AMD Radeon Pro W6600M vs AMD Radeon RX Vega 64 Comparison

AMD Radeon Pro W6600M and AMD Radeon RX Vega 64 represent two very different generations of AMD graphics, and the benchmark data reflects a split decision. The recorded measurements show each card winning one of the two common tests, with the victory margins telling a clear story about their respective strengths. The Pro W6600M, built on RDNA 2.0, is a mobile-focused part with modern features, while the RX Vega 64 is a desktop flagship from the GCN era with a much larger silicon footprint. The data shows that raw compute throughput is not the only factor, as the newer architecture pulls ahead in one API while the older card dominates in another.

Head-to-Head Benchmarks

The two benchmark results in the database cover OpenCL and Vulkan workloads, and they could not be more different in outcome. In the Geekbench OpenCL test, the AMD Radeon RX Vega 64 scores 62552, while the AMD Radeon Pro W6600M scores 56140. That gives the Vega 64 a decisive 10.3% lead. This is a substantial margin, and it aligns with the raw specifications: the Vega 64 carries 4096 shading units and a 2048-bit memory bus, compared to 1792 shading units and a 128-bit bus on the Pro W6600M. The Vega 64 also delivers 12.66 TFLOPS of FP32 performance versus 7.290 TFLOPS for the Pro W6600M. In a pure compute scenario like OpenCL, the older card simply has more execution resources to throw at the workload.

However, the situation flips in the Geekbench Vulkan test, where the AMD Radeon Pro W6600M scores 67652 against the RX Vega 64's 67032. The Pro W6600M wins by a narrow 0.9%, a much smaller margin than the Vega 64's OpenCL victory. This is notable because the Pro W6600M is rated at just 90 W TDP, while the Vega 64 draws 295 W. The newer RDNA 2.0 architecture, with its 28 ray tracing cores and support for DirectX 12 Ultimate, likely explains the Vulkan advantage. The Vega 64 has no dedicated ray tracing hardware and only supports DirectX 12 (12_1), not the 12 Ultimate feature set. The Pro W6600M also runs at a higher boost clock of 2034 MHz versus 1546 MHz on the Vega 64, which helps in API-level efficiency despite fewer shading units.

When looking at the average benchmark scores across all recorded tests, the picture becomes more complicated. The AMD Radeon RX Vega 64 has an average benchmark score of 50001, while the AMD Radeon Pro W6600M has an average of 61896. This is a surprising inversion, since the Vega 64 won the OpenCL head-to-head. The explanation lies in the benchmark suites: the Pro W6600M's average includes only its two strongest results (OpenCL and Vulkan), while the Vega 64's average pulls in its 3DMark Steel Nomad DX12 score of 1669 and a Geekbench Metal score of 68750. That Metal score is actually higher than anything the Pro W6600M recorded, but the 3DMark result drags the Vega 64's average down significantly. The percentile rankings reflect this: the Pro W6600M sits at the 89th percentile among all GPUs, while the Vega 64 sits at the 86th percentile.

Comparing to their nearest rivals in the database, the Pro W6600M's average score of 61896 is 2.6% ahead of the NVIDIA GeForce RTX 4090's 60347 and 2.9% ahead of the AMD Radeon Pro Vega 48's 60140. It trails the AMD Radeon 8050S by just 0.3% (62108). The Vega 64's average of 50001 is 0.1% ahead of the NVIDIA GeForce RTX 5070 Ti (49957) and 0.5% ahead of the Intel Arc A550M (49737), but it is 1.9% behind the AMD Radeon RX 6900 XT (50951) and 3.1% ahead of the AMD Radeon RX 6800 XT (48477). These deltas show that the Vega 64, despite its age, still competes with modern mid-range and high-end cards in the database's scoring system.

The Verdict

The data points to a clear split based on workload type and platform constraints. For users who prioritize raw compute performance in OpenCL-heavy applications, the AMD Radeon RX Vega 64 is the stronger choice, evidenced by its 10.3% lead in that specific benchmark. It also offers higher FP32 throughput (12.66 TFLOPS) and vastly superior memory bandwidth (483.8 GB/s versus 224.0 GB/s), which matters for large data sets. However, the Vega 64 is a dual-slot desktop card requiring two 8-pin power connectors and a 600 W power supply, making it unsuitable for portable systems.

