AMD Radeon Pro 5600M vs AMD Radeon RX 7900 XT Comparison

Head-to-Head Benchmarks

The head-to-head data presents an unusual split. The AMD Radeon Pro 5600M wins exactly one of the nine shared tests, while the AMD Radeon RX 7900 XT claims the remaining eight. The single victory for the Pro 5600M is decisive, but the nature of that win requires careful interpretation.

In Geekbench OpenCL, the Pro 5600M scores 47783 against 12756 for the RX 7900 XT, a 274.6% advantage. This is a remarkable outlier. OpenCL workloads on the Pro 5600M appear to be heavily optimized, possibly reflecting its intended use in professional Mac environments where OpenCL was a primary compute interface. The RX 7900 XT's much lower OpenCL score suggests that its driver stack prioritizes other APIs, or that the test itself does not align with its architecture. This single result drags the Pro 5600M's average benchmark score upward, making its aggregate statistics misleading.

Every other head-to-head test favors the RX 7900 XT, and the margins are consistently large. In Geekbench Vulkan, the RX 7900 XT scores 71068 versus 46425, a 34.7% lead. This is notable because Vulkan is a cross-platform, low-level API that tends to scale with raw hardware resources. The RX 7900 XT's advantage here is substantial but not as overwhelming as in the DirectX and compute tests.

The Passmark suite shows a clear pattern of dominance. In DirectX 10, the RX 7900 XT scores 158 against 62, a 60.8% margin. DirectX 11 shows 340 versus 59, an 82.6% gap. DirectX 12 shows 110 versus 39, a 64.5% margin. DirectX 9 shows 322 versus 118, a 63.4% gap. The RX 7900 XT leads by similar proportions in 2D and 3D workloads: Passmark G2D shows 1232 versus 679, a 44.9% margin, and Passmark G3D shows 29009 versus 9279, a 68% lead. The compute-focused Passmark GPU Compute test shows 16828 versus 4031, a 76% gap.

The pattern is clear. The RX 7900 XT is faster across virtually every modern workload category, with the sole exception being this specific OpenCL benchmark where the Pro 5600M's architecture or drivers produce an anomalous result. The data suggests that the Pro 5600M's OpenCL score should be treated as an outlier rather than a representative measure of its overall capability.

Architecture Differences

The two GPUs belong to different generations of AMD's RDNA architecture. The Pro 5600M uses Navi 12 on RDNA 1.0, manufactured on a 7 nm process at TSMC. The RX 7900 XT uses Navi 31 on RDNA 3.0, also from TSMC but on a 5 nm process. This process shrink is significant, but the architectural changes are even more consequential.

The RX 7900 XT's chip is substantially larger and more complex. It contains 57,700 million transistors on a 529 mm² die, with a transistor density of 109.1M per mm². The Pro 5600M's transistor count and die size are not recorded in the database, but the architecture generation difference alone implies a major gap in capability.

Memory configurations differ fundamentally. The Pro 5600M uses 8 GB of HBM2 with a 2048-bit bus and 394.2 GB/s of bandwidth. The RX 7900 XT uses 20 GB of GDDR6 with a 320-bit bus and 800.0 GB/s of bandwidth. The RX 7900 XT has more than double the bandwidth and 2.5 times the memory capacity. The HBM2 on the Pro 5600M offers a wider bus but lower total bandwidth, reflecting its older generation and more power-constrained design.

The RX 7900 XT also has dedicated ray tracing cores, with 84 RT cores present. The Pro 5600M has no RT cores recorded. This is a generation-defining difference: RDNA 3.0 includes hardware ray tracing support, while RDNA 1.0 does not. For any workload involving ray tracing, the RX 7900 XT has a structural advantage that no driver optimization can overcome.

