AMD Radeon Pro W6600M vs AMD Radeon RX 7900M Comparison

Head-to-Head Benchmarks

The recorded data includes two direct benchmark comparisons between the AMD Radeon RX 7900M and the AMD Radeon Pro W6600M. In both instances, the RX 7900M emerges as the clear winner, with margins that are substantial enough to define the performance gap between these two mobile graphics solutions.

Starting with Geekbench OpenCL, the RX 7900M posts a score of 129,499, while the Pro W6600M manages 56,140. This represents a delta of 130.7% in favor of the RX 7900M. To put that into perspective, the RX 7900M is not merely faster; it more than doubles the raw compute output of the Pro W6600M in this workload. The OpenCL test is a general-purpose compute benchmark that exercises the GPU's ability to handle floating-point operations, memory access patterns, and parallel task execution. A 130.7% advantage indicates that the RX 7900M delivers over twice the compute throughput in this scenario.

The second comparison, Geekbench Vulkan, shows an even wider gap. The RX 7900M scores 158,760, while the Pro W6600M reaches 67,652. The delta here is 134.7%, meaning the RX 7900M performs at nearly 2.35 times the level of the Pro W6600M in this graphics API test. Vulkan is a low-level API that stresses the GPU's ability to handle draw calls, resource binding, and command buffer management efficiently. The larger delta in Vulkan compared to OpenCL suggests that the RX 7900M's architecture is particularly well-suited to modern, low-overhead rendering paths.

Looking at the broader database context, the RX 7900M's average benchmark score across all recorded tests is 97,487, placing it at the 94th percentile of all GPUs. The Pro W6600M's average score is 61,896, which sits at the 89th percentile. While both are high-performing parts, the RX 7900M's average score is roughly 57.5% higher than the Pro W6600M's average. This aligns with the head-to-head results, confirming that the RX 7900M is the superior performer in synthetic benchmarks.

Examining the nearest rivals further contextualizes these scores. The RX 7900M's average score of 97,487 is 0.4% above the AMD Radeon Pro VII (97,131) and 5.4% above the AMD Radeon Instinct MI60 (92,466). It trails the NVIDIA Quadro RTX 6000 (101,872) by 4.3% and the NVIDIA RTX A4500 (91,671) by 6.3% in the opposite direction. This places the RX 7900M in a competitive band with professional workstation cards from the previous generation, despite being a mobile part.

The Pro W6600M's nearest rivals tell a different story. Its average score of 61,896 is 0.3% below the AMD Radeon 8050S (62,108), 2.6% above the NVIDIA GeForce RTX 4090 (60,347), 2.6% above the Intel Arc Pro A60 (60,326), and 2.9% above the AMD Radeon Pro Vega 48 (60,140). Notably, the Pro W6600M outperforms a desktop GeForce RTX 4090 in this database's average score measure, which is unusual but reflects the specific benchmark mix used. The competition around the 61,000 to 62,000 score range is tight, with all four rivals within 3% of each other.

Where Each One Wins

The RX 7900M wins in every category where direct comparison data exists. It holds a 130.7% advantage in OpenCL compute and a 134.7% advantage in Vulkan graphics. The wins tally is 2 for the RX 7900M and 0 for the Pro W6600M in the head-to-head benchmarks. There are no recorded tests where the Pro W6600M outperforms the RX 7900M.

For compute-heavy workloads such as scientific simulation, machine learning inference, or video encoding that leverages OpenCL, the RX 7900M is the clear choice. Its FP32 performance of 38.52 TFLOPS versus 7.290 TFLOPS for the Pro W6600M represents a 5.3x raw compute advantage. Even accounting for architectural differences in how each GPU sustains peak clocks, the sheer throughput gap is decisive.

For gaming or real-time rendering workloads that use Vulkan, the RX 7900M's 134.7% lead in the Vulkan benchmark translates to substantially higher frame rates and smoother performance in modern titles. The Pro W6600M, while capable, operates at a fundamentally lower performance tier.

The Pro W6600M's only advantages are indirect. It consumes 90 W of power compared to the RX 7900M's 180 W, making it a more power-efficient option for thin-and-light mobile workstations. But the data shows no performance metric where that efficiency translates into a win. The RX 7900M is the winner in every recorded benchmark.

Architecture Differences

The two GPUs represent different generations of AMD's RDNA architecture. The RX 7900M is built on RDNA 3.0, code-named Plum Bonito, and uses the Navi 31 chip. The Pro W6600M is built on RDNA 2.0, part of the Radeon Pro Mobile (W6x00M) generation, using the Navi 23 chip.

The manufacturing process differs significantly. The RX 7900M uses a 5 nm process at TSMC, while the Pro W6600M uses a 7 nm process at the same foundry. This process advantage allows the RX 7900M to pack 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1 million per square millimeter. The Pro W6600M contains 11,060 million transistors on a 237 mm² die, with a density of 46.7 million per square millimeter. The RX 7900M has over 5x more transistors and more than double the die area.

The compute resources reflect this architectural gap. The RX 7900M features 4,608 shading units, 288 texture mapping units (TMUs), and 192 render output units (ROPs). It also includes 72 ray tracing cores. The Pro W6600M has 1,792 shading units, 112 TMUs, and 64 ROPs, with 28 ray tracing cores. The RX 7900M has 2.57x more shading units, 2.57x more TMUs, and 3x more ROPs.

