NVIDIA GeForce RTX 4090 D vs NVIDIA H20 Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the NVIDIA GeForce RTX 4090 D and the NVIDIA H20. The database contains zero shared test scores, and the H20 has no individual benchmark entries at all. This absence of overlapping measurements makes a score-for-score comparison impossible. Instead, the analysis must rely on the RTX 4090 D's available benchmark suite and the H20's architecture-level specifications.

The RTX 4090 D delivers an average benchmark score of 178,050 across its three recorded tests. Its percentile rank sits at 98 among all GPUs, indicating it outperforms the vast majority of tracked graphics cards. In the 3DMark Steel Nomad DX12 test, it records a score of 8,587. Geekbench OpenCL results show 278,621, while Geekbench Vulkan shows 246,941. The H20, by contrast, has an average benchmark score of 0 and a percentile rank of 50, which reflects the complete lack of recorded performance data rather than an actual performance level.

The nearest rivals for the RTX 4090 D provide context for its standing. The NVIDIA RTX PRO 5000 Blackwell posts an average score of 182,109, which is 2.2% higher than the 4090 D. The NVIDIA A100 SXM4 80 GB scores 183,725, a 3.1% advantage. The NVIDIA RTX 5000 Ada Generation reaches 184,664, a 3.6% lead. The NVIDIA A100 SXM4 40 GB tops the group at 187,147, sitting 4.9% ahead. These deltas show the 4090 D trails these four accelerators by a narrow margin, between 2.2% and 4.9%. The H20 has no nearest rivals listed, so no comparative deltas exist for it.

Where Each One Wins

The RTX 4090 D wins decisively in raw graphics compute. Its FP32 throughput of 73.54 TFLOPS doubles the H20's 39.54 TFLOPS. Pixel fill rate favors the 4090 D at 443.5 GPixel/s versus 47.52 GPixel/s for the H20, a factor of over nine. Texture rate also favors the 4090 D: 1,149.1 GTexel/s compared to 617.8 GTexel/s. The 4090 D carries 14,592 shading units, 456 texture mapping units, and 176 raster operation units. The H20 has 9,984 shading units, 312 TMUs, and only 24 ROPs. These figures place the 4090 D firmly ahead for rasterization and traditional rendering workloads.

The H20 wins in memory capacity and bandwidth. It offers 96 GB of HBM3 memory on a 6,144-bit bus, producing 4.03 TB/s of bandwidth. The 4090 D has 24 GB of GDDR6X on a 384-bit bus, yielding 1.01 TB/s. The H20's bandwidth advantage is nearly fourfold, which matters for memory-bound compute tasks. The H20 also leads in FP16 throughput: 79.07 TFLOPS with a 2:1 ratio, while the 4090 D delivers 73.54 TFLOPS with a 1:1 ratio. The H20's tensor core count of 312 matches its TMU count, though the 4090 D has 456 tensor cores.

The H20 targets server deployment with its SXM Module form factor and PCIe 5.0 x16 interface. It has no display outputs, confirming its role as a compute accelerator rather than a graphics card. The 4090 D uses a triple-slot design, a single 16-pin power connector, and PCIe 4.0 x16. It provides 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs. The 4090 D also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The H20 lists N/A for all three APIs, reinforcing its non-graphics orientation.

Architecture Differences

The two GPUs come from different architectural families. The RTX 4090 D uses the AD102 chip based on Ada Lovelace architecture. The H20 uses the GH100 chip based on Hopper architecture. Both are built by TSMC on a 5 nm process, but the die sizes differ substantially. The AD102 measures 609 mm² with 76,300 million transistors, giving a density of 125.3 million transistors per mm². The GH100 measures 814 mm² with 80,000 million transistors, resulting in a lower density of 98.3 million per mm². The H20's larger die accommodates more memory and a wider bus, while the 4090 D's denser layout favors compute units.

Clock speeds separate the two as well. The 4090 D runs at a base clock of 2,280 MHz and a boost of 2,520 MHz. The H20 runs at 1,830 MHz base and 1,980 MHz boost. The 4090 D's higher clocks contribute to its FP32 advantage. Memory clocks also differ: the 4090 D uses 1,313 MHz with 21 Gbps effective GDDR6X, while the H20 uses 1,313 MHz with 5.3 Gbps effective HBM3. The H20 compensates with a far wider bus.

Ray tracing hardware exists only on the 4090 D, which has 114 RT cores. The H20 lists null for RT cores, meaning it lacks dedicated ray tracing units. Tensor cores appear on both: 456 on the 4090 D and 312 on the H20. The H20's FP16 advantage stems from its 2:1 compute ratio, whereas the 4090 D provides FP16 at a 1:1 ratio with FP32.

