AMD Radeon Pro Vega 56 vs AMD Radeon Pro W6600M Comparison

# AMD Radeon Pro Vega 56 vs AMD Radeon Pro W6600M

The AMD Radeon Pro Vega 56 and AMD Radeon Pro W6600M represent two distinct eras of AMD professional graphics, with the Vega 56 built on the older GCN 5.0 architecture and the W6600M employing the modern RDNA 2.0 design. Benchmark data shows a near-even split: each card claims one victory in the head-to-head comparison, with the Vega 56 taking OpenCL performance by 10.3% while the W6600M edges ahead in Vulkan by 2.4%. Both cards sit at the 89th percentile among all GPUs, though the Vega 56 posts a higher average benchmark score of 63,693 compared to the W6600M's 61,896.

Where Each One Wins

The AMD Radeon Pro Vega 56 is the clear choice for OpenCL-accelerated workloads. Its Geekbench OpenCL score of 61,930 beats the W6600M's 56,140 by a decisive 10.3% margin. This advantage stems from the Vega 56's substantially larger compute footprint—3,584 shading units versus 1,792 on the W6600M—which translates directly to raw parallel processing throughput in OpenCL environments. For professionals running compute-heavy applications that leverage OpenCL, the Vega 56's higher FP32 throughput of 8.960 TFLOPS (compared to 7.290 TFLOPS on the W6600M) gives it a measurable edge in number-crunching tasks.

The AMD Radeon Pro W6600M takes the Vulkan crown, scoring 67,652 versus the Vega 56's 66,004—a 2.4% advantage. This is notable because the W6600M accomplishes this with fewer than half the shading units (1,792 vs 3,584) and significantly lower FP32 compute (7.290 TFLOPS vs 8.960 TFLOPS). The RDNA 2.0 architecture's efficiency in Vulkan workloads, combined with a much higher boost clock of 2,034 MHz versus 1,250 MHz on the Vega 56, allows the W6600M to overcome its raw compute deficit. The W6600M also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, whereas the Vega 56 is limited to DirectX 12 (12_1) and Vulkan 1.3, giving the newer card access to more modern rendering features.

In terms of rasterization throughput, the W6600M's pixel rate of 130.2 GPixel/s dwarfs the Vega 56's 80.00 GPixel/s, a 62.8% advantage that benefits fill-rate-bound scenarios. However, the Vega 56 counters with a texture rate of 280.0 GTexel/s, outpacing the W6600M's 227.8 GTexel/s by 22.9%. The W6600M's ray tracing capabilities, courtesy of its 28 RT cores, give it a feature-set advantage in ray-traced content, though no dedicated benchmark data is available in the pack to quantify this.

Architecture Differences

The two GPUs are built on fundamentally different architectures, fabrication processes, and design philosophies. The Vega 56 uses the Vega 10 chip built on GCN 5.0 architecture, manufactured on a 14 nm process at GlobalFoundries. This older design packs 12,500 million transistors across a massive 495 mm² die, yielding a transistor density of 25.3 million per square millimeter. In contrast, the W6600M employs the Navi 23 chip with RDNA 2.0 architecture, fabricated on TSMC's 7 nm process. While it contains slightly fewer transistors at 11,060 million, the smaller 237 mm² die achieves a much higher transistor density of 46.7 million per square millimeter—an 84.6% improvement in packing efficiency.

Memory subsystems diverge sharply as well. The Vega 56 utilizes 8 GB of HBM2 memory on a 2048-bit bus, delivering 402.4 GB/s of bandwidth. The W6600M also has 8 GB, but uses GDDR6 on a 128-bit bus, capping bandwidth at 224.0 GB/s. The Vega 56's bandwidth advantage of 79.6% is substantial and directly benefits memory-intensive workloads like large dataset processing and high-resolution texture streaming. However, the W6600M's memory runs at a much higher effective speed of 14 Gbps versus 1,572 Mbps, though the narrower bus ultimately limits aggregate throughput.

Clock speeds tell a different story. The Vega 56 operates at a base clock of 1,138 MHz and boosts to 1,250 MHz, while the W6600M starts at 1,224 MHz and boosts aggressively to 2,034 MHz—a 62.7% higher boost clock. This clock advantage helps the W6600M compensate for its reduced compute unit count. Power consumption reflects the architectural generation gap: the Vega 56 draws 210 W TDP while the W6600M sips just 90 W, making the newer card 57.1% more power-efficient on paper. The Vega 56 also uses PCIe 3.0 x16, while the W6600M supports PCIe 4.0 x16, doubling the interface bandwidth for data transfers.

FAQ

Q: Which card has better overall average benchmark performance?

A: The AMD Radeon Pro Vega 56 posts a higher average benchmark score of 63,693 compared to the W6600M's 61,896, a difference of roughly 2.9%. Both cards rank at the 89th percentile among all GPUs.

