AMD Radeon Pro W6600M vs NVIDIA Quadro P6000 Comparison

Head-to-Head Benchmarks

The benchmark data delivers a clear, if not entirely lopsided, verdict. In the two head-to-head tests recorded, the NVIDIA Quadro P6000 wins both, but the margin of victory is far from uniform. The most decisive win comes in the Geekbench OpenCL test, where the Quadro P6000 scores 66,382 against the Radeon Pro W6600M's 56,140. That is an 18.2% delta—a substantial gap that speaks to raw compute throughput in a general-purpose workload.

The Vulkan test tells a different story in terms of competitive pressure. Here, the Quadro P6000 posts 73,590, while the Radeon Pro W6600M manages 67,652. The delta shrinks to 8.8%, suggesting that the AMD part is comparatively stronger in graphics-oriented or modern-API scenarios than it is in pure compute. This narrowing is worth investigating further, as it hints at architectural priorities that favor the RDNA 2.0 design in certain rendering paths.

Looking at the broader competitive landscape, the Quadro P6000's average benchmark score of 69,986 places it in the 90th percentile of all GPUs. Its nearest rivals include the AMD Radeon Pro WX 8200 at 69,870 (a 0.2% deficit for the P6000) and the NVIDIA RTX A3000 Mobile at 70,140 (a 0.2% lead for the rival). The P6000 also sits just 1.2% behind the AMD Radeon RX 6600 LE, which scores 70,829. These are tight margins, indicating that the P6000, despite its age, remains competitive with much newer silicon in synthetic benchmarks.

The Radeon Pro W6600M, by contrast, averages 61,896, landing in the 89th percentile. Its nearest rivals are a mixed bag: the AMD Radeon 8050S is essentially tied at 62,108 (a 0.3% delta in favor of the 8050S), while the NVIDIA GeForce RTX 4090 trails by 2.6% at 60,347. The Intel Arc Pro A60 also sits 2.6% behind, and the AMD Radeon Pro Vega 48 is 2.9% behind. This clustering suggests the W6600M is a solid mid-pack performer, but it does not threaten the P6000's overall average.

The head-to-head delta of 18.2% in OpenCL is significant because it represents a near-one-fifth performance advantage. In practical terms, that could translate to noticeably faster rendering times or simulation throughput in OpenCL-accelerated applications. The 8.8% Vulkan gap is more modest, and it raises the question of whether driver maturity or architecture-specific features could close that gap further in real-world gaming or Vulkan-based compute workloads.

Architecture Differences

The two GPUs come from fundamentally different design philosophies and eras. The NVIDIA Quadro P6000 is built on the Pascal architecture, fabricated on a 16 nm process at TSMC. It uses the GP102 chip, which packs 11,800 million transistors into a 471 mm² die, yielding a transistor density of 25.1 million per mm². This is a large, power-hungry desktop-class part designed for maximum throughput in professional workloads.

The AMD Radeon Pro W6600M, in contrast, is a mobile-first RDNA 2.0 part. It uses the Navi 23 chip, also built by TSMC but on a much more advanced 7 nm process. The die size drops to 237 mm², yet it still houses 11,060 million transistors—nearly the same count as the P6000. The transistor density more than doubles to 46.7 million per mm². This is a clear demonstration of process node advantages: AMD packs almost the same number of transistors into half the silicon area.

The memory subsystems diverge sharply. The P6000 features 24 GB of GDDR5X on a 384-bit bus, delivering 432.8 GB/s of bandwidth. The W6600M has 8 GB of GDDR6 on a 128-bit bus, yielding 224.0 GB/s. That is roughly half the bandwidth, which partially explains the OpenCL performance gap. However, the W6600M's memory runs at 14 Gbps effective, while the P6000's runs at 9 Gbps effective—the newer memory type mitigates some of the bus-width disadvantage.

Compute resources tell a tale of brute force versus efficiency. The P6000 has 3,840 shading units, 240 TMUs, and 96 ROPs. The W6600M has 1,792 shading units, 112 TMUs, and 64 ROPs. The P6000's raw shader count is more than double, which drives its FP32 output of 12.63 TFLOPS versus the W6600M's 7.290 TFLOPS. Yet the W6600M has a notable feature the P6000 lacks entirely: 28 ray tracing cores. This is a generational leap, as the P6000 predates hardware-accelerated ray tracing in NVIDIA's professional lineup.

Clock speeds also favor the AMD part in terms of boost behavior. The P6000 runs at 1506 MHz base and 1645 MHz boost. The W6600M starts lower at 1224 MHz base but boosts aggressively to 2034 MHz. That higher boost clock helps the RDNA 2.0 part close some of the per-clock efficiency gap, though it cannot overcome the sheer shader-count deficit.

Power and form factor differences are stark. The P6000 is a dual-slot card with a 250 W TDP and a single 8-pin power connector, requiring a 600 W power supply. It is 267 mm long and 111 mm tall. The W6600M is an IGP (integrated graphics processor) designed for mobile workstations, with a 90 W TDP and no power connectors. Its dimensions are listed as portable-device dependent. The P6000 uses PCIe 3.0 x16, while the W6600M uses PCIe 4.0 x16, doubling the potential bandwidth to the host system.

