDP is one-third that of the RTX 5090 Mobile, which could matter in thermally constrained or battery-powered designs. Its smaller transistor count and die size may also imply lower manufacturing complexity, though the data does not directly measure efficiency. The RTX A500 Mobile’s nearest rivals are all AMD professional parts with similar average scores (39,555 to 40,318), suggesting it holds its own within its own performance class, but that class is far below the RTX 5090 Mobile’s.

For pure compute workloads, the RTX 5090 Mobile is the only rational choice from this data. For legacy compatibility or ultra-low-power embedded use, the RTX A500 Mobile remains a viable option, but no benchmark result in the FACT PACK supports choosing it over the RTX 5090 Mobile on performance grounds. The verdict is straightforward: the RTX 5090 Mobile wins all measurable comparisons, and the RTX A500 Mobile’s role is defined by its lower power draw and end-of-life status rather than any performance advantage.