AMD Radeon Pro 575X vs AMD Radeon RX 6800 XT Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6800 XT records an average benchmark score of 48,477, while the AMD Radeon Pro 575X scores 39,116. The RX 6800 XT sits in the 85th percentile of all GPUs in the database, versus the 82nd percentile for the Pro 575X.

Q: How much faster is the RX 6800 XT in the Geekbench Metal test?

A: The RX 6800 XT scores 181,337 in Geekbench Metal, which is 306.1% higher than the Pro 575X's 44,655. This represents a more than fourfold performance gap in that particular workload.

Q: Does the Radeon Pro 575X support ray tracing?

A: No. The Pro 575X has no ray tracing cores listed in its specifications. The RX 6800 XT includes 72 ray tracing cores as part of its RDNA 2.0 architecture.

Q: What memory configurations do these two cards use?

A: The RX 6800 XT comes with 16 GB of GDDR6 memory on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The Pro 575X has 4 GB of GDDR5 memory on the same 256-bit bus width, but bandwidth is limited to 217.0 GB/s.

Q: Which card has the higher transistor density?

A: The RX 6800 XT, built on a 7 nm process, packs 51.5 million transistors per square millimeter. The Pro 575X, fabricated on a 14 nm process, has a density of 24.6 million transistors per square millimeter.

Q: Is the Pro 575X an integrated or discrete GPU?

A: The Pro 575X is listed with an IGP slot width, meaning it is designed as an integrated graphics processor for portable devices. Its display outputs are described as "Portable Device Dependent."

Architecture Differences

The architectural gap between these two AMD GPUs is substantial. The RX 6800 XT uses the Navi 21 chip with RDNA 2.0 architecture, manufactured on TSMC's 7 nm process. It integrates 26,800 million transistors on a 520 square millimeter die. In contrast, the Pro 575X uses the Ellesmere chip with GCN 4.0 architecture, built on GlobalFoundries' 14 nm node with 5,700 million transistors on a 232 square millimeter die.

The compute resources differ sharply. The RX 6800 XT has 4,608 shading units, 288 texture mapping units, and 128 render output units. The Pro 575X has 2,048 shading units, 128 TMUs, and only 32 ROPs. The RX 6800 XT also adds 72 dedicated ray tracing cores, a feature entirely absent from the Pro 575X.

Memory architecture shows a generational leap. The RX 6800 XT uses 16 GB of GDDR6 at 2000 MHz with 16 Gbps effective data rate, yielding 512.0 GB/s bandwidth. The Pro 575X uses 4 GB of GDDR5 at 1695 MHz with 6.8 Gbps effective rate, producing 217.0 GB/s. Both share a 256-bit bus width, but the newer memory technology gives the RX 6800 XT more than double the bandwidth.

Compute throughput figures illustrate the scale of difference. The RX 6800 XT delivers 20.74 TFLOPS of FP32 performance and 41.47 TFLOPS of FP16 with a 2:1 ratio. The Pro 575X manages 4.489 TFLOPS in both FP32 and FP16 at a 1:1 ratio. Pixel and texture rates follow the same pattern: 288.0 GPixel/s and 648.0 GTexel/s for the RX 6800 XT versus 35.07 GPixel/s and 140.3 GTexel/s for the Pro 575X.

The power envelopes differ significantly. The RX 6800 XT carries a 300 W TDP with dual-slot cooling and dual 8-pin power connectors, requiring a 700 W suggested PSU. The Pro 575X has a 150 W TDP with no dedicated power connectors, consistent with its integrated design. Interface support also diverges: PCIe 4.0 x16 for the RX 6800 XT versus PCIe 3.0 x16 for the Pro 575X.

API support shows the RX 6800 XT's newer architecture. It supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Pro 575X stops at DirectX 12 (12_0) and Vulkan 1.3. Both cards support OpenGL 4.6.

The Verdict

The recorded data presents a clear hierarchy. The RX 6800 XT wins all three head-to-head benchmark comparisons with decisive margins: 306.1% in Geekbench Metal, 392.6% in Geekbench OpenCL, and 261% in Geekbench Vulkan. It outperforms the Pro 575X in every measurable category where both have data.

For users choosing between these two, the decision hinges on workload requirements. The RX 6800 XT is suited for demanding 3D rendering, high-resolution gaming, and compute-heavy tasks that leverage its 16 GB memory, ray tracing hardware, and FP32 throughput exceeding 20 TFLOPS. Its 85th percentile ranking places it near the top of the database's GPU population.

