AMD Radeon Pro W6800X vs NVIDIA RTX 6000 Ada Generation Comparison

The NVIDIA RTX 6000 Ada Generation and AMD Radeon Pro W6800X occupy different tiers of the workstation market, and the benchmark data reflects a decisive gap in raw compute performance. The RTX 6000 Ada leads the only shared benchmark, Geekbench OpenCL, by a massive 150.3%, posting a score of 311,629 against the W6800X’s 124,498. This places the NVIDIA card in the 99th percentile of all GPUs, while the AMD card sits in the 97th, but the average benchmark scores tell a starker story: 287,237 for the RTX 6000 Ada versus 160,671 for the W6800X. The data indicates that the RTX 6000 Ada is in a different performance class, though the W6800X has its own niche strengths, particularly in Apple-centric environments and FP16 throughput.

Where Each One Wins

The NVIDIA RTX 6000 Ada Generation wins decisively in OpenCL compute, which is the only direct head-to-head benchmark available. Its score of 311,629 dwarfs the AMD card’s 124,498, a 150.3% advantage. This is not a marginal lead; it is a categorical dominance that suggests the RTX 6000 Ada is built for heavy, sustained compute workloads such as rendering, simulation, and AI inference. The card also carries 48 GB of GDDR6 memory with 960.0 GB/s of bandwidth, which is 50% more memory and nearly double the bandwidth of the W6800X’s 32 GB and 512.0 GB/s. For tasks that saturate VRAM, such as large-scale 3D scenes or complex data sets, the RTX 6000 Ada will simply run out of memory constraints later.

The AMD Radeon Pro W6800X wins in the context of its intended platform: Apple Mac systems. Its benchmark results include a Geekbench Metal score of 196,844, a test the NVIDIA card does not have a recorded entry for. The W6800X uses an Apple MPX power connector and bus interface, and its display outputs are 1x HDMI 2.1 and 4x Thunderbolt, indicating it is designed for macOS ecosystems rather than generic PC workstations. Furthermore, the W6800X has a higher base clock at 1800 MHz versus 915 MHz, and its FP16 performance is rated at 32.06 TFLOPS, which is over double its FP32 rate due to a 2:1 ratio. The RTX 6000 Ada, by contrast, has a 1:1 FP16/FP32 ratio, meaning its FP16 throughput equals its FP32 throughput at 91.06 TFLOPS. The AMD card’s FP16 advantage relative to its own FP32 makes it potentially useful for workloads that exploit half-precision arithmetic, though its absolute FP16 number is still lower than the NVIDIA card’s.

The Verdict

The verdict is clear from the data: choose the NVIDIA RTX 6000 Ada Generation for maximum raw compute performance. It wins the sole head-to-head benchmark by 150.3%, has a 78.8% higher average benchmark score (287,237 vs 160,671), and offers 48 GB of memory versus 32 GB. Its 91.06 TFLOPS FP32 performance is over five times the 16.03 TFLOPS of the W6800X. The RTX 6000 Ada also has 18,176 shading units, 568 TMUs, and 192 ROPs, whereas the W6800X has 3,840 shading units, 240 TMUs, and 96 ROPs. Any workload that relies on raw shading power, ray tracing, or large memory footprints will favor the NVIDIA card. Its nearest rival comparison shows it is 1.1% ahead of the NVIDIA L40 and 14.4% ahead of the NVIDIA L20, confirming its position as a top-tier compute card.

Choose the AMD Radeon Pro W6800X if you are building or upgrading a Mac Pro or similar Apple workstation. Its Apple MPX interface and Thunderbolt outputs are not standard on PC cards, and its 200 W TDP is lower than the RTX 6000 Ada’s 300 W, making it a more power-efficient option in that constrained environment. The W6800X also has a higher base clock (1800 MHz vs 915 MHz) and a shorter release history in terms of price positioning, though the data does not support a value argument. For users who primarily use Metal-accelerated applications on macOS, the W6800X is the only one of the two that has a recorded Metal benchmark, scoring 196,844. The RTX 6000 Ada has no Metal score, so its behavior in that API is unverified.

Head-to-Head Benchmarks

The only direct comparison available is Geekbench OpenCL, and the result is lopsided. The NVIDIA RTX 6000 Ada Generation scores 311,629, while the AMD Radeon Pro W6800X scores 124,498. The delta is 150.3%, meaning the NVIDIA card is roughly two and a half times faster in this test. This is consistent with the hardware specifications: the RTX 6000 Ada has 18,176 shading units versus 3,840, a 4.7x difference, and its texture rate is 1,422.8 GTexel/s versus 500.9 GTexel/s, a 2.8x difference. The pixel rate also favors NVIDIA at 481.0 GPixel/s versus 200.4 GPixel/s.

Looking at the broader benchmark context, the RTX 6000 Ada’s average score of 287,237 places it within 1.1% of the NVIDIA L40 and 2.9% below the NVIDIA L40S, showing it is competitive with other high-end data center cards. The AMD W6800X’s average score of 160,671 is within 1.1% of the NVIDIA A100 PCIe 40 GB and 2.6% of the AMD Radeon PRO W7800, indicating it sits in the mid-to-high workstation tier but well below the top. The RTX 6000 Ada’s Geekbench Vulkan score of 262,845 is also notable, though the W6800X has no Vulkan score recorded. The absence of a Vulkan result for the AMD card and the absence of a Metal result for the NVIDIA card means cross-API comparisons are incomplete, but the OpenCL gap is so large that it dominates the analysis.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX 6000 Ada Generation has an average benchmark score of 287,237, which is 78.8% higher than the AMD Radeon Pro W6800X’s average of 160,671.