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

A: The Vega 56 wins Geekbench OpenCL decisively, scoring 61,930 versus 56,140 for the W6600M—a 10.3% advantage. This is the largest performance gap between the two cards in any benchmark.

Q: Does the W6600M support ray tracing?

A: Yes, the W6600M includes 28 dedicated ray tracing cores, a feature entirely absent from the Vega 56, which has no RT cores listed. The W6600M also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Vega 56 is limited to DirectX 12 (12_1) and Vulkan 1.3.

Q: Which GPU offers higher memory bandwidth?

A: The Vega 56 provides 402.4 GB/s of bandwidth via HBM2 memory on a 2048-bit bus, which is 79.6% higher than the W6600M's 224.0 GB/s from GDDR6 on a 128-bit bus.

Q: How do power requirements differ between the two?

A: The Vega 56 has a TDP of 210 W, while the W6600M is rated at just 90 W. The W6600M draws 57.1% less power, making it substantially more efficient for mobile workstation deployments.

Q: What are the production statuses of these GPUs?

A: Both are end-of-life products. The Vega 56 was released in August 2017, while the W6600M launched in June 2021, making the latter roughly four years newer.

Specification Differences

| Specification | AMD Radeon Pro Vega 56 | AMD Radeon Pro W6600M |

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

| Chip | Vega 10 | Navi 23 |

| Architecture | GCN 5.0 | RDNA 2.0 |

| Process Node | 14 nm | 7 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | 12,500 million | 11,060 million |

| Die Size | 495 mm² | 237 mm² |

| Transistor Density | 25.3M / mm² | 46.7M / mm² |

| Base Clock | 1138 MHz | 1224 MHz |

| Boost Clock | 1250 MHz | 2034 MHz |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 2048 bit | 128 bit |

| Memory Bandwidth | 402.4 GB/s | 224.0 GB/s |

| Memory Clock | 1572 Mbps effective | 14 Gbps effective |

| Shading Units | 3584 | 1792 |

| TMUs | 224 | 112 |

| ROPs | 64 | 64 |

| RT Cores | None | 28 |

| Pixel Rate | 80.00 GPixel/s | 130.2 GPixel/s |

| Texture Rate | 280.0 GTexel/s | 227.8 GTexel/s |

| FP32 | 8.960 TFLOPS | 7.290 TFLOPS |

| FP16 | 17.92 TFLOPS (2:1) | 14.58 TFLOPS (2:1) |

| TDP | 210 W | 90 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| DirectX Support | 12 (12_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.3 | 1.4 |

| Display Outputs | 1x HDMI 2.0b, 3x DisplayPort 1.4a | Portable Device Dependent |

| Release Date | 2017-08-13 | 2021-06-07 |

Head-to-Head Benchmarks

The Geekbench OpenCL test delivers the most lopsided result in this comparison. The AMD Radeon Pro Vega 56 scores 61,930, beating the W6600M's 56,140 by 10.3%. This is a substantial margin that reflects the Vega 56's fundamental compute advantage: twice the shading units (3,584 vs 1,792), double the TMUs (224 vs 112), and 22.9% higher texture throughput (280.0 GTexel/s vs 227.8 GTexel/s). The Vega 56's HBM2 memory with 402.4 GB/s bandwidth also provides a 79.6% bandwidth advantage over the W6600M's GDDR6, which helps feed its larger compute array. For OpenCL-based rendering, simulation, or data processing, the Vega 56 is clearly the stronger performer.

The Geekbench Vulkan test flips the script, though by a narrower margin. The W6600M scores 67,652 against the Vega 56's 66,004, a 2.4% win. This result is remarkable given the W6600M's hardware disadvantages on paper—half the shading units, half the TMUs, and 18.6% lower FP32 throughput. The W6600M's victory comes from architectural efficiency and clock speed. Its 2,034 MHz boost clock is 62.7% higher than the Vega 56's 1,250 MHz, allowing each compute unit to execute work far faster. The RDNA 2.0 architecture also supports Vulkan 1.4 versus Vulkan 1.3 on the Vega 56, potentially enabling better driver-level optimization in Vulkan titles. The W6600M's pixel rate of 130.2 GPixel/s—62.8% higher than the Vega 56's 80.00 GPixel/s—also helps in rasterization-heavy Vulkan workloads.

The overall picture is one of generational trade-offs. The Vega 56 leverages brute-force compute resources and massive memory bandwidth to dominate OpenCL, while the W6600M uses architectural refinement, higher clocks, and modern API support to win Vulkan. The Vega 56's average benchmark score of 63,693 edges out the W6600M's 61,896, but the W6600M does so while consuming 57.1% less power and occupying a smaller die. The W6600M's nearest rival, the AMD Radeon Pro Vega 48, scores 60,140, meaning the W6600M sits 2.9% above its predecessor-class competitor. The Vega 56, meanwhile, sits just 0.1% below the AMD Radeon RX 7600M in average score, showing it remains competitive despite its age.