AMD Radeon Pro W6600M vs AMD Radeon RX 6550M Comparison

Where Each One Wins

The benchmark data splits cleanly along workload types. The AMD Radeon Pro W6600M wins both recorded tests, but the margin and the context behind those wins reveal different design personalities. In Geekbench OpenCL, the Pro W6600M scores 56140 against 42536 for the RX 6550M, a 32% advantage. In Geekbench Vulkan, the gap widens slightly to 33%, with the Pro card at 67652 and the RX card at 50867. So on raw compute throughput, the professional mobile part is consistently ahead.

However, the RX 6550M is not without its own territory. Its architecture is built around a much higher clock strategy. The base clock sits at 2000 MHz, the game clock at 2560 MHz, and the boost reaches 2840 MHz. The Pro W6600M, by contrast, runs a 1224 MHz base and a 2034 MHz boost. That clock advantage suggests the RX 6550M is tuned for bursty, latency-sensitive workloads where frequency matters more than raw shader count. The data shows the RX 6550M also draws less power, 80 W versus 90 W, which makes it a fit for thinner chassis where thermal headroom is limited.

The RX 6550M is the newer part, released in January 2023, while the Pro W6600M dates to June 2021. It is also an active product, whereas the Pro card is end-of-life. For buyers looking at current availability and driver support longevity, the RX 6550M holds the practical edge. The Pro W6600M belongs to the Radeon Pro Mobile W6x00M generation, a line aimed at professional validation, while the RX 6550M is part of the Radeon RX 6000 series, a mainstream gaming and consumer mobile lineup.

Architecture Differences

Both GPUs use RDNA 2.0 architecture from AMD, but they are built on different nodes and different dies. The Pro W6600M uses the Navi 23 chip on a 7 nm TSMC process, with 11,060 million transistors on a 237 mm² die. The RX 6550M uses Navi 24 on a 6 nm TSMC process, with 5,400 million transistors on a 107 mm² die. The transistor density tells the story: the RX 6550M packs 50.5 million transistors per mm², while the Pro W6600M has 46.7 million per mm². The newer node gives the RX part a density advantage despite having roughly half the total transistor count.

The compute configuration differs substantially. The Pro W6600M has 1792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. The RX 6550M has 1024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. That is a 75% advantage in shading units and TMUs for the Pro card, and a 100% advantage in ROPs. The Pro W6600M also leads in pixel rate at 130.2 GPixel/s versus 90.88 GPixel/s, and in texture rate at 227.8 GTexel/s versus 181.8 GTexel/s.

Memory is another major divider. The Pro W6600M carries 8 GB of GDDR6 on a 128 bit bus, delivering 224.0 GB/s of bandwidth. The RX 6550M has 4 GB of GDDR6 on a 64 bit bus, with 144.0 GB/s. The Pro card has double the capacity and 55.6% more bandwidth. The RX 6550M compensates with faster memory clocks, 2250 MHz (18 Gbps effective) versus 1750 MHz (14 Gbps effective), but the narrower bus caps its throughput.

The bus interface also differs: the Pro W6600M uses PCIe 4.0 x16, while the RX 6550M uses PCIe 4.0 x4. That matters for bandwidth to the host, though both are mobile parts with portable device dependent display outputs. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores field in the data.

Head-to-Head Benchmarks

The Geekbench OpenCL result is the first clear signal. The Pro W6600M scores 56140, the RX 6550M scores 42536. That is a 32% delta in favor of the Pro card. OpenCL workloads tend to scale with shader count and memory bandwidth, and the Pro W6600M has both in larger measure. The 1792 shading units against 1024, plus 224.0 GB/s against 144.0 GB/s, explains much of the distance.

The Geekbench Vulkan test shows a similar pattern with a slightly larger gap. The Pro W6600M hits 67652, the RX 6550M reaches 50867, a 33% delta. Vulkan is a lower overhead API that can expose architectural efficiency differences. The RX 6550M's higher clocks, up to 2840 MHz boost, narrow what would otherwise be a wider chasm given the compute unit disparity, but they do not close it.

The average benchmark scores reinforce this. The Pro W6600M averages 61896 across its benchmark results, placing it in the 89th percentile of all GPUs in the database. The RX 6550M averages 46702, sitting in the 85th percentile. The Pro card's nearest rivals include the AMD Radeon 8050S at 62108 (0.3% behind), the NVIDIA GeForce RTX 4090 at 60347 (2.6% behind), and the Intel Arc Pro A60 at 60326 (2.6% behind). The RX 6550M's nearest rivals are the Intel Arc A530M at 46614 (0.2% ahead), the AMD Radeon RX 5600M at 46601 (0.2% ahead), and the NVIDIA RTX A2000 at 46043 (1.4% behind).

