NVIDIA RTX 2000 Ada Generation vs NVIDIA RTX A4000 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a clear split between the two adapters. The NVIDIA RTX A4000 Mobile wins 2 of the 9 shared tests, while the NVIDIA RTX 2000 Ada Generation takes 7. However, the margin of victory matters more than the raw count. The RTX A4000 Mobile's wins are decisive, while the RTX 2000 Ada Generation's triumphs are often narrower, though it does dominate in several specific workloads.

The largest single-test gap belongs to the RTX A4000 Mobile in Geekbench OpenCL. It scores 97,178 against 78,074, a 24.5% advantage. This is a substantial lead in a compute-oriented API, and it underlines the A4000 Mobile's raw FP32 throughput advantage. The other A4000 Mobile win comes in Passmark DirectX 10, where it posts 105 versus 82, a 28% margin. That is the second-largest percentage delta in the entire comparison.

The RTX 2000 Ada Generation's biggest win is in Passmark G2D, scoring 1072 against 585, a 45.4% lead. This measures 2D graphics performance, and the gap is enormous. It also wins Passmark DirectX 9 by 27.3%, scoring 216 versus 157. In Passmark GPU Compute, it leads 7834 to 6394, an 18.4% advantage. The Geekbench Vulkan test goes to the RTX 2000 Ada Generation by 12.4%, with scores of 83,360 and 73,002. Passmark G3D, the broader 3D graphics test, favors the RTX 2000 Ada Generation by 12.6%, 16,927 versus 14,796. Two other DirectX tests are close: DirectX 11 goes to the RTX 2000 Ada Generation by 8% (138 vs 127), and DirectX 12 by 7% (71 vs 66). In both cases, the newer Ada card edges ahead, but the margins are modest.

Looking at the average benchmark scores across all recorded tests, the RTX A4000 Mobile sits at 21,379, while the RTX 2000 Ada Generation sits at 18,954. That is roughly an 11% overall gap in favor of the older mobile part. The percentile rankings tell a similar story: the RTX A4000 Mobile sits at the 66th percentile against all GPUs, while the RTX 2000 Ada Generation sits at the 63rd percentile. The RTX A4000 Mobile's nearest rivals include the AMD Radeon HD 8970M (0.7% behind), the AMD Radeon RX Vega M GL (1.1% behind), and the NVIDIA GeForce RTX 5050 (1.6% behind). It sits 1.2% ahead of the NVIDIA Quadro RTX 5000. The RTX 2000 Ada Generation's closest competitors are the NVIDIA Quadro K6000 (0.4% behind), the AMD Radeon RX 6600 (0.4% behind), and the NVIDIA GeForce RTX 4050 Mobile (0.5% behind), with the NVIDIA Tesla K80 0.5% behind it. Both cards are tightly clustered with their peers, but the RTX A4000 Mobile is positioned slightly higher in the overall distribution.

Architecture Differences

The two GPUs come from different architectural generations, which explains most of their behavioral differences. The RTX A4000 Mobile uses the GA104 chip, built on the Ampere architecture, fabricated on an 8 nm process at Samsung. The RTX 2000 Ada Generation uses the AD107 chip, built on Ada Lovelace, fabricated on a 5 nm process at TSMC. The process shrink is significant: 8 nm versus 5 nm. The die sizes diverge sharply. The GA104 die measures 392 mm², while the AD107 die measures just 159 mm². Despite the smaller die, the AD107 packs more transistors: 18,900 million versus 17,400 million. Transistor density tells the story clearly: the Ada chip reaches 118.9 million transistors per mm², while the Ampere chip reaches 44.4 million per mm². This is a fundamental manufacturing advantage for the newer part.

The compute configurations are very different. The RTX A4000 Mobile has 5,120 shading units, 160 texture mapping units, and 80 ROPs. It also carries 40 RT cores and 160 tensor cores. The RTX 2000 Ada Generation has fewer of everything: 2,816 shading units, 88 TMUs, 48 ROPs, 22 RT cores, and 88 tensor cores. Despite having roughly half the shading units, the Ada part achieves a smaller FP32 performance gap than the core count might suggest. The RTX A4000 Mobile delivers 17.20 TFLOPS FP32, while the RTX 2000 Ada Generation delivers 12.00 TFLOPS. Both offer FP16 at a 1:1 ratio with FP32, so the same TFLOPS figures apply to FP16. The RTX A4000 Mobile's pixel rate is 134.4 GPixel/s versus 102.2 GPixel/s for the Ada part. Texture rate is 268.8 GTexel/s versus 187.4 GTexel/s. In every raw throughput metric, the older Ampere chip is faster, but the newer Ada chip is more efficient per transistor and per mm².

