AMD Radeon Pro W6600M vs NVIDIA Quadro RTX 6000 Comparison

The NVIDIA Quadro RTX 6000 and the AMD Radeon Pro W6600M represent two very different approaches to professional graphics, and the recorded benchmark data shows a decisive performance gap between them. Across the two head-to-head tests in the database, the NVIDIA Quadro RTX 6000 wins both, posting a 32.1% lead in OpenCL and a substantially larger 91.5% lead in Vulkan. The average benchmark scores reinforce this hierarchy: the Quadro RTX 6000 sits at 101,872, while the Radeon Pro W6600M trails at 61,896. This places the NVIDIA part in the 94th percentile of all GPUs, whereas the AMD part lands in the 89th percentile, a difference that reflects its position as a mobile-oriented solution rather than a full-power desktop workstation card.

Head-to-Head Benchmarks

The most striking result in the head-to-head comparison is the Vulkan test. The NVIDIA Quadro RTX 6000 scores 129,564, while the AMD Radeon Pro W6600M scores 67,652, giving the NVIDIA card a 91.5% advantage. This is not a marginal win; it is a near-doubling of performance. Vulkan workloads, which often stress geometry throughput and draw-call processing, clearly favor the larger TU102 chip with its 4,608 shading units and 288 texture mapping units. The recorded data shows that the NVIDIA card’s pixel rate of 169.9 GPixel/s and texture rate of 509.8 GTexel/s are both far above the AMD card’s 130.2 GPixel/s and 227.8 GTexel/s, which explains why the Vulkan gap is so wide.

In the OpenCL test, the NVIDIA Quadro RTX 6000 again wins, but by a smaller margin. The NVIDIA score is 74,179, compared to the AMD score of 56,140, a 32.1% difference. OpenCL benchmarks often reflect raw compute throughput, and the FP32 figures align with this result. The Quadro RTX 6000 delivers 16.31 TFLOPS of FP32 performance, while the Radeon Pro W6600M delivers 7.290 TFLOPS, which is less than half. That 32.1% lead in the actual benchmark is narrower than the theoretical FP32 gap would suggest, indicating that the AMD card’s higher boost clock (2,034 MHz versus 1,770 MHz) helps it close some of the distance in certain workloads. Still, the NVIDIA card wins outright.

Looking at the nearest rivals in the database provides additional context. The Quadro RTX 6000’s average score of 101,872 places it 4.5% ahead of the AMD Radeon RX 7900M and 4.9% ahead of the AMD Radeon Pro VII. However, it trails the AMD Radeon Pro Vega II Duo by 4.6% and the AMD Radeon Pro W6600X by 5.1%. This shows that while the Quadro RTX 6000 is a strong performer, it is not at the absolute top of the workstation stack; there are AMD cards with higher average scores. Conversely, the Radeon Pro W6600M’s average of 61,896 is nearly identical to the AMD Radeon 8050S, which sits just 0.3% higher, and it is 2.6% ahead of both the NVIDIA GeForce RTX 4090 and the Intel Arc Pro A60. The AMD card’s position among its rivals is tight, but it is clearly a mid-range performer compared to the high-end Quadro.

Architecture Differences

The architectural divide between these two cards is fundamental. The NVIDIA Quadro RTX 6000 uses the TU102 chip built on Turing architecture, manufactured by TSMC on a 12 nm process. The die is massive at 754 mm², housing 18,600 million transistors. This translates to a transistor density of 24.7 million per square millimeter. The AMD Radeon Pro W6600M, in contrast, uses the Navi 23 chip based on RDNA 2.0, also from TSMC but on a newer 7 nm process. The die is only 237 mm², with 11,060 million transistors, yielding a much higher density of 46.7 million per square millimeter. This process advantage allows AMD to pack a respectable amount of compute into a much smaller and power-efficient package.

Core configuration differences are stark. The NVIDIA card features 4,608 shading units, 288 TMUs, and 96 ROPs. It also includes 72 RT cores and 576 tensor cores, making it a full Turing implementation with dedicated hardware for ray tracing and AI workloads. The AMD card has 1,792 shading units, 112 TMUs, and 64 ROPs, along with 28 RT cores and no tensor cores at all. The lack of tensor cores is a significant architectural difference, as it means the AMD card cannot accelerate AI inference tasks in the same way. The shading unit count alone gives the NVIDIA card a 2.57x advantage in raw shader throughput, which is reflected in the FP32 performance figures.

