AMD Radeon PRO W7800 vs AMD Ryzen Z2 A GPU Comparison

FAQ

Q: How does the AMD Radeon PRO W7800 compare to the AMD Ryzen Z2 A GPU in terms of benchmark scores?

A: The Radeon PRO W7800 has recorded benchmark scores of 154366 in Geekbench OpenCL and 175422 in Geekbench Vulkan, giving it an average benchmark score of 164894. The Ryzen Z2 A GPU has no recorded benchmark scores and an average benchmark score of 0, placing it in the 50th percentile versus the W7800's 97th percentile.

Q: What are the architectural generations of these two AMD GPUs?

A: The Radeon PRO W7800 uses the RDNA 3.0 architecture with the Navi 31 chip, codenamed Plum Bonito, and belongs to the Radeon Pro Navi (Navi III Series) generation. The Ryzen Z2 A GPU uses the older RDNA 2.0 architecture with the Van Gogh chip and belongs to the Console GPU (AMD) generation.

Q: What is the difference in memory capacity between the two GPUs?

A: The Radeon PRO W7800 features 32 GB of GDDR6 memory on a 256-bit bus with 576.0 GB/s bandwidth. The Ryzen Z2 A GPU has 16 GB of LPDDR5 memory on a 128-bit bus with 102.4 GB/s bandwidth.

Q: How do their compute capabilities differ?

A: The Radeon PRO W7800 delivers 45.25 TFLOPS FP32 performance with 4480 shading units, 280 texture mapping units, 128 ROPs, and 70 ray tracing cores. The Ryzen Z2 A GPU provides 1.638 TFLOPS FP32 with 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores.

Q: What are the power requirements for each GPU?

A: The Radeon PRO W7800 has a 260 W TDP with dual-slot cooling and two 8-pin power connectors, requiring a 600 W suggested power supply. The Ryzen Z2 A GPU has a 15 W TDP and no separate power connectors or suggested power supply listed.

Q: Which GPU has a higher transistor density?

A: The Radeon PRO W7800, built on a 5 nm process at TSMC, has 57,700 million transistors on a 529 mm² die, yielding a density of 109.1M transistors per mm². The Ryzen Z2 A GPU, built on a 7 nm process at TSMC, has 2,400 million transistors on a 163 mm² die, yielding 14.7M transistors per mm².

Architecture Differences

The architectural divide between these two AMD GPUs is substantial. The Radeon PRO W7800 uses the RDNA 3.0 architecture, while the Ryzen Z2 A GPU uses RDNA 2.0. This generational gap influences nearly every measured characteristic.

Manufacturing process differences are stark. The W7800 is fabricated on a 5 nm process at TSMC, whereas the Z2 A GPU uses a 7 nm process, also at TSMC. The W7800 packs 57,700 million transistors onto a 529 mm² die, achieving a transistor density of 109.1M per mm². The Z2 A GPU contains 2,400 million transistors on a 163 mm² die, with a density of just 14.7M per mm². The newer process node and larger die give the W7800 a massive resource advantage.

Core configuration differences are equally pronounced. The Radeon PRO W7800 has 4480 shading units, 280 TMUs, 128 ROPs, and 70 ray tracing cores. The Ryzen Z2 A GPU has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores. This represents an 8.75x difference in shading units, an 8.75x difference in TMUs, an 8x difference in ROPs, and an 8.75x difference in ray tracing cores.

Clock speeds tell a different story. The W7800 operates at a base clock of 1895 MHz and boosts to 2525 MHz, while the Z2 A GPU runs at 1000 MHz base and 1600 MHz boost. The W7800's higher clocks compound its core count advantage. Memory clocks also differ: the W7800 uses 2250 MHz memory with 18 Gbps effective speed, while the Z2 A GPU uses 800 MHz memory with 6.4 Gbps effective speed.

Memory architecture differs completely. The W7800 uses 32 GB of GDDR6 on a 256-bit bus, providing 576.0 GB/s of bandwidth. The Z2 A GPU uses 16 GB of LPDDR5 on a 128-bit bus, providing 102.4 GB/s. The W7800 has 5.6x the memory bandwidth of the Z2 A GPU.

Power characteristics reflect their different purposes. The W7800 has a 260 W TDP with dual-slot cooling and 2x 8-pin power connectors, requiring a 600 W PSU. The Z2 A GPU has a 15 W TDP, a 17.3x reduction, and no separate power connector or PSU requirement listed. The Z2 A GPU's display output is a single USB Type-C port, while the W7800 offers 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Radeon PRO W7800 uses a PCIe 4.0 x16 bus interface, while the Z2 A GPU has no bus interface listed. The W7800 measures 280 mm in length, 110 mm in height, and 40 mm in width; the Z2 A GPU has no physical dimensions recorded.

Where Each One Wins

The Radeon PRO W7800 dominates in every measurable performance category. Its 97th percentile ranking among all GPUs, compared to the Z2 A GPU's 50th percentile, establishes a clear hierarchy. The W7800's nearest rivals include the NVIDIA RTX A5500 with an average score of 165217 and a delta of -0.2%, the NVIDIA RTX 4500 Ada Generation at 166094 with a -0.7% delta, and the AMD Radeon Pro W6900X at 168574 with a -2.2% delta. The W7800 also outperforms the NVIDIA A100 PCIe 40 GB by 1.5%. These comparisons show the W7800 competing in the upper tier of professional GPUs.

