AMD Radeon Pro W6600M vs AMD Radeon RX 6650M Comparison

AMD Radeon RX 6650M and AMD Radeon Pro W6600M are two mobile GPUs built on the same fundamental architecture, yet they target different priorities. The benchmark data shows a clear performance hierarchy between them, with the RX 6650M taking a decisive lead in both tested workloads. This analysis breaks down the numbers, the architectural similarities and differences, and what each card is best suited for based strictly on the provided facts.

Head-to-Head Benchmarks

The head-to-head results are unambiguous, with the AMD Radeon RX 6650M winning both benchmark tests. In the Geekbench OpenCL test, the RX 6650M scores 65,800 points against the Pro W6600M’s 56,140 points. That is a 17.2% advantage for the RX 6650M, a significant margin that indicates a substantial raw compute performance lead. This is not a marginal win; it is a clear generational and clock-speed gap manifesting in real-world compute workloads.

The Geekbench Vulkan test tells a similar story, though with a slightly narrower gap. The RX 6650M scores 77,735 points, while the Pro W6600M trails at 67,652 points. This represents a 14.9% delta in favor of the RX 6650M. Vulkan is often more efficient at extracting performance from hardware, so the fact that the RX 6650M still maintains a double-digit percentage lead suggests its advantage is rooted in raw throughput rather than API-specific optimizations.

Looking at the average benchmark scores, the pattern holds. The RX 6650M averages 71,768 points, placing it in the 91st percentile of all GPUs. The Pro W6600M averages 61,896 points, which sits in the 89th percentile. While both are high-performing parts, the 9,872-point gap in average scores is substantial. The RX 6650M’s nearest rival is the NVIDIA TITAN X Pascal, which scores 72,098, a delta of just -0.5%. The Pro W6600M, in contrast, sits near the AMD Radeon 8050S, which scores 62,108, a mere -0.3% difference. These rival comparisons show that the RX 6650M is competing in a higher performance tier than the Pro W6600M.

Architecture Differences

Both GPUs share the same underlying silicon: the Navi 23 chip built on TSMC’s 7 nm process node. They both pack 11,060 million transistors on a 237 mm² die, giving a transistor density of 46.7 million per square millimeter. The architecture is identical — RDNA 2.0 — and both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The core configurations are also identical. Both have 1,792 shading units, 112 texture mapping units, 64 raster operation units, and 28 ray tracing cores. Memory is the same: 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s of bandwidth. This means the raw hardware resources are the same; the differences come down to how they are clocked and power-managed.

The critical divergence is in clock speeds and power. The RX 6650M has a base clock of 2068 MHz and a boost clock of 2416 MHz, with a game clock of 2222 MHz. The Pro W6600M, by contrast, has a base clock of just 1224 MHz and a boost clock of 2034 MHz. This is a massive difference in base clock — over 800 MHz — which explains a large portion of the performance gap. The RX 6650M also has a higher thermal design power (TDP) of 120 W, compared to the Pro W6600M’s 90 W. This extra 30 W of power budget allows the RX 6650M to sustain higher clocks under load.

The memory clock is identical at 1750 MHz (14 Gbps effective), so memory bandwidth is not a differentiating factor. The bus interface differs: the RX 6650M uses PCIe 4.0 x8, while the Pro W6600M uses PCIe 4.0 x16. This is a notable difference for data transfer, though the benchmark results suggest it does not heavily impact the tested compute workloads.

Where Each One Wins

The AMD Radeon RX 6650M is the clear winner in compute performance across the board. It wins both the OpenCL and Vulkan benchmarks by 17.2% and 14.9%, respectively. This makes it the superior choice for any workload that relies on raw GPU compute, whether that is gaming, rendering, or general-purpose parallel processing. Its higher clock speeds and 120 W TDP give it a significant throughput advantage. The data indicates it is roughly 2% faster than the NVIDIA TITAN X Pascal and 1.3% faster than the AMD Radeon RX 6600 LE, placing it in strong company.

The AMD Radeon Pro W6600M, while behind in raw performance, is not without its merits. Its 90 W TDP means it consumes less power, which is a critical factor in mobile workstations where battery life and thermal management are priorities. The data shows it is competitive with the AMD Radeon 8050S, trailing by just 0.3%, and it actually leads the NVIDIA GeForce RTX 4090 by 2.6% and the Intel Arc Pro A60 by 2.6% in average score. This suggests the Pro W6600M is a well-optimized part for its power class. Its PCIe 4.0 x16 interface provides double the bus bandwidth of the RX 6650M’s x8 link, which could benefit certain professional applications that transfer large datasets to and from system memory.

The Verdict

Based strictly on the benchmark data, the AMD Radeon RX 6650M is the faster GPU. If your priority is maximum compute performance and you have the power budget to accommodate it, the RX 6650M is the clear choice. It delivers a 17.2% lead in OpenCL and a 14.9% lead in Vulkan, and it sits in the 91st percentile of all GPUs. It is an end-of-life product released in early 2022, but its performance remains highly competitive.

The AMD Radeon Pro W6600M is for a different user. If you are building a mobile workstation where power efficiency is paramount, the 90 W TDP is a significant advantage. It is 25% more power-efficient in terms of TDP (90 W vs. 120 W) while delivering 86% of the FP32 performance (7.290 TFLOPS vs. 8.659 TFLOPS). This part, released in mid-2021, is also end-of-life. The data does not show it winning any performance tests, but its lower power draw and wider PCIe bus make it a sensible choice for professional mobile environments where sustained battery operation and thermal stability are more important than peak frame rates.

FAQ

Q: Which GPU is faster in OpenCL compute?

A: The AMD Radeon RX 6650M is faster, scoring 65,800 compared to the Pro W6600M’s 56,140, a 17.2% advantage.

Q: How do the two cards compare in Vulkan performance?

A: The RX 6650M leads with 77,735 points versus 67,652 points for the Pro W6600M, a 14.9% delta.

Q: Do both cards have the same amount of memory?

A: Yes, both have 8 GB of GDDR6 memory on a 128-bit bus, with identical 224.0 GB/s bandwidth.

Q: What is the TDP difference between the two?

A: The RX 6650M has a 120 W TDP, while the Pro W6600M has a 90 W TDP.

Q: Are the core configurations the same?

A: Yes, both have 1,792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores.

Q: Which card has a higher boost clock?

A: The RX 6650M has a boost clock of 2416 MHz, while the Pro W6600M boosts to 2034 MHz.

Specification Differences

| Specification | AMD Radeon RX 6650M | AMD Radeon Pro W6600M |

| :--- | :--- | :--- |

| Generation | Navi Mobile (RX 6000M) | Radeon Pro Mobile (W6x00M) |

| Base Clock | 2068 MHz | 1224 MHz |

| Boost Clock | 2416 MHz | 2034 MHz |

| Game Clock | 2222 MHz | — |

| Pixel Rate | 154.6 GPixel/s | 130.2 GPixel/s |

| Texture Rate | 270.6 GTexel/s | 227.8 GTexel/s |

| FP32 Performance | 8.659 TFLOPS | 7.290 TFLOPS |

| FP16 Performance | 17.32 TFLOPS (2:1) | 14.58 TFLOPS (2:1) |

| TDP | 120 W | 90 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Release Date | 2022-01-03 | 2021-06-07 |

| Predecessor | Polaris Mobile | FirePro Mobile |

| Geekbench OpenCL | 65,800 | 56,140 |

| Geekbench Vulkan | 77,735 | 67,652 |