NVIDIA GeForce RTX 5090 vs NVIDIA RTX A3000 Mobile Comparison

The NVIDIA GeForce RTX 5090 is in a completely different performance class than the NVIDIA RTX A3000 Mobile, dominating every benchmark where both cards have data. In the two shared tests, the RTX 5090 delivers 322.8% higher OpenCL performance and 515.7% higher Vulkan performance, making the comparison less a head-to-head contest and more a demonstration of generational and market-segment extremes.

Head-to-Head Benchmarks

The data shows a total wipeout. Across the two tests both GPUs have completed, the GeForce RTX 5090 wins both, with the RTX A3000 Mobile failing to secure a single victory. In Geekbench OpenCL, the RTX 5090 scores 334,370 against the A3000 Mobile’s 79,091, a delta of 322.8%. That is not an incremental lead; it is a 4.2x advantage in raw compute throughput. The Vulkan gap is even more pronounced: the RTX 5090 hits 376,728 while the A3000 Mobile manages only 61,189, a 515.7% difference — meaning the desktop card is roughly six times faster in this API workload.

These deltas dwarf any rivalry within each card’s own tier. The RTX 5090’s nearest rival in average score, the NVIDIA Tesla P100 PCIe 16 GB, sits just 0.3% behind its 79,842 average benchmark score — a negligible margin. Meanwhile, the RTX A3000 Mobile’s average score of 70,140 places it 0.2% ahead of the Quadro P6000 and 0.4% ahead of the Radeon Pro WX 8200. The head-to-head delta between the two cards in this comparison is over 300 percentage points in each test, which is far beyond anything seen in their respective rival groups.

It is importantly the RTX 5090 has ten benchmark results in its profile, while the A3000 Mobile only has two. The RTX 5090’s strongest individual scores include 39,650 in Passmark G3D, 26,756 in Passmark GPU Compute, and 18,355 in 3DMark Steel Nomad DX12. The A3000 Mobile has no equivalent data, so the head-to-head is necessarily limited to the two Geekbench tests. Even so, the pattern is unambiguous: the RTX 5090 is faster by every metric that can be compared, and by margins that suggest entirely different use cases.

Where Each One Wins

The GeForce RTX 5090 wins in every scenario where raw performance is the deciding factor. Its 104.8 TFLOPS of FP32 throughput, 1.79 TB/s memory bandwidth, and 32 GB of GDDR7 memory make it suited for heavy compute, high-resolution rendering, and multi-GPU workstation workloads. The benchmark data reinforces this: a 515.7% lead in Vulkan indicates exceptional geometry and rasterization throughput, while the 322.8% OpenCL lead points to compute-heavy tasks like simulation or AI inference.

The RTX A3000 Mobile, by contrast, wins in contexts that the benchmark scores do not capture directly — namely, power and physical footprint. With a 70 W TDP and no power connectors, it is designed for laptops where a 575 W desktop card simply cannot operate. Its 6 GB memory and 264.0 GB/s bandwidth are modest, but they fit within a portable chassis. The A3000 Mobile’s 91st percentile ranking among all GPUs shows it is not a weak card in absolute terms; it is merely outclassed by the RTX 5090’s 92nd percentile ranking. For a mobile user needing CUDA acceleration in a laptop, the A3000 Mobile is the only viable option between the two — not because it is faster, but because it exists in a form factor the RTX 5090 cannot match.

The use-case split is therefore sharp: the RTX 5090 is for fixed workstations or desktops where performance is paramount and power is available. The RTX A3000 Mobile is for professionals who need NVIDIA GPU features in a portable system, accepting a 10.08 TFLOPS FP32 ceiling in exchange for mobility.

Architecture Differences

The two GPUs come from different architectures, different manufacturing processes, and different design philosophies. The RTX 5090 uses the Blackwell 2.0 architecture on a 5 nm TSMC process, with a GB202 chip containing 92,200 million transistors on a 750 mm² die. That yields a transistor density of 122.9 million per square millimeter. The RTX A3000 Mobile uses the older Ampere architecture on Samsung’s 8 nm process, with a GA104 chip housing 17,400 million transistors on a 392 mm² die — a density of 44.4 million per square millimeter.

The core configuration differences are stark. The RTX 5090 has 21,760 shading units, 680 TMUs, and 176 ROPs, alongside 170 RT cores and 680 tensor cores. The RTX A3000 Mobile has 4,096 shading units, 128 TMUs, and 64 ROPs, with 32 RT cores and 128 tensor cores. That means the RTX 5090 has 5.3x the shading units, 5.3x the TMUs, 2.75x the ROPs, 5.3x the RT cores, and 5.3x the tensor cores. These ratios align closely with the observed benchmark deltas, suggesting the architectural advantage is primarily about scale rather than efficiency per core.

