AMD Ryzen Z2 A GPU vs NVIDIA H20 NVL16 Comparison

FAQ

Q: What are the two products compared here?

A: The AMD Ryzen Z2 A GPU is a console-class integrated GPU based on the Van Gogh chip with RDNA 2.0 architecture, while the NVIDIA H20 NVL16 is a server accelerator based on the GH100 chip with Hopper architecture.

Q: How do the memory configurations differ?

A: The AMD Ryzen Z2 A GPU uses 16 GB of LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth. The NVIDIA H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth.

Q: Which product has the higher boost clock?

A: The NVIDIA H20 NVL16 boosts to 1980 MHz, while the AMD Ryzen Z2 A GPU boosts to 1600 MHz.

Q: What are the power requirements for each?

A: The AMD Ryzen Z2 A GPU has a 15 W TDP. The NVIDIA H20 NVL16 has a 400 W TDP and the database lists a suggested PSU of 800 W.

Q: Are there differences in API support?

A: The AMD Ryzen Z2 A GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA H20 NVL16 lists N/A for DirectX, OpenGL, and Vulkan.

Q: What is the production status of each product?

A: Both are listed as Active. The AMD Ryzen Z2 A GPU has a release date of 2024-12-31, while the NVIDIA H20 NVL16 has a release date of 2025-09-01.

Architecture Differences

The AMD Ryzen Z2 A GPU and the NVIDIA H20 NVL16 represent two entirely different design philosophies. The AMD part is built on the Van Gogh chip using RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The NVIDIA part uses the GH100 chip with Hopper architecture, fabricated on a 5 nm process, also at TSMC.

Transistor counts reveal the scale gap. The AMD chip contains 2,400 million transistors on a 163 mm² die, giving a transistor density of 14.7M per mm². The NVIDIA chip contains 80,000 million transistors on an 814 mm² die, with a density of 98.3M per mm². The NVIDIA chip packs over 33 times more transistors onto roughly five times the silicon area.

The compute resources differ dramatically. The AMD Ryzen Z2 A GPU has 512 shading units, 32 texture mapping units, 16 ROPs, and 8 ray tracing cores. The NVIDIA H20 NVL16 has 9,984 shading units, 312 TMUs, 24 ROPs, and 312 tensor cores. The NVIDIA part does not list dedicated ray tracing cores, whereas the AMD part includes them.

Memory architecture is another fundamental split. The AMD product uses 16 GB of LPDDR5 on a 128-bit bus. The NVIDIA product uses 96 GB of HBM3 on a 6144-bit bus. The bandwidth gap is enormous: 102.4 GB/s versus 4.03 TB/s.

The AMD Ryzen Z2 A GPU is designed as an integrated solution with a single USB Type-C display output. The NVIDIA H20 NVL16 is a server module with an SXM form factor, no display outputs, and a PCIe 5.0 x16 bus interface. The AMD part supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part reports no consumer API support, reflecting its server-oriented role.

Head-to-Head Benchmarks

The database records no head-to-head benchmark entries for these two products. Both items also have zero average benchmark scores and zero wins in the winsA and winsB fields. Direct numerical comparison of measured performance is therefore not possible from the recorded data.

However, the specification tables provide a basis for comparison. The NVIDIA H20 NVL16 delivers 39.54 TFLOPS of FP32 compute, which is roughly 24 times the 1.638 TFLOPS of the AMD Ryzen Z2 A GPU. In FP16, the NVIDIA part reaches 79.07 TFLOPS, while the AMD part reaches 3.277 TFLOPS. The NVIDIA product also holds the advantage in pixel rate: 47.52 GPixel/s versus 25.60 GPixel/s. The texture rate gap is steeper, with the NVIDIA part at 617.8 GTexel/s versus 51.20 GTexel/s for the AMD part.

The AMD Ryzen Z2 A GPU does hold advantages in certain areas. It has a higher memory clock, with its LPDDR5 running at 800 MHz (6.4 Gbps effective) against the NVIDIA HBM3 at 1313 MHz (5.3 Gbps effective). The AMD part also has a lower TDP at 15 W versus 400 W, and it offers display output capability, which the NVIDIA module lacks entirely.

Specification Differences

Clock speeds differ significantly. The AMD Ryzen Z2 A GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The NVIDIA H20 NVL16 has a base clock of 1830 MHz and a boost clock of 1980 MHz. The NVIDIA part runs faster at both ends of the spectrum.

