AMD Radeon PRO W6600 vs NVIDIA RTX 6000D Comparison

Head-to-Head Benchmarks

The only common benchmark recorded for both cards in the database is Geekbench OpenCL, and the result is a decisive sweep. The NVIDIA RTX 6000D scores 388,405 points, while the AMD Radeon PRO W6600 reaches 73,514 points. That puts the RTX 6000D ahead by 428.3%, a gap so large that it separates entirely different performance classes. No benchmark in the database shows a win for the AMD card, so the head-to-head record stands at 1 win for NVIDIA and 0 for AMD.

To frame that OpenCL score in context, the RTX 6000D’s overall average benchmark score is 195,964, which places it in the 98th percentile of all GPUs tracked. The Radeon PRO W6600, by contrast, carries an average score of 81,995 and sits in the 92nd percentile. The percentile difference alone, 98 versus 92, understates the raw chasm: the RTX 6000D’s average is roughly 2.4 times the AMD card’s average, and the OpenCL delta is nearly 5.3 times.

Look at the nearest rivals for each card to see how the RTX 6000D’s score fits. The database lists the NVIDIA Tesla V100S PCIe 32 GB at an average score of 194,415, which is only 0.8% below the RTX 6000D. The A100 SXM4 40 GB trails by 4.7%, and the RTX 5000 Ada Generation trails by 6.1%. Meanwhile, the A100 PCIe 80 GB sits 5.4% higher. This tells us the RTX 6000D is not merely fast; it is positioned in the same corridor as NVIDIA’s top accelerator cards, trading blows within a single-digit percentage band.

For the Radeon PRO W6600, its nearest neighbors are far lower. The AMD Radeon Pro Vega 64X is 1.3% behind, the GeForce RTX 5090 is 2.7% behind, and the Tesla P100 PCIe 16 GB and 12 GB are 3.0% and 3.3% behind, respectively. The W6600’s average score of 81,995 thus places it among mid-range workstation cards from several generations ago. The RTX 6000D’s single OpenCL result is 388,405, which is 4.73 times the W6600’s OpenCL score and 2.39 times the W6600’s average across all its recorded benchmarks.

The RTX 6000D also has additional recorded benchmarks beyond OpenCL. In 3DMark Steel Nomad DX12, it posts a score of 3,522, a test that the W6600 has no recorded entry for in the database. That absence is itself informative: the AMD card’s benchmark portfolio covers Metal, OpenCL, and Vulkan, but no DirectX 12 ray-traced workload, whereas the NVIDIA card’s recorded tests include both a DX12 scene and OpenCL. The RTX 6000D’s Geekbench OpenCL score of 388,405 is more than 5 times the W6600’s Vulkan score of 78,428 and more than 4 times its Metal score of 94,042.

The Verdict

From the recorded data, the choice is unambiguous for any workload that requires raw compute throughput. The NVIDIA RTX 6000D wins the only shared benchmark by 428.3%, holds a 98th percentile ranking versus the W6600’s 92nd, and has an average benchmark score nearly 2.4 times higher. If the task is OpenCL compute, the RTX 6000D is in a different league.

Who should pick the RTX 6000D? Anyone whose work scales with FP32 throughput, memory bandwidth, or VRAM capacity. The card delivers 97.04 TFLOPS of FP32, 1.40 TB/s of bandwidth, and 84 GB of GDDR7 memory. It also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and its 3DMark Steel Nomad score of 3,522 indicates strong modern DX12 rendering capability. For large-model inference, rendering, or simulation workloads that fit within 84 GB, this card is the data-backed choice.

Who should pick the Radeon PRO W6600? The data supports it only for scenarios where power, size, or system integration constraints dominate. It draws 100 W versus 600 W, fits in a single slot versus dual slot, and requires a 300 W PSU versus 1000 W. It is also end-of-life, while the RTX 6000D is active. If a system cannot physically or electrically accommodate the NVIDIA card, the W6600 remains a reasonable fallback, but on pure performance metrics, it loses every recorded comparison.

There is no benchmark in the database where the W6600 wins. The verdict is therefore one-sided: the RTX 6000D is the superior compute card, and the W6600 is only preferable for low-power, compact, or legacy-compatibility reasons.

Architecture Differences

The two cards come from fundamentally different GPU architectures. The RTX 6000D uses NVIDIA’s Blackwell 2.0 architecture, built on a 5 nm process at TSMC. The chip is designated GB202, with 92,200 million transistors on a 750 mm² die, yielding a transistor density of 122.9 million per mm². The Radeon PRO W6600 uses AMD’s RDNA 2.0 architecture, fabricated on TSMC’s 7 nm process. Its chip is Navi 23, with 11,060 million transistors on a 237 mm² die, for a density of 46.7 million per mm².

The transistor density difference is stark: NVIDIA packs roughly 2.6 times more transistors per square millimeter. That density translates into massive compute resources. The RTX 6000D has 19,968 shading units, 624 TMUs, 192 ROPs, 156 RT cores, and 624 tensor cores. The W6600 has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, with no tensor cores at all. The RTX 6000D has 11 times the shading units and 5.6 times the RT cores.

Memory architecture also diverges completely. The RTX 6000D uses 84 GB of GDDR7 on a 448-bit bus, achieving 1.40 TB/s bandwidth. The W6600 uses 8 GB of GDDR6 on a 128-bit bus, for 224.0 GB/s. That is a 6.25x bandwidth advantage for NVIDIA. The RTX 6000D’s memory clock is 1560 MHz (25 Gbps effective), while the W6600 runs at 1750 MHz (14 Gbps effective). The NVIDIA card’s raw bus width is the dominant factor.

