AMD Radeon Pro 580 vs AMD Radeon Pro Duo Comparison

The AMD Radeon Pro 580 and the AMD Radeon Pro Duo represent two very different approaches to professional graphics. The Pro 580 is a modern, power-efficient mobile-class part, while the Pro Duo is an older, dual-GPU flagship desktop card. Benchmark data shows the Pro 580 edges out the Pro Duo in the only shared test, but the specifications tell a story of contrasting design philosophies. The Pro 580 is the more practical choice for current workloads, while the Pro Duo offers raw compute potential that is hampered by its age and limited software support.

The Verdict

Choose the AMD Radeon Pro 580 if you need a balanced, modern GPU with better software compatibility and a clear performance win in the available benchmark. It scores 38,457 in Geekbench OpenCL, which is 7.2% ahead of the Pro Duo's 35,860. This places it in the 82nd percentile of all GPUs, matching rivals like the NVIDIA GeForce RTX 5070 (which is only 0.1% faster). The Pro 580 also supports Vulkan 1.3 and DirectX 12 (12_0), ensuring broader application support.

Choose the AMD Radeon Pro Duo if you prioritize theoretical compute horsepower and have workloads that can utilize its dual-GPU design. It offers 8.192 TFLOPS FP32 performance, 64 ROPs, and a massive 512.0 GB/s memory bandwidth. Its 80th percentile ranking is close to the Pro 580's, but it trails in actual Geekbench OpenCL performance. The Pro Duo is a niche product for legacy multi-GPU setups, not for general modern use.

Architecture Differences

The architectural gap is significant. The Pro 580 uses GCN 4.0 on a 14 nm process from GlobalFoundries, while the Pro Duo uses GCN 3.0 on a 28 nm process from TSMC. This gives the Pro 580 a massive efficiency advantage: it packs 5,700 million transistors into a 232 mm² die (24.6M / mm² density), whereas the Pro Duo crams 8,900 million transistors into a 596 mm² die (14.9M / mm² density). The Pro 580 is denser and newer.

The Pro Duo is built on the "Capsaicin" chip and is a dual-GPU card, which explains its 4096 shading units and 256 TMUs—double the Pro 580's 2304 shaders and 144 TMUs. However, the Pro 580 benefits from a newer architecture with better instruction efficiency. The Pro Duo supports Vulkan 1.2.170, while the Pro 580 supports Vulkan 1.3. Both support DirectX 12 (12_0) and OpenGL 4.6. The Pro 580's memory is GDDR5 on a 256-bit bus, while the Pro Duo uses HBM on a 4096-bit bus.

Head-to-Head Benchmarks

There is one direct benchmark comparison: Geekbench OpenCL. The Pro 580 scores 38,457 versus the Pro Duo's 35,860. This is a 7.2% victory for the Pro 580. This is notable because the Pro Duo has significantly higher peak specifications: 8.192 TFLOPS vs 5.530 TFLOPS FP32, and 512.0 GB/s vs 217.0 GB/s bandwidth. Yet, in a real-world compute test, the older dual-GPU architecture loses to the newer single-GPU part.

The Pro 580's score of 38,457 puts it in close competition with the NVIDIA GeForce RTX 5070 (40,377, just 0.1% faster) and the AMD Radeon Pro WX 7100 (40,063, 0.6% faster). It also beats the NVIDIA RTX A500 Mobile (39,568) by 1.9%. The Pro Duo's 35,860 score sits near the NVIDIA Quadro GV100 (35,520, 1% faster) and the NVIDIA GeForce RTX 5070 Ti Mobile (35,435, 1.2% faster). It is 1.2% behind the NVIDIA T1000 and 1.8% behind the AMD Radeon RX 5300M.

The data suggests that the Pro Duo's dual-GPU setup does not scale well in OpenCL, likely due to driver overhead and workload distribution issues. The Pro 580, with its newer GCN 4.0 architecture, delivers more consistent performance. In terms of other synthetic metrics, the Pro Duo holds the theoretical edge in pixel rate (64.00 GPixel/s vs 38.40 GPixel/s) and texture rate (256.0 GTexel/s vs 172.8 GTexel/s), but these do not translate into a benchmark win.

