AMD Radeon Pro W6800X vs NVIDIA RTX 5000 Ada Generation Comparison

The NVIDIA RTX 5000 Ada Generation and the AMD Radeon Pro W6800X are both 32 GB workstation-class graphics cards, but they represent fundamentally different design philosophies and performance tiers. The data shows a clear overall performance advantage for the NVIDIA card, driven by its newer architecture and substantially higher compute resources, while the AMD card offers a specific advantage in a single Apple-centric benchmark. This analysis breaks down the specifications, benchmark results, and use-case implications for these two professional GPUs.

FAQ

Q: What is the average benchmark score difference between the two cards?

A: The NVIDIA RTX 5000 Ada Generation has an average benchmark score of 184,664, while the AMD Radeon Pro W6800X scores 160,671. This places the NVIDIA card approximately 14.9% higher on average, based on the delta between these two figures.

Q: Which card has a higher FP32 (single-precision) compute performance?

A: The NVIDIA RTX 5000 Ada Generation is significantly ahead, delivering 65.28 TFLOPS compared to the AMD Radeon Pro W6800X’s 16.03 TFLOPS. This is a roughly 4x difference in raw single-precision throughput.

Q: How do the two cards compare in the Geekbench OpenCL benchmark?

A: In the head-to-head Geekbench OpenCL test, the NVIDIA RTX 5000 Ada Generation scores 175,286, which is 40.8% higher than the AMD Radeon Pro W6800X’s score of 124,498. The NVIDIA card is the clear winner in this cross-platform test.

Q: Is the AMD card faster in any benchmark?

A: Yes, the AMD Radeon Pro W6800X has a benchmark result for Geekbench Metal, scoring 196,844. The NVIDIA card does not have a Metal benchmark listed in the data, so direct comparison is not possible, but this score is higher than the NVIDIA card's OpenCL and Vulkan scores.

Q: What are the process nodes for these GPUs?

A: The NVIDIA RTX 5000 Ada Generation uses a 5 nm process node, while the AMD Radeon Pro W6800X uses a 7 nm process node. Both are manufactured by TSMC.

Q: What is the memory bandwidth of each card?

A: The NVIDIA RTX 5000 Ada Generation has a memory bandwidth of 576.0 GB/s, which is higher than the AMD Radeon Pro W6800X’s 512.0 GB/s. Both cards have a 256-bit memory bus and 32 GB of GDDR6 memory.

Architecture Differences

The architectural divide between the two cards is stark. The NVIDIA RTX 5000 Ada Generation is built on the Ada Lovelace architecture, using the AD102 chip, and is fabricated on a 5 nm process by TSMC. This allows for a massive 76,300 million transistors on a 609 mm² die, resulting in a transistor density of 125.3M per mm². In contrast, the AMD Radeon Pro W6800X is based on the RDNA 2.0 architecture, uses the Navi 21 chip, and is built on a 7 nm process. It houses 26,800 million transistors on a 520 mm² die, for a density of 51.5M per mm².

This difference in manufacturing process and chip size translates directly to compute resources. The NVIDIA card features 12,800 shading units, 400 texture mapping units (TMUs), and 176 render output units (ROPs). It also includes 100 RT cores and 400 tensor cores. The AMD card, by comparison, has 3,840 shading units, 240 TMUs, and 96 ROPs, along with 60 RT cores and no tensor cores. This roughly 3.3x advantage in shading units and 2.5x advantage in TMUs for NVIDIA is the primary driver of its performance lead.

Clock speeds present an interesting contrast. The AMD card has a significantly higher base clock of 1800 MHz and a boost clock of 2087 MHz, compared to NVIDIA’s 1155 MHz base and 2550 MHz boost. However, the sheer number of processing units in the NVIDIA architecture overwhelms the AMD card's clock speed advantage. The memory subsystems also differ, with NVIDIA’s memory running at an effective 18 Gbps versus AMD’s 16 Gbps, contributing to a bandwidth advantage for NVIDIA.

The cards also differ in their physical design and power requirements. The NVIDIA card is a dual-slot solution with a 250 W TDP and a 1x 16-pin power connector, suggesting a 600 W power supply. The AMD card is a quad-slot design with a 200 W TDP and uses an Apple MPX power connector, suggesting a 550 W power supply. The AMD card’s form factor, with a height of 120 mm versus NVIDIA’s 112 mm, is tailored for Apple Mac Pro systems, as indicated by its bus interface of Apple MPX.

Head-to-Head Benchmarks

The only direct benchmark comparison available in the data is the Geekbench OpenCL test, where the NVIDIA RTX 5000 Ada Generation decisively outperforms the AMD Radeon Pro W6800X. The NVIDIA card scored 175,286 points, while the AMD card scored 124,498 points. This represents a 40.8% advantage for the NVIDIA card, a substantial margin that highlights the raw compute capability difference between the two architectures.