Memory specifications show the largest divergence. The AMD part uses 16 GB of LPDDR5 with a 128-bit bus and 102.4 GB/s bandwidth. The NVIDIA part uses 96 GB of HBM3 with a 6144-bit bus and 4.03 TB/s bandwidth. The NVIDIA module offers six times the memory capacity and roughly 39 times the bandwidth.

Compute unit counts differ across every category. The AMD part has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores. The NVIDIA part has 9,984 shading units, 312 TMUs, 24 ROPs, and 312 tensor cores. The NVIDIA part does not list RT cores, while the AMD part does not list tensor cores.

Power and form factor are also distinct. The AMD Ryzen Z2 A GPU has a 15 W TDP and no listed slot width, power connectors, or suggested PSU. The NVIDIA H20 NVL16 has a 400 W TDP, an SXM Module slot width, and a suggested PSU of 800 W. The AMD part uses a USB Type-C display output; the NVIDIA part has no outputs. The bus interface is null for the AMD part and PCIe 5.0 x16 for the NVIDIA part.

The process nodes differ: 7 nm for AMD versus 5 nm for NVIDIA. Die size, transistor count, and transistor density all favor the NVIDIA part. The AMD part supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4; the NVIDIA part lists N/A for all three APIs. Release dates also differ, with the AMD product released on 2024-12-31 and the NVIDIA product on 2025-09-01.

The Verdict

The recorded data shows two products with no overlapping use cases. The AMD Ryzen Z2 A GPU is a low-power, console-class GPU with display output, consumer API support, and a 15 W TDP. The NVIDIA H20 NVL16 is a high-power server accelerator with massive memory capacity, tensor cores, and a 400 W TDP.

For raw compute throughput, the NVIDIA H20 NVL16 is the clear choice based on the specification data. Its FP32 figure of 39.54 TFLOPS dwarfs the 1.638 TFLOPS of the AMD part. Its FP16 figure of 79.07 TFLOPS similarly dwarfs the 3.277 TFLOPS of the AMD part. The NVIDIA module also offers far more memory, much higher bandwidth, and a larger transistor budget.

For low-power or client-side workloads, the AMD Ryzen Z2 A GPU is the only viable option in this comparison. It is the only one with display outputs, the only one with consumer API support, and the only one with a power envelope suitable for a compact system. Its 15 W TDP versus 400 W TDP is a difference of more than 26 times in power draw.

The database shows no benchmark scores for either product, so performance conclusions must rely on specifications. The percentile field for both products is 50, indicating median standing relative to all GPUs in the database. Neither product has nearest rivals listed, so no relative performance deltas can be reported.

Where Each One Wins

The NVIDIA H20 NVL16 wins in every raw performance category recorded in the database. It has more shading units, more TMUs, more ROPs, and higher clock speeds. Its FP32 compute is 39.54 TFLOPS against 1.638 TFLOPS. Its FP16 compute is 79.07 TFLOPS against 3.277 TFLOPS. Its pixel rate is 47.52 GPixel/s against 25.60 GPixel/s. Its texture rate is 617.8 GTexel/s against 51.20 GTexel/s. Its memory bandwidth is 4.03 TB/s against 102.4 GB/s.

The NVIDIA part also wins on memory capacity with 96 GB against 16 GB, on memory bus width with 6144 bits against 128 bits, and on transistor count with 80,000 million against 2,400 million. Its tensor cores, 312 of them, give it a capability the AMD part lacks entirely.

The AMD Ryzen Z2 A GPU wins in efficiency and integration. Its 15 W TDP is far below the 400 W TDP of the NVIDIA part. It offers a USB Type-C display output, while the NVIDIA module has no outputs. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part lists N/A for all three. Its memory clock of 800 MHz (6.4 Gbps effective) exceeds the 1313 MHz (5.3 Gbps effective) of the NVIDIA part in effective data rate terms.

The AMD part also holds the advantage in ray tracing cores, with 8 listed against none for the NVIDIA part. Its smaller die size of 163 mm² and lower transistor count make it a more compact solution. The AMD product was released earlier, on 2024-12-31, compared to the NVIDIA product on 2025-09-01.

The use-case split is therefore clean. The AMD Ryzen Z2 A GPU suits systems that need graphics output, consumer API compatibility, and minimal power draw. The NVIDIA H20 NVL16 suits server workloads that demand maximum compute throughput, large memory pools, and tensor core acceleration. The two products do not compete in the same market segment, and the specification data confirms they should not be treated as alternatives for the same task.