NVIDIA GeForce RTX 4090 Mobile vs NVIDIA RTX A2000 12 GB Comparison

# NVIDIA GeForce RTX 4090 Mobile vs NVIDIA RTX A2000 12 GB: Benchmark Analysis

The NVIDIA GeForce RTX 4090 Mobile holds a decisive performance lead over the NVIDIA RTX A2000 12 GB across every recorded benchmark in the database. The head-to-head comparison shows a single dominant result: the RTX 4090 Mobile wins the only shared test, the Geekbench OpenCL benchmark, by a margin of 169.9%. This is not a close contest; it is a generational and architectural gap made visible in raw numbers.

Head-to-Head Benchmarks

The database contains one directly comparable benchmark between these two cards. In the Geekbench OpenCL test, the NVIDIA GeForce RTX 4090 Mobile scored 180,831, while the NVIDIA RTX A2000 12 GB scored 66,998. The delta of 169.9% places the RTX 4090 Mobile firmly ahead, more than two and a half times the performance of the A2000 in this compute-oriented workload. No other shared benchmarks exist in the recorded data, meaning the entire comparison rests on this single, lopsided result.

Looking at the broader benchmark landscape for each card separately, the RTX 4090 Mobile shows a wide spread of results across different APIs. The data records a Geekbench OpenCL score of 180,831, a Geekbench Vulkan score of 170,774, and a Passmark G2D score of 984. The RTX A2000 12 GB, by contrast, posts a Geekbench OpenCL score of 66,998 and a 3DMark Steel Nomad DX12 score of 1,309. The RTX 4090 Mobile also leads in raw compute-oriented tests: Passmark GPU Compute at 12,347 versus a Passmark DirectX 10 score of 173 for the A2000. The average benchmark score across all recorded tests for the RTX 4090 Mobile is 43,667, placing it in the 84th percentile of all GPUs in the database. The RTX A2000 12 GB averages 34,154, which sits in the 79th percentile.

Where Each One Wins

The benchmark data gives the RTX 4090 Mobile an absolute advantage in every category where both cards have recorded results. There is no recorded test where the RTX A2000 12 GB wins. The wins for the RTX 4090 Mobile are one out of one in the head-to-head test. The GeForce card wins in raw compute, in API-specific tests, and in the aggregate. The RTX A2000 12 GB does not appear in any other recorded comparison, so its strengths are defined only by its own benchmark profile: it is a capable workstation part with solid scores in the OpenCL tests. The sole head-to-head result is enough to establish the performance hierarchy, however.

From the benchmark averages, the RTX 4090 Mobile's average score of 43,667 is 9% above the nearest rival, the NVIDIA Quadro M6000 24 GB, and 0.9% above both the GeForce RTX 5050 Mobile and the Quadro M6000 24 GB. It is also 0.9% below the RTX A6000, which shows the performance class it belongs to. The RTX A2000 12 GB, with an average of 34,154, is within 0.2% of the AMD Radeon RX 560 XT and 0.5% of the AMD Radeon RX 480, but 0.6% behind the NVIDIA TITAN V. The data indicates the A2000 is a mid-range workstation part, while the 4090 Mobile is a top-tier enthusiast part.

Architecture Differences

The architectural gap between these two cards is vast and explains the benchmark gap. The NVIDIA GeForce RTX 4090 Mobile uses the AD103 chip, built on the Ada Lovelace architecture, and contains 45,900 million transistors on a 379 mm² die, which gives a transistor density of 121.1 million per square millimeter. The process node is 5 nm and the foundry is TSMC. The RTX A2000 12GB uses the GA106 chip, built on the Ampere architecture (workstation Ax000), manufactured by Samsung at 8 nm. The die is 276 mm² and holds 12,000 million transistors, a density of 43.5M / mm².

The specifications show an enormous difference in the core resources. The RTX 4090 Mobile has 9,728 shading units, 304 texture mapping units, 112 ROPs, 76 ray tracing cores and 304 tensor cores. The RTX A2000 12GB has 3,328 shading units, 104 TMUs, 48 ROPs, 26 ray tracing cores, and 104 tensor cores. This is a 2.9x difference in shader processors, a 2.9x difference in TMUs, and a 2.3x difference in ROPs. The clocks move at a different speed as well: the RTX 4090 Mobile runs at a base of 1335 MHz and boosts to 1695 MHz, while the A2000 runs at 562 MHz base and 1200 MHz boost.

