AMD Ryzen Z2 Go GPU vs NVIDIA H20 Comparison

Head-to-Head Benchmarks

The recorded data contains no direct head-to-head benchmark results for the AMD Ryzen Z2 Go GPU versus the NVIDIA H20. Both products show an average benchmark score of 0 and a percentile rank of 50 against all GPUs in the database. This absence of comparative measurements means that any direct performance ranking between the two must be inferred from their architectural specifications, compute throughput, memory subsystems, and thermal envelopes.

The absence of benchmark data is itself informative. The AMD Ryzen Z2 Go GPU is a console-class integrated graphics solution with a 28 W thermal design power, while the NVIDIA H20 is a server accelerator with a 500 W thermal design power. The 472 W difference in power envelopes indicates that these products target entirely different workload classes. The database shows no overlap in their measured performance domains, which is consistent with their divergent market positions.

Without direct benchmark scores, the most reliable indicator of relative performance is the peak FP32 throughput. The NVIDIA H20 delivers 39.54 TFLOPS of FP32 compute, while the AMD Ryzen Z2 Go GPU delivers 4.147 TFLOPS. This represents a 9.53 times difference in raw single-precision compute capacity. The FP16 figures follow the same pattern: the H20 delivers 79.07 TFLOPS (2:1) versus 8.294 TFLOPS (2:1) for the AMD part, again a 9.53 times advantage.

Memory bandwidth presents an even larger gap. The NVIDIA H20 has 4.03 TB/s of bandwidth from its HBM3 memory, while the AMD Ryzen Z2 Go GPU has 102.4 GB/s from LPDDR5. This is a 39.4 times difference in memory bandwidth. The H20 also leads in memory capacity at 96 GB versus 16 GB, a 6 times difference. These figures indicate that the H20 is designed for memory-intensive server workloads, while the AMD part targets power-constrained mobile and handheld gaming scenarios.

The texture rate tells a similar story. The NVIDIA H20 achieves 617.8 GTexel/s, while the AMD Ryzen Z2 Go GPU achieves 129.6 GTexel/s, a 4.77 times difference. However, the pixel rate favors the AMD part: 86.40 GPixel/s versus 47.52 GPixel/s for the H20. This 1.82 times advantage in pixel throughput is notable because the H20 has far fewer ROPs (24 versus 32) despite having vastly more shading units. The H20's render output configuration is clearly not optimized for traditional rasterization workloads.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H20 delivers 39.54 TFLOPS FP32, which is 9.53 times higher than the AMD Ryzen Z2 Go GPU's 4.147 TFLOPS. This makes the H20 substantially more capable for general-purpose computing tasks that rely on single-precision arithmetic.

Q: How do the memory subsystems compare?

A: The NVIDIA H20 uses 96 GB of HBM3 with a 6144-bit bus and 4.03 TB/s bandwidth. The AMD Ryzen Z2 Go GPU uses 16 GB of LPDDR5 with a 128-bit bus and 102.4 GB/s bandwidth. The H20 has 6 times the capacity and 39.4 times the bandwidth.

Q: Which GPU has higher pixel fill rate?

A: The AMD Ryzen Z2 Go GPU achieves 86.40 GPixel/s, which is 1.82 times higher than the NVIDIA H20's 47.52 GPixel/s. This is despite the H20 having far more shading units and TMUs.

Q: What are the thermal design power requirements?

A: The AMD Ryzen Z2 Go GPU has a 28 W TDP, while the NVIDIA H20 has a 500 W TDP. The H20 also requires a 900 W suggested PSU, while the AMD part has no power connectors and uses a USB Type-C display output.

Q: What API support does each GPU offer?

A: The AMD Ryzen Z2 Go GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA H20 has no API support listed (N/A) for DirectX, OpenGL, or Vulkan, indicating it is not designed for consumer graphics applications.

Q: How do the architectures differ?

A: The AMD Ryzen Z2 Go GPU uses RDNA 2.0 architecture on a 6 nm TSMC process with 13,100 million transistors. The NVIDIA H20 uses Hopper architecture on a 5 nm TSMC process with 80,000 million transistors. The H20 has 6.11 times more transistors.

Architecture Differences

The AMD Ryzen Z2 Go GPU is built on the RDNA 2.0 architecture, manufactured on TSMC's 6 nm process. It features 13,100 million transistors on a 208 mm² die, giving a transistor density of 63.0 million per square millimeter. The chip is designated "Rembrandt+" and belongs to the Console GPU (AMD) generation. Its compute configuration includes 768 shading units, 48 texture mapping units, 32 render output units, and 12 ray tracing cores. It has no dedicated tensor cores.

The NVIDIA H20 is built on the Hopper architecture, manufactured on TSMC's 5 nm process. It features 80,000 million transistors on an 814 mm² die, giving a transistor density of 98.3 million per square millimeter. The chip is designated "GH100" and belongs to the Server Hopper (Hxx) generation. Its compute configuration includes 9984 shading units, 312 texture mapping units, 24 render output units, and 312 tensor cores. It has no ray tracing cores listed.

The transistor density difference is significant: the H20 packs 98.3 million transistors per square millimeter versus 63.0 million for the AMD part, a 1.56 times higher density. This reflects the more advanced 5 nm process node versus 6 nm. The H20's die is 3.91 times larger in area, which contributes to its much higher transistor count.

