NVIDIA H20 vs NVIDIA RTX PRO 6000D Blackwell Max-Q Comparison

The Verdict

The database contains two NVIDIA accelerators aimed at different deployment scenarios. The NVIDIA H20 is a Hopper-generation server module built for datacenter compute density, while the NVIDIA RTX PRO 6000D Blackwell Max-Q is a Blackwell-generation professional workstation card. The recorded data shows no head-to-head benchmark comparisons between them; the H20 has no benchmark entries, and the RTX PRO 6000D Blackwell Max-Q has a single 3DMark Steel Nomad DX12 score of 11,088.

The H20 is the choice for server racks where the SXM module form factor and 500 W thermal envelope fit into existing datacenter infrastructure. It uses HBM3 memory with 4.03 TB/s of bandwidth, which suits memory-bound datacenter workloads. The RTX PRO 6000D Blackwell Max-Q, with its dual-slot design, 300 W power draw, and four DisplayPort 2.1b outputs, is the option for professional workstations requiring graphics output and API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4). The H20 has no display outputs and no graphics API support, making it unsuitable for interactive visualization.

For users needing raw FP32 compute, the RTX PRO 6000D Blackwell Max-Q delivers 110.1 TFLOPS versus the H20's 39.54 TFLOPS. For FP16 throughput, the RTX PRO card matches its FP32 rate at 110.1 TFLOPS (1:1), while the H20 provides 79.07 TFLOPS (2:1). The RTX PRO card also includes 188 RT cores, which the H20 lacks entirely. The H20 counters with nearly 2.3 times the memory bandwidth (4.03 TB/s versus 1.79 TB/s) and a wider 6144-bit memory bus versus 512-bit.

FAQ

Q: Which card has higher FP32 performance?

A: The NVIDIA RTX PRO 6000D Blackwell Max-Q delivers 110.1 TFLOPS FP32, compared to the NVIDIA H20's 39.54 TFLOPS. That is roughly 2.8 times the FP32 throughput.

Q: Does the H20 support display output?

A: No. The H20 lists "No outputs" as its display configuration and has no DirectX, OpenGL, or Vulkan API support. The RTX PRO 6000D Blackwell Max-Q provides 4x DisplayPort 2.1b outputs and full graphics API support.

Q: What memory type and bandwidth does each card use?

A: The H20 uses 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s bandwidth. The RTX PRO 6000D Blackwell Max-Q uses 96 GB of GDDR7 on a 512-bit bus with 1.79 TB/s bandwidth.

Q: How do their power requirements compare?

A: The H20 has a 500 W TDP with a suggested 900 W PSU. The RTX PRO 6000D Blackwell Max-Q has a 300 W TDP with a suggested 700 W PSU.

Q: What is the launch MSRP of the RTX PRO 6000D Blackwell Max-Q?

A: The launch MSRP is 8,565 USD. The H20 has no launch MSRP recorded in the database.

Q: How does the RTX PRO 6000D Blackwell Max-Q compare to its nearest rivals in the database?

A: Its 3DMark Steel Nomad DX12 score of 11,088 matches the NVIDIA RTX PRO 6000 Blackwell Max-Q exactly (0% delta). It sits 0.1% ahead of the AMD Radeon RX 550 (11,075), 0.4% ahead of the NVIDIA GeForce GTX 1650 SUPER (11,047), and 1.2% behind the AMD FirePro W4300 (11,225).

Architecture Differences

The H20 is built on the GH100 chip using the Hopper architecture, manufactured by TSMC on a 5 nm process. It packs 80,000 million transistors into an 814 mm² die, yielding a transistor density of 98.3M per mm². The architecture generation is listed as Server Hopper (Hxx), with a predecessor of Server Ada and a successor of Server Blackwell. The H20 includes 9,984 shading units, 312 TMUs, 24 ROPs, and 312 tensor cores. It has no RT cores.

