NVIDIA GeForce RTX 5080 Mobile vs NVIDIA RTX A1000 Mobile Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX A1000 Mobile has an average benchmark score of 47743, while the NVIDIA GeForce RTX 5080 Mobile averages 38349. The A1000 Mobile sits at the 85th percentile of all GPUs, whereas the RTX 5080 Mobile is at the 81st percentile.

Q: How does the RTX 5080 Mobile compare to the A1000 Mobile in OpenCL performance?

A: In the Geekbench OpenCL test, the RTX 5080 Mobile scores 166986, which is 70.8% higher than the A1000 Mobile’s 48703. The Vulkan test shows a similar gap, with the RTX 5080 Mobile at 169754 versus 46782, a 72.4% difference.

Q: What are the memory specifications for each GPU?

A: The A1000 Mobile has 4 GB of GDDR6 memory on a 128-bit bus, delivering 176.0 GB/s bandwidth. The RTX 5080 Mobile features 16 GB of GDDR7 memory on a 256-bit bus, providing 896.0 GB/s bandwidth.

Q: Which GPU has a higher transistor density?

A: The RTX 5080 Mobile, built on a 5 nm process at TSMC, has a transistor density of 120.6M per mm². The A1000 Mobile, fabricated on Samsung’s 8 nm node, achieves 43.5M per mm².

Q: What is the difference in shading units between the two?

A: The A1000 Mobile has 2048 shading units, while the RTX 5080 Mobile has 7680, a 3.75x difference. The RTX 5080 Mobile also has 240 texture mapping units and 96 ROPs, versus 64 TMUs and 32 ROPs on the A1000 Mobile.

Q: Which GPU is still in production?

A: The RTX 5080 Mobile is marked as Active, while the A1000 Mobile is End-of-life. The A1000 Mobile was released on 2022-03-29, and the RTX 5080 Mobile launched on 2025-04-01.

Architecture Differences

The two GPUs come from entirely different architectural generations. The NVIDIA RTX A1000 Mobile is based on the Ampere architecture, specifically the GA107 chip, fabricated on Samsung’s 8 nm process. It uses 8,700 million transistors on a 200 mm² die, yielding a transistor density of 43.5M per mm². In contrast, the NVIDIA GeForce RTX 5080 Mobile is built on the Blackwell 2.0 architecture with the GB203 chip, produced on TSMC’s 5 nm node. This chip packs 45,600 million transistors into a 378 mm² die, achieving a density of 120.6M per mm².

The RTX 5080 Mobile’s newer process node enables a significantly higher transistor count and density, which translates to more compute resources. The A1000 Mobile is an older, end-of-life product from the Ampere-MW generation, while the RTX 5080 Mobile is an active GeForce 50-series part.

Key feature differences include the number of RT cores and tensor cores. The A1000 Mobile has 16 RT cores and 64 tensor cores, while the RTX 5080 Mobile has 60 RT cores and 240 tensor cores. This suggests a substantial jump in ray tracing and AI acceleration capabilities, though specific performance metrics for those features are not directly recorded.

Memory architecture also differs. The A1000 Mobile uses 4 GB of GDDR6 with a 128-bit bus and 176.0 GB/s bandwidth. The RTX 5080 Mobile uses 16 GB of GDDR7 on a 256-bit bus, quadrupling capacity and offering 896.0 GB/s bandwidth, which is over five times higher.

The bus interface also differs: the A1000 Mobile uses PCIe 4.0 x8, while the RTX 5080 Mobile uses PCIe 5.0 x16. Both GPUs are IGP slot width with no power connectors, but the thermal design power differs, with the A1000 Mobile at 60 W and the RTX 5080 Mobile at 80 W.

The Verdict

The data clearly favors the NVIDIA GeForce RTX 5080 Mobile for raw performance in compute-heavy workloads. In both recorded head-to-head benchmarks, the RTX 5080 Mobile wins decisively: it is 70.8% ahead in OpenCL and 72.4% ahead in Vulkan. The RTX 5080 Mobile’s 16 GB GDDR7 memory and 896.0 GB/s bandwidth also make it the obvious choice for tasks requiring large datasets or high-resolution textures.

However, the NVIDIA RTX A1000 Mobile holds a higher average benchmark score (47743 vs 38349) and a better percentile ranking (85th vs 81st) across all GPUs in the database. This is because the A1000 Mobile’s average is derived from only two Geekbench tests, while the RTX 5080 Mobile’s average includes a wider range of benchmarks, including lower-scoring DirectX 9, 10, 11, and 12 tests. The A1000 Mobile’s average is skewed by its consistent performance in OpenCL and Vulkan, while the RTX 5080 Mobile’s average is pulled down by tests that may not fully utilize its architecture.

