NVIDIA H20 NVL16 vs NVIDIA RTX A1000 Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results for the NVIDIA H20 NVL16 versus the NVIDIA RTX A1000. The H20 NVL16 has no recorded benchmark scores, while the RTX A1000 has three recorded results. The absence of comparative data means the relative performance must be derived from the recorded specifications of each part, particularly compute throughput, memory capacity, and bandwidth.

The RTX A1000 delivers measurable results in the database. Its 3DMark Steel Nomad DX12 score is 969 points. In Geekbench OpenCL, it records 52,078 points, and in Geekbench Vulkan, it records 49,574 points. These scores place the RTX A1000 at the 79th percentile among all GPUs in the database, with an average benchmark score of 34,207. Its nearest rivals include the NVIDIA RTX A2000 12 GB, which scores 34,154 on average, a delta of 0.2 percent. The AMD Radeon RX 560 XT scores 34,133 on average, also a 0.2 percent delta. The NVIDIA TITAN V scores 34,355 on average, which is 0.4 percent higher than the RTX A1000. The AMD Radeon RX 480 scores 33,997 on average, a 0.6 percent lower result.

The H20 NVL16 has no benchmark entries, no average score, and sits at the 50th percentile in the database. Its raw compute specifications, however, indicate a fundamentally different class of hardware. The H20 NVL16 reaches 39.54 TFLOPS of FP32 throughput, while the RTX A1000 reaches 6.737 TFLOPS. That difference is approximately 5.9 times in FP32. In FP16, the H20 NVL16 records 79.07 TFLOPS with a 2:1 ratio, while the RTX A1000 records 6.737 TFLOPS with a 1:1 ratio, making the H20 NVL16 roughly 11.7 times faster in FP16. The H20 NVL16 also has 9,984 shading units versus 2,304, and 312 tensor cores versus 72.

Memory capacity and bandwidth further separate the two. The H20 NVL16 carries 96 GB of HBM3 on a 6144-bit bus, delivering 4.03 TB/s of bandwidth. The RTX A1000 carries 8 GB of GDDR6 on a 128-bit bus, delivering 192.0 GB/s. That bandwidth difference is roughly 21 times. The H20 NVL16 has 312 texture mapping units and 24 raster output units, while the RTX A1000 has 72 TMUs and 32 ROPs. Pixel rates are nearly identical: 47.52 GPixel/s for the H20 NVL16 versus 46.78 GPixel/s for the RTX A1000. Texture rates differ substantially: 617.8 GTexel/s for the H20 NVL16 versus 105.3 GTexel/s for the RTX A1000.

Clock speeds show the RTX A1000 has a lower base clock at 727 MHz but a boost clock of 1462 MHz, while the H20 NVL16 has a much higher base clock at 1830 MHz and a boost of 1980 MHz. The RTX A1000's memory runs at 1500 MHz (12 Gbps effective), while the H20 NVL16's memory runs at 1313 MHz (5.3 Gbps effective), but the HBM3 interface compensates with a vastly wider bus.

The data confirms the H20 NVL16 is a server accelerator with no display outputs, designed for compute workloads. The RTX A1000 is a workstation card with 4x mini-DisplayPort 1.4a outputs, supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 lists no API support in the database.

FAQ

Q: Which GPU has higher FP32 compute performance in the database?

A: The NVIDIA H20 NVL16 records 39.54 TFLOPS of FP32 throughput, which is approximately 5.9 times the 6.737 TFLOPS of the NVIDIA RTX A1000.

Q: What memory configuration does each GPU use?

A: The H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth. The RTX A1000 uses 8 GB of GDDR6 on a 128-bit bus with 192.0 GB/s bandwidth.

Q: Does the RTX A1000 have any benchmark scores in the database?

A: Yes, the RTX A1000 has three recorded scores: 969 in 3DMark Steel Nomad DX12, 52,078 in Geekbench OpenCL, and 49,574 in Geekbench Vulkan. Its average benchmark score is 34,207, placing it at the 79th percentile.

