GPU Comparison

The NVIDIA RTX 6000D and AMD Radeon Pro W6800X represent two very different philosophies in professional graphics, separated by four years of architecture evolution and aimed at distinct workstation ecosystems. The data shows a decisive performance gap, but the comparison is more nuanced than raw speed alone.

Head-to-Head Benchmarks

The only directly comparable benchmark in the data is Geekbench OpenCL, and the result is a landslide. The NVIDIA RTX 6000D scores 388,405 points, while the AMD Radeon Pro W6800X manages 124,498 points. That translates to a 212% delta, the NVIDIA card is more than three times faster in this compute-oriented test. This is not a marginal victory; it is a generational gap made visible in a single number. The RTX 6000D’s FP32 throughput of 97.04 TFLOPS versus the W6800X’s 16.03 TFLOPS explains the chasm, as OpenCL heavily exercises raw shading and compute resources.

However, the W6800X does have a separate benchmark result that the RTX 6000D lacks: a Geekbench Metal score of 196,844. This is an Apple-specific API, and the W6800X is built for the Mac Pro ecosystem via its Apple MPX interface. On its home turf, the W6800X is competitive, but there is no direct Metal score for the RTX 6000D to compare against. In broader terms, the RTX 6000D’s average benchmark score of 195,964 places it in the 98th percentile of all GPUs, while the W6800X’s 160,671 average score sits in the 97th percentile. Both are elite-tier performers, but the RTX 6000D’s average is 35,293 points higher, a 22% gap that mirrors the OpenCL disparity.

The RTX 6000D’s nearest rivals in the database include the NVIDIA A100 PCIe 80 GB, which scores 207,124 (5.4% higher than the RTX 6000D), and the Tesla V100S PCIe 32 GB, which scores 194,415 (0.8% lower). This suggests the RTX 6000D sits firmly in data-center-class territory. Meanwhile, the W6800X’s closest competitors are workstation cards like the NVIDIA RTX 4500 Ada Generation (166,094, 3.3% higher) and the AMD Radeon PRO W7800 (164,894, 2.6% higher), indicating it is a mid-to-high-end workstation part, not a compute monster.

FAQ

Q: Which card has the higher raw compute throughput?

A: The NVIDIA RTX 6000D delivers 97.04 TFLOPS FP32 and 97.04 TFLOPS FP16 (1:1), while the AMD Radeon Pro W6800X offers 16.03 TFLOPS FP32 and 32.06 TFLOPS FP16 (2:1). The RTX 6000D is over 6x faster in FP32 and roughly 3x faster in FP16.

Q: How do their memory subsystems compare?

A: The RTX 6000D has 84 GB of GDDR7 on a 448-bit bus, yielding 1.40 TB/s bandwidth. The W6800X has 32 GB of GDDR6 on a 256-bit bus, providing 512.0 GB/s. The NVIDIA card has 2.6x the capacity and 2.7x the bandwidth.

Q: Are both cards still in production?

A: No. The RTX 6000D is marked as Active production status, while the W6800X is End-of-life. The W6800X was released on 2025-08-02, and the RTX 6000D on 2025-07-13, making the AMD part the older design.

Q: What is the physical footprint difference?

A: The RTX 6000D is a dual-slot card measuring 304 mm in length, 137 mm in height, and 40 mm in width. The W6800X is a quad-slot card measuring 267 mm by 120 mm, with no width listed. Despite being shorter, the AMD card takes up more slot space.

Q: Do they support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 6000D adds a Tensor core count of 624, while the W6800X has no tensor cores listed.

Q: Which card has higher pixel and texture throughput?

A: The RTX 6000D achieves 466.6 GPixel/s pixel rate and 1,516.3 GTexel/s texture rate. The W6800X delivers 200.4 GPixel/s and 500.9 GTexel/s. The NVIDIA card is 2.3x faster in pixel fill and 3x faster in texture fill.

Architecture Differences

The RTX 6000D is built on the GB202 chip using NVIDIA’s Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. It packs 92,200 million transistors into a 750 mm² die, yielding a transistor density of 122.9M per mm². The W6800X uses the Navi 21 chip with AMD’s RDNA 2.0 architecture, also from TSMC but on a 7 nm node. It contains 26,800 million transistors across a 520 mm² die, for a density of 51.5M per mm². The Blackwell chip has 3.4x the transistor count and 1.4x the die area, making it a fundamentally more complex part.

The compute resources reflect this gap. The RTX 6000D features 19,968 shading units, 624 TMUs, 192 ROPs, 156 RT cores, and 624 tensor cores. The W6800X has 3,840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores, with no tensor core equivalent. Clock speeds differ too: the RTX 6000D runs at 1992 MHz base and 2430 MHz boost, while the W6800X runs at 1800 MHz base and 2087 MHz boost. The memory architectures are generationally apart: GDDR7 at 25 Gbps effective on the NVIDIA side versus GDDR6 at 16 Gbps effective on the AMD side.