For users on mobile or small-form-factor platforms, the AMD Radeon Pro W6600M is the practical pick. It wins the Vulkan benchmark by 0.9%, supports modern APIs like DirectX 12 Ultimate and Vulkan 1.4 (versus 1.3 on the Vega 64), and draws only 90 W with an IGP slot width and no power connectors. The Pro W6600M also has a higher average benchmark score (61896 versus 50001) and a better percentile ranking (89th versus 86th). Its ray tracing cores are a future-proofing advantage that the Vega 64 simply cannot offer, even if the current benchmark data does not isolate that feature.

Users should also note the release dates: the Vega 64 launched in August 2017, while the Pro W6600M came in June 2021. Both are end-of-life products, but the Pro W6600M is closer to modern driver and API support. The Vega 64's predecessor is Polaris and its successor is Navi, while the Pro W6600M's predecessor is FirePro Mobile. If the workload is Vulkan-based gaming or compute, the Pro W6600M wins. If the workload is OpenCL-heavy and the system can handle a 295 W card, the Vega 64 wins.

FAQ

Q: Which card wins in Geekbench OpenCL?

A: The AMD Radeon RX Vega 64 wins with a score of 62552, beating the AMD Radeon Pro W6600M's 56140 by 10.3%.

Q: Which card wins in Geekbench Vulkan?

A: The AMD Radeon Pro W6600M wins with a score of 67652, beating the AMD Radeon RX Vega 64's 67032 by 0.9%.

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

A: The AMD Radeon Pro W6600M has an average benchmark score of 61896, which is higher than the AMD Radeon RX Vega 64's 50001. The Vega 64's average is pulled down by its 3DMark Steel Nomad DX12 score of 1669.

Q: Which card has better memory bandwidth?

A: The AMD Radeon RX Vega 64 has significantly higher memory bandwidth at 483.8 GB/s, using HBM2 on a 2048-bit bus, compared to the AMD Radeon Pro W6600M's 224.0 GB/s on a 128-bit GDDR6 bus.

Q: Does either card support ray tracing?

A: Yes, the AMD Radeon Pro W6600M has 28 ray tracing cores, while the AMD Radeon RX Vega 64 has none.

Q: What are the power requirements for each card?

A: The AMD Radeon Pro W6600M has a TDP of 90 W and requires no power connectors, while the AMD Radeon RX Vega 64 has a TDP of 295 W and requires two 8-pin power connectors with a suggested 600 W power supply.

Specification Differences

The two cards differ in almost every major specification category. The AMD Radeon Pro W6600M uses the Navi 23 chip on a 7 nm process from TSMC, with 11,060 million transistors on a 237 mm² die. The AMD Radeon RX Vega 64 uses the Vega 10 chip on a 14 nm process from GlobalFoundries, with 12,500 million transistors on a much larger 495 mm² die. Transistor density is 46.7M per mm² for the Pro W6600M, versus 25.3M per mm² for the Vega 64.

Clock speeds also differ substantially. The Pro W6600M has a base clock of 1224 MHz and a boost clock of 2034 MHz, with memory at 1750 MHz (14 Gbps effective). The Vega 64 has a base clock of 1247 MHz and a boost clock of 1546 MHz, with memory at 945 MHz (1890 Mbps effective). The memory subsystems are entirely different: the Pro W6600M uses 8 GB of GDDR6 on a 128-bit bus, while the Vega 64 uses 8 GB of HBM2 on a 2048-bit bus.

Compute resources are heavily skewed toward the Vega 64. It has 4096 shading units, 256 texture mapping units, and 64 ROPs, versus 1792 shading units, 112 TMUs, and 64 ROPs on the Pro W6600M. The Pro W6600M compensates with 28 ray tracing cores, which the Vega 64 lacks entirely. Pixel rates are 130.2 GPixel/s for the Pro W6600M versus 98.94 GPixel/s for the Vega 64, but texture rates favor the Vega 64 at 395.8 GTexel/s versus 227.8 GTexel/s.