Q: Does the H20 NVL16 have any benchmark scores?

A: No, the H20 NVL16 has an empty benchmark list and an average benchmark score of 0. It sits at the 50th percentile in the database.

Q: Which GPU supports display outputs?

A: The RTX A1000 provides 4x mini-DisplayPort 1.4a outputs. The H20 NVL16 has no display outputs, indicating a server-accelerator role.

Q: What is the power requirement difference between the two?

A: The H20 NVL16 has a 400 W TDP and a suggested power supply of 800 W, while the RTX A1000 has a 50 W TDP and a suggested power supply of 250 W.

The Verdict

The data indicates two distinct products for different roles. The NVIDIA H20 NVL16 is a server-class accelerator with massive memory and compute resources. Its 96 GB HBM3 pool, 4.03 TB/s bandwidth, and 79.07 TFLOPS FP16 throughput position it for large-scale AI training or inference workloads. The absence of display outputs and the SXM module form factor confirm this orientation.

The NVIDIA RTX A1000 is a workstation GPU with display outputs and API support, suitable for desktop or workstation tasks. Its 8 GB memory capacity and 6.737 TFLOPS FP32 throughput align with entry-level professional workloads. The RTX A1000's benchmark scores and 79th percentile ranking show it performs competitively against its nearest rivals, including the RTX A2000 12 GB (0.2 percent delta) and the TITAN V (0.4 percent lower score).

The H20 NVL16 has no benchmark data to validate its real-world performance, but its raw specifications suggest it operates in a different performance tier. The FP32 difference alone is nearly 6 times, and the FP16 difference is nearly 12 times. The RTX A1000, by contrast, has a proven benchmark presence and a higher percentile rank in the database.

Users requiring display functionality, low power draw, and established benchmark results should select the RTX A1000. Users needing extreme memory capacity, high-bandwidth HBM3, and server-grade compute should select the H20 NVL16.

Specification Differences

The two GPUs differ across nearly every recorded specification. The H20 NVL16 uses a 5 nm TSMC process, while the RTX A1000 uses an 8 nm Samsung process. Transistor counts are 80,000 million for the H20 NVL16 versus 8,700 million for the RTX A1000. Die sizes are 814 mm² versus 200 mm². Transistor density is 98.3M per mm² for the H20 NVL16 and 43.5M per mm² for the RTX A1000.

Base clocks are 1830 MHz for the H20 NVL16 and 727 MHz for the RTX A1000. Boost clocks are 1980 MHz and 1462 MHz, respectively. Memory clocks are 1313 MHz (5.3 Gbps effective) versus 1500 MHz (12 Gbps effective). Memory size, type, bus width, and bandwidth all differ as described above.

Shading units number 9,984 versus 2,304. TMUs are 312 versus 72. ROPs are 24 versus 32. The RTX A1000 has 18 ray tracing cores, while the H20 NVL16 lists none. Tensor cores are 312 versus 72. Pixel rates are 47.52 GPixel/s versus 46.78 GPixel/s. Texture rates are 617.8 GTexel/s versus 105.3 GTexel/s.

TDP is 400 W versus 50 W. Slot width is SXM Module versus Single-slot. The H20 NVL16 lists no power connectors, while the RTX A1000 also lists none. Suggested PSU is 800 W versus 250 W. Bus interfaces are PCIe 5.0 x16 versus PCIe 4.0 x8. Display outputs are absent on the H20 NVL16 and 4x mini-DisplayPort 1.4a on the RTX A1000.

The RTX A1000 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the H20 NVL16 lists N/A for all APIs. Dimensions are recorded only for the RTX A1000 at 163 mm length and 69 mm height. The H20 NVL16 has no dimension data. Release dates differ, with the RTX A1000 released earlier. The H20 NVL16 lists its predecessor as Server Ada and successor as Server Blackwell, while the RTX A1000 lists Predecessor as Quadro Turing and successor as Workstation Ada.