Power and connectivity also diverge sharply. The RTX 6000D consumes 600 W TDP, requires a single 16-pin power connector, and suggests a 1000 W PSU. It interfaces via PCIe 5.0 x16 and outputs four DisplayPort 2.1b connections. The W6800X draws only 200 W, uses Apple MPX power and bus interfaces, and suggests a 550 W PSU. Its display outputs are one HDMI 2.1 and four Thunderbolt ports, reflecting its Mac Pro design target.

The Verdict

The benchmark data is unambiguous: the RTX 6000D is the superior performer in raw compute, memory bandwidth, and rendering throughput. It wins the only head-to-head benchmark by 212%, and its average score is 22% higher. The RTX 6000D also has 84 GB of memory versus 32 GB, a 448-bit bus versus 256-bit, and nearly double the pixel fill rate. For any workload that scales with FP32 compute or memory capacity, the RTX 6000D is the correct choice.

The W6800X, however, is not without merit. Its Metal score of 196,844 demonstrates strong performance within Apple’s ecosystem, and its 200 W TDP makes it far more power-efficient in absolute terms. It is also a quad-slot card designed specifically for the Apple MPX interface, meaning it slots into Mac Pro systems without modification. The RTX 6000D, with its PCIe 5.0 x16 interface and DisplayPort outputs, is a PC-native card.

The decision hinges on platform. If the system is a Mac Pro, the W6800X is the only one of these two that physically fits via the Apple MPX connector. If the system is a PC workstation, the RTX 6000D is the overwhelming winner on every measurable metric in the data. The RTX 6000D also has the advantage of being an active product, while the W6800X is end-of-life, which matters for long-term support and availability.

Specification Differences

| Specification | NVIDIA RTX 6000D | AMD Radeon Pro W6800X |

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

| Chip | GB202 | Navi 21 |

| Architecture | Blackwell 2.0 | RDNA 2.0 |

| Process Node | 5 nm | 7 nm |

| Transistors | 92,200 million | 26,800 million |

| Die Size | 750 mm² | 520 mm² |

| Base Clock | 1992 MHz | 1800 MHz |

| Boost Clock | 2430 MHz | 2087 MHz |

| Memory Size | 84 GB | 32 GB |

| Memory Type | GDDR7 | GDDR6 |

| Memory Bus | 448 bit | 256 bit |

| Memory Bandwidth | 1.40 TB/s | 512.0 GB/s |

| Shading Units | 19968 | 3840 |

| TMUs | 624 | 240 |

| ROPs | 192 | 96 |

| RT Cores | 156 | 60 |

| Tensor Cores | 624 | None |

| FP32 Performance | 97.04 TFLOPS | 16.03 TFLOPS |

| FP16 Performance | 97.04 TFLOPS (1:1) | 32.06 TFLOPS (2:1) |

| Pixel Rate | 466.6 GPixel/s | 200.4 GPixel/s |

| Texture Rate | 1,516.3 GTexel/s | 500.9 GTexel/s |

| TDP | 600 W | 200 W |

| Slot Width | Dual-slot | Quad-slot |

| Power Connector | 1x 16-pin | Apple MPX |

| Suggested PSU | 1000 W | 550 W |

| Bus Interface | PCIe 5.0 x16 | Apple MPX |

| Display Outputs | 4x DisplayPort 2.1b | 1x HDMI 2.1, 4x Thunderbolt |

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

| Release Date | 2025-07-13 | 2021-08-02 |

Where Each One Wins

The RTX 6000D wins in every scenario that demands raw computational horsepower. Its 97.04 TFLOPS FP32 rate and 1.40 TB/s memory bandwidth make it ideal for GPU-accelerated simulation, large-scale rendering, and AI inference tasks that can leverage its 624 tensor cores. The 84 GB GDDR7 frame buffer is a decisive advantage for workloads that exceed 32 GB, such as massive 3D scenes, high-resolution texture sets, or multi-model machine learning batches. Its dual-slot form factor and PCIe 5.0 interface also make it more adaptable to standard PC workstation builds.

The W6800X wins specifically in Apple Mac Pro environments. Its Apple MPX connector is a hard requirement for that platform, and its 200 W TDP means it can be powered without external adapters in that chassis. The Metal benchmark score of 196,844 indicates solid performance for macOS-optimized applications, and the four Thunderbolt outputs provide flexible display connectivity for professional video workflows. Its smaller physical length (267 mm) might fit in tighter enclosures, though the quad-slot width offsets that advantage.

For power-sensitive builds, the W6800X’s 200 W TDP versus the RTX 6000D’s 600 W TDP is a significant differentiator. The AMD card requires only a 550 W PSU, while the NVIDIA card suggests 1000 W. However, the RTX 6000D delivers roughly 6x the FP32 compute for 3x the power draw, making it more compute-efficient per watt in absolute throughput terms. The data does not support calling the W6800X a better value; it simply occupies a different niche, legacy Apple workstations versus modern PC compute.