NVIDIA H20 NVL16 vs NVIDIA RTX 6000D Comparison

Head-to-Head Benchmarks

The NVIDIA H20 NVL16 and NVIDIA RTX 6000D target different segments of the GPU market, and the recorded data shows a substantial gulf in measured performance. The RTX 6000D carries two benchmark entries in the database: a 3DMark Steel Nomad DX12 score of 3522 and a Geekbench OpenCL score of 388405. The H20 NVL16 has no recorded benchmark scores, leaving its average benchmark score at 0 and its percentile versus all GPUs at 50. The RTX 6000D, by contrast, sits at the 98th percentile, with an average benchmark score of 195964.

The RTX 6000D's average score places it ahead of several established server and workstation parts. The nearest rivals list shows the RTX 6000D at 0.8% ahead of the NVIDIA Tesla V100S PCIe 32 GB, which holds an average score of 194415. It is 4.7% ahead of the NVIDIA A100 SXM4 40 GB, which scores 187147. The RTX 6000D also leads the NVIDIA RTX 5000 Ada Generation by 6.1%, with that card scoring 184664. However, the NVIDIA A100 PCIe 80 GB posts a higher average score of 207124, putting the RTX 6000D 5.4% behind that particular rival.

The absence of benchmark data for the H20 NVL16 means the head-to-head comparison relies entirely on the RTX 6000D's recorded results. The H20 NVL16 is an active product with a release date of 2025-09-01, while the RTX 6000D launched earlier on 2025-07-13. The RTX 6000D's raw compute figures far exceed those of the H20 NVL16 in several key metrics. The RTX 6000D delivers 97.04 TFLOPS of FP32 performance, while the H20 NVL16 manages 39.54 TFLOPS. In FP16, the RTX 6000D again leads with 97.04 TFLOPS at a 1:1 ratio, whereas the H20 NVL16 reaches 79.07 TFLOPS at a 2:1 ratio.

Texture and pixel throughput follow the same pattern. The RTX 6000D achieves a texture rate of 1,516.3 GTexel/s and a pixel rate of 466.6 GPixel/s. The H20 NVL16 delivers 617.8 GTexel/s and 47.52 GPixel/s respectively. The RTX 6000D's pixel rate is nearly ten times higher, a direct consequence of its 192 ROPs versus the H20 NVL16's 24 ROPs. The RTX 6000D also doubles the shading units, with 19968 versus 9984, and doubles the texture mapping units, 624 versus 312.

Architecture Differences

The two GPUs come from different architectural generations. The H20 NVL16 uses the GH100 chip built on the Hopper architecture, part of the Server Hopper (Hxx) generation. The RTX 6000D uses the GB202 chip on the Blackwell 2.0 architecture, belonging to the Blackwell PRO W (x000) generation. Both are fabricated by TSMC on a 5 nm process node, but the transistor counts differ considerably. The H20 NVL16 packs 80,000 million transistors on a die size of 814 mm², resulting in a transistor density of 98.3M per mm². The RTX 6000D contains 92,200 million transistors on a smaller 750 mm² die, achieving a higher density of 122.9M per mm².

Memory architecture marks another fundamental split. The H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus, producing a bandwidth of 4.03 TB/s. The RTX 6000D uses 84 GB of GDDR7 on a 448-bit bus, with bandwidth of 1.40 TB/s. The H20 NVL16's HBM3 solution offers nearly three times the memory bandwidth, which suits data-center workloads that demand large working sets and high throughput. The RTX 6000D's GDDR7 memory runs at a much higher effective speed of 25 Gbps, compared to 5.3 Gbps effective for the H20 NVL16.

Clock speeds also differ. The H20 NVL16 has a base clock of 1830 MHz and a boost clock of 1980 MHz. The RTX 6000D runs higher, with a base of 1992 MHz and a boost of 2430 MHz. The RTX 6000D includes 156 ray tracing cores and 624 tensor cores, while the H20 NVL16 lists 312 tensor cores and no ray tracing core count in the data. The H20 NVL16's shading unit count of 9984 is exactly half of the RTX 6000D's 19968.

Feature support diverges sharply. The H20 NVL16 has no display outputs, no DirectX support, no OpenGL, and no Vulkan support, reflecting its server-oriented design as an SXM Module. The RTX 6000D is a dual-slot card with 4x DisplayPort 2.1b outputs, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 support. The API support alone indicates the intended usage: one part for compute-only installations, the other for interactive workstations.

Where Each One Wins

The H20 NVL16 wins in memory capacity and bandwidth. Its 96 GB of HBM3 memory with 4.03 TB/s bandwidth exceeds the RTX 6000D's 84 GB and 1.40 TB/s by a wide margin. For workloads that fit within the RTX 6000D's memory footprint, the RTX 6000D's higher bandwidth per gigabyte and faster clocks may matter less, but for large-scale model inference or training data that exceeds 84 GB, the H20 NVL16's additional capacity is decisive. The H20 NVL16 also has a lower thermal design power at 400 W versus the RTX 6000D's 600 W, and its suggested PSU is 800 W versus 1000 W. The H20 NVL16's SXM Module form factor suits dense server deployments where multiple accelerators share a chassis.

