NVIDIA RTX A5000 Mobile vs NVIDIA RTX PRO 4000 Blackwell Comparison

The NVIDIA RTX PRO 4000 Blackwell is decisively faster than the NVIDIA RTX A5000 Mobile across every benchmark in the comparison, making the A5000 Mobile effectively obsolete for performance-driven tasks. The RTX PRO 4000 wins all 8 head-to-head tests, with its smallest victory being a 34.7% lead in Passmark DirectX 12 and its largest a 120.3% lead in Geekbench Vulkan. While the A5000 Mobile is an end-of-life product, the data indicates that the RTX PRO 4000 Blackwell is not merely a generational step but a complete performance tier above it, offering roughly double the compute throughput in most scenarios.

Where Each One Wins

The benchmark results offer no ambiguity: the NVIDIA RTX PRO 4000 Blackwell wins in every single category tested. The A5000 Mobile holds zero victories, meaning there is no workload in this dataset where the older card comes out ahead. This is a complete sweep. The RTX PRO 4000 Blackwell’s dominance spans legacy DirectX 9 and 10 APIs, modern DirectX 11 and 12 APIs, Vulkan, 2D graphics, 3D graphics, and general-purpose GPU compute.

For users running older applications that rely on DirectX 9 or DirectX 10, the RTX PRO 4000 Blackwell is 109.5% and 50.4% faster, respectively. In modern DirectX 11 workloads, it more than doubles the A5000 Mobile’s score with a 107.5% lead. The gap narrows slightly in DirectX 12, where the RTX PRO 4000 Blackwell is 34.7% ahead, but this remains a substantial margin. The compute-oriented Passmark GPU Compute test shows the RTX PRO 4000 Blackwell at 113.2% ahead, and the Vulkan API test shows a 120.3% lead, indicating that the new card’s architecture scales exceptionally well in both low-level and general compute contexts.

The only area where the A5000 Mobile does not lose by a massive margin is in the Passmark DirectX 12 test, where its score of 72 is 34.7% behind the RTX PRO 4000 Blackwell’s 97. However, even this "closest" result represents a clear defeat. Essentially, the RTX PRO 4000 Blackwell is the only choice for any workload requiring maximum performance across the board, while the A5000 Mobile offers no unique advantage in any measured category.

Architecture Differences

The architectural gap between these two GPUs is vast and explains the benchmark disparity. The RTX PRO 4000 Blackwell is built on the GB203 chip using a 5 nm process at TSMC, while the A5000 Mobile uses the GA104 chip on an 8 nm process at Samsung. This node advantage allows the RTX PRO 4000 Blackwell to pack 45,600 million transistors into a 378 mm² die, achieving a transistor density of 120.6 million per mm². In contrast, the A5000 Mobile has only 17,400 million transistors on a larger 392 mm² die, resulting in a density of just 44.4 million per mm². The Blackwell chip is more than 2.6 times denser, which is a fundamental driver of its performance advantage.

The compute resources reflect this architectural leap. The RTX PRO 4000 Blackwell features 8,960 shading units, 280 TMUs, and 70 RT cores, compared to the A5000 Mobile’s 6,144 shading units, 192 TMUs, and 48 RT cores. Both have 96 ROPs, but the RTX PRO 4000 Blackwell has 280 tensor cores versus the A5000 Mobile’s 192. Consequently, the RTX PRO 4000 Blackwell achieves 36.83 TFLOPS of FP32 and FP16 performance (1:1 ratio), while the A5000 Mobile manages 19.35 TFLOPS in both. This is nearly a 2x raw compute advantage for the Blackwell part.

Memory architecture also diverges significantly. The RTX PRO 4000 Blackwell uses 24 GB of GDDR7 memory on a 192-bit bus, delivering 672.0 GB/s of bandwidth. The A5000 Mobile uses 16 GB of GDDR6 memory on a wider 256-bit bus, but achieves only 448.0 GB/s. Despite having a narrower bus, the much faster GDDR7 memory (28 Gbps effective versus 14 Gbps effective) gives the RTX PRO 4000 Blackwell a 50% bandwidth advantage. Clock speeds further separate them: the RTX PRO 4000 Blackwell boosts to 2055 MHz from a 1230 MHz base, while the A5000 Mobile boosts to 1575 MHz from a 900 MHz base. The RTX PRO 4000 Blackwell also uses a PCIe 5.0 x16 interface, while the A5000 Mobile is limited to PCIe 4.0 x16.

Head-to-Head Benchmarks

The largest single benchmark victory for the RTX PRO 4000 Blackwell is in Geekbench Vulkan, where it scores 194,168 against the A5000 Mobile’s 88,144, a delta of 120.3%. This is a resounding statement about the Blackwell architecture’s efficiency in low-level API workloads, likely benefiting from the newer design and higher memory bandwidth. In Passmark GPU Compute, the RTX PRO 4000 Blackwell scores 14,805 versus 6,945, a 113.2% lead. This indicates that for non-graphics compute tasks, the RTX PRO 4000 Blackwell is effectively twice as fast.

In DirectX 11, the RTX PRO 4000 Blackwell scores 276 versus 133, a 107.5% delta, while in DirectX 9 it scores 354 versus 169, a 109.5% delta. These nearly identical percentage leads in two different API generations suggest that the performance gap is consistent regardless of driver overhead or API age. The Passmark DirectX 10 test shows a smaller but still substantial lead of 50.4% (173 versus 115). The Passmark G3D test, which is a broad measure of 3D gaming and rendering performance, shows the RTX PRO 4000 Blackwell at 28,427 versus 15,779, an 80.2% lead.

