AMD Ryzen Z2 A GPU vs NVIDIA GeForce RTX 5070 Mobile Comparison

Where Each One Wins

The benchmark data splits these two GPUs into entirely different performance classes. The NVIDIA GeForce RTX 5070 Mobile holds every recorded benchmark win, which is expected given the massive architectural and specification gap between the two parts. The AMD Ryzen Z2 A GPU has no recorded benchmark scores in the database, leaving it without a single measurable victory in any test suite.

The RTX 5070 Mobile posts a Geekbench OpenCL score of 122,238 and a Geekbench Vulkan score of 116,960. These compute-oriented workloads show the NVIDIA part operating at a level that the AMD Van Gogh chip cannot approach based on the recorded data. In PassMark testing, the RTX 5070 Mobile delivers a G3D score of 20,355, a GPU compute score of 8,279, and DirectX 11 performance of 192. The DirectX 9 score reaches 214, while DirectX 10 lands at 129 and DirectX 12 at 93. The G2D score of 896 rounds out the suite.

The RTX 5070 Mobile holds a 75th percentile position among all GPUs in the database, with an average benchmark score of 29,928. Its nearest rivals include the NVIDIA GeForce RTX 3070 Ti at 29,945 (a 0.1% deficit), the AMD Radeon RX 6800 at 30,095 (a 0.6% deficit), the AMD Radeon RX 6700 at 30,433 (a 1.7% deficit), and the NVIDIA GeForce RTX 2080 Ti at 29,783 (a 0.5% advantage). These margins place the RTX 5070 Mobile squarely in established high-end desktop territory from previous generations.

For the Ryzen Z2 A GPU, the database records a 50th percentile placement with zero benchmark entries and an average score of zero. The AMD part is an integrated GPU within a console-class processor, designed for a 15 W thermal envelope, whereas the RTX 5070 Mobile is a discrete mobile GPU rated at 50 W. The use-case split is therefore defined by the data: the RTX 5070 Mobile is for sustained high-throughput rendering and compute, while the Ryzen Z2 A GPU appears in low-power portable devices where the CPU and GPU share a single package and thermal budget.

Architecture Differences

The two chips come from different architectural generations and foundry processes. The AMD Ryzen Z2 A GPU uses the Van Gogh chip built on RDNA 2.0 architecture, manufactured on a 7 nm TSMC process. It contains 2,400 million transistors on a 163 mm² die, resulting in a transistor density of 14.7 million transistors per square millimeter. The NVIDIA GeForce RTX 5070 Mobile uses the GB206 chip built on Blackwell 2.0 architecture, manufactured on a 5 nm TSMC process. It packs 21,900 million transistors on a 181 mm² die, achieving a transistor density of 121.0 million transistors per square millimeter.

The transistor count difference is substantial: the RTX 5070 Mobile holds roughly nine times as many transistors as the Ryzen Z2 A GPU, yet its die is only 18 mm² larger. This reflects the density advantage of the 5 nm node over 7 nm. The Blackwell chip also uses a newer architecture with dedicated hardware that the RDNA 2.0 part lacks in comparable form.

Memory architecture differs fundamentally. The Ryzen Z2 A GPU uses 16 GB of LPDDR5 memory on a 128-bit bus, delivering 102.4 GB/s of bandwidth at an effective 6.4 Gbps. The RTX 5070 Mobile uses 8 GB of GDDR7 memory on the same 128-bit bus width, but bandwidth reaches 384.0 GB/s at an effective 24 Gbps. That is 3.75 times the memory bandwidth of the AMD part, a crucial factor for high-resolution textures and compute workloads.

Core counts show the NVIDIA part's scale advantage. The RTX 5070 Mobile has 4,608 shading units, 144 texture mapping units, 48 raster output units, 36 ray tracing cores, and 144 tensor cores. The Ryzen Z2 A GPU has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores, with no tensor cores listed. The pixel rate of the RTX 5070 Mobile is 68.40 GPixel/s versus 25.60 GPixel/s for the AMD part. Texture rate is 205.2 GTexel/s versus 51.20 GTexel/s. FP32 throughput is 13.13 TFLOPS versus 1.638 TFLOPS. FP16 throughput is 13.13 TFLOPS at 1:1 ratio for NVIDIA, while AMD delivers 3.277 TFLOPS at 2:1 ratio.

Thermal design power also separates them: 50 W for the RTX 5070 Mobile versus 15 W for the Ryzen Z2 A GPU. The NVIDIA part uses PCIe 5.0 x16 as its bus interface and has no power connectors (an IGP form factor), while the AMD part lists no bus interface and a single USB Type-C display output. The RTX 5070 Mobile's display outputs are described as portable device dependent. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA GeForce RTX 5070 Mobile delivers 13.13 TFLOPS of FP32 throughput, compared to 1.638 TFLOPS for the AMD Ryzen Z2 A GPU. The NVIDIA part is roughly eight times faster in raw single-precision compute.

Q: How do the memory bandwidth figures compare?

A: The RTX 5070 Mobile uses GDDR7 memory with 384.0 GB/s bandwidth, while the Ryzen Z2 A GPU uses LPDDR5 with 102.4 GB/s. The NVIDIA part holds a 3.75x bandwidth advantage on the same 128-bit bus width.

