AMD Ryzen Z2 A GPU vs NVIDIA GeForce RTX 4080 Mobile Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark results for the AMD Ryzen Z2 A GPU and the NVIDIA GeForce RTX 4080 Mobile. The AMD Ryzen Z2 A GPU has no benchmark entries in the database, while the NVIDIA GeForce RTX 4080 Mobile has nine recorded scores across standard graphics tests. This absence of comparative data means the analysis must rely on the available specifications and the NVIDIA part's measured performance relative to its own nearest rivals.

The RTX 4080 Mobile delivers substantial measured performance in the database. Its Geekbench OpenCL score of 159,575 and Vulkan score of 145,807 indicate strong compute and graphics throughput. In PassMark tests, the GPU scores 24,926 in G3D, 11,191 in GPU compute, 929 in G2D, 286 in DirectX 9, 244 in DirectX 11, 157 in DirectX 10, and 96 in DirectX 12. The average benchmark score across all entries is 38,135, placing the GPU in the 81st percentile of all GPUs in the database.

The nearest rivals for the RTX 4080 Mobile reveal a tight cluster. The NVIDIA GeForce MX570 posts an average score of 38,299, which is 0.4% below the RTX 4080 Mobile. The NVIDIA GeForce RTX 5080 Mobile scores 38,349, also 0.4% lower. The NVIDIA GeForce RTX 4070 averages 37,648, 1.3% lower, and the NVIDIA Tesla P4 averages 37,628, also 1.3% lower. These deltas show the RTX 4080 Mobile sits at the top of its immediate performance group, but only by a narrow margin. The data indicates the RTX 4080 Mobile is effectively performance-equivalent to the MX570 and RTX 5080 Mobile, while holding a slight edge over the RTX 4070 and Tesla P4.

Because the AMD Ryzen Z2 A GPU has no benchmark scores, its percentile ranking of 50 is a placeholder rather than a measured result. No wins are recorded for either part in the head-to-head table, and the wins counters show zero for both. The database simply lacks comparative measurements for this pairing.

Architecture Differences

The two GPUs come from different design generations and process nodes. The AMD Ryzen Z2 A GPU uses the Van Gogh chip based on RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The NVIDIA GeForce RTX 4080 Mobile uses the AD104 chip based on Ada Lovelace architecture, fabricated on a 5 nm process, also at TSMC. The transistor counts differ sharply: the AMD chip contains 2,400 million transistors on a 163 mm² die, giving a density of 14.7 million transistors per mm². The NVIDIA chip contains 35,800 million transistors on a 294 mm² die, with a density of 121.8 million per mm². The NVIDIA part packs over 14 times more transistors into less than double the die area.

The AMD GPU is a console-class part with 512 shading units, 32 texture mapping units, and 16 raster operation units. It includes 8 ray tracing cores and no tensor cores. The NVIDIA GPU is a mobile discrete part with 7,424 shading units, 232 TMUs, and 80 ROPs. It includes 58 ray tracing cores and 232 tensor cores. The NVIDIA part has 14.5 times the shading units, 7.25 times the TMUs, and 5 times the ROPs compared to the AMD part.

Clock speeds also differ. The AMD chip runs at a 1000 MHz base clock and 1600 MHz boost clock. The NVIDIA chip runs at a 1290 MHz base clock and 1665 MHz boost clock. The AMD memory clock is 800 MHz with 6.4 Gbps effective speed, while the NVIDIA memory clock is 2250 MHz with 18 Gbps effective speed. The AMD GPU ships with 16 GB of LPDDR5 memory on a 128-bit bus, yielding 102.4 GB/s bandwidth. The NVIDIA GPU ships with 12 GB of GDDR6 memory on a 192-bit bus, yielding 432.0 GB/s bandwidth. Despite having 4 GB less memory, the NVIDIA part delivers over four times the memory bandwidth.

Pixel and texture rates reflect the wider execution resources. The AMD GPU achieves 25.60 GPixel/s and 51.20 GTexel/s. The NVIDIA GPU achieves 133.2 GPixel/s and 386.3 GTexel/s. Floating point performance follows the same pattern: the AMD part delivers 1.638 TFLOPS FP32 and 3.277 TFLOPS FP16 with a 2:1 ratio. The NVIDIA part delivers 24.72 TFLOPS FP32 and 24.72 TFLOPS FP16 with a 1:1 ratio. The NVIDIA GPU is roughly 15 times faster in FP32 and 7.5 times faster in FP16.

Power targets differ accordingly. The AMD Ryzen Z2 A GPU has a 15 W TDP, while the NVIDIA GeForce RTX 4080 Mobile has a 110 W TDP. The NVIDIA part consumes over seven times the power budget. The NVIDIA GPU uses a PCIe 4.0 x16 bus interface, while the AMD part lists no bus interface. Display outputs also differ: the AMD GPU provides 1x USB Type-C, while the NVIDIA GPU is marked as portable device dependent.