The RTX PRO 6000D Blackwell Max-Q uses the GB202 chip with the Blackwell 2.0 architecture, also on TSMC's 5 nm process. It contains 92,200 million transistors in a 750 mm² die, giving a transistor density of 122.9M per mm². The generation is Blackwell PRO W (x000), with a predecessor of Workstation Ada and no successor listed. This chip has 24,064 shading units, 752 TMUs, 192 ROPs, 188 RT cores, and 752 tensor cores. The higher transistor count, smaller die, and greater density indicate a more compact and feature-rich design, particularly in the RT core count and shading unit total.

The memory architectures diverge sharply. The H20 relies on HBM3 with a 6144-bit bus, which explains its high 4.03 TB/s bandwidth. The RTX PRO 6000D Blackwell Max-Q uses GDDR7 with a 512-bit bus and 1.79 TB/s bandwidth. The H20's memory clock is 1313 MHz (5.3 Gbps effective), while the RTX PRO card's memory clock is 1750 MHz (28 Gbps effective). Despite the faster per-pin data rate on GDDR7, the H20's wider bus provides over twice the total bandwidth.

The H20 is a server module (SXM Module) with no display outputs and no graphics APIs. The RTX PRO 6000D Blackwell Max-Q is a dual-slot card with a 1x 16-pin power connector, 4x DisplayPort 2.1b outputs, and full API support including DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. These architectural choices reflect two different product categories: compute-only server acceleration versus professional graphics workstations.

Specification Differences

| Specification | NVIDIA H20 | NVIDIA RTX PRO 6000D Blackwell Max-Q |

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

| Chip | GH100 | GB202 |

| Architecture | Hopper | Blackwell 2.0 |

| Generation | Server Hopper (Hxx) | Blackwell PRO W (x000) |

| Transistors | 80,000 million | 92,200 million |

| Die Size | 814 mm² | 750 mm² |

| Transistor Density | 98.3M / mm² | 122.9M / mm² |

| Base Clock | 1830 MHz | 1590 MHz |

| Boost Clock | 1980 MHz | 2288 MHz |

| Memory Clock | 1313 MHz (5.3 Gbps effective) | 1750 MHz (28 Gbps effective) |

| Memory Type | HBM3 | GDDR7 |

| Memory Bus Width | 6144 bit | 512 bit |

| Memory Bandwidth | 4.03 TB/s | 1.79 TB/s |

| Shading Units | 9,984 | 24,064 |

| TMUs | 312 | 752 |

| ROPs | 24 | 192 |

| RT Cores | None | 188 |

| Tensor Cores | 312 | 752 |

| Pixel Rate | 47.52 GPixel/s | 439.3 GPixel/s |

| Texture Rate | 617.8 GTexel/s | 1,720.6 GTexel/s |

| FP32 | 39.54 TFLOPS | 110.1 TFLOPS |

| FP16 | 79.07 TFLOPS (2:1) | 110.1 TFLOPS (1:1) |

| TDP | 500 W | 300 W |

| Slot Width | SXM Module | Dual-slot |

| Power Connectors | None listed | 1x 16-pin |

| Suggested PSU | 900 W | 700 W |

| Display Outputs | No outputs | 4x DisplayPort 2.1b |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | Not listed | 267 mm length, 111 mm height, 40 mm width |

| Release Date | 2024-01-31 | 2025-03-17 |

Both cards share 96 GB of memory, PCIe 5.0 x16 bus interface, 5 nm TSMC process, and Active production status. The H20's base clock is higher (1830 MHz versus 1590 MHz), but the RTX PRO card has the higher boost clock (2288 MHz versus 1980 MHz).

Head-to-Head Benchmarks

The database lists no direct head-to-head benchmark results between the H20 and the RTX PRO 6000D Blackwell Max-Q. The H20 has zero benchmark entries and an average benchmark score of 0. The RTX PRO 6000D Blackwell Max-Q has one recorded benchmark: 3DMark Steel Nomad DX12 with a score of 11,088.

