AMD Radeon Pro 580X vs NVIDIA GeForce RTX 5080 Mobile Comparison

# AMD Radeon Pro 580X vs NVIDIA GeForce RTX 5080 Mobile

The data in this comparison is decisively one-sided on raw compute performance, but the story is more nuanced when you consider the target platforms and workloads. The AMD Radeon Pro 580X is an end-of-life integrated GPU from 2019 built for Apple MPX systems, while the NVIDIA GeForce RTX 5080 Mobile is an active 2025 laptop part with Blackwell architecture. Their average benchmark scores are nearly identical—38,706 for the AMD and 38,349 for the NVIDIA—a difference of just 0.9%, which places them as direct rivals in this database's percentile rankings. However, that aggregate similarity masks enormous gaps in specific workloads. The Radeon Pro 580X sits at the 82nd percentile of all GPUs, while the RTX 5080 Mobile sits at the 81st, so neither has a meaningful overall ranking advantage.

Head-to-Head Benchmarks

The only true head-to-head tests available are Geekbench OpenCL and Vulkan, and the NVIDIA card wins both by a massive margin. In Geekbench OpenCL, the RTX 5080 Mobile scores 166,986 against the Radeon Pro 580X's 36,426—a delta of -78.2%, meaning the AMD card delivers less than a quarter of the NVIDIA's compute throughput in that test. The Vulkan result is similarly lopsided: 169,754 for the NVIDIA versus 40,115 for the AMD, a -76.4% difference. These are not marginal wins; they represent a generational leap in raw execution capability. The Radeon Pro 580X's best showing in any single benchmark is its Geekbench Vulkan score of 40,115, which still falls short of the RTX 5080 Mobile's worst major compute result in the same test by a factor of four.

Looking at the broader benchmark suite, the RTX 5080 Mobile also posts strong numbers in DirectX and compute tests that the AMD card simply does not have data for. The NVIDIA part scores 27,711 in Passmark G3D, 12,134 in Passmark GPU Compute, and 4952 in 3DMark Steel Nomad DX12. The Radeon Pro 580X has no comparable results in those specific tests, so the head-to-head data is limited to the two Geekbench workloads. That limitation is itself informative: the AMD card's benchmark profile is thin, reflecting its niche role in Apple's ecosystem rather than broad gaming or compute validation. The NVIDIA card's Passmark DirectX results—171 in DX10, 253 in DX11, 116 in DX12, and 314 in DX9—show a wider range of legacy API support, though these low scores are typical for a Passmark subtest that scales differently than full GPUs.

Where Each One Wins

The Radeon Pro 580X wins in exactly zero head-to-head benchmarks—the data shows no test where it outperforms the RTX 5080 Mobile. Its only claims to relevance come from its specific deployment context. As an IGP with an Apple MPX bus interface and two HDMI 2.0b outputs, it is designed for Mac Pro systems where driver support and macOS integration matter more than raw throughput. The 8 GB GDDR5 memory and 218.9 GB/s bandwidth are adequate for professional display workloads, but they pale next to the NVIDIA's 16 GB GDDR7 and 896.0 GB/s. The RTX 5080 Mobile wins in every measurable compute scenario, from OpenCL to Vulkan, and it adds features the AMD card lacks entirely: 60 ray tracing cores, 240 tensor cores, and DirectX 12 Ultimate support.

Where the NVIDIA card does not "win" is in power efficiency—but even there, the numbers favor it. The RTX 5080 Mobile is rated at 80 W TDP versus the Radeon Pro 580X's 185 W, so it delivers more than four times the FP32 throughput (23.04 TFLOPS vs 5.530 TFLOPS) while drawing less than half the power. For a laptop part, that efficiency is the entire point. The AMD card, by contrast, is a desktop IGP with a 185 W budget, which explains its higher power draw but does not excuse its performance deficit. The RTX 5080 Mobile also has no power connectors and relies on PCIe 5.0 x16, whereas the AMD uses the proprietary Apple MPX bus—so the two are not even physically interchangeable.

Architecture Differences

The architectural gap here is cavernous. The Radeon Pro 580X uses GCN 4.0 on a 14 nm GlobalFoundries process with 5,700 million transistors on a 232 mm² die. The RTX 5080 Mobile uses Blackwell 2.0 on a 5 nm TSMC process with 45,600 million transistors on a 378 mm² die. That is an 8x increase in transistor count and a 4.9x increase in transistor density (120.6M / mm² vs 24.6M / mm²). The AMD chip, codenamed Ellesmere, is from the Radeon Pro Mac 500X series, a 2019-era design. The NVIDIA chip, GB203, is from the GeForce 50 Mobile series, released in 2025. The process node difference alone—14 nm vs 5 nm—explains much of the performance gap, but the architectures are also fundamentally different in design philosophy.

GCN 4.0 is a scalar-plus-vector architecture without dedicated ray tracing or tensor hardware. Blackwell 2.0 includes 60 RT cores and 240 tensor cores, enabling hardware-accelerated ray tracing and AI workloads that the AMD card cannot handle at all. The Radeon Pro 580X also lacks any equivalent to NVIDIA's DLSS or AI upscaling features, which rely on tensor cores. In terms of API support, the AMD card tops out at DirectX 12 (12_0) and Vulkan 1.3, while the NVIDIA card supports DirectX 12 Ultimate (12_2) and Vulkan 1.4. The NVIDIA also has a 1:1 FP16 to FP32 ratio at 23.04 TFLOPS, matching its FP32 output; the AMD also has a 1:1 ratio but at 5.530 TFLOPS. Both support OpenGL 4.6, but the NVIDIA's newer Vulkan version suggests better forward compatibility.

