AMD Radeon Pro VII vs AMD Radeon Pro W6800X Duo Comparison

The AMD Radeon Pro W6800X Duo and the AMD Radeon Pro VII represent two distinct generations of AMD's professional GPU lineup, and the benchmark data shows a clear, though not absolute, hierarchy between them. The W6800X Duo, based on the RDNA 2.0 architecture, dominates the Pro VII across every recorded test, with an average benchmark score of 135,774 compared to the Pro VII's 97,131. This places the W6800X Duo in the 96th percentile of all GPUs, while the Pro VII sits slightly lower at the 93rd percentile, indicating that while both are high-end performers, the newer card occupies a decisively higher performance tier.

Head-to-Head Benchmarks

The most striking result in the head-to-head comparison comes from the Geekbench Metal test, where the W6800X Duo scores 157,365 against the Pro VII's 108,383. This represents a 45.2% advantage for the newer card, the largest margin across all three benchmarks. The Metal API is particularly relevant for professional Mac workflows, and this substantial lead suggests that the W6800X Duo handles compute-heavy tasks with significantly greater efficiency. The data shows a clear generational leap, as the RDNA 2.0 architecture's improvements are most apparent in this API.

The OpenCL benchmark tells a similar story, albeit with a slightly narrower gap. The W6800X Duo achieves 124,335 points, while the Pro VII manages 90,148, resulting in a 37.9% delta. This test is often used for cross-platform compute workloads, and the consistent ~38-45% advantage across different APIs indicates that the W6800X Duo's superiority is not tied to a specific driver or API optimization but rather reflects a fundamental architectural advantage. The W6800X Duo's FP32 throughput of 15.11 TFLOPS versus the Pro VII's 13.06 TFLOPS aligns with this benchmark behavior, showing a raw compute advantage of roughly 15.7%.

The Vulkan test shows the smallest, yet still decisive, margin. Here, the W6800X Duo scores 125,622 against the Pro VII's 92,862, a 35.3% difference. Vulkan is often used for real-time rendering and game development, and this result confirms that the W6800X Duo's advantage extends to modern graphics APIs. Interestingly, the Pro VII's Vulkan score of 92,862 is its lowest of the three tests, while the W6800X Duo's Vulkan score of 125,622 is its second-highest, suggesting the newer architecture has better optimization for this modern API. The Pro VII supports Vulkan 1.3, while the W6800X Duo supports Vulkan 1.4, which may contribute to this disparity.

Where Each One Wins

The data presents a one-sided picture: the W6800X Duo wins all three head-to-head benchmarks, leaving the Pro VII with zero victories. However, the nature of these wins reveals different use-case strengths. The W6800X Duo's largest advantage comes in Metal (45.2%), followed by OpenCL (37.9%), and then Vulkan (35.3%). This pattern suggests that the W6800X Duo is exceptionally well-suited for Apple ecosystem applications, where Metal is the primary API, and for general-purpose compute tasks that leverage OpenCL.

For the Pro VII, the absence of a single benchmark win means it cannot claim superiority in any tested workload. However, examining its nearest rivals provides context. The Pro VII's average score of 97,131 places it 5% ahead of the AMD Radeon Instinct MI60 (92,466) and 6% ahead of the NVIDIA RTX A4500 (91,671). This indicates that while it loses decisively to the W6800X Duo, it remains a competitive card within its own generation, particularly for users who do not require the absolute top-tier performance. The Pro VII's 1.02 TB/s memory bandwidth, derived from its 4096-bit HBM2 bus, is notably high, and this could provide advantages in memory-bound workloads that do not appear in these particular Geekbench tests.

The W6800X Duo's 32 GB of memory doubles the Pro VII's 16 GB, which is a critical advantage for large datasets, high-resolution textures, or multi-tasking with multiple GPU-intensive applications. The Pro VII's 16 GB may still suffice for many tasks, but the W6800X Duo's capacity headroom is a clear differentiator for users with extreme memory demands. Additionally, the W6800X Duo's 60 ray tracing cores provide a capability the Pro VII entirely lacks, making the newer card the only option for hardware-accelerated ray tracing workloads.

Architecture Differences

The two cards are built on fundamentally different architectures. The W6800X Duo uses the Navi 21 chip based on RDNA 2.0, while the Pro VII uses the Vega 20 chip based on GCN 5.1. Both are manufactured on a 7 nm process at TSMC, but the similarities end there. The W6800X Duo packs 26,800 million transistors into a 520 mm² die, yielding a transistor density of 51.5 million per mm². The Pro VII is significantly smaller, with 13,230 million transistors on a 331 mm² die, resulting in a lower density of 40.0 million per mm². This higher density reflects the more advanced design of the RDNA 2.0 architecture.

Memory architecture presents one of the most dramatic differences. The W6800X Duo uses 32 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The Pro VII counters with 16 GB of HBM2 on a 4096-bit bus, achieving a much higher 1.02 TB/s bandwidth. This means the Pro VII has roughly double the memory bandwidth per byte of capacity, which can be beneficial for certain data-intensive operations. However, the W6800X Duo's 32 GB capacity offers more than double the total memory, allowing for far larger working sets.