Q: Is the AMD Radeon Pro W6800X competitive with the RTX 6000 Ada in any benchmark?

A: The W6800X has a recorded Geekbench Metal score of 196,844, which the RTX 6000 Ada lacks. In terms of FP16 performance, the W6800X achieves 32.06 TFLOPS, which is double its FP32 rate, but this is still lower than the RTX 6000 Ada’s 91.06 TFLOPS FP16.

Q: What is the memory capacity and bandwidth difference?

A: The RTX 6000 Ada has 48 GB of GDDR6 memory on a 384-bit bus, yielding 960.0 GB/s bandwidth. The W6800X has 32 GB of GDDR6 on a 256-bit bus, yielding 512.0 GB/s bandwidth. The NVIDIA card has 50% more memory and 87.5% more bandwidth.

Q: Which card has a higher transistor count?

A: The NVIDIA RTX 6000 Ada has 76,300 million transistors on a 5 nm process, while the AMD W6800X has 26,800 million transistors on a 7 nm process. Both are manufactured by TSMC.

Q: Are these cards still in production?

A: No, both are listed as end-of-life. The RTX 6000 Ada was released on 2022-12-02 and has a successor in Blackwell PRO W. The W6800X was released on 2021-08-02 and has no listed successor.

Q: What are the power requirements?

A: The RTX 6000 Ada has a TDP of 300 W and requires a 700 W power supply, using a single 16-pin connector. The W6800X has a TDP of 200 W and requires a 550 W power supply, using an Apple MPX connector.

Architecture Differences

The two cards are built on fundamentally different architectures. The NVIDIA RTX 6000 Ada uses the AD102 chip based on Ada Lovelace, fabricated on a 5 nm process at TSMC. It contains 76,300 million transistors on a 609 mm² die, giving a transistor density of 125.3M per mm². The AMD W6800X uses the Navi 21 chip based on RDNA 2.0, fabricated on a 7 nm process also at TSMC. It contains 26,800 million transistors on a 520 mm² die, with a transistor density of 51.5M per mm². The NVIDIA chip is significantly smaller in process node and denser, enabling higher compute in a similar physical footprint.

Feature-wise, the RTX 6000 Ada includes 142 ray tracing cores and 568 tensor cores, which are absent on the W6800X (its tensor core field is null). The AMD card has 60 ray tracing cores, but no dedicated tensor hardware. This means the NVIDIA card has dedicated hardware for AI acceleration and deep learning tasks, while the AMD card relies on its shader units for such workloads. The RTX 6000 Ada also has a 1:1 FP16/FP32 ratio, meaning it delivers 91.06 TFLOPS for both precisions, whereas the W6800X has a 2:1 ratio, delivering 32.06 TFLOPS FP16 versus 16.03 TFLOPS FP32.

The API support is identical: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the physical form factors differ. The RTX 6000 Ada is a dual-slot card with a PCIe 4.0 x16 interface, while the W6800X is a quad-slot card that uses an Apple MPX bus interface. The AMD card’s power connector is Apple MPX, whereas the NVIDIA card uses a standard 1x 16-pin connector.

Specification Differences

The key specification differences are stark. The NVIDIA RTX 6000 Ada has 18,176 shading units, 568 TMUs, and 192 ROPs, versus the AMD W6800X’s 3,840 shading units, 240 TMUs, and 96 ROPs. Clock speeds differ: the RTX 6000 Ada has a base clock of 915 MHz and a boost clock of 2505 MHz, while the W6800X has a base clock of 1800 MHz and a boost of 2087 MHz. Memory clocks also differ, with the NVIDIA card running at 2500 MHz (20 Gbps effective) and the AMD card at 2000 MHz (16 Gbps effective).

Memory configuration is a major differentiator: 48 GB GDDR6 on a 384-bit bus for NVIDIA versus 32 GB GDDR6 on a 256-bit bus for AMD. Bandwidth is 960.0 GB/s versus 512.0 GB/s. The RTX 6000 Ada has a pixel rate of 481.0 GPixel/s and a texture rate of 1,422.8 GTexel/s, while the W6800X has a pixel rate of 200.4 GPixel/s and a texture rate of 500.9 GTexel/s. FP32 performance is 91.06 TFLOPS versus 16.03 TFLOPS. Power draw is 300 W versus 200 W, with suggested PSUs of 700 W and 550 W, respectively.

Physical dimensions are similar in length (both 267 mm, or 10.5 inches), but the height differs: the RTX 6000 Ada is 112 mm (4.4 inches), while the W6800X is 120 mm (4.7 inches). Display outputs differ: the NVIDIA card has 4x DisplayPort 1.4a, while the AMD card has 1x HDMI 2.1 and 4x Thunderbolt. Release dates are also different, with the RTX 6000 Ada launching on 2022-12-02 and the W6800X on 2021-08-02. The launch MSRP for the RTX 6000 Ada is 6,799 USD, and for the W6800X it is 2,799 USD.