AMD Radeon Pro 575X

The AMD Radeon Pro 575X is an end-of-life mobile graphics processor built on the GCN 4.0 architecture and fabricated on GlobalFoundries' 14 nm process. The Ellesmere chip integrates 5,700 million transistors across a 232 mm² die, yielding a transistor density of 24.6M per mm². Released on 2019-03-17, this part belongs to the Radeon Pro Mac (500X Series) generation, and benchmark data places it in the 83rd percentile of all GPUs, with an average benchmark score of 39,836.

Benchmark Performance

The average benchmark score of 39,836 places the Pro 575X in a remarkably tight competitive cluster. In Geekbench Metal, the card achieves 44,655 points, while its OpenCL score reaches 35,017, indicating significantly stronger driver optimization for Apple's Metal framework. The delta between these two scores is substantial—a 27.5% advantage for Metal—suggesting that the intended professional Mac workload is heavily skewed toward Metal-accelerated applications.

Against its nearest rivals, the margins are razor-thin. The Pro 575X trails the AMD Radeon RX Vega 64 by just 0.1%, making the two statistically indistinguishable in synthetic aggregate. It edges out the AMD Radeon Pro 575 by 0.3%, confirming this is a modest refresh rather than a generational leap. The lead expands slightly to 0.5% over the AMD Radeon RX 9070 XT and reaches 0.7% against the NVIDIA RTX A500 Mobile. These deltas are remarkably small, meaning the Pro 575X holds its own against much newer discrete parts in compute-oriented benchmarks.

The theoretical compute ceiling is set at 4.489 TFLOPS for both FP32 and FP16, with the latter running at a strict 1:1 ratio—no packed math acceleration is present. Pixel throughput reaches 35.07 GPixel/s, while texture fill rate hits 140.3 GTexel/s, driven by 2,048 shading units, 128 texture mapping units, and 32 render output units. The data shows that the Pro 575X is compute-bound in synthetic tests, with its performance profile closely matching that of the RX Vega 64 despite the latter's higher nominal positioning.

Ray Tracing and Feature Set

The Pro 575X includes no dedicated ray tracing cores and no tensor cores; the data explicitly records both as null. This means all graphics work is handled by the 2,048 shading units, 128 TMUs, and 32 ROPs. Without hardware RT acceleration, any ray-traced effects would fall back to compute shaders, which is inefficient on GCN 4.0 architecture. Similarly, the absence of tensor cores eliminates dedicated AI acceleration, restricting the card to traditional rasterization and compute workloads.

API support covers DirectX 12 (feature level 12_0), OpenGL 4.6, and Vulkan 1.3. This is a solid feature set for a 2019-era professional mobile GPU, but it lacks the modern hardware extensions found in contemporary parts. The 14 nm process node and 5,700 million transistor count define the physical limits of the chip, and the lack of RT or tensor hardware means the card cannot offload these specific tasks. For professional users reliant on Metal or OpenCL compute, the feature set is adequate, but for those expecting hardware-accelerated ray tracing or DLSS-style upscaling, the data clearly shows these capabilities are absent.

Memory Subsystem

The Pro 575X is equipped with 4 GB of GDDR5 memory on a 256-bit bus, delivering a bandwidth of 217.0 GB/s. The memory clock runs at 1695 MHz, translating to an effective data rate of 6.8 Gbps. This configuration provides a balanced throughput for its compute capacity, but the 4 GB capacity is a hard constraint at high resolutions or with large texture sets. The 256-bit bus width helps mitigate the modest 6.8 Gbps speed, yet the 217.0 GB/s ceiling is noticeably lower than higher-tier professional cards.

For a mobile IGP solution, this bandwidth is adequate for its target segment. The 4 GB frame buffer will likely bottleneck the GPU's compute potential in memory-heavy scenes, especially given the 4.489 TFLOPS compute rate. At 1080p, the memory subsystem is sufficient, but at 1440p or 4K, the capacity and bandwidth limits become apparent. The 256-bit bus is a strong point, but the overall memory configuration is clearly optimized for moderate resolutions rather than extreme high-end rendering.

Who Should Consider It

Given its 83rd percentile ranking and average score of 39,836, the Pro 575X is suited for users running professional Mac applications that leverage Metal or OpenCL. The Geekbench Metal score of 44,655 significantly outpaces the OpenCL score of 35,017, indicating that the card is best utilized within Apple's ecosystem. The 4 GB VRAM and 217.0 GB/s bandwidth suggest it is best paired with 1080p displays or 1440p at moderate settings. Users requiring hardware ray tracing or tensor core acceleration should look elsewhere, as this card has neither.

The 150 W TDP and IGP slot width imply it is a fixed component in a portable system, making it a non-upgradable option for specific MacBook Pro configurations. It is end-of-life, so new buyers should consider its age relative to modern workloads, but for legacy Mac software, the performance cluster is surprisingly competitive with newer discrete parts. The 0.3% lead over the Pro 575 confirms a slight upgrade for existing users, while the 0.7% lead over the RTX A500 Mobile shows it remains viable in compute benchmarks despite lacking modern features.

FAQ

Q: What is the average benchmark score for the AMD Radeon Pro 575X?

A: The average benchmark score is 39,836, placing it in the 83rd percentile of all GPUs.

Q: How does the Pro 575X compare to the AMD Radeon RX Vega 64?

A: It trails the RX Vega 64 by just 0.1% in average score, making the two statistically equivalent in synthetic benchmarks.

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

A: No, the data lists no RT cores and no tensor cores, so ray tracing would rely on compute shaders.

Q: What memory configuration does the Pro 575X use?

A: It uses 4 GB of GDDR5 on a 256-bit bus, delivering 217.0 GB/s bandwidth at 6.8 Gbps effective.

Q: What is the power draw and connector requirement?

A: The TDP is 150 W, and it uses no external power connectors, operating as an IGP.

Q: Which APIs are supported?

A: It supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3.

Power and Cooling

The Pro 575X has a thermal design power of 150 W. It requires no external power connectors, as it is classified with an IGP slot width, meaning power is delivered through the motherboard. The display outputs are listed as portable device dependent, reinforcing its mobile, integrated nature. The 14 nm manufacturing process from GlobalFoundries contributes to this power envelope. With no suggested PSU listed, the power delivery is entirely dictated by the host laptop. The 150 W TDP is moderate for a desktop part but notable for a mobile IGP, indicating robust cooling is necessary within the chassis. Given its end-of-life status, replacement parts or thermal solutions may be scarce.

How It Compares

AMD Radeon RX Vega 64: The Pro 575X trails the RX Vega 64 by a mere 0.1% in average benchmark score. Despite the Vega 64 being a high-end desktop part, the Pro 575X matches it in synthetic tests, likely due to driver optimizations in Metal.

AMD Radeon Pro 575: The Pro 575X is 0.3% faster than its direct predecessor, the Pro 575. This incremental gain confirms a modest refresh rather than a generational leap, with the same 4 GB memory configuration and 256-bit bus.

AMD Radeon RX 9070 XT: The Pro 575X leads the much newer RX 9070 XT by 0.5% in average score. This surprising result highlights the Pro 575X's strong showing in specific benchmark workloads, despite the massive architectural differences and the RX 9070 XT's modern feature set.

NVIDIA RTX A500 Mobile: The Pro 575X edges out the RTX A500 Mobile by 0.7%. While the A500 offers modern RT and tensor cores, the Pro 575X's raw compute in these specific tests holds a slight edge, underscoring that raw throughput does not always align with feature richness.