Memory architecture also diverges sharply. The Quadro RTX 6000 comes with 24 GB of GDDR6 memory on a 384-bit bus, providing 672.0 GB/s of bandwidth. The Radeon Pro W6600M has 8 GB of GDDR6 on a 128-bit bus, yielding just 224.0 GB/s. This is a threefold difference in bandwidth, which matters greatly for large datasets, high-resolution textures, and compute workloads that stream data. Both cards run their memory at 1,750 MHz with 14 Gbps effective speed, so the difference is purely a function of bus width and capacity. The NVIDIA card’s 24 GB capacity is also critical for workloads that exceed 8 GB, such as massive 3D scenes or large language model inference.

Clock speeds tell a different story. The AMD card has a base clock of 1,224 MHz and a boost clock of 2,034 MHz, which is significantly higher than the NVIDIA card’s 1,440 MHz base and 1,770 MHz boost. This higher boost clock helps the AMD card compensate for its smaller core count in some scenarios. Power consumption reflects the architectural choices: the Quadro RTX 6000 has a TDP of 260 W, requiring a dual-slot cooler and both a 6-pin and 8-pin power connector. The Radeon Pro W6600M is an IGP (integrated graphics processor) with a TDP of just 90 W and no power connectors, designed for portable devices where power draw is a constraint. The NVIDIA card requires a 600 W suggested PSU, while the AMD card has no such recommendation listed.

Where Each One Wins

The benchmark results indicate that the NVIDIA Quadro RTX 6000 wins every measured test, so the use-case split is not about which card wins a given workload, but rather about which workloads each card can handle at all. The NVIDIA card’s 24 GB memory and 672.0 GB/s bandwidth make it suitable for large-scale rendering, scientific computation, and any task where memory capacity is the limiting factor. Its 576 tensor cores provide hardware acceleration for AI workflows, including training and inference, which the AMD card cannot match due to its lack of tensor cores. The 72 RT cores also give the NVIDIA card a clear edge in ray-traced rendering, a feature that is increasingly important in professional visualization.

The AMD Radeon Pro W6600M, despite losing both benchmarks, is not without merit. Its 90 W TDP and IGP form factor mean it can be deployed in thin and light mobile workstations where the Quadro RTX 6000 would be physically impossible to install. The higher boost clock of 2,034 MHz suggests that in short-duration workloads that are not memory-bound, the AMD card can punch above its weight. Its 7 nm process node also makes it more power-efficient per transistor, which is a consideration for battery life in portable systems. The Vulkan score of 67,652, while far behind the NVIDIA card, is still a usable level of performance for many professional applications.

For compute-heavy tasks that rely on FP32 throughput, the NVIDIA card’s 16.31 TFLOPS versus 7.290 TFLOPS is a decisive advantage. However, the AMD card’s FP16 performance of 14.58 TFLOPS (2:1) is noteworthy, suggesting that half-precision workloads could run reasonably well on the AMD card, though still below the NVIDIA card’s 32.62 TFLOPS. The practical takeaway is that the NVIDIA Quadro RTX 6000 is the clear choice for desktop workstations requiring maximum performance, while the AMD Radeon Pro W6600M is the only viable option here for ultra-portable or integrated systems, accepting a significant performance penalty.

FAQ

Q: Which card has a higher average benchmark score?

A: The NVIDIA Quadro RTX 6000 has an average benchmark score of 101,872, which is 64.6% higher than the AMD Radeon Pro W6600M’s average score of 61,896. The NVIDIA card also sits in the 94th percentile of all GPUs, compared to the 89th percentile for the AMD card.

Q: What is the largest performance gap between the two cards?

A: The largest gap is in the Geekbench Vulkan test, where the NVIDIA Quadro RTX 6000 scores 129,564 versus 67,652 for the AMD Radeon Pro W6600M, a 91.5% difference. This is more than double the OpenCL gap of 32.1%.