Clock speeds tell the other side of the story. The RTX 2000 Ada Generation runs at a 1620 MHz base and 2130 MHz boost. The RTX A4000 Mobile runs at 1140 MHz base and 1680 MHz boost. The Ada part's boost clock is 450 MHz higher, which compensates for its smaller core count in many workloads. The memory subsystems differ as well. The RTX A4000 Mobile uses 8 GB of GDDR6 on a 256-bit bus, with a 384.0 GB/s bandwidth and 12 Gbps effective speed. The RTX 2000 Ada Generation uses 16 GB of GDDR6 on a 128-bit bus, with a 256.0 GB/s bandwidth and 16 Gbps effective speed. The A4000 Mobile has the wider bus and higher bandwidth, but the Ada part has twice the capacity and faster memory chips.

The power envelopes are also distinct. The RTX A4000 Mobile has a TDP of 115 W, while the RTX 2000 Ada Generation has a TDP of 70 W. The Ada part draws substantially less power while still delivering competitive performance in many tests. Both use no external power connectors, but the RTX 2000 Ada Generation lists a suggested PSU of 250 W, while the RTX A4000 Mobile lists none. The bus interfaces differ: the RTX A4000 Mobile uses PCIe 4.0 x16, while the RTX 2000 Ada Generation uses PCIe 4.0 x8. The Ada part is a dual-slot card measuring 168 mm in length and 69 mm in height, while the RTX A4000 Mobile's dimensions are listed as portable device dependent. Display outputs also differ: the RTX 2000 Ada Generation offers 4x mini-DisplayPort 1.4a, while the RTX A4000 Mobile's outputs are dependent on the portable device.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The NVIDIA RTX A4000 Mobile. It delivers 17.20 TFLOPS FP32 and FP16, versus 12.00 TFLOPS for the RTX 2000 Ada Generation. This is reflected in the Geekbench OpenCL result, where the A4000 Mobile leads by 24.5%.

Q: Which GPU has more memory and a wider bus?

A: No single GPU wins both. The RTX 2000 Ada Generation has 16 GB of GDDR6, while the RTX A4000 Mobile has 8 GB. However, the RTX A4000 Mobile has a 256-bit bus with 384.0 GB/s bandwidth, while the RTX 2000 Ada Generation has a 128-bit bus with 256.0 GB/s bandwidth.

Q: Why does the RTX 2000 Ada Generation win the Passmark G2D test by such a large margin?

A: The RTX 2000 Ada Generation scores 1072 in Passmark G2D, while the RTX A4000 Mobile scores 585. That is a 45.4% lead. The newer Ada architecture, combined with higher clock speeds (2130 MHz boost versus 1680 MHz boost), appears to provide a significant advantage in 2D graphics workloads.

Q: Which GPU is more power-efficient?

A: The RTX 2000 Ada Generation. It has a TDP of 70 W, while the RTX A4000 Mobile has a TDP of 115 W. The Ada part also uses a 5 nm process at TSMC versus the 8 nm process at Samsung, and it packs 118.9 million transistors per mm² versus 44.4 million per mm².

Q: In which DirectX tests does the RTX 2000 Ada Generation win?

A: The RTX 2000 Ada Generation wins Passmark DirectX 9 (216 vs 157), DirectX 11 (138 vs 127), and DirectX 12 (71 vs 66). The RTX A4000 Mobile wins only DirectX 10 (105 vs 82). The margins are largest in DirectX 9, at 27.3%.

Q: How do the two GPUs compare in overall average benchmark score?

A: The RTX A4000 Mobile has a higher average score of 21,379, while the RTX 2000 Ada Generation averages 18,954. The RTX A4000 Mobile also sits at a higher percentile rank, at 66 versus 63 for the RTX 2000 Ada Generation.