Specification Differences

The memory subsystem is the most dramatic specification gap. The Radeon Pro 580X has 8 GB GDDR5 on a 256-bit bus with 218.9 GB/s bandwidth. The RTX 5080 Mobile has 16 GB GDDR7 on a 256-bit bus with 896.0 GB/s—a 4.1x bandwidth advantage. Clock speeds differ as well: the AMD runs at 1100 MHz base and 1200 MHz boost, while the NVIDIA runs lower at 975 MHz base but boosts to 1500 MHz. The NVIDIA's memory clock is 1750 MHz with 28 Gbps effective, versus the AMD's 1710 MHz with 6.8 Gbps effective—so the GDDR7 memory operates at roughly four times the effective data rate. Shader resources are also far apart: the AMD has 2304 shading units, 144 TMUs, and 32 ROPs; the NVIDIA has 7680 shading units, 240 TMUs, and 96 ROPs. Pixel rate is 38.40 GPixel/s for the AMD versus 144.0 GPixel/s for the NVIDIA, and texture rate is 172.8 GTexel/s versus 360.0 GTexel/s.

The form factor and connectivity differ completely. The Radeon Pro 580X is an IGP with an Apple MPX bus interface and two HDMI 2.0b outputs. The RTX 5080 Mobile is also an IGP but uses PCIe 5.0 x16 and has display outputs that are "Portable Device Dependent," meaning laptop manufacturers decide the ports. The AMD has no power connectors listed; the NVIDIA explicitly has "None" for power connectors, relying on the motherboard's power delivery. The TDP difference—185 W for the AMD vs 80 W for the NVIDIA—is stark and directly impacts where each can be used. The AMD's production status is end-of-life, while the NVIDIA is active. Release dates are March 2019 for the AMD and April 2025 for the NVIDIA. Neither has a launch MSRP in the data, so no price comparison is possible.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro 580X averages 38,706 across its benchmarks, while the NVIDIA GeForce RTX 5080 Mobile averages 38,349. The AMD is 0.9% higher, and the NVIDIA's nearest rival delta shows it at -0.9% relative to the AMD.

Q: How much faster is the RTX 5080 Mobile in Geekbench OpenCL?

A: The NVIDIA scores 166,986 versus the AMD's 36,426, a -78.2% delta for the AMD. This means the AMD delivers only about 21.8% of the NVIDIA's OpenCL performance.

Q: Does the Radeon Pro 580X support ray tracing?

A: No. The Radeon Pro 580X has no RT cores in its GCN 4.0 architecture. The RTX 5080 Mobile includes 60 RT cores and 240 tensor cores, enabling hardware ray tracing and AI workloads.

Q: What is the memory bandwidth difference?

A: The AMD has 218.9 GB/s from 8 GB GDDR5, while the NVIDIA has 896.0 GB/s from 16 GB GDDR7. The NVIDIA's bandwidth is roughly 4.1 times higher on the same 256-bit bus width.

Q: Which GPU is more power-efficient?

A: The RTX 5080 Mobile is rated at 80 W TDP and delivers 23.04 TFLOPS FP32, while the Radeon Pro 580X is rated at 185 W and delivers 5.530 TFLOPS. The NVIDIA produces about 4.2 times the FP32 throughput at under half the power draw.

Q: Are these GPUs compatible with the same systems?

A: No. The Radeon Pro 580X uses an Apple MPX bus interface and two HDMI 2.0b outputs, targeting Mac Pro systems. The RTX 5080 Mobile uses PCIe 5.0 x16 and has portable-device-dependent outputs, targeting Windows laptops.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 5080 Mobile is the superior performer in every head-to-head test available. It wins both Geekbench OpenCL and Vulkan by margins of 78.2% and 76.4%, respectively, and it does so while consuming 80 W versus the AMD's 185 W. Its 16 GB GDDR7 memory, 23.04 TFLOPS FP32, and dedicated RT/tensor cores put it in a different class entirely. The Radeon Pro 580X's only statistical advantage is its 0.9% higher average benchmark score, which comes from having fewer, lower-scoring tests in its profile—not from any actual performance win. Anyone choosing the AMD card for compute-heavy work would be making a mistake based on the numbers.

However, the Radeon Pro 580X is not without a use case. Its Apple MPX interface and dual HDMI 2.0b outputs make it a drop-in solution for older Mac Pro systems where NVIDIA drivers are not supported. Its 8 GB GDDR5 and 5.530 TFLOPS are sufficient for display output and light professional tasks, and its end-of-life status means it may be available cheaply in the used market. But the data shows no scenario where it outperforms the RTX 5080 Mobile. The NVIDIA card is the pick for anyone who needs raw compute, modern API support, ray tracing, or AI features in a mobile form factor. The AMD card is only sensible if you are locked into a legacy Apple platform and cannot use a PCIe-based alternative. For all other buyers, the RTX 5080 Mobile is the clear recommendation from the benchmark results.