AMD Radeon Pro W6600M vs NVIDIA GeForce RTX 4080 Comparison

The AMD Radeon Pro W6600M and the NVIDIA GeForce RTX 4080 represent two very different approaches to mobile graphics, separated by a generation of architecture and a massive gulf in intended workload. The data in the benchmark results shows a decisive performance advantage for the NVIDIA part, but the AMD chip occupies a distinct niche in terms of power and form factor. This analysis breaks down the head-to-head results, architectural differences, and the specific use cases where each component has a clear rationale.

Head-to-Head Benchmarks

The head-to-head benchmark data provides only two direct comparison points, both of which are overwhelmingly won by the NVIDIA GeForce RTX 4080. In the Geekbench OpenCL test, the RTX 4080 scores 214,739 points, which is 73.9% higher than the AMD Radeon Pro W6600M's score of 56,140. This is a massive delta, indicating a fundamental difference in raw compute throughput that is consistent with the specifications outlined in the data.

The second direct comparison, Geekbench Vulkan, shows a similar pattern. The NVIDIA card scores 263,779 points, while the AMD card scores 67,652. The deltaPct here is -74.4%, meaning the RTX 4080 leads by that margin. This consistency across both OpenCL and Vulkan APIs suggests the NVIDIA architecture holds a generational advantage in general-purpose GPU compute that is not API-specific.

Looking at the broader benchmark context, the RTX 4080 has a much richer dataset. Its average benchmark score across all tests is 54,247, which places it at the 86th percentile of all GPUs. In contrast, the W6600M's average score of 61,896 is derived from just two tests, yet it still places it at the 89th percentile. This is a crucial point of interpretation: the AMD card's percentile is inflated because its average is based only on its two strong Geekbench results, while the NVIDIA card's average is dragged down by a wide range of tests, including low scores in PassMark DirectX 9 (370) and DirectX 10 (204) which are likely not representative of its modern workload capabilities.

The nearest rival data for each card further contextualizes their positions. The W6600M's average score of 61,896 is nearly identical to the AMD Radeon 8050S (62,108, a 0.3% difference) and slightly ahead of the NVIDIA GeForce RTX 4090 (60,347, a 2.6% advantage). This suggests that in the narrow set of tests the W6600M runs, it is competitive with top-tier desktop parts. Conversely, the RTX 4080's average score of 54,247 is virtually tied with the RTX 4080 SUPER (54,209, a 0.1% difference) and slightly behind the AMD Radeon Pro W5700X (54,828, a 1.1% disadvantage). The deltaPct values here are small, indicating that the RTX 4080's average is heavily influenced by its diverse test suite, which includes many low-scoring legacy DirectX tests that do not reflect its modern performance.

FAQ

Q: How much faster is the NVIDIA GeForce RTX 4080 than the AMD Radeon Pro W6600M in Geekbench OpenCL?

A: The RTX 4080 scores 214,739 compared to the W6600M's 56,140, a difference of 73.9% in favor of the NVIDIA card.

Q: Does the AMD card win any of the direct head-to-head benchmarks?

A: No. The data shows the RTX 4080 wins both of the shared tests (Geekbench OpenCL and Vulkan), with the W6600M recording zero wins out of the two comparisons.

Q: Which card has a higher percentile ranking among all GPUs?

A: The AMD Radeon Pro W6600M has a higher percentile rank at 89, compared to the RTX 4080's 86. However, this is based on a much smaller set of benchmark results for the AMD card.

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

A: The W6600M has an average score of 61,896, while the RTX 4080 has an average score of 54,247. The AMD card's average is higher, but this is heavily skewed by the limited number of tests in its dataset.

Q: How does the RTX 4080 compare to its closest rival, the RTX 4080 SUPER?

A: The RTX 4080's average score of 54,247 is just 0.1% lower than the RTX 4080 SUPER's 54,209, indicating they are statistically equivalent in the benchmark database.

Q: Is the AMD W6600M more similar in performance to a desktop RTX 4090 or to the RTX 4080?

A: In terms of average benchmark score, the W6600M (61,896) is 2.6% higher than the RTX 4090 (60,347), making it much closer to that card than to the RTX 4080, which has a significantly lower average score.

Architecture Differences

The architectural divide between these two GPUs is stark, starting with the manufacturing process. The AMD Radeon Pro W6600M is built on a 7 nm process at TSMC, while the NVIDIA GeForce RTX 4080 uses a 5 nm process, also at TSMC. This node advantage allows NVIDIA to pack far more transistors into a similar footprint. The RTX 4080 contains 45,900 million transistors on a 379 mm² die, yielding a density of 121.1M transistors per mm². In contrast, the W6600M has only 11,060 million transistors on a 237 mm² die, with a density of 46.7M per mm².