Both GPUs support the same API feature set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part belongs to the GeForce 40-series, with a predecessor in the GeForce 30 Mobile and a successor in the GeForce 50 Mobile. The AMD part is listed as a console GPU without a series, predecessor, or successor. The NVIDIA part released on January 2, 2023, while the AMD part released on December 31, 2024.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA GeForce RTX 4080 Mobile has 7,424 shading units, compared to 512 on the AMD Ryzen Z2 A GPU.

Q: How does memory bandwidth compare between the two?

A: The NVIDIA GPU provides 432.0 GB/s bandwidth from 12 GB of GDDR6 on a 192-bit bus. The AMD GPU provides 102.4 GB/s from 16 GB of LPDDR5 on a 128-bit bus.

Q: What is the power consumption difference?

A: The AMD Ryzen Z2 A GPU has a 15 W TDP. The NVIDIA GeForce RTX 4080 Mobile has a 110 W TDP.

Q: Do both support the same DirectX version?

A: Yes, both list DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4.

Q: Which GPU has ray tracing cores?

A: Both have ray tracing hardware. The AMD GPU has 8 ray tracing cores, while the NVIDIA GPU has 58.

Q: What benchmark scores exist for the AMD Ryzen Z2 A GPU?

A: The database contains no benchmark scores for the AMD part. Its percentile ranking of 50 is not backed by measured results.

Specification Differences

| Specification | AMD Ryzen Z2 A GPU | NVIDIA GeForce RTX 4080 Mobile |

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

| Architecture | RDNA 2.0 | Ada Lovelace |

| Process node | 7 nm | 5 nm |

| Transistors | 2,400 million | 35,800 million |

| Die size | 163 mm² | 294 mm² |

| Transistor density | 14.7M / mm² | 121.8M / mm² |

| Base clock | 1000 MHz | 1290 MHz |

| Boost clock | 1600 MHz | 1665 MHz |

| Memory clock | 800 MHz, 6.4 Gbps effective | 2250 MHz, 18 Gbps effective |

| Memory size | 16 GB | 12 GB |

| Memory type | LPDDR5 | GDDR6 |

| Memory bus width | 128 bit | 192 bit |

| Memory bandwidth | 102.4 GB/s | 432.0 GB/s |

| Shading units | 512 | 7,424 |

| TMUs | 32 | 232 |

| ROPs | 16 | 80 |

| Ray tracing cores | 8 | 58 |

| Tensor cores | None | 232 |

| Pixel rate | 25.60 GPixel/s | 133.2 GPixel/s |

| Texture rate | 51.20 GTexel/s | 386.3 GTexel/s |

| FP32 performance | 1.638 TFLOPS | 24.72 TFLOPS |

| FP16 performance | 3.277 TFLOPS (2:1) | 24.72 TFLOPS (1:1) |

| TDP | 15 W | 110 W |

| Bus interface | Not listed | PCIe 4.0 x16 |

| Display outputs | 1x USB Type-C | Portable device dependent |

| Release date | December 31, 2024 | January 2, 2023 |

| Predecessor | None listed | GeForce 30 Mobile |

| Successor | None listed | GeForce 50 Mobile |

| Production status | Active | Active |

The Verdict

The data shows two GPUs engineered for entirely different roles. The AMD Ryzen Z2 A GPU is a 15 W console-class part with 512 shading units, 16 GB of LPDDR5, and 1.638 TFLOPS FP32 performance. The NVIDIA GeForce RTX 4080 Mobile is a 110 W mobile discrete GPU with 7,424 shading units, 12 GB of GDDR6, and 24.72 TFLOPS FP32 performance.

Benchmark results exist only for the NVIDIA part, with an average score of 38,135 across nine tests and an 81st percentile ranking. The AMD part has no measured scores, so its 50th percentile ranking carries no empirical weight. The nearest rival data for the RTX 4080 Mobile shows it within 1.3% of four other GPUs, including the RTX 4070 and Tesla P4, placing it in a tightly contested performance band.

For users prioritizing raw graphics throughput, the RTX 4080 Mobile is the clear choice from the recorded specifications. It delivers roughly 15 times the FP32 compute, over four times the memory bandwidth, and 5 times the pixel rate of the AMD part. The NVIDIA GPU also includes 232 tensor cores, which the AMD part lacks entirely.

For users constrained by power, the AMD Ryzen Z2 A GPU consumes 15 W compared to 110 W for the NVIDIA part. That 95 W difference represents a significant thermal and battery budget advantage. The AMD part also offers 4 GB more memory, although at substantially lower bandwidth.

The production status of both GPUs is active. The NVIDIA part has a known successor in the GeForce 50 Mobile, while the AMD part lists no successor. Release dates differ by roughly two years, with the NVIDIA part appearing in January 2023 and the AMD part in December 2024.

The verdict from the database is straightforward: the RTX 4080 Mobile dominates in every measured and specified performance category, while the Ryzen Z2 A GPU offers a low-power alternative with more memory capacity. Users who need maximum frame rates and compute throughput should select the NVIDIA part. Users who need minimal power draw and higher memory capacity should select the AMD part. There is no benchmark evidence to suggest the AMD part can compete with the NVIDIA part on performance, and no power data to suggest the NVIDIA part can match the AMD part's efficiency profile.