Specification Differences

The two GPUs differ across nearly every specification field. The RTX A4000 Mobile uses the GA104 chip on an 8 nm Samsung process, while the RTX 2000 Ada Generation uses the AD107 chip on a 5 nm TSMC process. Transistor counts are 17,400 million versus 18,900 million, with die sizes of 392 mm² versus 159 mm². Transistor density is 44.4M per mm² versus 118.9M per mm².

Clock speeds favor the Ada part: 1620 MHz base and 2130 MHz boost, versus 1140 MHz base and 1680 MHz boost. Memory speed is 1500 MHz (12 Gbps effective) for the A4000 Mobile, and 2000 MHz (16 Gbps effective) for the RTX 2000 Ada Generation. Memory capacity is 8 GB versus 16 GB, with bus widths of 256-bit versus 128-bit. Bandwidth is 384.0 GB/s versus 256.0 GB/s.

Compute units favor the Ampere part: 5,120 shading units, 160 TMUs, 80 ROPs, 40 RT cores, and 160 tensor cores, versus 2,816 shading units, 88 TMUs, 48 ROPs, 22 RT cores, and 88 tensor cores. Pixel rate is 134.4 GPixel/s versus 102.2 GPixel/s. Texture rate is 268.8 GTexel/s versus 187.4 GTexel/s. FP32 and FP16 are both 17.20 TFLOPS for the A4000 Mobile and 12.00 TFLOPS for the RTX 2000 Ada Generation.

Power and physical specs also diverge. The RTX A4000 Mobile has a TDP of 115 W with no slot width listed and no suggested PSU. The RTX 2000 Ada Generation has a TDP of 70 W, is dual-slot, lists a suggested PSU of 250 W, and measures 168 mm by 69 mm. The bus interface is PCIe 4.0 x16 for the A4000 Mobile and PCIe 4.0 x8 for the Ada part. Display outputs are portable device dependent for the A4000 Mobile, and 4x mini-DisplayPort 1.4a for the RTX 2000 Ada Generation.

Production status and release timing differ as well. The RTX A4000 Mobile is end-of-life, released on 2021-04-11. The RTX 2000 Ada Generation is active, released on 2024-02-11. The A4000 Mobile's predecessor is Quadro Turing-M, and its successor is Ada-MW. The RTX 2000 Ada Generation's predecessor is Workstation Ampere, and its successor is Blackwell PRO W. The RTX 2000 Ada Generation has a launch MSRP of 649 USD. The RTX A4000 Mobile has no recorded launch MSRP.

The Verdict

The data suggests a split decision based on workload priorities. The NVIDIA RTX A4000 Mobile is the stronger compute performer, with a 24.5% lead in Geekbench OpenCL and a 28% lead in Passmark DirectX 10. Its FP32 throughput of 17.20 TFLOPS is substantially higher than the 12.00 TFLOPS of the RTX 2000 Ada Generation. Its memory bandwidth of 384.0 GB/s is also higher, and its pixel and texture rates are superior. For compute-heavy tasks that rely on raw shader throughput, the A4000 Mobile is the better choice. Its higher average benchmark score of 21,379 versus 18,954, and its higher percentile rank of 66 versus 63, support this conclusion.

The NVIDIA RTX 2000 Ada Generation is the better choice for general graphics work, particularly in 2D and legacy DirectX workloads. Its 45.4% lead in Passmark G2D and 27.3% lead in DirectX 9 are decisive. It also leads in Passmark G3D by 12.6% and in GPU Compute by 18.4%. Its 16 GB memory capacity is double that of the A4000 Mobile, which matters for large datasets. Its lower TDP of 70 W versus 115 W makes it a more efficient part, and its 5 nm process with higher transistor density suggests a more modern design. The RTX 2000 Ada Generation's active production status and 2024 release date also indicate a longer support horizon.

For users who prioritize compute density and raw FP32 performance, the RTX A4000 Mobile is the data-backed pick. For users who prioritize 2D graphics, legacy DirectX compatibility, memory capacity, and power efficiency, the RTX 2000 Ada Generation is the clear winner. The benchmark data shows that the older Ampere part still holds a compute advantage, but the newer Ada part is more balanced across the full suite of tests. The RTX 2000 Ada Generation wins 7 of 9 head-to-head tests, and its wins include the most important general-purpose graphics metrics. The RTX A4000 Mobile's wins are narrower in count but larger in margin, making it a specialized tool for compute-heavy workflows.