Clock speeds tell a similar story. The Pro 5600M runs at a base of 822 MHz and a boost of 1144 MHz. The RX 7900 XT runs at 1387 MHz base and 2394 MHz boost, with a game clock of 2025 MHz. The RX 7900 XT's boost clock is more than double the Pro 5600M's base clock. Memory clocks differ as well: the Pro 5600M runs at 770 MHz with 1540 Mbps effective, while the RX 7900 XT runs at 2500 MHz with 20 Gbps effective.

The RX 7900 XT's compute resources are vastly larger. It has 5376 shading units, 336 texture mapping units, and 192 render output units. The Pro 5600M has 2560 shading units, 160 TMUs, and 64 ROPs. The RX 7900 XT has more than double the shading units and triple the ROPs. This translates directly to throughput: the RX 7900 XT's FP32 performance is 51.48 TFLOPS versus 5.857 TFLOPS for the Pro 5600M. Even accounting for the 2:1 FP16 ratio on both, the RX 7900 XT delivers 103.0 TFLOPS FP16 versus 11.71 TFLOPS.

The API support also differs. The Pro 5600M supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The RX 7900 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The newer DirectX 12 Ultimate feature set on the RX 7900 XT includes ray tracing and mesh shaders, which the Pro 5600M cannot access.

FAQ

Q: Why does the AMD Radeon Pro 5600M win the Geekbench OpenCL test by such a large margin?

A: The Pro 5600M scores 47783 in Geekbench OpenCL versus 12756 for the RX 7900 XT, a 274.6% difference. This is the only head-to-head test the Pro 5600M wins. The data indicates that this specific workload is not representative of overall performance. The RX 7900 XT wins all other head-to-head tests, including Vulkan, DirectX, and compute workloads, so the OpenCL result likely reflects driver or API optimization specific to the Pro 5600M's intended professional use case.

Q: Which GPU has more memory bandwidth?

A: The RX 7900 XT has 800.0 GB/s of bandwidth, while the Pro 5600M has 394.2 GB/s. This is more than double the bandwidth, despite the Pro 5600M using HBM2 memory with a wider 2048-bit bus. The RX 7900 XT uses GDDR6 on a 320-bit bus but achieves higher bandwidth through much faster memory clocks.

Q: Does the RX 7900 XT support ray tracing?

A: Yes. The RX 7900 XT has 84 dedicated ray tracing cores. The Pro 5600M has no ray tracing cores recorded in the database. This is a fundamental architectural difference between RDNA 3.0 and RDNA 1.0.

Q: What is the power consumption difference?

A: The Pro 5600M has a TDP of 50 W and uses no power connectors, being an integrated GPU package. The RX 7900 XT has a TDP of 300 W and requires two 8-pin power connectors with a suggested PSU of 700 W. The RX 7900 XT consumes six times the power of the Pro 5600M.

Q: How do their average benchmark scores compare?

A: The Pro 5600M has an average benchmark score of 16351, while the RX 7900 XT has an average of 13745. However, this aggregate figure is skewed by the Pro 5600M's anomalous OpenCL score. In head-to-head tests where both GPUs run the same workloads, the RX 7900 XT wins 8 out of 9 tests, often by large margins.

Q: Which GPU is newer?

A: The RX 7900 XT was released on 2022-11-02, while the Pro 5600M was released on 2020-06-14. Both are now listed as end-of-life in the database.

The Verdict

The data supports a clear conclusion. The AMD Radeon RX 7900 XT is the superior GPU by a wide margin in almost every measurable way. It wins 8 of 9 head-to-head tests, with margins ranging from 34.7% in Vulkan to 82.6% in DirectX 11. Its architectural advantages are overwhelming: more shading units, more ROPs, dedicated ray tracing cores, more memory, and more bandwidth. The RX 7900 XT's FP32 throughput of 51.48 TFLOPS is nearly nine times the Pro 5600M's 5.857 TFLOPS.

The Pro 5600M's single OpenCL victory is an outlier. A 274.6% lead in one test cannot compensate for losses in every other test, particularly when those losses are consistently large. The Pro 5600M's average benchmark score of 16351 is misleading because it is inflated by this one result. Its percentile rank of 59 among all GPUs, compared to 55 for the RX 7900 XT, reflects the same distortion.

