AMD Radeon Pro W6800X Duo vs NVIDIA RTX 6000D Comparison

Head-to-Head Benchmarks

The benchmark data available for direct comparison is limited to a single common test: Geekbench OpenCL. In this test, the NVIDIA RTX 6000D delivers a score of 388,405, while the AMD Radeon Pro W6800X Duo scores 124,335. This represents a decisive 212.4% advantage for the NVIDIA card in raw compute throughput. The RTX 6000D's OpenCL result is more than triple the AMD card's figure, making this a dominant win in the only head-to-head metric recorded.

Context from the aggregate benchmark database reinforces this gap. The NVIDIA RTX 6000D holds an average benchmark score of 195,964 across all tested workloads, placing it in the 98th percentile of all GPUs tracked. The AMD Radeon Pro W6800X Duo, by contrast, averages 135,774 and sits in the 96th percentile. The 60,190-point difference in average scores indicates that the NVIDIA card's superiority extends beyond just the OpenCL compute test, though the margin narrows considerably when averaged across a broader workload mix.

The RTX 6000D's nearest rivals help calibrate its position. It sits 0.8% above the Tesla V100S PCIe 32 GB, 4.7% above the A100 SXM4 40 GB, and 6.1% above the RTX 5000 Ada Generation. Only the A100 PCIe 80 GB outperforms it among listed comparables, by 5.4%. These are all professional-grade accelerators, and the 6000D holds its own within that tier. The W6800X Duo's nearest rivals are closer in score: it trails the Radeon PRO V620 by 0.5%, leads the PRO W6800 by 0.3%, and matches the A10M and RTX 4000 Ada Generation within 0.4%. This suggests the AMD card is competitive with mid-range workstation parts, but the NVIDIA card operates in a higher performance stratum.

The single head-to-head result is unambiguous. The RTX 6000D wins the only directly comparable benchmark by a wide margin, and its aggregate score is 44.3% higher than the W6800X Duo's. The data does not support any scenario where the AMD card matches the NVIDIA card in raw compute performance.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX 6000D averages 195,964 points across all recorded benchmarks, compared to 135,774 for the AMD Radeon Pro W6800X Duo. That is a 44.3% advantage for the NVIDIA card.

Q: How does the Geekbench OpenCL result compare between the two cards?

A: In the only direct head-to-head test available, the RTX 6000D scores 388,405 while the W6800X Duo scores 124,335. The NVIDIA card leads by 212.4% in this workload.

Q: What is the percentile ranking difference between the two GPUs?

A: The RTX 6000D ranks in the 98th percentile of all GPUs, while the W6800X Duo ranks in the 96th percentile. Both are high-performing cards, but the NVIDIA card sits closer to the absolute top of the database.

Q: Which card has higher FP32 compute throughput?

A: The RTX 6000D delivers 97.04 TFLOPS of FP32 performance, while the W6800X Duo delivers 15.11 TFLOPS. The NVIDIA card offers roughly 6.4 times the single-precision compute throughput.

Q: How do the cards compare in terms of memory bandwidth?

A: The RTX 6000D provides 1.40 TB/s of bandwidth from its 448-bit bus, while the W6800X Duo provides 512.0 GB/s from a 256-bit bus. The NVIDIA card offers 2.7 times the memory bandwidth.

Q: What is the production status of each card?

A: The NVIDIA RTX 6000D is listed as "Active" production, while the AMD Radeon Pro W6800X Duo is marked "End-of-life." The NVIDIA card was released on 2025-07-13, whereas the AMD card launched on 2021-08-02.

Where Each One Wins

The NVIDIA RTX 6000D is the clear winner in raw compute performance. Its Geekbench OpenCL score of 388,405 versus 124,335 gives it a 212.4% lead in that test. The aggregate benchmark average of 195,964 versus 135,774 confirms the NVIDIA card dominates across a wider range of workloads, not just the single tested metric. For any task that depends on FP32 throughput, the RTX 6000D's 97.04 TFLOPS versus 15.11 TFLOPS gives it an overwhelming advantage. Memory bandwidth also favors the NVIDIA card at 1.40 TB/s versus 512.0 GB/s, which matters for large dataset processing and high-resolution textures.

The AMD Radeon Pro W6800X Duo does not win any recorded benchmark in the head-to-head data. Its 96th percentile ranking is respectable, and its aggregate score of 135,774 places it well above average, but it trails the RTX 6000D in every comparable metric. The AMD card does have one notable advantage: FP16 throughput of 30.21 TFLOPS versus the RTX 6000D's 97.04 TFLOPS at a 2:1 ratio versus 1:1. However, the NVIDIA card still delivers more than three times the FP16 performance in absolute terms, so even this "win" is relative rather than absolute.

For users with specific Apple MPX ecosystem requirements, the W6800X Duo is the only option of the two, as it uses the Apple MPX bus interface. The RTX 6000D uses PCIe 5.0 x16. If the target system is a Mac Pro with MPX slots, the AMD card is the sole choice by interface compatibility. For all other use cases involving raw compute, memory bandwidth, or FP32 performance, the data points entirely toward the NVIDIA card.