Q: What is the thermal design power of each part?

A: The AMD Ryzen Z2 A GPU is rated at 15 W, while the NVIDIA GeForce RTX 5070 Mobile is rated at 50 W. This reflects the AMD part's integrated console GPU positioning versus NVIDIA's discrete mobile GPU.

Q: Which GPU has more ray tracing cores?

A: The RTX 5070 Mobile has 36 ray tracing cores. The Ryzen Z2 A GPU has 8 ray tracing cores. The NVIDIA part also includes 144 tensor cores, which the AMD part does not list at all.

Q: What process nodes are used for each chip?

A: The AMD Van Gogh chip uses a 7 nm TSMC process, while the NVIDIA GB206 chip uses a 5 nm TSMC process. The NVIDIA chip packs 21,900 million transistors versus 2,400 million for AMD, with a density of 121.0M per mm² versus 14.7M per mm².

Q: How does the RTX 5070 Mobile compare to its nearest rivals?

A: The database shows the RTX 5070 Mobile with an average benchmark score of 29,928. It trails the NVIDIA GeForce RTX 3070 Ti by 0.1%, the AMD Radeon RX 6800 by 0.6%, and the AMD Radeon RX 6700 by 1.7%, while leading the NVIDIA GeForce RTX 2080 Ti by 0.5%.

Specification Differences

| Specification | AMD Ryzen Z2 A GPU | NVIDIA GeForce RTX 5070 Mobile |

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

| Architecture | RDNA 2.0 | Blackwell 2.0 |

| Process node | 7 nm | 5 nm |

| Transistors | 2,400 million | 21,900 million |

| Die size | 163 mm² | 181 mm² |

| Transistor density | 14.7M / mm² | 121.0M / mm² |

| Base clock | 1000 MHz | 907 MHz |

| Boost clock | 1600 MHz | 1425 MHz |

| Memory clock | 800 MHz 6.4 Gbps effective | 1500 MHz 24 Gbps effective |

| Memory size | 16 GB | 8 GB |

| Memory type | LPDDR5 | GDDR7 |

| Memory bandwidth | 102.4 GB/s | 384.0 GB/s |

| Shading units | 512 | 4608 |

| TMUs | 32 | 144 |

| ROPs | 16 | 48 |

| Ray tracing cores | 8 | 36 |

| Tensor cores | None | 144 |

| Pixel rate | 25.60 GPixel/s | 68.40 GPixel/s |

| Texture rate | 51.20 GTexel/s | 205.2 GTexel/s |

| FP32 performance | 1.638 TFLOPS | 13.13 TFLOPS |

| FP16 performance | 3.277 TFLOPS (2:1) | 13.13 TFLOPS (1:1) |

| TDP | 15 W | 50 W |

| Bus interface | None | PCIe 5.0 x16 |

| Display outputs | 1x USB Type-C | Portable Device Dependent |

| Release date | 2024-12-31 | 2025-04-14 |

Head-to-Head Benchmarks

The recorded benchmark data contains no head-to-head comparison entries between these two GPUs. The Ryzen Z2 A GPU has zero benchmark scores in the database, so no direct measurement exists to quantify the performance gap in a single test. The RTX 5070 Mobile, however, has nine recorded benchmarks that establish its performance level against the broader GPU population.

The largest measurable wins for the RTX 5070 Mobile come from compute workloads. Its Geekbench OpenCL score of 122,238 and Vulkan score of 116,960 represent the highest recorded results in the data set. PassMark GPU compute reaches 8,279, which is roughly 40% of the G3D score of 20,355, indicating strong compute scaling relative to graphics rendering.

In DirectX workloads, the RTX 5070 Mobile scores 214 in DirectX 9, 192 in DirectX 11, 129 in DirectX 10, and 93 in DirectX 12. The DirectX 12 score being lower than older API scores is consistent with heavier draw-call overhead and more complex rendering features in the newer API. The G2D score of 896 covers 2D graphics operations.

The average benchmark score for the RTX 5070 Mobile is 29,928, placing it at the 75th percentile of all GPUs in the database. Its nearest rival, the NVIDIA GeForce RTX 3070 Ti, averages 29,945, a difference of only 0.1%. The AMD Radeon RX 6800 sits 0.6% higher at 30,095, and the AMD Radeon RX 6700 leads by 1.7% at 30,433. The NVIDIA GeForce RTX 2080 Ti trails by 0.5% at 29,783. These margins show the RTX 5070 Mobile performing within a tight band around established high-end GPUs from previous generations, rather than clearly outperforming or underperforming any single one of them.

The Ryzen Z2 A GPU's lack of benchmark data means the database records no wins, no losses, and no average score for the AMD part. Its 50th percentile placement appears to be a default position rather than a measured result. The RTX 5070 Mobile, by contrast, demonstrates through recorded scores that it can compete with desktop-class GPUs from the prior generation, while operating within a 50 W mobile thermal envelope. The data indicates a clear performance hierarchy: the NVIDIA part occupies the upper half of the database distribution, while the AMD part's integrated design targets a fundamentally different power and performance tier.