AMD Radeon Pro W5700 vs AMD Radeon RX 6600M Comparison

The Verdict

The AMD Radeon Pro W5700 and AMD Radeon RX 6600M serve different masters. The Pro W5700 is the workstation-oriented card, winning 7 of the 10 head-to-head benchmarks, while the RX 6600M is a mobile gaming part that takes 3 wins. For general compute and legacy DirectX workloads, the Pro W5700 is the stronger pick. For modern graphics API performance and Metal-based tasks, the RX 6600M pulls ahead. The data shows the Pro W5700 holds a 10.1% lead in Geekbench OpenCL and a 15% lead in Passmark GPU Compute, making it the choice for compute-focused users. The RX 6600M counters with a 23.5% win in Passmark DirectX 11 and a 2.9% edge in Geekbench Metal, suiting it to gaming and modern API workloads. The Pro W5700 also lands in the 71st percentile of all GPUs, while the RX 6600M sits at the 68th percentile.

Architecture Differences

The Pro W5700 uses the Navi 10 chip built on RDNA 1.0 architecture, while the RX 6600M uses the Navi 23 chip on RDNA 2.0. Both are manufactured on a 7 nm process at TSMC. The Pro W5700 packs 10,300 million transistors on a 251 mm² die, giving a transistor density of 41.0M per mm². The RX 6600M has 11,060 million transistors on a smaller 237 mm² die, yielding a higher density of 46.7M per mm². The RX 6600M is part of the Radeon RX 6000 series and the Navi Mobile generation, while the Pro W5700 belongs to the Radeon Pro Navi generation.

The RX 6600M adds 28 ray tracing cores, a feature the Pro W5700 lacks entirely. The Pro W5700 counters with more shading units, 2304 versus 1792, and more texture mapping units, 144 versus 112. Both have 64 raster operation units. The RX 6600M supports DirectX 12 Ultimate (12_2), while the Pro W5700 only reaches DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The RX 6600M is a mobile IGP part with no power connectors, while the Pro W5700 is a dual-slot card requiring a 1x 6-pin plus 1x 8-pin power connection. The Pro W5700 uses PCIe 4.0 x16, while the RX 6600M uses PCIe 4.0 x8. Display outputs differ sharply: the Pro W5700 offers 5x mini-DisplayPort 1.4a plus 1x USB Type-C, while the RX 6600M's outputs are portable device dependent.

Head-to-Head Benchmarks

The Pro W5700 dominates in compute-oriented tests. In Geekbench OpenCL, it scores 74,613 against the RX 6600M's 67,765, a 10.1% advantage. The Passmark GPU Compute test shows a 15% gap, with the Pro W5700 at 6,495 and the RX 6600M at 5,646. Legacy DirectX performance heavily favors the Pro W5700: in Passmark DirectX 9, it scores 225 versus 184, a 22.3% margin. The 2D workload also goes to the Pro W5700, which posts 899 in Passmark G2D against 728, a 23.5% lead.

The RX 6600M wins the modern API tests. Geekbench Metal goes to the RX 6600M with 92,237 against 89,557, a 2.9% edge. Geekbench Vulkan also favors the RX 6600M, 73,740 versus 70,706, a 4.1% difference. The largest single victory for the RX 6600M comes in Passmark DirectX 11, where it scores 136 against 104, a 23.5% margin.

The remaining tests are close. Passmark DirectX 10 goes narrowly to the Pro W5700, 88 versus 87, a 1.1% difference. Passmark DirectX 12 also goes to the Pro W5700, 54 versus 52, a 3.8% edge. Passmark G3D favors the Pro W5700 by 4.2%, with scores of 14,520 and 13,929. The Pro W5700's average benchmark score sits at 25,726, while the RX 6600M averages 23,273.

Specification Differences

The Pro W5700 has a base clock of 1400 MHz and a boost clock of 1880 MHz, while the RX 6600M runs a base clock of 2068 MHz and a boost clock of 2416 MHz, with a game clock of 2177 MHz. Both use 8 GB of GDDR6 memory, but the Pro W5700 has a 256-bit bus yielding 448.0 GB/s of bandwidth, while the RX 6600M has a 128-bit bus yielding 224.0 GB/s. The memory clock is identical at 1750 MHz, or 14 Gbps effective.

