AMD Ryzen Z1 GPU vs NVIDIA H20 NVL16 Comparison

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark runs for the AMD Ryzen Z1 GPU and the NVIDIA H20 NVL16. Both products have an average benchmark score of zero and hold identical percentile placements at 50th among all GPUs in the database. The absence of direct comparison data does not mean the two are equivalent; rather, the performance gap between them is so pronounced that standardized benchmark suites have not produced comparable results. The raw specifications suggest a lopsided contest. The NVIDIA H20 NVL16 delivers 39.54 TFLOPS of FP32 compute, which is 15.4 times the 2.560 TFLOPS offered by the AMD Ryzen Z1 GPU. In FP16 workloads, the H20 NVL16 reaches 79.07 TFLOPS, while the Ryzen Z1 GPU manages 5.120 TFLOPS, a ratio of 15.4 to 1 again. Texture throughput follows the same pattern: the NVIDIA part sustains 617.8 GTexel/s versus 40.00 GTexel/s for the AMD chip, a 15.4-fold difference. Pixel rates are less extreme but still decisive, with the H20 NVL16 posting 47.52 GPixel/s against 20.00 GPixel/s for the Ryzen Z1 GPU, a 2.4 times advantage.

Memory bandwidth is where the separation becomes astonishing. The H20 NVL16 accesses 96 GB of HBM3 across a 6144 bit bus, producing 4.03 TB/s of bandwidth. The Ryzen Z1 GPU relies on 16 GB of LPDDR5 on a 64 bit bus, yielding 51.20 GB/s. That places the NVIDIA part at roughly 78.7 times the memory bandwidth of the AMD part. Such a chasm in memory throughput fundamentally changes what each processor can attempt. The Ryzen Z1 GPU is constrained to workloads that fit within its modest bandwidth envelope, while the H20 NVL16 can feed its massive shading unit array without starvation.

The shading unit counts reinforce the compute gap. The H20 NVL16 carries 9984 shading units, 312 texture mapping units, and 24 render output units. The Ryzen Z1 GPU has 256 shading units, 16 TMUs, and 8 ROPs. Per-unit efficiency differences aside, the raw resource disparity is roughly 39 to 1 in shading units and 19.5 to 1 in TMUs. The ROP gap is smaller at 3 to 1, which explains why pixel rate is not as lopsided as texture rate. The H20 NVL16 also includes 312 tensor cores, while the Ryzen Z1 GPU has no tensor core count listed, indicating the AMD part lacks dedicated tensor hardware altogether. The RT core comparison is inverted: the Ryzen Z1 GPU lists 4 RT cores, while the H20 NVL16 does not report any, suggesting ray tracing acceleration is not a focus for the server-oriented NVIDIA product.

Clock behavior tells a different story. The Ryzen Z1 GPU runs at a 1500 MHz base clock and boosts to 2500 MHz, while the H20 NVL16 operates at 1830 MHz base and 1980 MHz boost. The AMD chip has a 21.2% higher boost clock, but with 39 times fewer shading units, the clock advantage cannot compensate for the resource deficit. The Ryzen Z1 GPU also runs at a much lower thermal envelope, 30 W versus 400 W for the H20 NVL16, a 13.3-fold difference in power draw. The NVIDIA part requires an 800 W suggested PSU, whereas the AMD part uses no power connectors at all.

Neither product has any recorded wins in the database. The winsA and winsB fields are both zero. The absence of head-to-head entries means the comparison must rely on the architectural and specification data recorded for each item. The conclusion is inescapable: the H20 NVL16 is an order of magnitude more powerful in nearly every measurable category, with the sole exceptions being boost clock and ray tracing core count.

Where Each One Wins

The H20 NVL16 wins every computational category where a direct numeric comparison exists. FP32 throughput, FP16 throughput, texture rate, pixel rate, shading units, TMUs, ROPs, memory capacity, memory bus width, memory bandwidth, and transistor count all favor the NVIDIA product. The H20 NVL16 uses 80,000 million transistors on an 814 mm² die, versus 25,390 million transistors on a 178 mm² die for the Ryzen Z1 GPU. That is 3.2 times the transistor count and 4.6 times the die area. The H20 NVL16 also has a higher base clock (1830 MHz versus 1500 MHz), meaning it wins on base frequency as well. The only clock metric where the Ryzen Z1 GPU leads is boost clock, at 2500 MHz versus 1980 MHz, a 26.3% advantage. That single win does not translate into any meaningful performance benefit given the resource disparity.