Memory architecture differs as well. The RX 7900M uses 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The Pro W6600M has 8 GB of GDDR6 on a 128-bit bus, yielding 224.0 GB/s. The RX 7900M offers double the capacity and 2.57x the bandwidth.

Clock speeds also differ. The RX 7900M runs at a base clock of 1825 MHz and boosts to 2090 MHz. The Pro W6600M has a base of 1224 MHz and boosts to 2034 MHz. The RX 7900M's memory runs at 2250 MHz (18 Gbps effective), while the Pro W6600M's memory is at 1750 MHz (14 Gbps effective).

Pixel and texture rates reflect the combined effect of clocks and core counts. The RX 7900M achieves 401.3 GPixel/s and 601.9 GTexel/s, while the Pro W6600M produces 130.2 GPixel/s and 227.8 GTexel/s. The RX 7900M's pixel rate is 3.08x higher, and its texture rate is 2.64x higher.

Both GPUs support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores. Both use a PCIe 4.0 x16 bus interface. Both are integrated into mobile platforms (IGP slot width) with no power connectors and portable-device-dependent display outputs.

Specification Differences

The following table highlights only the fields where the two GPUs differ:

| Specification | AMD Radeon RX 7900M | AMD Radeon Pro W6600M |

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

| Architecture | RDNA 3.0 | RDNA 2.0 |

| Generation | Navi Mobile (RX 7000M) | Radeon Pro Mobile (W6x00M) |

| Process Node | 5 nm | 7 nm |

| Transistors | 57,700 million | 11,060 million |

| Die Size | 529 mm² | 237 mm² |

| Transistor Density | 109.1M / mm² | 46.7M / mm² |

| Base Clock | 1825 MHz | 1224 MHz |

| Boost Clock | 2090 MHz | 2034 MHz |

| Memory Clock | 2250 MHz (18 Gbps effective) | 1750 MHz (14 Gbps effective) |

| Memory Size | 16 GB | 8 GB |

| Memory Bus Width | 256 bit | 128 bit |

| Memory Bandwidth | 576.0 GB/s | 224.0 GB/s |

| Shading Units | 4608 | 1792 |

| TMUs | 288 | 112 |

| ROPs | 192 | 64 |

| Ray Tracing Cores | 72 | 28 |

| Pixel Rate | 401.3 GPixel/s | 130.2 GPixel/s |

| Texture Rate | 601.9 GTexel/s | 227.8 GTexel/s |

| FP32 Performance | 38.52 TFLOPS | 7.290 TFLOPS |

| FP16 Performance | 77.05 TFLOPS (2:1) | 14.58 TFLOPS (2:1) |

| TDP | 180 W | 90 W |

| Release Date | 2023-10-18 | 2021-06-07 |

| Production Status | Active | End-of-life |

| Predecessor | Polaris Mobile | FirePro Mobile |

The RX 7900M is a newer, larger, and more powerful part. The Pro W6600M is an older, smaller, and less capable chip that has reached end-of-life status.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7900M has an average benchmark score of 97,487, compared to 61,896 for the AMD Radeon Pro W6600M.

Q: What is the difference in Geekbench OpenCL performance?

A: The RX 7900M scores 129,499 in Geekbench OpenCL, while the Pro W6600M scores 56,140, giving the RX 7900M a 130.7% advantage.

Q: How much faster is the RX 7900M in Vulkan workloads?

A: In Geekbench Vulkan, the RX 7900M scores 158,760 versus 67,652 for the Pro W6600M, a delta of 134.7% in favor of the RX 7900M.

Q: What memory bandwidth does each GPU provide?

A: The RX 7900M offers 576.0 GB/s across a 256-bit bus with 16 GB of GDDR6. The Pro W6600M provides 224.0 GB/s across a 128-bit bus with 8 GB of GDDR6.

Q: Which GPU has more ray tracing cores?

A: The RX 7900M has 72 ray tracing cores, while the Pro W6600M has 28 ray tracing cores.

Q: What are the TDP values for these mobile GPUs?

A: The RX 7900M has a TDP of 180 W, and the Pro W6600M has a TDP of 90 W.

The Verdict

The data is unambiguous: the AMD Radeon RX 7900M outperforms the AMD Radeon Pro W6600M in every recorded benchmark. Its 130.7% lead in OpenCL and 134.7% lead in Vulkan make it the superior choice for any workload that benefits from raw GPU compute, including 3D rendering, machine learning inference, or high-refresh-rate gaming.

The RX 7900M's architectural advantages are substantial. It uses a newer 5 nm process, packs 57,700 million transistors, and delivers 38.52 TFLOPS of FP32 performance. Its 16 GB of memory on a 256-bit bus provides 576.0 GB/s of bandwidth, more than double the Pro W6600M's 224.0 GB/s. The 72 ray tracing cores versus 28 further solidify its position for ray-traced content.

The Pro W6600M is not without merit. Its 90 W TDP is half that of the RX 7900M, making it a better fit for systems where power draw and thermal output are critical constraints. It also holds the 89th percentile ranking among all GPUs, which is respectable. However, the database shows no performance test where it beats the RX 7900M. Its nearest rivals cluster around the 60,000 to 62,000 average score range, while the RX 7900M operates in the 92,000 to 102,000 range.

The Pro W6600M is end-of-life, while the RX 7900M is active. For users selecting a mobile GPU today, the RX 7900M is the clear choice based on performance metrics. For users constrained by power or thermal limits, the Pro W6600M offers a lower-power alternative, but it comes with a significant performance penalty that the benchmark data makes explicit. The RX 7900M is the winner in this comparison.