Where Each One Wins

The data points to a straightforward split: the Quadro P6000 wins in raw compute and memory capacity, while the W6600M wins on efficiency and modern feature support. The P6000's 18.2% OpenCL advantage suggests it is the better choice for compute-heavy tasks like simulation, scientific rendering, or machine learning inference that rely on OpenCL. Its 24 GB of memory is another clear edge—for datasets that exceed 8 GB, the W6600M simply cannot load them into VRAM, making the P6000 the only option between these two.

The W6600M's narrower 8.8% Vulkan deficit implies it is more competitive in graphics-oriented workloads. Vulkan is often used in game engines and real-time visualization, where the W6600M's ray tracing cores could provide features the P6000 lacks entirely. The W6600M also has a significantly lower TDP of 90 W versus 250 W, making it the only viable choice for mobile or compact systems where power and thermal budgets are constrained.

For professional users, the choice hinges on workload. If the task is dominated by OpenCL compute and large memory footprints, the P6000 is clearly superior. If the task is real-time rendering with ray tracing, or if the system must be a laptop, the W6600M is the functional choice despite its lower raw scores. The P6000's 90th percentile ranking versus the W6600M's 89th percentile shows they are close in overall standing, but the distribution of strengths is very different.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA Quadro P6000 scores 69,986 on average, while the AMD Radeon Pro W6600M scores 61,896. The P6000 also ranks one percentile higher, at 90th versus 89th.

Q: How much faster is the P6000 in OpenCL?

A: The P6000 scores 66,382 in Geekbench OpenCL, which is 18.2% higher than the W6600M's 56,140.

Q: Does the W6600M win any head-to-head benchmarks?

A: No. The data shows the P6000 wins both the OpenCL and Vulkan tests. The W6600M's best result is an 8.8% deficit in Vulkan.

Q: What memory advantages does the P6000 offer?

A: The P6000 has 24 GB of GDDR5X on a 384-bit bus with 432.8 GB/s bandwidth. The W6600M has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: Does the W6600M support ray tracing?

A: Yes, the W6600M has 28 ray tracing cores. The P6000 has no ray tracing cores listed in its specifications.

Q: Which GPU is more power-efficient?

A: The W6600M has a 90 W TDP and no power connectors, while the P6000 has a 250 W TDP and requires a 600 W power supply.

Specification Differences

| Specification | NVIDIA Quadro P6000 | AMD Radeon Pro W6600M |

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

| Architecture | Pascal | RDNA 2.0 |

| Process Node | 16 nm | 7 nm |

| Transistors | 11,800 million | 11,060 million |

| Die Size | 471 mm² | 237 mm² |

| Transistor Density | 25.1M / mm² | 46.7M / mm² |

| Base Clock | 1506 MHz | 1224 MHz |

| Boost Clock | 1645 MHz | 2034 MHz |

| Memory Clock | 1127 MHz / 9 Gbps effective | 1750 MHz / 14 Gbps effective |

| Memory Size | 24 GB | 8 GB |

| Memory Type | GDDR5X | GDDR6 |

| Memory Bus | 384 bit | 128 bit |

| Memory Bandwidth | 432.8 GB/s | 224.0 GB/s |

| Shading Units | 3840 | 1792 |

| TMUs | 240 | 112 |

| ROPs | 96 | 64 |

| Ray Tracing Cores | None | 28 |

| Pixel Rate | 157.9 GPixel/s | 130.2 GPixel/s |

| Texture Rate | 394.8 GTexel/s | 227.8 GTexel/s |

| FP32 | 12.63 TFLOPS | 7.290 TFLOPS |

| FP16 | 197.4 GFLOPS (1:64) | 14.58 TFLOPS (2:1) |

| TDP | 250 W | 90 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 8-pin | None |

| Suggested PSU | 600 W | Not specified |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 1x DVI, 4x DisplayPort 1.4a | Portable Device Dependent |

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

| OpenGL | 4.6 | 4.6 |

| Vulkan | 1.4 | 1.4 |

| Dimensions | 267 mm x 111 mm | Not specified |

| Release Date | 2016-09-30 | 2021-06-07 |

| Predecessor | Quadro Maxwell | FirePro Mobile |

| Successor | Quadro Volta | Not specified |

| Launch MSRP | 5,999 USD | Not specified |

The Verdict

The data makes a clear case for the NVIDIA Quadro P6000 as the stronger performer in synthetic benchmarks. It wins both head-to-head tests, holds a 13% higher average benchmark score, and offers triple the memory capacity. The 18.2% OpenCL lead is decisive for compute workloads. The P6000's 90th percentile ranking versus the W6600M's 89th confirms its standing as the higher-tier product.

However, the verdict is not a simple recommendation for every scenario. The W6600M's 90 W TDP makes it the only choice for mobile workstations or compact systems where the P6000's 250 W dual-slot design is physically or thermally impossible. The W6600M also brings hardware ray tracing, a feature the P6000 lacks entirely, which could be decisive for modern real-time rendering pipelines. Its FP16 performance of 14.58 TFLOPS is dramatically higher than the P6000's 197.4 GFLOPS, suggesting the AMD part is far better suited to workloads that leverage half-precision arithmetic.

For a desktop professional workstation focused on OpenCL compute, large datasets, and maximum raw throughput, the Quadro P6000 is the data-backed choice. For a mobile workstation, a ray-tracing workload, or an environment with strict power limits, the Radeon Pro W6600M is the only viable option despite its lower scores. The benchmark data does not declare a universal winner—it declares a workload-dependent one.