Specification Differences

The two cards differ substantially across nearly every specification category. The RTX 6000D is built on a 5 nm process at TSMC, while the W6800X Duo uses a 7 nm process, also at TSMC. Transistor counts differ dramatically: the NVIDIA card packs 92,200 million transistors on a 750 mm² die, versus 26,800 million on a 520 mm² die for the AMD card. This yields a transistor density of 122.9M per mm² for NVIDIA versus 51.5M per mm² for AMD.

Clock speeds favor the NVIDIA card. The RTX 6000D runs at a base clock of 1992 MHz with a boost of 2430 MHz, while the W6800X Duo operates at 1800 MHz base and 1967 MHz boost. Memory clocks also differ: the NVIDIA card uses 1560 MHz with 25 Gbps effective speed, while the AMD card uses 2000 MHz with 16 Gbps effective.

Memory configuration is a major differentiator. The RTX 6000D has 84 GB of GDDR7 on a 448-bit bus, delivering 1.40 TB/s bandwidth. The W6800X Duo has 32 GB of GDDR6 on a 256-bit bus, providing 512.0 GB/s. The NVIDIA card offers 2.6 times the capacity and 2.7 times the bandwidth.

Compute unit counts also differ. The RTX 6000D has 19,968 shading units, 624 TMUs, 192 ROPs, 156 RT cores, and 624 tensor cores. The W6800X Duo has 3,840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores, with no tensor cores. Pixel rate is 466.6 GPixel/s for NVIDIA versus 188.8 GPixel/s for AMD, and texture rate is 1,516.3 GTexel/s versus 472.1 GTexel/s.

Power and physical specifications diverge. The RTX 6000D has a TDP of 600 W with a suggested PSU of 1000 W, while the W6800X Duo has a TDP of 400 W with a suggested PSU of 800 W. The NVIDIA card is dual-slot with a 1x 16-pin connector, while the AMD card is quad-slot with no listed power connector. The RTX 6000D measures 304 mm by 137 mm by 40 mm, while the W6800X Duo measures 267 mm by 120 mm, with no width listed.

Display outputs differ: the NVIDIA card offers 4x DisplayPort 2.1b, while the AMD card offers 1x HDMI 2.1 and 4x Thunderbolt. The bus interface is PCIe 5.0 x16 for NVIDIA versus Apple MPX for AMD. API support is identical: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Architecture Differences

The architectural divide between these two GPUs is generational. The NVIDIA RTX 6000D is based on the GB202 chip using Blackwell 2.0 architecture, belonging to the Blackwell PRO W (x000) generation. The AMD Radeon Pro W6800X Duo uses the Navi 21 chip with RDNA 2.0 architecture, belonging to the Radeon Pro Mac (Navi II Series) generation. These are fundamentally different designs from different eras, with the NVIDIA card being released roughly four years after the AMD card.

The Blackwell architecture in the RTX 6000D includes tensor cores, which are absent from the RDNA 2.0-based AMD card. This is a critical architectural difference for AI and machine learning workloads, where tensor core acceleration is increasingly important. The NVIDIA card also has 156 RT cores versus 60 on the AMD card, indicating a more robust ray tracing implementation.

Memory technology reflects the architectural generation gap. The RTX 6000D uses GDDR7, while the W6800X Duo uses GDDR6. The NVIDIA card's memory architecture supports a much wider 448-bit bus compared to 256-bit on the AMD card, directly contributing to its 1.40 TB/s bandwidth advantage. The 84 GB capacity on the NVIDIA card is more than double the 32 GB on the AMD card, suggesting a design target for very large models or datasets.

The process node difference is significant: 5 nm for NVIDIA versus 7 nm for AMD, both at TSMC. This, combined with the larger die size of 750 mm² versus 520 mm², allows the NVIDIA card to pack 92,200 million transistors versus 26,800 million. The transistor density of 122.9M per mm² versus 51.5M per mm² indicates a much more compact logic design on the Blackwell chip.

The FP16 compute ratio also differs. The RTX 6000D achieves FP16 performance at a 1:1 ratio with FP32, both at 97.04 TFLOPS. The W6800X Duo achieves FP16 at a 2:1 ratio, delivering 30.21 TFLOPS FP16 versus 15.11 TFLOPS FP32. This means the NVIDIA card's FP16 performance is achieved without any rate penalty relative to FP32, whereas the AMD card doubles its FP32 rate for FP16 operations.

The production status difference is telling: the RTX 6000D is active production, while the W6800X Duo is end-of-life. The AMD card was released on 2021-08-02, and the NVIDIA card on 2025-07-13. These are not merely different implementations of similar ideas; they represent two distinct architectural philosophies separated by a full hardware generation, with the NVIDIA card benefiting from newer process technology, a more advanced architecture, and a substantially larger silicon budget.