The Pro 575X, with its 4 GB memory and 4.489 TFLOPS FP32 performance, targets integrated graphics scenarios in portable devices. Its 82nd percentile ranking is respectable but reflects a fundamentally different performance class. The Pro 575X's nearest rivals include the AMD Radeon Pro 580X and NVIDIA GeForce MX570 A, both within 1.1% of its average score. This indicates the Pro 575X sits at the upper edge of entry-level mobile graphics.

The RX 6800 XT's nearest rivals provide context for its positioning. It trails the NVIDIA GeForce RTX 5070 Ti by 3% and the AMD Radeon RX Vega 64 by 3%, while leading the NVIDIA RTX A1000 Mobile by 1.5%. This places it in competitive territory with contemporary mid-to-high-end GPUs rather than the entry-level segment where the Pro 575X operates.

Specification Differences

| Specification | AMD Radeon RX 6800 XT | AMD Radeon Pro 575X |

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

| Architecture | RDNA 2.0 | GCN 4.0 |

| Chip | Navi 21 | Ellesmere |

| Process Node | 7 nm | 14 nm |

| Foundry | TSMC | GlobalFoundries |

| Transistors | 26,800 million | 5,700 million |

| Die Size | 520 mm² | 232 mm² |

| Transistor Density | 51.5M / mm² | 24.6M / mm² |

| Memory Size | 16 GB | 4 GB |

| Memory Type | GDDR6 | GDDR5 |

| Memory Clock | 2000 MHz, 16 Gbps effective | 1695 MHz, 6.8 Gbps effective |

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

| Shading Units | 4608 | 2048 |

| TMUs | 288 | 128 |

| ROPs | 128 | 32 |

| Ray Tracing Cores | 72 | None |

| Pixel Rate | 288.0 GPixel/s | 35.07 GPixel/s |

| Texture Rate | 648.0 GTexel/s | 140.3 GTexel/s |

| FP32 Performance | 20.74 TFLOPS | 4.489 TFLOPS |

| FP16 Performance | 41.47 TFLOPS (2:1) | 4.489 TFLOPS (1:1) |

| TDP | 300 W | 150 W |

| Slot Width | Dual-slot | IGP |

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

| Suggested PSU | 700 W | Not specified |

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

| Display Outputs | 1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C | Portable Device Dependent |

| DirectX Support | 12 Ultimate (12_2) | 12 (12_0) |

| Vulkan Support | 1.4 | 1.3 |

| Release Date | 2020-10-27 | 2019-03-17 |

Head-to-Head Benchmarks

The three shared benchmark tests all fall in the RX 6800 XT's favor, but the magnitude varies significantly across workloads.

In Geekbench Metal, the RX 6800 XT records 181,337 points against the Pro 575X's 44,655. That translates to a 306.1% advantage. This is the closest of the three head-to-head results, yet still represents a dominant lead of over four times the score. Metal performance reflects the RX 6800 XT's newer architecture and substantially higher compute resources.

Geekbench OpenCL shows the largest gap. The RX 6800 XT scores 171,304, while the Pro 575X manages only 34,773. The delta reaches 392.6%, meaning the RX 6800 XT delivers nearly five times the OpenCL throughput. The Pro 575X's GCN architecture, despite being competent in its era, cannot compete with the RDNA 2.0 design's raw FP32 output of 20.74 TFLOPS versus 4.489 TFLOPS.

Geekbench Vulkan presents a 261% advantage for the RX 6800 XT, which scores 136,875 versus 37,919 for the Pro 575X. This workload benefits from the RX 6800 XT's Vulkan 1.4 support and larger memory pool, though the Pro 575X's Vulkan 1.3 support still allows for a valid comparison.

The aggregate numbers tell the same story. The RX 6800 XT's average benchmark score of 48,477 exceeds the Pro 575X's 39,116 by roughly 24%. The RX 6800 XT also holds a higher percentile ranking at 85 versus 82, indicating better standing relative to all GPUs in the database.

Looking at the broader competitive context, the RX 6800 XT's nearest rivals demonstrate its mid-to-high-end positioning. The NVIDIA RTX A1000 Mobile trails it by only 1.5%, while the Intel Arc A550M, NVIDIA GeForce RTX 5070 Ti, and AMD Radeon RX Vega 64 all lead it by 2.5% to 3%. The Pro 575X, meanwhile, trades places with the Radeon Pro 580X and NVIDIA GeForce MX570 A within 1.1%, and sits slightly behind the Radeon Pro 575 and NVIDIA RTX A500 Mobile by the same margin.

The wins tally is decisive: three wins for the RX 6800 XT and zero for the Pro 575X across all head-to-head benchmarks that both cards completed. No recorded test shows the Pro 575X ahead in any shared workload. The performance hierarchy in the database is unambiguous.