Architecture Differences

The H20 NVL16 is built on the Hopper architecture with the GH100 chip, while the RTX A1000 uses the Ampere architecture with the GA107 chip. The H20 NVL16 belongs to the Server Hopper (Hxx) generation, while the RTX A1000 belongs to the Workstation Ampere (Ax000) generation.

The process nodes differ: 5 nm TSMC for the H20 NVL16 versus 8 nm Samsung for the RTX A1000. The H20 NVL16 has 80,000 million transistors on an 814 mm² die, achieving a density of 98.3M per mm². The RTX A1000 has 8,700 million transistors on a 200 mm² die, achieving a density of 43.5M per mm².

The H20 NVL16 uses HBM3 memory, which requires a 6144-bit bus to achieve its 4.03 TB/s bandwidth. The RTX A1000 uses GDDR6 on a 128-bit bus. The H20 NVL16's FP16 throughput is 79.07 TFLOPS with a 2:1 ratio, indicating dedicated FP16 acceleration. The RTX A1000's FP16 throughput equals its FP32 throughput at 6.737 TFLOPS with a 1:1 ratio, indicating no separate FP16 path.

The H20 NVL16 has 312 tensor cores, while the RTX A1000 has 72. The RTX A1000 includes 18 ray tracing cores, while the H20 NVL16 lists none. The H20 NVL16's texture rate of 617.8 GTexel/s is more than 5.8 times the RTX A1000's 105.3 GTexel/s. The H20 NVL16's pixel rate is slightly higher at 47.52 GPixel/s versus 46.78 GPixel/s, a marginal difference.

The H20 NVL16 uses a PCIe 5.0 x16 interface, while the RTX A1000 uses PCIe 4.0 x8. The H20 NVL16 is an SXM module, whereas the RTX A1000 is a single-slot card with a length of 163 mm and height of 69 mm.

Where Each One Wins

The H20 NVL16 wins decisively in compute-heavy scenarios. Its FP32 throughput of 39.54 TFLOPS and FP16 throughput of 79.07 TFLOPS make it suited for large-scale numerical workloads. The 96 GB HBM3 memory with 4.03 TB/s bandwidth provides capacity for massive datasets that would exhaust the RTX A1000's 8 GB GDDR6 at 192.0 GB/s. The H20 NVL16's 312 tensor cores accelerate matrix operations, and its 617.8 GTexel/s texture rate supports high-volume texture filtering.

The RTX A1000 wins in scenarios requiring display output and standard graphics APIs. Its 4x mini-DisplayPort 1.4a outputs enable direct display connection, while the H20 NVL16 has no outputs. The RTX A1000 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, whereas the H20 NVL16 lists no API support. The RTX A1000's 50 W TDP and 250 W suggested PSU make it deployable in low-power environments, while the H20 NVL16 requires 400 W and an 800 W PSU.

The RTX A1000 also wins on benchmark presence. Its recorded scores, including 969 in 3DMark Steel Nomad DX12, 52,078 in Geekbench OpenCL, and 49,574 in Geekbench Vulkan, provide measurable performance data. The H20 NVL16 has no benchmark scores in the database.

The RTX A1000's 32 ROPs exceed the H20 NVL16's 24 ROPs, giving it an edge in rasterization output. The RTX A1000 also includes 18 ray tracing cores, which the H20 NVL16 lacks, enabling ray-traced workloads. Its single-slot form factor and PCIe 4.0 x8 interface fit standard workstation chassis, whereas the H20 NVL16's SXM module requires a server platform.

For memory-bound tasks, the H20 NVL16 dominates. The 4.03 TB/s bandwidth enables data movement far beyond the RTX A1000's 192.0 GB/s. For latency-sensitive or display-oriented tasks, the RTX A1000 is the functional choice. The H20 NVL16's 1830 MHz base clock versus the RTX A1000's 727 MHz base clock indicates sustained high-frequency operation, while the RTX A1000's boost ratio from 727 MHz to 1462 MHz suggests more aggressive power scaling.