The Ryzen Z1 GPU wins on process node density. It is built on a 4 nm process from TSMC, while the H20 NVL16 uses a 5 nm process from the same foundry. The Ryzen Z1 GPU achieves a transistor density of 142.6 million transistors per square millimeter, compared to 98.3 million for the H20 NVL16. This means the AMD chip packs 45.1% more transistors per area, a genuine manufacturing advantage. The Ryzen Z1 GPU also lists ray tracing cores, with 4 RT units, while the H20 NVL16 has no RT core count in its record. In terms of software APIs, the Ryzen Z1 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the H20 NVL16 lists N/A for all three. This makes the AMD part the only one of the two with consumer graphics API compatibility.

Power efficiency is another category where the Ryzen Z1 GPU leads by a wide margin. The AMD chip draws 30 W, the NVIDIA part draws 400 W. Per watt of FP32 performance, the Ryzen Z1 GPU delivers 0.0853 TFLOPS per watt, while the H20 NVL16 delivers 0.0989 TFLOPS per watt. The NVIDIA part is actually more efficient per watt despite the massive power draw, but the Ryzen Z1 GPU can operate without any power connector and fits within a 21 mm width, 111 mm height, and 280 mm length envelope. The H20 NVL16 is an SXM module with no recorded dimensions and requires an 800 W suggested PSU. The Ryzen Z1 GPU is the only one that could plausibly function in a low-power embedded or handheld context, though the database does not record such deployments.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA H20 NVL16 delivers 39.54 TFLOPS of FP32 compute, which is 15.4 times the 2.560 TFLOPS produced by the AMD Ryzen Z1 GPU.

Q: How do the memory systems compare?

A: The H20 NVL16 uses 96 GB of HBM3 on a 6144 bit bus with 4.03 TB/s bandwidth. The Ryzen Z1 GPU uses 16 GB of LPDDR5 on a 64 bit bus with 51.20 GB/s bandwidth. The NVIDIA part has roughly 78.7 times the memory bandwidth.

Q: Does the Ryzen Z1 GPU support ray tracing?

A: Yes, the Ryzen Z1 GPU lists 4 RT cores. The H20 NVL16 has no RT core count recorded, and its API support is listed as N/A for DirectX, OpenGL, and Vulkan.

Q: What is the power draw difference?

A: The Ryzen Z1 GPU has a 30 W TDP and uses no power connectors. The H20 NVL16 has a 400 W TDP and requires an 800 W suggested PSU.

Q: Which GPU has a smaller manufacturing process?

A: The Ryzen Z1 GPU is built on a 4 nm TSMC process with a transistor density of 142.6 million per square millimeter. The H20 NVL16 uses a 5 nm TSMC process with 98.3 million transistors per square millimeter.

Q: Do both GPUs have tensor cores?

A: The H20 NVL16 has 312 tensor cores. The Ryzen Z1 GPU does not list a tensor core count, indicating no dedicated tensor hardware is present.

Specification Differences

The two GPUs differ in nearly every recorded specification. The Ryzen Z1 GPU uses a Phoenix chip with RDNA 3.0 architecture, categorized as a console GPU. The H20 NVL16 uses a GH100 chip with Hopper architecture, categorized as a server GPU. The process node differs: 4 nm for AMD, 5 nm for NVIDIA. Transistor counts are 25,390 million versus 80,000 million, a 3.2 times difference. Die size is 178 mm² versus 814 mm², a 4.6 times difference. Transistor density favors AMD at 142.6M per mm² versus 98.3M per mm².

Clock speeds differ in both directions. The Ryzen Z1 GPU has a 1500 MHz base clock and 2500 MHz boost. The H20 NVL16 has a 1830 MHz base clock and 1980 MHz boost. Memory clocks are recorded as 800 MHz with 6.4 Gbps effective for the AMD part, and 1313 MHz with 5.3 Gbps effective for the NVIDIA part. Memory capacity is 16 GB versus 96 GB. Memory type is LPDDR5 versus HBM3. Bus width is 64 bit versus 6144 bit. Bandwidth is 51.20 GB/s versus 4.03 TB/s.

Compute resources diverge sharply. Shading units are 256 versus 9984. TMUs are 16 versus 312. ROPs are 8 versus 24. RT cores are 4 versus none listed. Tensor cores are none listed versus 312. Pixel rate is 20.00 GPixel/s versus 47.52 GPixel/s. Texture rate is 40.00 GTexel/s versus 617.8 GTexel/s. FP32 is 2.560 TFLOPS versus 39.54 TFLOPS. FP16 is 5.120 TFLOPS versus 79.07 TFLOPS.

Power and physical characteristics differ completely. TDP is 30 W versus 400 W. The Ryzen Z1 GPU has no power connectors; the H20 NVL16 has no power connector details but lists an 800 W suggested PSU. Slot width is not recorded for AMD and is SXM Module for NVIDIA. The bus interface is not recorded for AMD and is PCIe 5.0 x16 for NVIDIA. Both have no display outputs. Dimensions are recorded only for the AMD part: 280 mm length, 111 mm height, 21 mm width. The H20 NVL16 has no dimensions listed.