For a user prioritizing compute performance in OpenCL or Vulkan, the RTX 5080 Mobile is the clear winner. For a user looking at the broader benchmark database, the A1000 Mobile appears more consistent, but this is a function of the limited test set. The RTX 5080 Mobile is also the only one of the two with active production status, making it the more forward-looking choice for new systems.

Specification Differences

| Specification | NVIDIA RTX A1000 Mobile | NVIDIA GeForce RTX 5080 Mobile |

|----------------|-------------------------|-------------------------------|

| Architecture | Ampere | Blackwell 2.0 |

| Process Node | 8 nm (Samsung) | 5 nm (TSMC) |

| Transistors | 8,700 million | 45,600 million |

| Die Size | 200 mm² | 378 mm² |

| Transistor Density | 43.5M / mm² | 120.6M / mm² |

| Base Clock | 630 MHz | 975 MHz |

| Boost Clock | 1140 MHz | 1500 MHz |

| Memory Clock | 1375 MHz, 11 Gbps effective | 1750 MHz, 28 Gbps effective |

| Memory Size | 4 GB | 16 GB |

| Memory Type | GDDR6 | GDDR7 |

| Memory Bus Width | 128 bit | 256 bit |

| Memory Bandwidth | 176.0 GB/s | 896.0 GB/s |

| Shading Units | 2048 | 7680 |

| TMUs | 64 | 240 |

| ROPs | 32 | 96 |

| RT Cores | 16 | 60 |

| Tensor Cores | 64 | 240 |

| Pixel Rate | 36.48 GPixel/s | 144.0 GPixel/s |

| Texture Rate | 72.96 GTexel/s | 360.0 GTexel/s |

| FP32 | 4.669 TFLOPS | 23.04 TFLOPS |

| FP16 | 4.669 TFLOPS (1:1) | 23.04 TFLOPS (1:1) |

| TDP | 60 W | 80 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 5.0 x16 |

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

| Release Date | 2022-03-29 | 2025-04-01 |

| Predecessor | Quadro Turing-M | GeForce 40 Mobile |

Head-to-Head Benchmarks

The database records two direct head-to-head comparisons between these GPUs, and the RTX 5080 Mobile wins both.

In the Geekbench OpenCL test, the RTX 5080 Mobile scores 166986, while the A1000 Mobile scores 48703. This represents a 70.8% delta, meaning the RTX 5080 Mobile is more than three times faster in raw compute throughput. The A1000 Mobile’s score is close to its nearest rivals: the AMD Radeon RX 6800 XT averages 48477 (1.5% higher), and the AMD Radeon RX 6550M averages 46702 (2.2% lower). This places the A1000 Mobile in a competitive tier with mid-range desktop and mobile GPUs, but far below the RTX 5080 Mobile.

The Geekbench Vulkan test shows an even larger gap. The RTX 5080 Mobile scores 169754, versus 46782 for the A1000 Mobile, a 72.4% difference. While the A1000 Mobile’s Vulkan score is within 2.5% of its rivals (the Intel Arc A530M averages 46614 and the AMD Radeon RX 5600M averages 46601), the RTX 5080 Mobile is in an entirely different performance class.

Interestingly, the RTX 5080 Mobile’s nearest rivals in the overall database are not high-end parts. Its average score of 38349 is nearly matched by the NVIDIA GeForce MX570 (38299, 0.1% higher), the NVIDIA GeForce RTX 4080 Mobile (38135, 0.6% higher), and the NVIDIA GeForce MX570 A (38691, 0.9% lower). This suggests that the RTX 5080 Mobile’s average is heavily influenced by its lower-scoring DirectX tests, such as the Passmark DirectX 9 score of 314, DirectX 10 score of 171, DirectX 11 score of 253, and DirectX 12 score of 116. In contrast, its Passmark G3D score of 27711 and GPU compute score of 12134 are robust, but they are averaged with the weaker legacy DirectX results.

The A1000 Mobile, by contrast, has no recorded DirectX benchmark scores, so its average is based solely on OpenCL and Vulkan, both of which are strong. This methodological difference explains why the older, less powerful GPU shows a higher average score despite losing every head-to-head test.

For users relying on modern APIs like Vulkan and OpenCL, the RTX 5080 Mobile is the superior choice by a wide margin. For users who might prioritize legacy DirectX performance, the data shows the RTX 5080 Mobile has mixed results, but its G3D score of 27711 is still far above the A1000 Mobile’s unrecorded DirectX performance. The overall picture is unambiguous: in every directly comparable test, the RTX 5080 Mobile dominates.