Memory architecture also diverges. The RTX 5090 uses 32 GB of GDDR7 on a 512-bit bus, achieving 1.79 TB/s bandwidth. The A3000 Mobile uses 6 GB of GDDR6 on a 192-bit bus, with 264.0 GB/s. The bandwidth gap is 6.8x, which is even larger than the core count gap and explains why the RTX 5090 excels in memory-bound Vulkan workloads. The RTX 5090 also supports PCIe 5.0 x16 while the A3000 Mobile uses PCIe 4.0 x16, and the former has a fixed display output configuration (1x HDMI 2.1b, 3x DisplayPort 2.1b) versus the latter’s “Portable Device Dependent” outputs.

Both cards share the same API support — DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 — so software compatibility is not a differentiator. The production status differs: the RTX 5090 is active, while the A3000 Mobile is end-of-life.

Specification Differences

The most consequential specification differences are memory, power, and physical dimensions. The RTX 5090 has 32 GB of GDDR7 memory; the A3000 Mobile has 6 GB of GDDR6. Memory bus width is 512-bit versus 192-bit, and bandwidth is 1.79 TB/s versus 264.0 GB/s. Clock speeds: the RTX 5090 runs at 2017 MHz base and 2407 MHz boost, while the A3000 Mobile runs at 600 MHz base and 1230 MHz boost. Memory clocks are 1750 MHz (28 Gbps effective) versus 1375 MHz (11 Gbps effective).

Power consumption is a major differentiator. The RTX 5090 has a 575 W TDP and requires a 950 W suggested PSU with a single 16-pin connector. The A3000 Mobile has a 70 W TDP and requires no power connectors. The RTX 5090 is dual-slot with dimensions of 304 mm length, 137 mm height, and 40 mm width; the A3000 Mobile has no listed dimensions or slot width, as it is an integrated mobile component.

Release dates are far apart: the RTX 5090 launched 2025-01-29, while the A3000 Mobile launched 2021-04-11. The RTX 5090 has a launch MSRP of 1,999 USD; the A3000 Mobile has no listed MSRP. The RTX 5090’s predecessor is the GeForce 40 series and successor is the GeForce 60 series; the A3000 Mobile’s predecessor is Quadro Turing-M and successor is Ada-MW.

FAQ

Q: Which GPU is faster in Geekbench Vulkan?

A: The NVIDIA GeForce RTX 5090 scores 376,728 versus the RTX A3000 Mobile’s 61,189, a 515.7% advantage.

Q: What is the memory capacity difference?

A: The RTX 5090 has 32 GB of GDDR7, while the RTX A3000 Mobile has 6 GB of GDDR6.

Q: How do their power requirements compare?

A: The RTX 5090 has a 575 W TDP and requires a 950 W PSU, while the RTX A3000 Mobile has a 70 W TDP and uses no power connectors.

Q: Are they from the same architecture generation?

A: No. The RTX 5090 uses Blackwell 2.0 on a 5 nm TSMC process, while the RTX A3000 Mobile uses Ampere on an 8 nm Samsung process.

Q: Which card has better average benchmark score?

A: The RTX 5090 has an average benchmark score of 79,842, which is 13.8% higher than the RTX A3000 Mobile’s 70,140.

Q: What is the production status of each GPU?

A: The RTX 5090 is active, while the RTX A3000 Mobile is end-of-life.

The Verdict

The data directs a clear choice based on use case. If you need maximum compute performance in a desktop or workstation, the GeForce RTX 5090 is the only option between the two. It wins both shared benchmarks by enormous margins, offers 5.3x the shading units, 6.8x the memory bandwidth, and 5.3x the FP32 throughput of the A3000 Mobile. Its 92nd percentile ranking versus the A3000 Mobile’s 91st is misleading — the percentile gap is small, but the raw score gap is 9,702 points in average benchmark score, and the head-to-head deltas of 322.8% and 515.7% are decisive.

If you need a GPU for a laptop, the RTX A3000 Mobile is the only viable choice, despite being end-of-life and vastly slower. Its 70 W TDP and connector-free design make it usable in portable systems where the RTX 5090’s 575 W TDP and 304 mm length are physically impossible. For mobile professionals who require NVIDIA CUDA or RTX features, the A3000 Mobile is the practical pick — but its 10.08 TFLOPS FP32 and 6 GB memory are a fraction of the desktop card’s capabilities.

There is no middle ground. The RTX 5090 wins every performance metric, every benchmark, and every architectural comparison. The A3000 Mobile wins only on portability and power efficiency, which are not measured by the available benchmark data. Choose the RTX 5090 for performance, choose the A3000 Mobile for mobility — the benchmarks do not suggest any other rational basis for selection.