This OpenCL result is consistent with the cards' peak theoretical performance figures. The NVIDIA card's FP32 throughput of 65.28 TFLOPS is far higher than the AMD card's 16.03 TFLOPS, and this compute density is the main reason for the benchmark win. While the AMD card demonstrates a higher FP16 throughput of 32.06 TFLOPS (2:1 ratio) versus NVIDIA’s 65.28 TFLOPS (1:1 ratio), the FP32 test aligns more closely with common professional workloads.

Looking at the broader benchmark picture, the NVIDIA card’s other scores reinforce its position. It achieves 194,041 in Geekbench Vulkan and 175,286 in OpenCL. The AMD card’s Geekbench Metal score of 196,844 is notably high, but there is no NVIDIA Metal score to compare it against. Given that the AMD card’s OpenCL score is significantly lower than its Metal score, the Metal result appears to be an outlier specific to Apple's API and may not represent general compute performance. The data clearly shows the NVIDIA card as the overall performance leader in the tests where both cards are present.

The Verdict

The benchmark data paints a clear picture: the NVIDIA RTX 5000 Ada Generation is the superior compute card for general-purpose and cross-platform professional workloads. Its 40.8% lead in the Geekbench OpenCL head-to-head test, combined with its higher average benchmark score (184,664 vs. 160,671), indicates a decisive performance advantage. The NVIDIA card is built for maximum throughput, with a 98th percentile ranking among all GPUs, edging out the AMD card’s 97th percentile.

The AMD Radeon Pro W6800X is a viable choice only within a very specific ecosystem. Its high Geekbench Metal score suggests that it is optimized for Apple's graphics stack, and its design as a quad-slot, Apple MPX-powered card is clearly intended for Mac Pro towers. For users locked into that environment who rely heavily on Metal-accelerated applications, the AMD card may be sufficient, but the data does not show it competing with the NVIDIA card on a like-for-like basis in OpenCL.

For anyone building a PC workstation or using cross-platform software like OpenCL, the NVIDIA RTX 5000 Ada Generation is the clear pick. It offers roughly 14.9% higher average performance and more than double the FP32 compute power. The NVIDIA card is the more versatile and powerful tool, while the AMD card serves a niche market segment.

Specification Differences

| Specification | NVIDIA RTX 5000 Ada Generation | AMD Radeon Pro W6800X |

| :--- | :--- | :--- |

| Architecture | Ada Lovelace | RDNA 2.0 |

| Chip | AD102 | Navi 21 |

| Process Node | 5 nm | 7 nm |

| Transistors | 76,300 million | 26,800 million |

| Die Size | 609 mm² | 520 mm² |

| Base Clock | 1155 MHz | 1800 MHz |

| Boost Clock | 2550 MHz | 2087 MHz |

| Memory Clock (Effective) | 18 Gbps | 16 Gbps |

| Memory Bandwidth | 576.0 GB/s | 512.0 GB/s |

| Shading Units | 12800 | 3840 |

| TMUs | 400 | 240 |

| ROPs | 176 | 96 |

| RT Cores | 100 | 60 |

| Tensor Cores | 400 | N/A |

| Pixel Rate | 448.8 GPixel/s | 200.4 GPixel/s |

| Texture Rate | 1,020.0 GTexel/s | 500.9 GTexel/s |

| FP32 Performance | 65.28 TFLOPS | 16.03 TFLOPS |

| FP16 Performance | 65.28 TFLOPS (1:1) | 32.06 TFLOPS (2:1) |

| TDP | 250 W | 200 W |

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

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

| Bus Interface | PCIe 4.0 x16 | Apple MPX |

| Dimensions (H) | 112 mm | 120 mm |

Where Each One Wins

The NVIDIA RTX 5000 Ada Generation wins in almost every measurable performance category. It excels in raw compute tasks, with its FP32 and FP16 performance being roughly 4x and 2x higher, respectively. Its texture rate of 1,020.0 GTexel/s is double that of the AMD card (500.9 GTexel/s), and its pixel rate of 448.8 GPixel/s is more than double (200.4 GPixel/s). This makes the NVIDIA card the definitive winner for rendering, simulation, scientific computing, and any workload that leverages OpenCL or Vulkan APIs. Its higher memory bandwidth of 576.0 GB/s also provides a distinct advantage in memory-intensive tasks.

The AMD Radeon Pro W6800X has a narrower set of advantages. Its primary win is in the Geekbench Metal benchmark, where it scores 196,844, indicating strong optimization for Apple's Metal API. Its higher base clock of 1800 MHz (versus NVIDIA's 1155 MHz) could theoretically benefit certain latency-sensitive tasks, but this does not translate into a benchmark win. The AMD card's lower TDP of 200 W is also a point of efficiency, though it is paired with a more cumbersome quad-slot design. Ultimately, the AMD card is the winner only in the specific context of an Apple Mac Pro environment where Metal is the primary graphics API, while the NVIDIA card is the winner for universal professional compute.