Without overlapping benchmarks, the comparison must rely on compute specifications and the RTX PRO card's single recorded result. The RTX PRO card's 3DMark score of 11,088 places it in a tight cluster with its nearest rivals. It matches the NVIDIA RTX PRO 6000 Blackwell Max-Q at 11,088 (0% delta), edges the AMD Radeon RX 550 by 0.1% (11,075), leads the NVIDIA GeForce GTX 1650 SUPER by 0.4% (11,047), and trails the AMD FirePro W4300 by 1.2% (11,225). These deltas are small, indicating performance parity among this group in that specific DX12 test.

The H20's lack of any benchmark score means the database cannot verify its real-world performance against the RTX PRO card. The specification sheet, however, shows a clear split. The RTX PRO card leads in pixel rate (439.3 GPixel/s versus 47.52 GPixel/s), texture rate (1,720.6 GTexel/s versus 617.8 GTexel/s), FP32 (110.1 TFLOPS versus 39.54 TFLOPS), and FP16 (110.1 TFLOPS versus 79.07 TFLOPS). The H20 leads only in memory bandwidth (4.03 TB/s versus 1.79 TB/s) and has a wider memory bus (6144 bit versus 512 bit).

The FP16 comparison is notable: the RTX PRO card sustains 110.1 TFLOPS at a 1:1 ratio (same as FP32), while the H20's 79.07 TFLOPS comes at a 2:1 ratio, meaning its FP16 rate is double its FP32 rate. For workloads that rely on FP16 accumulation, the H20's architecture provides a dedicated path, but the RTX PRO card's absolute FP16 throughput is still higher.

Where Each One Wins

The NVIDIA H20 wins in memory bandwidth. Its 4.03 TB/s over a 6144-bit HBM3 interface is 2.25 times the RTX PRO card's 1.79 TB/s. This advantage matters for large-scale datacenter inference and training workloads that stream massive datasets through memory. The H20 also has a higher base clock (1830 MHz versus 1590 MHz), which may benefit sustained compute patterns, though its boost clock is lower (1980 MHz versus 2288 MHz). The H20's SXM Module form factor suits dense server deployments where multiple accelerators share a chassis, and its 500 W TDP aligns with datacenter power distribution. The H20 uses 96 GB of memory, matching the RTX PRO card, but with a memory type and bus width optimized for throughput rather than latency.

The NVIDIA RTX PRO 6000D Blackwell Max-Q wins in nearly every compute throughput metric. Its FP32 output of 110.1 TFLOPS is 2.8 times the H20's 39.54 TFLOPS. Its FP16 output of 110.1 TFLOPS is 1.4 times the H20's 79.07 TFLOPS. The card includes 188 RT cores, enabling hardware-accelerated ray tracing, which the H20 cannot perform. Its 24,064 shading units, 752 TMUs, and 192 ROPs dwarf the H20's 9,984, 312, and 24 respectively. The RTX PRO card's pixel rate of 439.3 GPixel/s is 9.2 times the H20's 47.52 GPixel/s, and its texture rate of 1,720.6 GTexel/s is 2.8 times the H20's 617.8 GTexel/s.

The RTX PRO card also wins in power efficiency per the recorded data: 300 W TDP versus 500 W, with a suggested PSU of 700 W versus 900 W. Its dual-slot design with 4x DisplayPort 2.1b outputs makes it usable in a workstation with monitors attached. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, enabling professional graphics applications, CAD, and content creation. The single 3DMark Steel Nomad DX12 score of 11,088 confirms it can run modern DX12 workloads at a level comparable to its nearest rivals.

The use-case split is clear. The H20 serves server-side compute where memory bandwidth is the bottleneck and no display output is needed. The RTX PRO 6000D Blackwell Max-Q serves workstation-class tasks requiring high FP32/FP16 throughput, ray tracing, graphics APIs, and display connectivity, all within a lower 300 W power envelope. The database shows no benchmark overlap, so direct performance comparisons remain unverified, but the specification differences point to two distinct product roles rather than direct competitors.