The data shows the Pro W6600M competes in a higher performance tier entirely. Its nearest rivals are all within a few percent, but they are all above the RX 6550M's entire competitive neighborhood. The RX 6550M trades blows with midrange parts from a few generations back, while the Pro W6600M sits near the RTX 4090 in aggregate score, which is notable for a mobile professional GPU.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro W6600M, with an average benchmark score of 61896, versus 46702 for the RX 6550M. The Pro card sits in the 89th percentile of all GPUs, while the RX 6550M sits in the 85th.

Q: How much faster is the Pro W6600M in Vulkan?

A: The Pro W6600M scores 67652 in Geekbench Vulkan, 33% ahead of the RX 6550M's 50867.

Q: Does the RX 6550M have any clock speed advantage?

A: Yes, significantly. The RX 6550M has a 2000 MHz base clock, 2560 MHz game clock, and 2840 MHz boost clock. The Pro W6600M has a 1224 MHz base and 2034 MHz boost.

Q: What is the memory capacity difference?

A: The Pro W6600M has 8 GB of GDDR6 on a 128 bit bus with 224.0 GB/s bandwidth. The RX 6550M has 4 GB of GDDR6 on a 64 bit bus with 144.0 GB/s bandwidth.

Q: Are both GPUs on the same manufacturing process?

A: No. The Pro W6600M uses a 7 nm TSMC process, while the RX 6550M uses a 6 nm TSMC process. The RX part has a higher transistor density at 50.5M per mm² versus 46.7M per mm².

Q: Which GPU is still in production?

A: The RX 6550M is listed as active and was released in January 2023. The Pro W6600M is end-of-life and was released in June 2021.

The Verdict

The AMD Radeon Pro W6600M is the stronger performer in every measured benchmark. It wins both Geekbench OpenCL and Vulkan with 32% and 33% leads respectively, carries double the memory capacity, more than half again the bandwidth, and a wider bus, more shading units across the board, and a higher aggregate score by a margin of 15194 points. For workloads that stress compute, memory bandwidth, or both, the data points squarely at the Pro W6600M.

The RX 6550M makes sense only in contexts the benchmark scores do not capture directly. It is the newer part, the active product, and it consumes less power at 80 W versus 90 W. Its 6 nm node and higher clocks suggest it is a more modern design that trades raw throughput for efficiency and frequency. The PCIe 4.0 x4 interface also indicates it is intended for lighter mobile implementations, while the Pro W6600M's x16 interface suggests a more fully featured notebook implementation.

The database places the Pro W6600M in the 89th percentile and the RX 6550M in the 85th. That four point gap is meaningful, but the real story is the competitive set each card draws. The Pro W6600M trades with the RTX 4090, the Radeon 8050S, and the Arc Pro A60. The RX 6550M trades with the Arc A530M, the RX 5600M, and the RTX A2000. Those are different leagues entirely.

A buyer who needs maximum mobile compute, especially for professional workloads, should pick the Pro W6600M without hesitation. A buyer who needs a current, efficient part for lighter duties and newer driver pipelines, or who prioritizes clock speed per watt, can justify the RX 6550M. The data does not support claiming the RX 6550M as equal to the Pro card in any direct comparison. It simply occupies a different role with its own merits, just at a lower performance tier.

Specification Differences

The two AMD GPUs differ in nearly every major specification field. The Pro W6600M uses the Navi 23 chip on a 7 nm TSMC process with 11,060 million transistors and a 237 mm² die size, while the RX 6550M uses Navi 24 on a 6 nm TSMC process with 5,400 million transistors and a 107 mm² die size, giving transistor densities of 46.2 million per mm² and 50.5 million per mm² respectively. The Pro W6600M has 1792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores, while the RX 6550M has 1024 shading units, 64 TMUs, 32 ROPs, 16 ray tracing cores. Clocks differ substantially: the Pro W6600M runs 1224 MHz base and 2034 MHz boost, with 1750 MHz memory (14 Gbps effective and 224.0 GB/s bandwidth), while the RX 6550M has 2000 MHz base, 2560 MHz game clock and 2840 MHz boost, with 2250 MHz memory (18 Gbps effective and 144.0 GB/s bandwidth). Memory capacities differ, 8 GB GDDR6 on 128 bit bus for the Pro W6600M and 64 bit bus for the RX 6550M. Pixel rates, texture rates, and FP32 and FP16 TFLOPS values all differ as well, with the Pro W6600M at 130.2 GPixel/s and the RX 6550M at 90.88 GPixel/s, the Pro W6600M with 227.8 GTexel/s and the RX 6550M at 181.8 GTexel/s and 7.290 TFLOPS, 14.58 TFLOPS versus 5.816 TFLOPS, 11.63 TFLOPS respectively. TDP differs, 90 W versus 80 W. The bus interface differs, PCIe 4.0 x16 versus PCIe 4.0 x4. Display outputs are portable device dependent for both. The production statuses differ, end-of-life versus active, as do the release dates, June 2021 and January 2023, and the predecessors, FirePro Mobile and Polaris Mobile respectively.