The core configurations are equally divergent. The RTX 4080 uses the AD103 chip based on the Ada Lovelace architecture, featuring 9,728 shading units, 304 texture mapping units (TMUs), and 112 raster operation units (ROPs). It also includes 76 RT cores and 304 tensor cores. The W6600M, based on the Navi 23 chip with RDNA 2.0 architecture, has only 1,792 shading units, 112 TMUs, and 64 ROPs, along with 28 RT cores and no tensor cores. This fundamental difference in compute unit counts directly explains the massive FP32 performance gap: the RTX 4080 delivers 48.74 TFLOPS, while the W6600M delivers just 7.290 TFLOPS.

Memory architecture further separates them. The RTX 4080 uses 16 GB of GDDR6X on a 256-bit bus, providing 716.8 GB/s of bandwidth. The W6600M has 8 GB of GDDR6 on a 128-bit bus, yielding 224.0 GB/s. The effective memory clock speeds are also different, with the NVIDIA card running at 22.4 Gbps effective and the AMD card at 14 Gbps effective. These specifications indicate the RTX 4080 is designed for high-resolution, high-texture workloads, while the W6600M is more constrained.

Feature sets also differ significantly. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the RTX 4080 includes tensor cores, which enable AI-accelerated features that the AMD card lacks entirely. The power delivery and physical design are also opposite extremes: the W6600M is an IGP (integrated graphics processor) with no power connectors and a 90 W TDP, making it suitable for thin-and-light mobile workstations. The RTX 4080 is a triple-slot card with a 1x 16-pin power connector and a 320 W TDP, requiring a 700 W suggested PSU.

The Verdict

The data is unambiguous regarding raw performance: the NVIDIA GeForce RTX 4080 is the superior choice for any workload where compute throughput is the primary constraint. Its 73.9% and 74.4% leads in OpenCL and Vulkan benchmarks, respectively, are decisive. The RTX 4080's architecture provides over six times the FP32 compute (48.74 vs 7.290 TFLOPS), over three times the memory bandwidth (716.8 vs 224.0 GB/s), and double the memory capacity (16 vs 8 GB). For professionals running rendering, simulation, or AI inference, the RTX 4080 is the only viable option based on this data.

However, the AMD Radeon Pro W6600M has its own rationale rooted in efficiency and form factor. Its 90 W TDP and IGP slot width mean it can be integrated into systems where a triple-slot, 320 W card is physically impossible. The benchmark data shows that, within its power envelope, it performs admirably; its average score of 61,896 is higher than the RTX 4080's 54,247, and it even edges out the desktop RTX 4090 by 2.6%. This suggests that for mobile workstations prioritizing battery life and portability, the W6600M offers a respectable level of performance that is competitive with desktop parts in specific tests.

The verdict hinges on the user's priorities. If the requirement is maximum compute performance in a stationary workstation, the RTX 4080 is the clear winner. If the requirement is a low-power, integrated GPU for a mobile platform, the W6600M serves a purpose that the RTX 4080 cannot fulfill due to its physical and power requirements.

Specification Differences

The two GPUs differ in nearly every measurable specification. The process node differs (7 nm for AMD vs 5 nm for NVIDIA), as does the transistor count (11,060 million vs 45,900 million) and die size (237 mm² vs 379 mm²). Clock speeds are higher on the NVIDIA card, with a base clock of 2205 MHz and boost of 2505 MHz, compared to the AMD's 1224 MHz base and 2034 MHz boost.

Memory specs are substantially different: the RTX 4080 has 16 GB of GDDR6X on a 256-bit bus with 716.8 GB/s bandwidth, while the W6600M has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s. The RTX 4080 has 9,728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores; the W6600M has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, with no tensor cores.

Pixel and texture rates reflect the core count differences, with NVIDIA hitting 280.6 GPixel/s and 761.5 GTexel/s, versus AMD's 130.2 GPixel/s and 227.8 GTexel/s. Power consumption is a major differentiator: 320 W for NVIDIA vs 90 W for AMD. The physical design differs from triple-slot (NVIDIA) to IGP (AMD), and power connectors range from 1x 16-pin to none. Display outputs are also different, with the RTX 4080 offering 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the W6600M is portable-device-dependent.

Where Each One Wins

The NVIDIA GeForce RTX 4080 wins in every scenario that demands maximum computational power. Its 48.74 TFLOPS FP32 performance and 716.8 GB/s bandwidth make it ideal for heavy 3D rendering, real-time ray tracing, and high-resolution video editing. The inclusion of tensor cores further extends its advantage to AI-accelerated workloads, such as deep learning inference or DLSS-based rendering, which the AMD card cannot perform with dedicated hardware. The 16 GB memory capacity is also a win for large datasets and textures.

The AMD Radeon Pro W6600M wins in scenarios constrained by power and space. Its 90 W TDP and IGP form factor allow it to be deployed in laptops where the 320 W, triple-slot RTX 4080 would be impractical. For mobile professionals who need a capable GPU for CAD, light rendering, or general compute tasks, the W6600M provides a balance of performance and efficiency. The data shows it holds its own against desktop cards in Geekbench tests, meaning users are not sacrificing all performance for portability. Its lack of tensor cores is a limitation, but for standard graphics workloads, it remains a relevant option.