The memory architectures are fundamentally different. The AMD Ryzen Z2 Go GPU uses LPDDR5 memory with a 128-bit bus, operating at 800 MHz with 6.4 Gbps effective data rate, yielding 102.4 GB/s bandwidth. The NVIDIA H20 uses HBM3 memory with a 6144-bit bus, operating at 1313 MHz with 5.3 Gbps effective data rate, yielding 4.03 TB/s bandwidth. The H20's memory bus is 48 times wider.

The clock speeds also differ substantially. The AMD Ryzen Z2 Go GPU has a base clock of 800 MHz and a boost clock of 2700 MHz. The NVIDIA H20 has a base clock of 1830 MHz and a boost clock of 1980 MHz. The AMD part has a much higher boost-to-base ratio (3.375 times) versus the H20's modest 1.08 times ratio. This indicates the AMD part is designed for variable performance scaling, while the H20 runs closer to a fixed operating point.

The AMD Ryzen Z2 Go GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it suitable for gaming and interactive graphics. The NVIDIA H20 lists N/A for all three APIs, confirming its server-focused design without consumer graphics driver support. The H20 has no display outputs, while the AMD part has one USB Type-C output.

The power delivery systems are also different. The AMD Ryzen Z2 Go GPU has a 28 W TDP and no power connectors, indicating it draws power from the host system. The NVIDIA H20 has a 500 W TDP, uses an SXM Module slot width, and requires a 900 W suggested PSU. These specifications place the H20 in a rack-mounted server environment with dedicated power infrastructure.

The Verdict

The data indicates that the AMD Ryzen Z2 Go GPU and NVIDIA H20 serve mutually exclusive use cases with no meaningful performance overlap. The AMD part is a low-power integrated GPU for handheld gaming devices, as evidenced by its 28 W TDP, USB Type-C display output, and consumer API support. The NVIDIA H20 is a high-power server accelerator for AI and data center workloads, as evidenced by its 500 W TDP, SXM Module form factor, tensor cores, and absence of display outputs.

The performance gap is overwhelming in compute and memory metrics. The H20 leads by 9.53 times in FP32 throughput, 9.53 times in FP16 throughput, 39.4 times in memory bandwidth, and 4.77 times in texture rate. It also has 6 times more memory capacity and 312 tensor cores versus none for the AMD part. Any application that can leverage these resources will see massive performance advantages on the H20.

The AMD Ryzen Z2 Go GPU holds a narrower but still clear advantage in pixel fill rate at 1.82 times higher than the H20. It also has more ROPs (32 versus 24) and a higher boost clock relative to its base clock. These characteristics make it better suited for traditional rasterization in gaming contexts, though the absolute pixel rate of 86.40 GPixel/s is modest by modern standards.

The production status for both parts is listed as Active, with the AMD part released on 2024-12-31 and the NVIDIA H20 released on 2024-01-31. The H20's predecessor is listed as Server Ada and its successor as Server Blackwell, placing it within a clear server product lineage. The AMD part has no predecessor or successor listed.

For gaming and consumer handheld applications, the AMD Ryzen Z2 Go GPU is the only viable choice given its API support and display output. For server inference and training workloads requiring massive memory bandwidth and tensor compute, the NVIDIA H20 is the only viable choice given its HBM3 memory and tensor cores. Neither product can substitute for the other in its respective domain.

The 50th percentile rank for both parts indicates they sit at the median of all GPUs in the database, but this ranking is based on a database that includes both consumer and server parts. The actual performance envelope of the H20 is so far beyond the AMD part that direct comparison is not meaningful for decision-making purposes.

Specification Differences

| Specification | AMD Ryzen Z2 Go GPU | NVIDIA H20 |

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

| Architecture | RDNA 2.0 | Hopper |

| Process Node | 6 nm | 5 nm |

| Transistors | 13,100 million | 80,000 million |

| Die Size | 208 mm² | 814 mm² |

| Transistor Density | 63.0M / mm² | 98.3M / mm² |

| Base Clock | 800 MHz | 1830 MHz |

| Boost Clock | 2700 MHz | 1980 MHz |

| Memory Size | 16 GB | 96 GB |

| Memory Type | LPDDR5 | HBM3 |

| Memory Bus Width | 128 bit | 6144 bit |

| Memory Bandwidth | 102.4 GB/s | 4.03 TB/s |

| Memory Clock | 800 MHz 6.4 Gbps effective | 1313 MHz 5.3 Gbps effective |

| Shading Units | 768 | 9984 |

| TMUs | 48 | 312 |

| ROPs | 32 | 24 |

| RT Cores | 12 | N/A |

| Tensor Cores | N/A | 312 |

| Pixel Rate | 86.40 GPixel/s | 47.52 GPixel/s |

| Texture Rate | 129.6 GTexel/s | 617.8 GTexel/s |

| FP32 | 4.147 TFLOPS | 39.54 TFLOPS |

| FP16 | 8.294 TFLOPS (2:1) | 79.07 TFLOPS (2:1) |

| TDP | 28 W | 500 W |

| Slot Width | N/A | SXM Module |

| Suggested PSU | N/A | 900 W |

| Bus Interface | N/A | PCIe 5.0 x16 |

| Display Outputs | 1x USB Type-C | No outputs |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release Date | 2024-12-31 | 2024-01-31 |

| Predecessor | N/A | Server Ada |

| Successor | N/A | Server Blackwell |