The pixel rate favors the RX 6600M, which reaches 154.6 GPixel/s versus 120.3 GPixel/s for the Pro W5700. Texture rates are nearly identical: 270.7 GTexel/s for the Pro W5700 and 270.6 GTexel/s for the RX 6600M. FP32 compute is essentially tied at 8.663 TFLOPS for the Pro W5700 and 8.659 TFLOPS for the RX 6600M. FP16 performance is also close, with 17.33 TFLOPS for the Pro W5700 and 17.32 TFLOPS for the RX 6600M, both at a 2:1 ratio.

Power consumption differs dramatically. The Pro W5700 has a TDP of 205 W and requires a 550 W power supply, while the RX 6600M has a TDP of 100 W and lists no suggested PSU. The Pro W5700 measures 267 mm in length and 111 mm in height, while the RX 6600M has no recorded dimensions. The Pro W5700 launched on 2019-11-18 with a launch MSRP of 799 USD, while the RX 6600M launched later on 2021-05-30 with no launch MSRP recorded. The Pro W5700's predecessor is the Radeon Pro Vega series, while the RX 6600M's predecessor is Polaris Mobile. Both are end-of-life products.

FAQ

Q: Which GPU has more shading units?

A: The AMD Radeon Pro W5700 has 2304 shading units, compared to 1792 for the AMD Radeon RX 6600M.

Q: Does the RX 6600M support ray tracing?

A: Yes, the AMD Radeon RX 6600M includes 28 ray tracing cores. The AMD Radeon Pro W5700 has no ray tracing cores.

Q: Which card has higher memory bandwidth?

A: The AMD Radeon Pro W5700 has 448.0 GB/s of memory bandwidth thanks to its 256-bit bus, while the AMD Radeon RX 6600M has 224.0 GB/s over a 128-bit bus.

Q: How do the GPUs compare in Geekbench Metal?

A: The AMD Radeon RX 6600M leads in Geekbench Metal with a score of 92,237, while the AMD Radeon Pro W5700 scores 89,557. That is a 2.9% advantage for the RX 6600M.

Q: Which GPU wins in Passmark DirectX 9?

A: The AMD Radeon Pro W5700 wins Passmark DirectX 9 with a score of 225, a 22.3% lead over the AMD Radeon RX 6600M's 184.

Q: What are the TDP values for each GPU?

A: The AMD Radeon Pro W5700 has a TDP of 205 W, while the AMD Radeon RX 6600M has a TDP of 100 W.

Where Each One Wins

The Pro W5700 wins in compute-heavy and legacy workloads. Its 10.1% Geekbench OpenCL lead and 15% Passmark GPU Compute advantage make it the better choice for OpenCL-based compute tasks. The 22.3% margin in Passmark DirectX 9 and the 23.5% lead in Passmark G2D indicate strong legacy API and 2D performance. The Pro W5700 also edges out the RX 6600M in Passmark G3D by 4.2%, suggesting better overall 3D rendering in that benchmark. Its 256-bit memory bus and 448.0 GB/s bandwidth provide twice the bandwidth of the RX 6600M, which matters for memory-intensive workloads.

The RX 6600M wins in modern graphics APIs and efficiency. Its 23.5% lead in Passmark DirectX 11 makes it the stronger choice for DirectX 11 gaming. The 2.9% Geekbench Metal advantage and 4.1% Geekbench Vulkan lead show it handles modern compute APIs well. The RX 6600M also offers ray tracing support through its 28 ray tracing cores, which the Pro W5700 cannot match. Its 100 W TDP, less than half the Pro W5700's 205 W, makes it the clear choice for power-constrained mobile systems. Higher clocks, with a boost clock of 2416 MHz versus 1880 MHz, and a higher pixel rate of 154.6 GPixel/s versus 120.3 GPixel/s, round out its advantages. The RX 6600M also supports DirectX 12 Ultimate, while the Pro W5700 is limited to DirectX 12 (12_1).