Compute rates follow the same pattern. The RTX 6000D delivers 97.04 TFLOPS of FP32 and the same 97.04 TFLOPS of FP16 (1:1 ratio). The W6600 delivers 9.247 TFLOPS of FP32 and 18.49 TFLOPS of FP16 (2:1 ratio). NVIDIA’s FP32 throughput is 10.5 times higher. Pixel fill rate is 466.6 GPixel/s versus 165.1 GPixel/s, and texture rate is 1,516.3 GTexel/s versus 289.0 GTexel/s.

The API support is identical on paper: both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. But the hardware behind those APIs is vastly different. The RTX 6000D’s 156 RT cores and 624 tensor cores give it dedicated ray tracing and AI acceleration hardware, while the W6600 has only 28 RT cores and no tensor cores. For any machine learning or ray-traced workload, the NVIDIA card has hardware that AMD lacks entirely.

Specification Differences

The two cards differ on nearly every measurable specification. Process node: 5 nm versus 7 nm. Transistors: 92,200 million versus 11,060 million. Die size: 750 mm² versus 237 mm². Base clock: 1992 MHz versus 2331 MHz. Boost clock: 2430 MHz versus 2580 MHz. The AMD card actually has higher clocks, but that advantage is irrelevant given the 11x shading unit deficit.

Memory size: 84 GB versus 8 GB. Memory type: GDDR7 versus GDDR6. Bus width: 448-bit versus 128-bit. Bandwidth: 1.40 TB/s versus 224.0 GB/s. Shading units: 19,968 versus 1,792. TMUs: 624 versus 112. ROPs: 192 versus 64. RT cores: 156 versus 28. Tensor cores: 624 versus none. FP32: 97.04 TFLOPS versus 9.247 TFLOPS. FP16: 97.04 TFLOPS versus 18.49 TFLOPS. Pixel rate: 466.6 GPixel/s versus 165.1 GPixel/s. Texture rate: 1,516.3 GTexel/s versus 289.0 GTexel/s.

TDP: 600 W versus 100 W. Slot width: dual-slot versus single-slot. Power connectors: 1x 16-pin versus 1x 6-pin. Suggested PSU: 1000 W versus 300 W. Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x8. Display outputs: 4x DisplayPort 2.1b versus 4x DisplayPort 1.4a. Dimensions: 304 mm length versus 241 mm length. Release date: 2025-07-13 versus 2021-06-07. Production status: Active versus End-of-life.

The launch MSRP for the RTX 6000D is 8,565 USD, and for the W6600 it is 649 USD. The predecessor names also differ: RTX 6000D follows “Workstation Ada,” while W6600 follows “Radeon Pro Vega.” Neither card has a recorded successor.

FAQ

Q: Which card wins the only shared benchmark?

A: The NVIDIA RTX 6000D wins Geekbench OpenCL with a score of 388,405 versus the AMD Radeon PRO W6600’s 73,514, a delta of 428.3%.

Q: What is the average benchmark score for each card?

A: The RTX 6000D has an average benchmark score of 195,964, while the W6600 has an average of 81,995. The RTX 6000D’s average is 2.39 times higher.

Q: How much memory and bandwidth does each card have?

A: The RTX 6000D has 84 GB of GDDR7 on a 448-bit bus with 1.40 TB/s bandwidth. The W6600 has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: Do both cards support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the RTX 6000D has 156 RT cores and 624 tensor cores, while the W6600 has 28 RT cores and no tensor cores.

Q: What is the power draw difference?

A: The RTX 6000D has a TDP of 600 W and requires a 1000 W PSU, while the W6600 has a TDP of 100 W and requires a 300 W PSU.

Q: Are these cards currently in production?

A: The RTX 6000D is marked Active, with a release date of 2025-07-13. The W6600 is End-of-life, with a release date of 2021-06-07.

Where Each One Wins

The RTX 6000D wins every recorded benchmark comparison, but the use cases extend beyond the single head-to-head test. Its 97.04 TFLOPS of FP32 and FP16 (1:1) make it suited for scientific computing, AI inference, and any workload that saturates tensor cores. The 84 GB VRAM and 1.40 TB/s bandwidth support large datasets, high-resolution rendering, and multi-model inference that would exhaust the W6600’s 8 GB instantly. The 3DMark Steel Nomad DX12 score of 3,522 indicates strong modern DirectX 12 rendering, and the 98th percentile ranking places it among the top accelerators in the database.

The W6600 wins on efficiency and physical footprint. Its 100 W TDP means it can be powered by a 300 W PSU, and its single-slot design fits in space-constrained systems. The higher base and boost clocks (2331 MHz and 2580 MHz) do not translate into compute wins, but they reduce latency for lightly threaded tasks. The 92nd percentile ranking is respectable for a mid-range card, and its nearest rivals (Pro Vega 64X, RTX 5090, Tesla P100 variants) are all within 3.3% of its average score, meaning it is competitive within its own class.

For a workstation that needs to run OpenCL compute, the choice is clear: the RTX 6000D is 428.3% faster in that exact test. For a system that cannot accommodate a 600 W dual-slot card, the W6600 remains a functional option, but the database shows no scenario where it outperforms the RTX 6000D. The RTX 6000D is the benchmark leader; the W6600 is the low-power alternative.