The Ryzen Z2 A GPU has no recorded benchmarks and no nearest rivals in the database. Its 50th percentile ranking and zero average benchmark score indicate it does not compete in the same performance class as the W7800. The Z2 A GPU's advantages lie in power efficiency and portability. Its 15 W TDP versus 260 W represents a dramatic reduction in power draw. The single USB Type-C display output suggests a compact, low-power integration target rather than a workstation expansion card.

The W7800's 32 GB memory capacity and 576.0 GB/s bandwidth position it for large datasets, high-resolution textures, and memory-intensive professional workloads. Its 45.25 TFLOPS FP32 performance and 90.50 TFLOPS FP16 performance (2:1 ratio) support compute-heavy tasks. The Z2 A GPU's 1.638 TFLOPS FP32 and 3.277 TFLOPS FP16 (2:1 ratio) suit lighter workloads.

The W7800 wins on connectivity with 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1 outputs. Its PCIe 4.0 x16 interface provides host bandwidth for workstation integration. The Z2 A GPU's USB Type-C output indicates a different deployment scenario, likely embedded or handheld systems where the 15 W power envelope is critical.

Specification Differences

| Specification | AMD Radeon PRO W7800 | AMD Ryzen Z2 A GPU |

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

| Architecture | RDNA 3.0 | RDNA 2.0 |

| Chip | Navi 31 | Van Gogh |

| Process Node | 5 nm | 7 nm |

| Transistors | 57,700 million | 2,400 million |

| Die Size | 529 mm² | 163 mm² |

| Transistor Density | 109.1M / mm² | 14.7M / mm² |

| Base Clock | 1895 MHz | 1000 MHz |

| Boost Clock | 2525 MHz | 1600 MHz |

| Memory Clock | 2250 MHz, 18 Gbps effective | 800 MHz, 6.4 Gbps effective |

| Memory Size | 32 GB | 16 GB |

| Memory Type | GDDR6 | LPDDR5 |

| Memory Bus Width | 256 bit | 128 bit |

| Memory Bandwidth | 576.0 GB/s | 102.4 GB/s |

| Shading Units | 4480 | 512 |

| TMUs | 280 | 32 |

| ROPs | 128 | 16 |

| Ray Tracing Cores | 70 | 8 |

| Pixel Rate | 323.2 GPixel/s | 25.60 GPixel/s |

| Texture Rate | 707.0 GTexel/s | 51.20 GTexel/s |

| FP32 Performance | 45.25 TFLOPS | 1.638 TFLOPS |

| FP16 Performance | 90.50 TFLOPS (2:1) | 3.277 TFLOPS (2:1) |

| TDP | 260 W | 15 W |

| Bus Interface | PCIe 4.0 x16 | Not listed |

| Display Outputs | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 | 1x USB Type-C |

| Release Date | 2023-04-12 | 2024-12-31 |

| Launch MSRP | 2,499 USD | Not listed |

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the AMD Radeon PRO W7800 and the AMD Ryzen Z2 A GPU. The W7800 has two recorded benchmarks: 154366 in Geekbench OpenCL and 175422 in Geekbench Vulkan. Its average benchmark score is 164894. The Z2 A GPU has zero recorded benchmarks and an average benchmark score of 0.

The performance gap can be quantified through compute specifications. The W7800's FP32 throughput of 45.25 TFLOPS is 27.6x the Z2 A GPU's 1.638 TFLOPS. FP16 performance follows the same pattern: 90.50 TFLOPS versus 3.277 TFLOPS, a 27.6x difference. Pixel rate differs by 12.6x, with the W7800 producing 323.2 GPixel/s against 25.60 GPixel/s. Texture rate differs by 13.8x, with 707.0 GTexel/s versus 51.20 GTexel/s.

Memory bandwidth shows a 5.6x advantage for the W7800 at 576.0 GB/s versus 102.4 GB/s. The W7800's 32 GB capacity doubles the Z2 A GPU's 16 GB. Core counts scale by 8.75x across shading units, TMUs, and ray tracing cores, and by 8x for ROPs.

The W7800's positioning among rivals reinforces its standing. It trails the NVIDIA RTX 4500 Ada Generation by 0.7% and the NVIDIA RTX A5500 by 0.2%, while leading the NVIDIA A100 PCIe 40 GB by 1.5% and the AMD Radeon Pro W6900X by 2.2%. These margins place the W7800 in a tight competitive cluster at the top of the professional GPU market.

The Z2 A GPU lacks comparable data. Its 50th percentile ranking places it at the median of all GPUs in the database, but with no benchmarks recorded, this percentile appears to reflect its specification tier rather than measured performance. The 15 W TDP and 7 nm process indicate a low-power design, but its compute resources are an order of magnitude below the W7800 across every metric.

Release timing differs by nearly two years. The W7800 launched on 2023-04-12 with a launch MSRP of 2,499 USD. The Z2 A GPU launched on 2024-12-31 with no MSRP recorded. Both remain in active production status.