The RTX 6000D wins on raw compute throughput, pixel processing, and graphics features. Its FP32 performance of 97.04 TFLOPS is 145% higher than the H20 NVL16's 39.54 TFLOPS. The FP16 performance is also higher, though by a smaller margin: 97.04 TFLOPS versus 79.07 TFLOPS. The RTX 6000D's 466.6 GPixel/s pixel rate versus 47.52 GPixel/s indicates far stronger rasterization capabilities. The RTX 6000D's 192 ROPs versus 24 ROPs reinforces this. The RTX 6000D also supports modern graphics APIs, making it suitable for visualization, rendering, and any workload that requires a display output.

The RTX 6000D's benchmark percentile of 98 versus the H20 NVL16's 50 confirms the measured performance gap. The RTX 6000D's nearest rivals, all data-center or workstation GPUs, show it competing in that weight class. The H20 NVL16's lack of benchmark scores in the database prevents a direct comparison, but its architectural positioning as a Hopper server part with lower compute throughput and higher memory capacity suggests a different role. The H20 NVL16's predecessor is listed as Server Ada and its successor as Server Blackwell, indicating it fills a specific niche in the server lineup rather than competing on peak compute.

Specification Differences

The two cards differ across nearly every major specification. The H20 NVL16 uses the GH100 chip, while the RTX 6000D uses GB202. The H20 NVL16 is Hopper architecture; the RTX 6000D is Blackwell 2.0. Transistor counts differ: 80,000 million versus 92,200 million. Die size differs: 814 mm² versus 750 mm². Transistor density differs: 98.3M per mm² versus 122.9M per mm².

Clock speeds show the RTX 6000D running faster. Base clocks are 1830 MHz for the H20 NVL16 and 1992 MHz for the RTX 6000D. Boost clocks are 1980 MHz versus 2430 MHz. Memory clocks differ substantially: the H20 NVL16 runs at 1313 MHz with 5.3 Gbps effective, while the RTX 6000D runs at 1560 MHz with 25 Gbps effective.

Memory configuration differs in size, type, bus width, and bandwidth. The H20 NVL16 has 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth. The RTX 6000D has 84 GB of GDDR7 on a 448-bit bus with 1.40 TB/s bandwidth.

Compute resources differ. The H20 NVL16 has 9984 shading units, 312 TMUs, 24 ROPs, and 312 tensor cores. The RTX 6000D has 19968 shading units, 624 TMUs, 192 ROPs, 156 ray tracing cores, and 624 tensor cores. The RTX 6000D has no listed RT core count for the H20 NVL16, which lists none.

Throughput figures differ in every category. Pixel rate: 47.52 GPixel/s versus 466.6 GPixel/s. Texture rate: 617.8 GTexel/s versus 1,516.3 GTexel/s. FP32: 39.54 TFLOPS versus 97.04 TFLOPS. FP16: 79.07 TFLOPS at 2:1 versus 97.04 TFLOPS at 1:1.

Power and physical specifications differ. The H20 NVL16 has a TDP of 400 W and uses an SXM Module slot width. The RTX 6000D has a TDP of 600 W, is dual-slot, and uses a 1x 16-pin power connector. Suggested PSU differs: 800 W for the H20 NVL16, 1000 W for the RTX 6000D. The RTX 6000D has dimensions of 304 mm length, 137 mm height, and 40 mm width. The H20 NVL16 has no listed dimensions.

Display and API support differ completely. The H20 NVL16 has no outputs and no API support. The RTX 6000D has 4x DisplayPort 2.1b, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both use PCIe 5.0 x16 interfaces. Release dates differ: the H20 NVL16 launched 2025-09-01, the RTX 6000D on 2025-07-13. The RTX 6000D has a launch MSRP of 8,565 USD; the H20 NVL16 has no listed launch MSRP.

FAQ

Q: Which GPU has more memory?

A: The NVIDIA H20 NVL16 has 96 GB of HBM3 memory, while the NVIDIA RTX 6000D has 84 GB of GDDR7 memory.

Q: How do the FP32 performance figures compare?

A: The RTX 6000D delivers 97.04 TFLOPS of FP32 performance, more than double the H20 NVL16's 39.54 TFLOPS.

Q: Which card supports display outputs?

A: The RTX 6000D supports 4x DisplayPort 2.1b outputs. The H20 NVL16 has no display outputs.

Q: What is the memory bandwidth difference?

A: The H20 NVL16 provides 4.03 TB/s of bandwidth via its 6144-bit HBM3 bus, while the RTX 6000D provides 1.40 TB/s via its 448-bit GDDR7 bus.

Q: How do the transistor counts compare?

A: The RTX 6000D contains 92,200 million transistors, while the H20 NVL16 contains 80,000 million transistors.

Q: What is the average benchmark score for the RTX 6000D?

A: The RTX 6000D has an average benchmark score of 195964, placing it at the 98th percentile versus all GPUs. The H20 NVL16 has an average benchmark score of 0.