AMD Radeon 8065S vs AMD Radeon PRO W7900 Comparison

FAQ

Q: What is the fundamental difference between the AMD Radeon 8065S and the AMD Radeon PRO W7900?

A: The Radeon 8065S is an integrated graphics processor (IGP) built on the RDNA 3.5 architecture using a 4 nm process, designed for mobile devices. The Radeon PRO W7900 is a discrete workstation card built on RDNA 3.0 using a 5 nm process, designed for professional desktop workloads.

Q: How do the memory configurations differ between these two GPUs?

A: The Radeon 8065S uses system-shared memory, meaning its memory size, type, bus width, and bandwidth are all dependent on the host system. The Radeon PRO W7900 has 48 GB of dedicated GDDR6 memory on a 384-bit bus, delivering 864.0 GB/s of bandwidth.

Q: Which GPU has a higher raw compute throughput?

A: The Radeon PRO W7900 delivers 61.32 TFLOPS of FP32 performance, which is exactly four times the 15.36 TFLOPS of the Radeon 8065S. Both GPUs offer FP16 at a 1:1 ratio with their FP32 figures.

Q: What is the thermal design power difference?

A: The Radeon 8065S has a TDP of 55 W, while the Radeon PRO W7900 has a TDP of 295 W. The PRO W7900 also requires two 8-pin power connectors and a 600 W suggested PSU, whereas the 8065S uses no power connectors at all.

Q: How do the benchmark scores compare?

A: The Radeon PRO W7900 has an average benchmark score of 110,725, placing it in the 94th percentile of all GPUs. The Radeon 8065S has no recorded benchmark scores and sits in the 50th percentile.

Q: What are the physical dimensions of the Radeon PRO W7900?

A: The Radeon PRO W7900 measures 280 mm in length, 110 mm in height, and 51 mm in width, occupying a triple-slot form factor. Its launch MSRP is 3,999 USD.

Architecture Differences

The architectural gap between these two AMD GPUs is substantial. The Radeon 8065S uses the Gorgon Halo chip built on RDNA 3.5, fabricated on TSMC's 4 nm process. It is part of the Navi Mobile (RX 8000M) generation and is explicitly positioned as an integrated solution. The chip itself measures 308 mm² with an unknown transistor count. The Radeon PRO W7900, in contrast, uses the Navi 31 chip on RDNA 3.0, fabricated on a 5 nm process at TSMC. Its die is significantly larger at 529 mm² and contains 57,700 million transistors, giving a transistor density of 109.1M per mm².

The compute resources differ by a factor of roughly 2.4. The Radeon 8065S has 2,560 shading units, 160 texture mapping units, 64 render output units, and 40 ray tracing cores. The Radeon PRO W7900 has 6,144 shading units, 384 TMUs, 192 ROPs, and 96 RT cores. This means the PRO W7900 has more than double the shading units, exactly 2.4 times the TMUs, three times the ROPs, and 2.4 times the RT cores.

Clock behavior also differs markedly. The Radeon 8065S has a base clock of 1295 MHz and a boost clock of 3000 MHz, which is a much higher boost ceiling than the PRO W7900's 1760 MHz base and 2495 MHz boost. However, the PRO W7900 compensates with far more execution units. Memory clocks are listed as system-shared for the 8065S, while the PRO W7900 runs at 2250 MHz with 18 Gbps effective.

The bus interfaces reflect their intended platforms. The Radeon 8065S uses PCIe 5.0 x16, appropriate for a modern mobile IGP. The Radeon PRO W7900 uses PCIe 4.0 x16. Display outputs on the 8065S are portable-device dependent, while the PRO W7900 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, so API-level feature support is identical. The production status for both is active. The 8065S was released on 2025-12-31, while the PRO W7900 launched on 2023-05-25.

The Verdict

The data shows a clear performance hierarchy, but the intended use cases are entirely different. The Radeon PRO W7900 is the dominant compute solution on every measurable specification. It delivers 61.32 TFLOPS of FP32 performance versus 15.36 TFLOPS, has 48 GB of dedicated GDDR6 memory with 864.0 GB/s bandwidth, and sits in the 94th percentile of all GPUs with an average benchmark score of 110,725. Its nearest rivals in the database include the AMD Radeon Pro Vega II at 109,617 (1% behind), the NVIDIA RTX A5500 Mobile at 113,944 (2.8% ahead), the AMD Radeon Pro W6600X at 107,342 (3.2% behind), and the NVIDIA Tesla V100 SXM2 16 GB at 114,395 (3.2% ahead). This places the PRO W7900 in a tightly contested professional workstation segment.

The Radeon 8065S, with its 55 W TDP, system-shared memory, and 50th percentile ranking, is not a competitor to the PRO W7900 in raw performance. It is an integrated solution for mobile platforms where power efficiency and space constraints matter more than absolute throughput. Its 308 mm² die on 4 nm is compact, and its boost clock of 3000 MHz is the highest among the two, but the sheer execution unit count of the PRO W7900 overwhelms it.

For professional workloads requiring maximum compute, dedicated memory capacity, and sustained performance, the Radeon PRO W7900 is the only choice based on the recorded data. For lightweight, power-constrained mobile systems where integrated graphics are sufficient, the Radeon 8065S serves a different purpose entirely. The 94th versus 50th percentile gap in the database ranking summarizes the performance delta effectively.

