AMD Radeon Pro 575X vs NVIDIA GeForce RTX 4080 Comparison

Head-to-Head Benchmarks

The recorded data shows the NVIDIA GeForce RTX 4080 and AMD Radeon Pro 575X are not competing in the same performance class, and the benchmark results make that distinction unambiguous. Across the two shared tests in the database, the RTX 4080 takes both wins with margins that are not merely large but transformative.

In Geekbench OpenCL, the RTX 4080 scores 214,739 against the Radeon Pro 575X's 34,773. That is a delta of 517.5%, meaning the NVIDIA card delivers roughly five times the raw compute throughput in this compute API. The OpenCL test is heavily dependent on raw FP32 throughput, and the specification data confirms why the gap is so lopsided. The RTX 4080 delivers 48.74 TFLOPS FP32 compute on paper, while the Radeon Pro 575X manages 4.489 TFLOPS. Roughly speaking, the RTX 4080 offers about ten times the theoretical FP32 rate, which aligns with the order of magnitude seen in the measured results.

The second shared benchmark, Geekbench Vulkan, shows an even steeper gap. The RTX 4080 posts 263,779 versus 37,919 for the Radeon Pro 575X, a delta of 595.6%. Vulkan results often reward geometry throughput, memory bandwidth, and driver efficiency in addition to raw shading power. The RTX 4080's texture rate is 761.5 GTexel/s compared to 140.3 GTexel/s, and its pixel rate is 280.6 GPixel/s versus 35.07 GPixel/s. Those differences compound at higher resolutions and with more complex scenes, which is why the Vulkan margin is even wider than OpenCL. The Radeon Pro 575X is not a slow card in absolute terms, but the RTX 4080's architecture, launched into a completely different market segment, simply overwhelms it.

The Radeon Pro 575X has a separate Geekbench Metal score of 44,655, but the RTX 4080 has no corresponding Metal benchmark in the database, so no direct comparison is possible there. The average benchmark score field tells the broader story: the RTX 4080 averages 54,247 across its recorded tests, while the Radeon Pro 575X averages 39,116. That average includes tests not shared between the two cards, but the gap is consistent with the shared-test results. The RTX 4080 also sits at the 86th percentile among all GPUs in the database, while the Radeon Pro 575X sits at the 82nd percentile. Those percentiles are closer than the raw scores might suggest, which indicates that the Radeon Pro 575X holds its own relative to the wider GPU population, but the head-to-head comparison is dominated by the RTX 4080's far higher absolute performance.

The Verdict

The data does not support a nuanced recommendation here. Anyone comparing these two cards for the same task should pick the NVIDIA GeForce RTX 4080, provided the workload uses the APIs where both have results. In OpenCL and Vulkan, the RTX 4080 leads by 517.5% and 595.6% respectively. Those are not marginal wins; they are generational and segment-level gaps. The RTX 4080's nearest rivals in the database include the RTX 4080 SUPER (0.1% higher average score) and the AMD Radeon RX 6750 GRE 12 GB (2.6% lower average score), placing it firmly among high-end desktop cards. The Radeon Pro 575X's nearest rivals, by contrast, include the AMD Radeon Pro 580X (1.1% higher) and the NVIDIA GeForce MX570 A (1.1% higher), placing it in entry-level or mobile-class territory.

For the Radeon Pro 575X, the case is different. It is an integrated GPU (the slot width is listed as IGP) from the Radeon Pro Mac series, designed for portable Mac systems. Its power draw is 150 W, it has no power connectors, and its display outputs are listed as portable-device dependent. The RTX 4080 is a triple-slot desktop card requiring a 700 W suggested PSU and a 16-pin connector. These are not interchangeable products. The Radeon Pro 575X makes sense only in the context of a Mac portable system where the RTX 4080 cannot physically be installed. If the choice is between these two for a desktop workstation, the RTX 4080 wins without qualification. If the choice is constrained to a Mac portable form factor, the Radeon Pro 575X is the only one of the two that fits, and its Metal score of 44,655 suggests it can handle light to moderate graphics work in that ecosystem.

Architecture Differences

The architectural gulf between these two cards is as wide as the benchmark gap. The NVIDIA GeForce RTX 4080 uses the AD103 chip built on Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. It integrates 45,900 million transistors on a 379 mm² die, giving a transistor density of 121.1M per mm². The AMD Radeon Pro 575X uses the Ellesmere chip on GCN 4.0 architecture, built by GlobalFoundries on a 14 nm process. It packs 5,700 million transistors on a 232 mm² die, for a density of 24.6M per mm². The RTX 4080 not only has more transistors, it has them packed more than four times as densely.

The compute resources tell the same story. The RTX 4080 has 9,728 shading units, 304 texture mapping units, 112 ROPs, 76 ray tracing cores, and 304 tensor cores. The Radeon Pro 575X has 2,048 shading units, 128 TMUs, and 32 ROPs, with no ray tracing cores and no tensor cores at all. The RTX 4080's FP32 throughput is 48.74 TFLOPS, and its FP16 throughput is also 48.74 TFLOPS at a 1:1 ratio. The Radeon Pro 575X manages 4.489 TFLOPS in both FP32 and FP16, also at 1:1, but that is a fraction of the NVIDIA card's output. The RTX 4080 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Radeon Pro 575X supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The feature-level gap in DirectX alone is significant, as 12_2 includes hardware ray tracing and mesh shaders, neither of which the GCN 4.0 architecture can provide.