Clock speeds also differ substantially. The W6800X Duo has a base clock of 1800 MHz and a boost clock of 1967 MHz, while the Pro VII operates at 1400 MHz base and 1700 MHz boost. The W6800X Duo's higher clocks contribute to its superior pixel rate of 188.8 GPixel/s versus 108.8 GPixel/s, and texture rate of 472.1 GTexel/s versus 408.0 GTexel/s. Despite having the same number of shading units (3840) and texture mapping units (240), the W6800X Duo's higher clock speeds and architectural efficiency give it a clear edge. The Pro VII does have a higher ROP count advantage at 64, but this does not offset the other differences.

Feature support shows a generational gap. The W6800X Duo supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Pro VII is limited to DirectX 12 (12_1) and Vulkan 1.3. The W6800X Duo also includes 60 ray tracing cores, which the Pro VII lacks entirely. The bus interface differs as well: the W6800X Duo uses Apple MPX, while the Pro VII uses PCIe 4.0 x16. This reflects their different target platforms, with the W6800X Duo designed for Apple's Mac Pro and the Pro VII being a more traditional PCIe card. Power requirements also differ, with the W6800X Duo rated at 400 W TDP and requiring an 800 W power supply, while the Pro VII draws 250 W and needs a 600 W unit.

The Verdict

Based strictly on the benchmark data, the AMD Radeon Pro W6800X Duo is the clear performance winner, taking all three head-to-head tests with margins ranging from 35.3% to 45.2%. Its average benchmark score of 135,774 is 39.7% higher than the Pro VII's 97,131. For users whose primary concern is raw performance across Metal, OpenCL, and Vulkan workloads, the W6800X Duo is the unequivocal choice. Its 32 GB of memory and 60 ray tracing cores provide additional capabilities that the Pro VII cannot match.

However, the Pro VII is not without merit. Its 1.02 TB/s memory bandwidth is exceptional, and its 16 GB of HBM2 memory may be sufficient for many professional workloads. The Pro VII's lower 250 W TDP means it requires less power and a smaller power supply, which could be relevant for system builders with power constraints. Additionally, the Pro VII's PCIe 4.0 x16 interface offers broader compatibility with standard workstation motherboards, whereas the W6800X Duo's Apple MPX interface limits it to Apple systems. For users who need a capable professional GPU for a standard PC build, the Pro VII remains a viable option, especially given its 6% advantage over the NVIDIA RTX A4500 and 5% edge over the AMD Radeon Instinct MI60. The choice ultimately depends on whether the user prioritizes absolute performance (W6800X Duo) or platform compatibility and power efficiency (Pro VII).

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon Pro W6800X Duo has an average benchmark score of 135,774, compared to the AMD Radeon Pro VII's 97,131.

Q: How much faster is the W6800X Duo in the Geekbench Metal test?

A: The W6800X Duo scores 157,365 versus the Pro VII's 108,383, which represents a 45.2% advantage for the W6800X Duo.

Q: Does the Pro VII have any ray tracing capabilities?

A: No, the Pro VII has no ray tracing cores, while the W6800X Duo includes 60 ray tracing cores.

Q: What is the memory capacity and bandwidth difference between the two?

A: The W6800X Duo has 32 GB of GDDR6 memory with 512.0 GB/s bandwidth, while the Pro VII has 16 GB of HBM2 memory with 1.02 TB/s bandwidth.

Q: Which card supports a newer version of DirectX?

A: The W6800X Duo supports DirectX 12 Ultimate (12_2), while the Pro VII supports DirectX 12 (12_1).

Q: Are both cards still in production?

A: No, both are end-of-life products. The Pro VII was released in May 2020, and the W6800X Duo was released in August 2021.

Specification Differences

| Specification | AMD Radeon Pro W6800X Duo | AMD Radeon Pro VII |

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

| Chip | Navi 21 | Vega 20 |

| Architecture | RDNA 2.0 | GCN 5.1 |

| Transistors | 26,800 million | 13,230 million |

| Die Size | 520 mm² | 331 mm² |

| Transistor Density | 51.5M / mm² | 40.0M / mm² |

| Base Clock | 1800 MHz | 1400 MHz |

| Boost Clock | 1967 MHz | 1700 MHz |

| Memory Size | 32 GB | 16 GB |

| Memory Type | GDDR6 | HBM2 |

| Memory Bus Width | 256 bit | 4096 bit |

| Memory Bandwidth | 512.0 GB/s | 1.02 TB/s |

| ROPs | 96 | 64 |

| Ray Tracing Cores | 60 | None |

| Pixel Rate | 188.8 GPixel/s | 108.8 GPixel/s |

| Texture Rate | 472.1 GTexel/s | 408.0 GTexel/s |

| FP32 Performance | 15.11 TFLOPS | 13.06 TFLOPS |

| TDP | 400 W | 250 W |

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

| Suggested PSU | 800 W | 600 W |

| Bus Interface | Apple MPX | PCIe 4.0 x16 |

| Display Outputs | 1x HDMI 2.1, 4x Thunderbolt | 6x mini-DisplayPort 1.4a |

| DirectX Support | 12 Ultimate (12_2) | 12 (12_1) |

| Vulkan Support | 1.4 | 1.3 |

| Dimensions (LxH) | 267 mm x 120 mm | 305 mm x 111 mm |

| Release Date | 2021-08-02 | 2020-05-12 |

| Launch MSRP | 4,999 USD | 1,899 USD |