The bus interface is PCIe 4.0 x16 on the Pro W6600M, while the Vega 64 uses PCIe 3.0 x16. Display outputs also differ: the Pro W6600M is listed as "Portable Device Dependent," while the Vega 64 has 1x HDMI 2.0b and 3x DisplayPort 1.4a. The Vega 64 is a dual-slot card measuring 280 mm long, 111 mm high, and 40 mm wide, while the Pro W6600M is IGP (integrated graphics processor) with no listed dimensions.

Architecture Differences

The architectural gulf between these two cards is generational. The AMD Radeon Pro W6600M is built on RDNA 2.0, which is a modern graphics architecture designed for efficiency and feature completeness. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Radeon RX Vega 64 uses GCN 5.0, an older architecture that supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The DirectX 12 Ultimate support on the Pro W6600M enables hardware ray tracing, variable rate shading, and mesh shaders, none of which are available on the Vega 64.

The chip design reflects this. The Pro W6600M's Navi 23 is a compact, dense chip at 237 mm², while the Vega 10 is a massive 495 mm² die. The 7 nm process gives the Pro W6600M a clear transistor density advantage (46.7M per mm² versus 25.3M), even though the Vega 10 has more total transistors (12,500 million versus 11,060 million). The Vega 64 compensates for its older process with sheer scale: more shading units, more TMUs, and a 2048-bit memory bus that delivers over twice the bandwidth.

Memory technology is another major architectural split. The Pro W6600M uses GDDR6, which is a standard high-speed VRAM, while the Vega 64 uses HBM2, a stacked memory design that offers much higher bandwidth per pin. The Vega 64's 483.8 GB/s bandwidth is a 116% advantage over the Pro W6600M's 224.0 GB/s. However, the Pro W6600M's memory runs at a much higher effective speed (14 Gbps versus 1890 Mbps), showing how newer GDDR6 has narrowed the gap in practical terms.

The Pro W6600M's generation is listed as "Radeon Pro Mobile (W6x00M)," while the Vega 64 is from the "Vega (RX Vega)" generation. The Pro W6600M's predecessor is FirePro Mobile, and the Vega 64's predecessor is Polaris. The Vega 64's successor is Navi, which is the same chip family as the Pro W6600M, showing the direct lineage between these two architectures.

Where Each One Wins

The AMD Radeon RX Vega 64 wins in scenarios that demand raw compute throughput and massive memory bandwidth. Its 10.3% OpenCL lead over the Pro W6600M is the clearest signal: if a workload is heavily parallel and memory-bound, such as scientific simulation, data processing, or certain rendering tasks, the Vega 64's 4096 shading units and 483.8 GB/s bandwidth will outperform the newer card. Its 12.66 TFLOPS of FP32 performance is also 74% higher than the Pro W6600M's 7.290 TFLOPS. The Vega 64 also wins in texture-heavy workloads, with a 395.8 GTexel/s rate versus 227.8 GTexel/s.

The AMD Radeon Pro W6600M wins in Vulkan-based workloads, as shown by its 0.9% edge in that benchmark. It also wins in any scenario where power consumption and physical footprint matter. The 90 W TDP versus 295 W means the Pro W6600M can fit in systems where the Vega 64 would require a substantial power supply and cooling. The IGP slot width and no power connectors make it suitable for mobile workstations or compact builds. Its PCIe 4.0 interface doubles the bandwidth of the Vega 64's PCIe 3.0, which helps with data transfer in modern systems.

The Pro W6600M also wins on API support. DirectX 12 Ultimate and Vulkan 1.4 are ahead of the Vega 64's DirectX 12 (12_1) and Vulkan 1.3. For developers targeting the latest graphics features, including ray tracing, the Pro W6600M is the only choice between these two. The Vega 64's Metal score of 68750 in the database is higher than the Pro W6600M's recorded scores, but the Pro W6600M was not tested in Metal, so that comparison is incomplete.

In terms of average benchmark score, the Pro W6600M is the better performer overall, with 61896 versus 50001 for the Vega 64. This is a 23.8% advantage, driven by the Pro W6600M's strong OpenCL and Vulkan results. The Vega 64's 3DMark Steel Nomad DX12 score of 1669 is a weak point, suggesting it struggles with modern DirectX 12 workloads despite its compute strengths. Users should choose the Vega 64 for legacy compute and bandwidth-heavy tasks, and the Pro W6600M for modern API support, efficiency, and portable systems.