Memory architecture also differs sharply. The RTX 4080 has 16 GB of GDDR6X on a 256-bit bus, with 716.8 GB/s of bandwidth and an effective memory speed of 22.4 Gbps. The Radeon Pro 575X has 4 GB of GDDR5 on a 256-bit bus, with 217.0 GB/s of bandwidth and an effective speed of 6.8 Gbps. The bus width is identical, but the memory type and speed create a 3.3-to-1 bandwidth advantage for the RTX 4080. That bandwidth gap matters for high-resolution textures, compute workloads, and any task that streams large datasets through the GPU.

FAQ

Q: Which card is faster in Geekbench OpenCL?

A: The NVIDIA GeForce RTX 4080 scores 214,739 versus 34,773 for the AMD Radeon Pro 575X, a 517.5% advantage.

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

A: No. The Radeon Pro 575X has no ray tracing cores listed in the database, while the RTX 4080 has 76 RT cores and supports DirectX 12 Ultimate (12_2), which includes hardware ray tracing features.

Q: What is the memory bandwidth difference?

A: The RTX 4080 offers 716.8 GB/s over a 256-bit GDDR6X interface, while the Radeon Pro 575X offers 217.0 GB/s over a 256-bit GDDR5 interface. The RTX 4080 has more than triple the bandwidth.

Q: How do their average benchmark scores compare?

A: The RTX 4080 averages 54,247 across its recorded tests, while the Radeon Pro 575X averages 39,116. The RTX 4080 sits at the 86th percentile among all GPUs, and the Radeon Pro 575X sits at the 82nd percentile.

Q: What form factors do these cards use?

A: The RTX 4080 is a triple-slot desktop card with a 16-pin power connector and a suggested 700 W PSU. The Radeon Pro 575X is listed as an IGP (integrated graphics processor) with no power connectors and portable-device-dependent display outputs.

Q: Can the Radeon Pro 575X run Vulkan workloads?

A: Yes, it supports Vulkan 1.3, but its Geekbench Vulkan score of 37,919 is far below the RTX 4080's 263,779, a 595.6% deficit.

Where Each One Wins

The NVIDIA GeForce RTX 4080 wins every shared benchmark in the database, and it wins by margins that define product categories rather than individual SKUs. Its strengths are most apparent in compute-heavy workloads: the OpenCL result of 214,739 versus 34,773 demonstrates a 517.5% lead in raw compute throughput, which translates directly to rendering, simulation, and GPU-accelerated productivity tasks. Its Vulkan result of 263,779 versus 37,919, a 595.6% lead, shows that gaming and real-time graphics workloads also fall decisively in its favor. The RTX 4080's 16 GB of GDDR6X memory at 716.8 GB/s, its 76 RT cores, and its 304 tensor cores give it capabilities the Radeon Pro 575X does not have at any performance level. For anyone building a desktop workstation or gaming system, the RTX 4080 is the only rational choice between these two.

The AMD Radeon Pro 575X wins only in contexts where the RTX 4080 cannot exist. It is an IGP with a 150 W TDP, no power connectors, and no standalone dimensions, designed for portable Mac systems. Its Geekbench Metal score of 44,655 indicates it has some utility in Apple's ecosystem, though the RTX 4080 has no Metal benchmark in the database for comparison. The Radeon Pro 575X is also the lower-power option by a wide margin: 150 W versus 320 W, which matters in thermally constrained portable chassis. Its nearest rivals in the database, the AMD Radeon Pro 580X and NVIDIA GeForce MX570 A, are both within 1.1% of its average score, confirming it sits in a modest performance tier. For users who need a discrete GPU in a Mac portable, the Radeon Pro 575X is the applicable product. For every other use case, the data points unambiguously to the RTX 4080.

Specification Differences

The two cards differ in nearly every measurable specification. The RTX 4080 uses the AD103 chip on Ada Lovelace architecture, while the Radeon Pro 575X uses Ellesmere on GCN 4.0. The process node is 5 nm for the RTX 4080 and 14 nm for the Radeon Pro 575X. Transistor counts are 45,900 million versus 5,700 million, and die sizes are 379 mm² versus 232 mm². The RTX 4080 has 9,728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores; the Radeon Pro 575X has 2,048 shading units, 128 TMUs, and 32 ROPs, with no RT or tensor cores. FP32 and FP16 throughput are 48.74 TFLOPS for the RTX 4080 and 4.489 TFLOPS for the Radeon Pro 575X. The RTX 4080's pixel rate is 280.6 GPixel/s and texture rate is 761.5 GTexel/s, versus 35.07 GPixel/s and 140.3 GTexel/s for the Radeon Pro 575X.

Memory differs in size, type, and bandwidth: 16 GB of GDDR6X at 716.8 GB/s for the RTX 4080, versus 4 GB of GDDR5 at 217.0 GB/s for the Radeon Pro 575X. The RTX 4080 has a 5 nm TSMC process, a triple-slot form factor, a 16-pin power connector, a 700 W suggested PSU, and PCIe 4.0 x16. The Radeon Pro 575X is an IGP with no power connectors, no suggested PSU, and PCIe 3.0 x16. Display outputs are 1x HDMI 2.1 and 3x DisplayPort 1.4a on the RTX 4080, versus portable-device-dependent outputs on the Radeon Pro 575X. API support favors the RTX 4080 with DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Radeon Pro 575X supports DirectX 12 (12_0) and Vulkan 1.3. Both support OpenGL 4.6. The RTX 4080 has a listed launch MSRP of 1,199 USD; the Radeon Pro 575X has no launch MSRP in the database. The released dates are separated by roughly three years apart, with the Radeon Pro 575X appearing in March 2019 and the RTX 4080 in September 2022, and both are now marked end-of-life.