Memory configurations differ. The RTX 4090 Mobile has 16 GB of GDDR6 memory on a 256-bit bus, giving 576.0 GB/s of bandwidth. The RTX A2000 12 GB uses 12 GB of GDDR6 on a 192-bit bus for 288.0 GB/s. The RTX 4090 Mobile's fill rates are far higher: 189.8 GPixel/s and 515.3 GTexel/s versus 57.60 GPixel/s and 124.8 GTexel/s for the A2000. Floating-point compute reflects this gap: the RTX 4090 does 32.98 TFLOPS FP32 and the same for FP16 (1:1), while the A2000 does 7.987 TFLOPS. The power envelope differs by design: the RTX 4090 Mobile is a 120 W part and the RTX A2000 12 GB is 70 W. The bus interface is PCIe 4.0 x16 on both.

The Verdict

From the recorded data, the choice is clear. The NVIDIA GeForce RTX 4090 Mobile is dramatically faster, with a 169.9% lead in the single shared benchmark and a benchmark average that is 21% higher than the RTX A2000 12 GB. The RTX 4090 Mobile is the top performer in the database, at the 84th percentile of all GPUs, and its absolute performance level is confirmed by beating rivals such as the RTX A6000. It is best for users who prioritize maximum raw throughput, high memory bandwidth, and the highest shader and ray tracing resources. The NVIDIA RTX A2000 12 GB is a lower-power, lower-TDP card that still performs well in its class, but it cannot match the 4090 Mobile in any metric in the data. For workstations where the required result is maximum compute in the OpenCL and Vulkan workloads, the RTX 4090 Mobile wins. If the goal is a smaller, lower-power solution with adequate performance, the RTX A2000 is the choice, but on the raw evidence of the recorded data, the 4090 is the decisive winner.

FAQ

Q: Which card is faster in the Geekbench OpenCL test?

A: The NVIDIA GeForce RTX 4090 Mobile is faster, scoring 180,831 versus 66,998 for the NVIDIA RTX A2000 12 GB. That is a 169.9% lead.

Q: Does the RTX A2000 12 GB ever win any benchmark?

A: In the recorded data, no. The only shared result is the Geekbench OpenCL test, and the RTX 4090 Mobile wins that. The A2000 has no recorded wins in any benchmark.

Q: What is the average benchmark score difference?

A: The RTX 4090 Mobile averages 43,667 across all recorded benchmarks, versus 34,154 for the RTX A2000 12 GB. The RTX 4090 Mobile also sits at the 84th percentile of all GPUs, versus the 79th for the A2000.

Q: Do the cards share the same architecture?

A: No. The RTX 4090 Mobile uses the AD103 chip on the Ada Lovelace architecture, while the RTX A2000 uses the GA106 chip on the Ampere architecture.

Q: Which card has more shading units and tensor cores?

A: The RTX 4090 Mobile has 9,728 shading units and 304 tensor cores. The RTX A2000 12 GB has 3,328 shading units and 104 tensor cores.

Specification Differences

The two cards differ in nearly every core specification. The process node is different: 5 nm (TSMC) for the GeForce RTX 4090 Mobile versus 8 nm (Samsung) for the RTX A2000. The chip size is 379 mm² versus 276 mm², and the transistor count is 45,900 million versus 12,000 million. Density differs, at 121.1M/mm² versus 43.5M/mm². The memory bus width is 256 bit versus 192 bit. Memory type is GDDR6 on both, but the bandwidth is 576.0 GB/s versus 288.0 GB/s. The RTX 4090 Mobile has 16 GB memory, the A2000 has 12 GB.

The clock behavior is also distinct: the RTX 4090 Mobile has a base of 1335 MHz and a boost of 1695 MHz, while the A2000 has a base of 562 MHz and a boost of 1200 MHz. The RTX 4090 Mobile supports PCIe 4.0 x16, while the A2000 supports the same bus interface. Both support four display outputs, but the display type is portable device dependent for the RTX 4090 Mobile and 4x mini-DisplayPort 1.4a for the A2000. The TDP is 120 W versus 70 W. The RTX 4090 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6 and Vulkan 1.4; the RTX A2000 12 GB supports DirectX 12 Ultimate (12_2), OpenGL 4.6 and Vulkan 1.4.

The production status also sets them apart: the RTX 4090 Mobile is listed as Active, while the RTX A2000 12GB is End-of-life. The release dates place the RTX 4090 Mobile at 2023-01-02 and the A2000 at 2021-11-22. The predecessor of the RTX 4090 Mobile is the GeForce 30 Mobile, while the A2000's predecessor is the Quadro Turing. The successors are GeForce 50 Mobile and Workstation Ada, respectively.