The 2D test (Passmark G2D) shows a 101.1% delta, with scores of 1,265 versus 629, indicating that even basic desktop and 2D acceleration are dramatically faster on the new card. The closest contest is Passmark DirectX 12, where the RTX PRO 4000 Blackwell scores 97 versus 72, a 34.7% lead. This is the only test where the RTX PRO 4000 Blackwell fails to at least double the A5000 Mobile’s score, but it still represents a solid win. Overall, the data shows a consistent pattern: the RTX PRO 4000 Blackwell is between 34.7% and 120.3% faster in every test.

FAQ

Q: Is the RTX PRO 4000 Blackwell faster than the A5000 Mobile in every benchmark?

A: Yes, the RTX PRO 4000 Blackwell wins all 8 head-to-head benchmark tests, with no wins for the A5000 Mobile.

Q: What is the biggest performance gap between the two cards?

A: The largest gap is in Geekbench Vulkan, where the RTX PRO 4000 Blackwell scores 194,168 versus 88,144, a 120.3% advantage.

Q: How does the memory bandwidth compare between the two GPUs?

A: The RTX PRO 4000 Blackwell has 672.0 GB/s of bandwidth from 24 GB of GDDR7 on a 192-bit bus, while the A5000 Mobile has 448.0 GB/s from 16 GB of GDDR6 on a 256-bit bus.

Q: Which card has a more advanced manufacturing process?

A: The RTX PRO 4000 Blackwell uses a 5 nm TSMC process, while the A5000 Mobile uses an 8 nm Samsung process.

Q: What is the difference in raw FP32 compute power?

A: The RTX PRO 4000 Blackwell delivers 36.83 TFLOPS, which is nearly double the A5000 Mobile’s 19.35 TFLOPS.

Q: Is the A5000 Mobile still in production?

A: No, the production status for the RTX A5000 Mobile is listed as End-of-life, while the RTX PRO 4000 Blackwell is Active.

Specification Differences

The following table lists the key specifications where the two GPUs differ, based solely on the data provided.

| Specification | NVIDIA RTX PRO 4000 Blackwell | NVIDIA RTX A5000 Mobile |

| :--- | :--- | :--- |

| Chip | GB203 | GA104 |

| Architecture | Blackwell 2.0 | Ampere |

| Process Node | 5 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 45,600 million | 17,400 million |

| Die Size | 378 mm² | 392 mm² |

| Transistor Density | 120.6M / mm² | 44.4M / mm² |

| Base Clock | 1230 MHz | 900 MHz |

| Boost Clock | 2055 MHz | 1575 MHz |

| Memory Speed | 1750 MHz 28 Gbps effective | 1750 MHz 14 Gbps effective |

| Memory Size | 24 GB | 16 GB |

| Memory Type | GDDR7 | GDDR6 |

| Memory Bus Width | 192 bit | 256 bit |

| Memory Bandwidth | 672.0 GB/s | 448.0 GB/s |

| Shading Units | 8960 | 6144 |

| TMUs | 280 | 192 |

| RT Cores | 70 | 48 |

| Tensor Cores | 280 | 192 |

| Pixel Rate | 197.3 GPixel/s | 151.2 GPixel/s |

| Texture Rate | 575.4 GTexel/s | 302.4 GTexel/s |

| FP32 Performance | 36.83 TFLOPS | 19.35 TFLOPS |

| FP16 Performance | 36.83 TFLOPS (1:1) | 19.35 TFLOPS (1:1) |

| TDP | 140 W | 150 W |

| Power Connectors | 1x 16-pin | None |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 4x DisplayPort 2.1b | Portable Device Dependent |

| Production Status | Active | End-of-life |

| Release Date | 2025-03-17 | 2021-04-11 |

| Predecessor | Workstation Ada | Quadro Turing-M |

| Successor | None | Ada-MW |

| Slot Width | Single-slot | Not specified |

| Suggested PSU | 300 W | Not specified |

| Dimensions | 241 mm x 111 mm x 20 mm | Not specified |

| Average Benchmark Score | 27135 | 24763 |

| Percentile vs All GPUs | 72 | 70 |

The Verdict

The verdict is clear from the data: the NVIDIA RTX PRO 4000 Blackwell is the superior GPU in every measurable way. Its average benchmark score of 27,135 places it in the 72nd percentile of all GPUs, while the A5000 Mobile’s average of 24,763 sits in the 70th percentile. The RTX PRO 4000 Blackwell’s nearest rivals include the NVIDIA GeForce RTX 3090 (with a delta of -1.6%) and the AMD Radeon RX 6700 XT (delta -1.1%), indicating it competes with desktop flagship cards from the previous generation. In contrast, the A5000 Mobile’s nearest rivals are the AMD Radeon RX 590 (delta 0.1%) and the Intel Arc A350M (delta 0.5%), placing it in a much lower performance class.

Users should choose the RTX PRO 4000 Blackwell for any application requiring maximum performance, whether in DirectX 9, 10, 11, 12, or Vulkan. Its 120.3% lead in Vulkan and 113.2% lead in compute make it the obvious choice for GPU-accelerated workloads and modern game engines. The 24 GB of GDDR7 memory also provides double the capacity of the A5000 Mobile, which is critical for large datasets or high-resolution textures. The RTX PRO 4000 Blackwell is also the only active product, while the A5000 Mobile is end-of-life, meaning driver support and availability will only favor the newer card over time.

There is no scenario in the data where the A5000 Mobile is the recommended choice. Its only advantage is its lower TDP of 150 W versus 140 W, which is negligible and does not translate into any performance benefit. It also uses a wider 256-bit memory bus, but the slower GDDR6 memory makes this irrelevant. For anyone considering the A5000 Mobile, the benchmark results show that the RTX PRO 4000 Blackwell is a minimum of 34.7% faster and often more than twice as fast, making it the definitive winner in this comparison.