Specification Differences

| Specification | AMD Radeon 8065S | AMD Radeon PRO W7900 |

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

| Architecture | RDNA 3.5 | RDNA 3.0 |

| Chip | Gorgon Halo | Navi 31 |

| Process Node | 4 nm | 5 nm |

| Transistors | Unknown | 57,700 million |

| Die Size | 308 mm² | 529 mm² |

| Transistor Density | Not listed | 109.1M / mm² |

| Base Clock | 1295 MHz | 1760 MHz |

| Boost Clock | 3000 MHz | 2495 MHz |

| Memory Size | System Shared | 48 GB |

| Memory Type | System Shared | GDDR6 |

| Memory Bus Width | System Shared | 384 bit |

| Memory Bandwidth | System Dependent | 864.0 GB/s |

| Shading Units | 2560 | 6144 |

| TMUs | 160 | 384 |

| ROPs | 64 | 192 |

| RT Cores | 40 | 96 |

| Pixel Rate | 192.0 GPixel/s | 479.0 GPixel/s |

| Texture Rate | 480.0 GTexel/s | 958.1 GTexel/s |

| FP32 | 15.36 TFLOPS | 61.32 TFLOPS |

| FP16 | 15.36 TFLOPS (1:1) | 61.32 TFLOPS (1:1) |

| TDP | 55 W | 295 W |

| Slot Width | IGP | Triple-slot |

| Power Connectors | None | 2x 8-pin |

| Suggested PSU | Not listed | 600 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display Outputs | Portable Device Dependent | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 |

| Dimensions | Not listed | 280 mm x 110 mm x 51 mm |

| Release Date | 2025-12-31 | 2023-05-25 |

| Predecessor | Polaris Mobile | Radeon Pro Vega |

| Launch MSRP | Not listed | 3,999 USD |

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two GPUs, so the comparison relies on the available specification data and the PRO W7900's recorded benchmark performance.

The Radeon PRO W7900 achieves 84,379 in Geekbench OpenCL and 137,070 in Geekbench Vulkan. These scores, combined into an average of 110,725, place it in the 94th percentile of all GPUs. The Radeon 8065S has no benchmark entries and a percentile ranking of 50, which is the median of the database.

The FP32 compute gap is the most decisive metric. The PRO W7900's 61.32 TFLOPS is exactly four times the 8065S's 15.36 TFLOPS. This means for every floating-point operation the 8065S completes, the PRO W7900 completes four. The texture rate gap is nearly identical: 958.1 GTexel/s versus 480.0 GTexel/s, which is a 99.6% advantage for the PRO W7900. The pixel rate tells a similar story, with the PRO W7900 delivering 479.0 GPixel/s versus 192.0 GPixel/s, a 149.5% advantage.

Memory bandwidth is where the PRO W7900's discrete design provides an insurmountable lead. Its 864.0 GB/s of dedicated GDDR6 bandwidth is entirely independent of host system resources. The 8065S's bandwidth is system-dependent, meaning its performance scales with the host laptop's memory configuration. In any fixed comparison, the PRO W7900's dedicated memory subsystem will outperform shared memory for bandwidth-intensive workloads.

The Radeon 8065S does hold one advantage in clock speed. Its 3000 MHz boost clock is 20.2% higher than the PRO W7900's 2495 MHz boost. This higher clock rate partially compensates for the lower execution unit count, but not enough to close the compute gap. The 8065S also uses the newer PCIe 5.0 x16 interface versus PCIe 4.0 x16, which provides higher host transfer bandwidth on compatible platforms.

Where Each One Wins

The Radeon PRO W7900 wins in every compute-heavy professional scenario. Its 61.32 TFLOPS FP32 throughput, 48 GB of GDDR6 memory, and 864.0 GB/s bandwidth make it suitable for large-scale rendering, scientific simulation, and AI inference workloads that demand sustained memory access. The triple-slot design with a 295 W TDP and dual 8-pin power connectors indicates a workstation card built for maximum sustained performance. Its 94th percentile ranking, with an average benchmark score of 110,725, places it alongside professional GPUs like the NVIDIA Tesla V100 SXM2 16 GB (114,395, 3.2% ahead) and the NVIDIA RTX A5500 Mobile (113,944, 2.8% ahead), while leading the AMD Radeon Pro Vega II (109,617, 1% behind) and the AMD Radeon Pro W6600X (107,342, 3.2% behind).

The Radeon 8065S wins in power efficiency and portability. Its 55 W TDP is 81.4% lower than the PRO W7900's 295 W, and it requires no power connectors or external PSU. As an IGP on a 4 nm process, it integrates directly into a mobile platform. The 3000 MHz boost clock is the highest recorded between the two, and its PCIe 5.0 x16 interface provides future-proof host connectivity. The 8065S also uses the newer RDNA 3.5 architecture, which may include architectural refinements over RDNA 3.0, though the data does not specify those details.

For mobile users who need basic 3D acceleration, video decode, and light compute in a thin-and-light system, the 8065S is the appropriate part. For professionals who need maximum compute throughput, large dedicated memory pools, and workstation-grade display outputs, the PRO W7900 is the clear choice. The performance gap of 4x in FP32, combined with the memory capacity gap, leaves no ambiguity in the benchmark data.