Specification Differences

| Feature | AMD Radeon Pro 580 | AMD Radeon Pro Duo |

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

| Chip | Ellesmere | Capsaicin |

| Architecture | GCN 4.0 | GCN 3.0 |

| Process Node | 14 nm | 28 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | 5,700 million | 8,900 million |

| Die Size | 232 mm² | 596 mm² |

| Transistor Density | 24.6M / mm² | 14.9M / mm² |

| Base Clock | 1100 MHz | N/A |

| Boost Clock | 1200 MHz | N/A |

| Memory Clock | 1695 MHz (6.8 Gbps effective) | 500 MHz (1000 Mbps effective) |

| Memory Size | 8 GB | 4 GB |

| Memory Type | GDDR5 | HBM |

| Memory Bus Width | 256 bit | 4096 bit |

| Memory Bandwidth | 217.0 GB/s | 512.0 GB/s |

| Shading Units | 2304 | 4096 |

| TMUs | 144 | 256 |

| ROPs | 32 | 64 |

| Pixel Rate | 38.40 GPixel/s | 64.00 GPixel/s |

| Texture Rate | 172.8 GTexel/s | 256.0 GTexel/s |

| FP32 | 5.530 TFLOPS | 8.192 TFLOPS |

| FP16 | 5.530 TFLOPS (1:1) | 8.192 TFLOPS (1:1) |

| TDP | 185 W | 350 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 3x 8-pin |

| Suggested PSU | N/A | 750 W |

| Display Outputs | Portable Device Dependent | 1x HDMI 1.4a, 3x DisplayPort 1.2 |

| Vulkan | 1.3 | 1.2.170 |

| Release Date | 2017-06-04 | 2016-04-25 |

| Predecessor | N/A | FirePro GCN |

| Successor | N/A | Radeon Pro Polaris |

| Launch MSRP | N/A | 1,499 USD |

| Length | N/A | 277 mm (10.9 inches) |

| Height | N/A | 111 mm (4.4 inches) |

FAQ

Q: Which GPU has a higher benchmark score?

A: The AMD Radeon Pro 580 is faster in Geekbench OpenCL, scoring 38,457 compared to the Pro Duo's 35,860, a 7.2% difference.

Q: Does the Pro Duo have more memory bandwidth?

A: Yes, the Pro Duo has 512.0 GB/s bandwidth using HBM on a 4096-bit bus, versus the Pro 580's 217.0 GB/s on a 256-bit GDDR5 bus.

Q: Which card is more power-efficient?

A: The Pro 580 is significantly more efficient, with a 185 W TDP and no power connectors, while the Pro Duo has a 350 W TDP and requires 3x 8-pin connectors.

Q: What are the closest rivals to each card?

A: The Pro 580's closest rival is the NVIDIA GeForce RTX 5070 (0.1% faster). The Pro Duo's closest rival is the NVIDIA Quadro GV100 (1% faster).

Q: Which GPU supports a newer Vulkan version?

A: The Pro 580 supports Vulkan 1.3, while the Pro Duo is limited to Vulkan 1.2.170.

Q: How much VRAM does each card have?

A: The Pro 580 has 8 GB of GDDR5, while the Pro Duo has 4 GB of HBM.

Where Each One Wins

The AMD Radeon Pro 580 wins in the most critical category: actual benchmark performance. Its 7.2% lead in Geekbench OpenCL demonstrates that its newer GCN 4.0 architecture is more efficient than the Pro Duo's older GCN 3.0 design. It also wins on modern features (Vulkan 1.3), lower power draw (185 W vs 350 W), and double the VRAM (8 GB vs 4 GB). Its compact IGP form factor and lack of external power connectors make it suitable for integrated systems, while its 82nd percentile ranking places it above the Pro Duo's 80th percentile. For any modern professional workload, the Pro 580 is the better choice.

The AMD Radeon Pro Duo wins on raw theoretical specifications. It has more shading units (4096 vs 2304), higher FP32 compute (8.192 TFLOPS vs 5.530 TFLOPS), and 512.0 GB/s of memory bandwidth—more than double the Pro 580's 217.0 GB/s. It also has a higher pixel rate (64.00 GPixel/s vs 38.40 GPixel/s) and texture rate (256.0 GTexel/s vs 172.8 GTexel/s). However, these advantages do not materialize in the benchmark data. The Pro Duo's dual-GPU configuration appears to suffer from software scaling issues. It is also a physically large dual-slot card (277 mm long) that requires a 750 W PSU, making it a challenging installation. Its 4 GB HBM frame buffer is limiting for modern applications, and its Vulkan 1.2.170 support is outdated. The Pro Duo is only viable for legacy multi-GPU compute tasks that are explicitly optimized for its architecture. The benchmark data clearly favors the Pro 580 for all general-purpose use.