Release dates differ by two years. The Ryzen Z1 GPU released on 2023-09-17 with a launch MSRP of 599 USD. The H20 NVL16 released on 2025-09-01 with no launch MSRP recorded. The NVIDIA part lists a predecessor of Server Ada and a successor of Server Blackwell. The AMD part lists no predecessor or successor. Both are marked as Active in production status. Both have an average benchmark score of zero and a 50th percentile placement. The Ryzen Z1 GPU has no nearest rivals listed, and neither does the H20 NVL16.

Architecture Differences

The architectural divide is fundamental. The Ryzen Z1 GPU uses RDNA 3.0, AMD's graphics-focused architecture built for console and portable scenarios. It is fabricated on a 4 nm TSMC process, achieving 142.6 million transistors per square millimeter. The H20 NVL16 uses Hopper, NVIDIA's data center architecture designed around massive parallel compute and tensor operations. It is fabricated on a 5 nm TSMC process with a lower density of 98.3 million transistors per square millimeter. The transistor budget tells the story: NVIDIA packed 80,000 million transistors into its 814 mm² die, while AMD used 25,390 million across 178 mm².

The memory architectures reflect their intended roles. The Ryzen Z1 GPU uses LPDDR5, a low-power memory standard suited to compact systems, with 16 GB capacity and a 64 bit bus. The H20 NVL16 uses HBM3, a high-bandwidth stacked memory design, with 96 GB capacity and a 6144 bit bus. The bandwidth difference of 4.03 TB/s versus 51.20 GB/s is not incremental; it represents two entirely different classes of memory subsystem.

Compute features diverge on tensor and ray tracing support. The H20 NVL16 includes 312 tensor cores, enabling matrix operations that the Ryzen Z1 GPU cannot accelerate in dedicated hardware, since no tensor core count is recorded for the AMD part. The Ryzen Z1 GPU includes 4 RT cores for ray tracing, while the H20 NVL16 has no RT core count listed. API support is equally split: the AMD part exposes DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part records N/A for all three, indicating it is not intended for consumer graphics APIs. The H20 NVL16 uses a PCIe 5.0 x16 bus interface and an SXM Module slot, while the Ryzen Z1 GPU has no bus interface or slot width recorded.

The clock and power behavior reveals different design philosophies. The Ryzen Z1 GPU boosts to 2500 MHz at 30 W, a high-frequency, low-power design. The H20 NVL16 runs at a lower 1980 MHz boost but consumes 400 W, prioritizing sustained throughput over frequency. The 800 W suggested PSU for the NVIDIA part underscores the system-level power requirements, while the AMD part needs no power connector at all. Both GPUs have no display outputs, confirming neither is designed for direct video output.

The Verdict

The data supports only one conclusion for compute performance: the NVIDIA H20 NVL16 is in a different class entirely. Its 39.54 TFLOPS FP32, 79.07 TFLOPS FP16, 4.03 TB/s memory bandwidth, and 312 tensor cores place it firmly in the server accelerator category. The Ryzen Z1 GPU, with 2.560 TFLOPS FP32, 5.120 TFLOPS FP16, 51.20 GB/s memory bandwidth, and no tensor cores, cannot compete on any raw performance metric. The 15.4 times FP32 advantage and 78.7 times memory bandwidth advantage are not close margins. Any workload that scales with compute throughput or memory bandwidth will overwhelmingly favor the H20 NVL16.

The Ryzen Z1 GPU has its own distinct advantages. It uses a denser 4 nm process, draws only 30 W, requires no power connector, and fits in a compact 280 mm by 111 mm by 21 mm physical envelope. It supports consumer graphics APIs including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and it includes 4 RT cores. The H20 NVL16 lists N/A for all consumer APIs and has no RT cores. For any application requiring ray tracing, consumer API compatibility, or minimal power draw, the Ryzen Z1 GPU is the only viable option between the two. It also has a recorded launch MSRP of 599 USD, while the H20 NVL16 has no launch MSRP in the database.

The production status of both is Active, meaning neither is discontinued. The release dates show the Ryzen Z1 GPU arrived in September 2023, while the H20 NVL16 arrived in September 2025. The H20 NVL16 has recorded generational context with a Server Ada predecessor and Server Blackwell successor, while the Ryzen Z1 GPU has neither. The choice between them depends entirely on the workload. Server-scale training and inference tasks, particularly those leveraging tensor cores and HBM3 bandwidth, point to the H20 NVL16. Embedded, low-power, or graphics-oriented tasks point to the Ryzen Z1 GPU. The benchmark database records no direct comparisons, but the specification data provides a clear and consistent picture of two products built for opposite ends of the computing spectrum.