The Pro 5600M is a 50 W integrated GPU designed for portable devices. The RX 7900 XT is a 300 W dual-slot desktop GPU requiring a 700 W PSU. These are different product categories with different purposes. The RX 7900 XT is designed for high-performance gaming and compute, while the Pro 5600M is designed for efficient operation within a Mac laptop or similar portable platform.

For anyone building a desktop system or needing maximum performance, the RX 7900 XT is the clear choice. For anyone constrained to a portable Mac environment, the Pro 5600M is the only option among these two, but its performance is dramatically lower.

Specification Differences

| Specification | AMD Radeon Pro 5600M | AMD Radeon RX 7900 XT |

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

| Architecture | RDNA 1.0 | RDNA 3.0 |

| Process Node | 7 nm | 5 nm |

| Transistors | Not recorded | 57,700 million |

| Die Size | Not recorded | 529 mm² |

| Base Clock | 822 MHz | 1387 MHz |

| Boost Clock | 1144 MHz | 2394 MHz |

| Game Clock | Not specified | 2025 MHz |

| Memory Size | 8 GB | 20 GB |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus | 2048 bit | 320 bit |

| Memory Bandwidth | 394.2 GB/s | 800.0 GB/s |

| Shading Units | 2560 | 5376 |

| TMUs | 160 | 336 |

| ROPs | 64 | 192 |

| RT Cores | None | 84 |

| FP32 | 5.857 TFLOPS | 51.48 TFLOPS |

| FP16 | 11.71 TFLOPS | 103.0 TFLOPS |

| TDP | 50 W | 300 W |

| Slot Width | IGP | Dual-slot |

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

| Suggested PSU | Not specified | 700 W |

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

| Vulkan | 1.3 | 1.4 |

| Release Date | 2020-06-14 | 2022-11-02 |

| Launch MSRP | Not specified | 899 USD |

Where Each One Wins

The RX 7900 XT wins in every head-to-head category except one. Its strongest margins come in DirectX 11 (82.6% lead) and GPU compute (76% lead), followed by DirectX 12 (64.5%), DirectX 9 (63.4%), and DirectX 10 (60.8%). It also leads in Vulkan by 34.7%, in G3D by 68%, and in G2D by 44.9%. These results span legacy and modern APIs, 2D and 3D workloads, and compute tasks. The RX 7900 XT is the appropriate choice for gaming, ray tracing, content creation, and general-purpose compute.

The Pro 5600M wins only in Geekbench OpenCL. This single result suggests that its driver stack or hardware design is specifically tuned for OpenCL compute in a Mac environment. For workloads that rely heavily on OpenCL, such as certain professional rendering or scientific computing tasks on macOS, the Pro 5600M may perform better than its other benchmark scores would suggest. However, this is a narrow niche.

The RX 7900 XT also wins in architectural features that benchmarks may not fully capture. It supports DirectX 12 Ultimate, has dedicated ray tracing cores, and offers Vulkan 1.4 support. Its 20 GB memory capacity is 2.5 times the Pro 5600M's 8 GB, which matters for large datasets and high-resolution textures. Its bandwidth advantage of 800.0 GB/s versus 394.2 GB/s means it can feed its compute units more effectively.

The Pro 5600M's advantages are purely practical. At 50 W with no power connectors, it can fit into integrated form factors. Its 2048-bit memory bus is wider but its overall bandwidth is lower. Its IGP slot width means it requires no additional cooling or power infrastructure. The RX 7900 XT, by contrast, requires a dual-slot footprint, two 8-pin connectors, and a 700 W PSU.

For portable devices, the Pro 5600M is the only viable option of these two. For desktop systems, the RX 7900 XT is the only sensible choice. The data shows no scenario where the RX 7900 XT's performance disadvantages are outweighed by the Pro 5600M's efficiency, except in the narrow OpenCL workload where the Pro 5600M's score is anomalously high.