Power characteristics differ notably. The 4090 D has a TDP of 425 W with a suggested PSU of 800 W. The H20 consumes 500 W with a suggested PSU of 900 W. The H20's higher power draw aligns with its server orientation and larger memory subsystem. The 4090 D measures 304 mm in length, 137 mm in height, and 61 mm in width. The H20 has no recorded dimensions, consistent with its SXM module form factor.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The RTX 4090 D delivers 73.54 TFLOPS of FP32 performance, while the H20 delivers 39.54 TFLOPS. The 4090 D is about 86% higher in this metric.

Q: How much memory does each GPU provide?

A: The H20 provides 96 GB of HBM3 memory with 4.03 TB/s bandwidth. The RTX 4090 D provides 24 GB of GDDR6X memory with 1.01 TB/s bandwidth.

Q: Does the H20 support graphics APIs?

A: No. The H20 lists DirectX, OpenGL, and Vulkan as N/A. The RTX 4090 D supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: What are the production statuses of each GPU?

A: The RTX 4090 D is end-of-life, having been released on December 27, 2023. The H20 is active, with a release date of January 31, 2024.

Q: Which GPU has more tensor cores?

A: The RTX 4090 D has 456 tensor cores. The H20 has 312 tensor cores.

Q: What is the RTX 4090 D's percentile ranking?

A: The RTX 4090 D ranks in the 98th percentile among all GPUs in the database. The H20 has a 50th percentile ranking with no recorded benchmark scores.

The Verdict

The data indicates two distinct tools for different workloads. The RTX 4090 D is a graphics-first card with strong rasterization, ray tracing, and rendering capabilities. Its 73.54 TFLOPS FP32, 114 RT cores, and display outputs make it suitable for client-side graphics workloads. Its nearest rivals, all within 4.9% in average score, confirm its competitiveness in the high-end graphics segment. The 4090 D's 98th percentile standing among all GPUs supports this position.

The H20 is a memory-heavy compute accelerator. Its 96 GB HBM3 pool and 4.03 TB/s bandwidth target large-scale data processing, AI inference, and memory-bound scientific compute. Its 79.07 TFLOPS FP16 throughput exceeds the 4090 D's 73.54 TFLOPS, making it stronger for mixed-precision workloads. The H20's lack of display outputs and graphics API support excludes it from any rendering role. Its active production status and server form factor indicate a deployment-focused design.

For users requiring a graphics card with real-time rendering, the RTX 4090 D is the clear choice. For server deployments needing maximum memory capacity and bandwidth, the H20 is the data-backed option. The 4090 D's end-of-life status does not diminish its benchmark standing, while the H20's lack of recorded benchmarks means its performance claims rest entirely on architecture specifications. The database records no head-to-head tests, so any direct performance comparison between the two remains unquantified.

Specification Differences

| Specification | NVIDIA GeForce RTX 4090 D | NVIDIA H20 |

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

| Chip | AD102 | GH100 |

| Architecture | Ada Lovelace | Hopper |

| Process Node | 5 nm | 5 nm |

| Transistors | 76,300 million | 80,000 million |

| Die Size | 609 mm² | 814 mm² |

| Transistor Density | 125.3M / mm² | 98.3M / mm² |

| Base Clock | 2280 MHz | 1830 MHz |

| Boost Clock | 2520 MHz | 1980 MHz |

| Memory Size | 24 GB | 96 GB |

| Memory Type | GDDR6X | HBM3 |

| Memory Bus Width | 384 bit | 6144 bit |

| Memory Bandwidth | 1.01 TB/s | 4.03 TB/s |

| Effective Memory Clock | 21 Gbps | 5.3 Gbps |

| Shading Units | 14592 | 9984 |

| TMUs | 456 | 312 |

| ROPs | 176 | 24 |

| RT Cores | 114 | null |

| Tensor Cores | 456 | 312 |

| Pixel Rate | 443.5 GPixel/s | 47.52 GPixel/s |

| Texture Rate | 1,149.1 GTexel/s | 617.8 GTexel/s |

| FP32 | 73.54 TFLOPS | 39.54 TFLOPS |

| FP16 | 73.54 TFLOPS (1:1) | 79.07 TFLOPS (2:1) |

| TDP | 425 W | 500 W |

| Slot Width | Triple-slot | SXM Module |

| Power Connectors | 1x 16-pin | null |

| Suggested PSU | 800 W | 900 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

| Display Outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a | No outputs |

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

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Production Status | End-of-life | Active |

| Release Date | 2023-12-27 | 2024-01-31 |

| Predecessor | GeForce 30 | Server Ada |

| Successor | GeForce 50 | Server Blackwell |

| Launch MSRP | 1,599 USD | null |