Q: How much memory does each card have, and does it matter?

A: The NVIDIA Quadro RTX 6000 has 24 GB of GDDR6 memory on a 384-bit bus with 672.0 GB/s bandwidth. The AMD Radeon Pro W6600M has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth. The NVIDIA card offers triple the bandwidth and three times the capacity, which is critical for large datasets.

Q: Can the AMD card be used in a desktop workstation?

A: The AMD Radeon Pro W6600M is classified as an IGP (integrated graphics processor) with a 90 W TDP and no power connectors, and its display outputs are listed as portable device dependent. It is designed for mobile systems, whereas the NVIDIA Quadro RTX 6000 is a dual-slot desktop card requiring a 600 W PSU.

Q: Which card has better ray tracing hardware?

A: The NVIDIA Quadro RTX 6000 includes 72 dedicated RT cores, while the AMD Radeon Pro W6600M has 28 RT cores. Both support DirectX 12 Ultimate (12_2), but the NVIDIA card has significantly more ray tracing hardware available.

Q: What is the difference in FP32 compute performance?

A: The NVIDIA Quadro RTX 6000 delivers 16.31 TFLOPS of FP32 performance, while the AMD Radeon Pro W6600M delivers 7.290 TFLOPS. The NVIDIA card also has higher FP16 performance at 32.62 TFLOPS versus 14.58 TFLOPS for the AMD card.

The Verdict

The data is unambiguous: the NVIDIA Quadro RTX 6000 is the superior performer in every recorded benchmark. Its 32.1% OpenCL lead and 91.5% Vulkan lead are backed by a larger core configuration, more memory, and higher bandwidth. For any user running professional workloads on a desktop workstation, the Quadro RTX 6000 is the correct choice based on performance alone. The 24 GB memory capacity and 576 tensor cores make it suitable for tasks that the AMD card simply cannot handle, such as large model AI inference or massive scene rendering.

The AMD Radeon Pro W6600M, however, serves a different purpose. Its 90 W TDP and IGP form factor mean it can be integrated into portable devices where the 260 W, 267 mm long NVIDIA card is physically impossible to use. The AMD card’s 7 nm process and higher boost clock of 2,034 MHz show that it is a capable performer within its power envelope, but the numbers show it is outclassed by the NVIDIA card in absolute terms. The recommendation is straightforward: pick the Quadro RTX 6000 if you need maximum performance and have a desktop chassis, or pick the Radeon Pro W6600M only if your system requires an integrated mobile solution and you can accept a 64.6% lower average benchmark score.

Specification Differences

The two cards differ across nearly every specification category. The NVIDIA Quadro RTX 6000 uses the TU102 chip on a 12 nm process with 18,600 million transistors and a 754 mm² die, while the AMD Radeon Pro W6600M uses the Navi 23 chip on a 7 nm process with 11,060 million transistors and a 237 mm² die. The NVIDIA card has 4,608 shading units, 288 TMUs, 96 ROPs, 72 RT cores, and 576 tensor cores. The AMD card has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, with no tensor cores. Memory differs significantly: the NVIDIA card has 24 GB GDDR6 on a 384-bit bus with 672.0 GB/s bandwidth, while the AMD card has 8 GB GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth. Clock speeds favor AMD: 1,224 MHz base and 2,034 MHz boost versus 1,440 MHz base and 1,770 MHz boost for NVIDIA. Power consumption is 260 W for NVIDIA versus 90 W for AMD, with the NVIDIA card requiring a dual-slot cooler, 1x 6-pin and 1x 8-pin power connectors, and a 600 W PSU, while the AMD card is an IGP with no power connectors. The bus interface is PCIe 3.0 x16 for NVIDIA versus PCIe 4.0 x16 for AMD. Display outputs are 4x DisplayPort 1.4a and 1x USB Type-C for NVIDIA, versus portable device dependent for AMD. The NVIDIA card launched on 2018-08-12 with a launch MSRP of 6,299 USD, while the AMD card launched on 2021-06-07 with no listed MSRP. Both are end-of-life, but the NVIDIA card’s predecessor is Quadro Volta and its successor is Workstation Ampere, while the AMD card’s predecessor is FirePro Mobile with no successor listed.