AMD Radeon RX 560 XT vs NVIDIA GeForce RTX 4090 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the NVIDIA GeForce RTX 4090 Mobile and the AMD Radeon RX 560 XT. In the two shared benchmark tests, the RTX 4090 Mobile wins outright, with no test favoring the RX 560 XT. The most dramatic separation occurs in Geekbench OpenCL, where the RTX 4090 Mobile scores 180,831 compared to the RX 560 XT's 31,387. That is a delta of 476.1%, meaning the NVIDIA part delivers nearly five times the raw compute throughput in this workload. The margin is slightly narrower in Geekbench Vulkan, but still overwhelming: 170,774 versus 36,879, a 363.1% advantage for the RTX 4090 Mobile.

These are not subtle differences. The RTX 4090 Mobile's average benchmark score across all recorded tests is 43,667, placing it in the 84th percentile of all GPUs in the database. The RX 560 XT, by contrast, averages 34,133 and sits in the 79th percentile. While the percentile gap is modest, the head-to-head deltas reveal the true nature of the matchup: the RTX 4090 Mobile is in a completely different performance class. Its nearest rivals in the database, the NVIDIA Quadro M6000 (43,301 average score) and the RTX A6000 (44,075), are within roughly 1% of its average, confirming that the RTX 4090 Mobile competes at the workstation flagship tier, not against entry-level Polaris parts.

The RX 560 XT's nearest rivals, meanwhile, are the NVIDIA RTX A2000 12 GB (34,154), RTX A1000 (34,207), AMD Radeon RX 480 (33,997), and AMD Radeon HD 7950 (33,951). All of these sit within a 0.5% band of the RX 560 XT's average score, which suggests that the RX 560 XT is a competent mid-range performer from its era, but it simply cannot match the architectural and generational leap embodied by the RTX 4090 Mobile. The data does not support any scenario where the RX 560 XT wins a direct comparison; the delta percentages are so lopsided that they define the entire narrative of this head-to-head.

Architecture Differences

The underlying designs of these two GPUs could hardly be more different. The NVIDIA GeForce RTX 4090 Mobile is built on the AD103 chip using the Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It packs 45,900 million transistors into a 379 mm² die, yielding a transistor density of 121.1 million per square millimeter. The AMD Radeon RX 560 XT, in contrast, uses the Ellesmere chip based on the older GCN 4.0 architecture, built on a 14 nm process at GlobalFoundries. Its transistor count is 5,700 million on a 232 mm² die, for a density of just 24.6 million per square millimeter. The process node advantage alone explains a large portion of the performance gap: the RTX 4090 Mobile crams nearly eight times more transistors into a die that is only about 63% larger.

The compute resources are similarly mismatched. The RTX 4090 Mobile features 9,728 shading units, 304 texture mapping units, 112 ROPs, 76 ray tracing cores, and 304 tensor cores. The RX 560 XT has 1,792 shading units, 112 TMUs, and 32 ROPs, with no ray tracing or tensor cores at all. In terms of raw throughput, the RTX 4090 Mobile delivers 32.98 TFLOPS of FP32 performance and the same 32.98 TFLOPS for FP16 (1:1), while the RX 560 XT manages 4.394 TFLOPS for both FP32 and FP16. That is a 7.5x advantage in raw floating-point compute for the NVIDIA part. Pixel and texture rates tell the same story: the RTX 4090 Mobile hits 189.8 GPixel/s and 515.3 GTexel/s, while the RX 560 XT reaches only 39.23 GPixel/s and 137.3 GTexel/s.

Memory configuration is another major differentiator. The RTX 4090 Mobile comes with 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth at an effective speed of 18 Gbps. The RX 560 XT has 4 GB of GDDR5 memory on the same 256-bit bus width, but only achieves 224.0 GB/s at 7 Gbps effective. The NVIDIA part also runs higher clocks, with a base of 1335 MHz and a boost of 1695 MHz, versus 1074 MHz base and 1226 MHz boost for the AMD card. Feature support further separates them: the RTX 4090 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the RX 560 XT is limited to DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The RTX 4090 Mobile also uses a PCIe 4.0 x16 interface, whereas the RX 560 XT is on PCIe 3.0 x16.

Power and physical design differ as well. The RTX 4090 Mobile is rated at 120 W TDP and is an IGP (integrated graphics processor) with no power connectors, designed for portable devices. The RX 560 XT is a dual-slot card with a 150 W TDP, a single 6-pin power connector, and a suggested PSU of 450 W. It measures 241 mm (9.5 inches) in length and offers 1x HDMI 2.0b and 3x DisplayPort 1.4a outputs, while the RTX 4090 Mobile's display outputs are portable device dependent. The RX 560 XT is end-of-life, having launched in March 2019, while the RTX 4090 Mobile is still active and launched in January 2023.

Where Each One Wins

Given the benchmark data, there is no recorded test where the RX 560 XT outperforms the RTX 4090 Mobile. The wins column shows 2 for the RTX 4090 Mobile and 0 for the RX 560 XT. That said, the two cards serve fundamentally different use cases, and the data supports distinct recommendations based on workload and platform.

The RTX 4090 Mobile is the clear choice for any application that demands maximum compute throughput, ray tracing capability, or large memory capacity. Its 16 GB of GDDR6 memory with 576.0 GB/s bandwidth is suited for high-resolution textures, machine learning workloads (thanks to 304 tensor cores), and real-time ray tracing (76 dedicated RT cores). The 476.1% lead in OpenCL and 363.1% lead in Vulkan indicate that any GPU-compute task, from rendering to scientific simulation, will heavily favor the NVIDIA part. Its 84th percentile ranking places it among the top tier of all GPUs in the database, making it appropriate for flagship laptops where space and power are constrained but performance cannot be compromised.

The RX 560 XT, despite losing every head-to-head test, still has a role. Its 79th percentile ranking is respectable, and its nearest rivals (RTX A2000 12 GB, RTX A1000, RX 480, HD 7950) are all within a fraction of a percent of its average score. This indicates that the RX 560 XT is a balanced mid-range desktop card that can handle 1080p gaming and light compute tasks without issue. Its 4 GB of GDDR5 memory is limited by modern standards, but for older titles or less demanding workloads, it remains functional. The dual-slot design, 150 W TDP, and 6-pin power connector make it easy to install in a standard desktop PC, whereas the RTX 4090 Mobile is not a standalone card at all; it is an IGP designed for laptops, with no user-replaceable power connectors or display outputs.

In short, the RTX 4090 Mobile wins on every measurable performance metric, but the RX 560 XT wins on accessibility, desktop compatibility, and lower system integration complexity. If the question is "which is faster," the answer is unambiguous. If the question is "which fits my use case," the answer depends entirely on whether you need a mobile powerhouse or a legacy desktop card.

FAQ

Q: How much faster is the NVIDIA GeForce RTX 4090 Mobile than the AMD Radeon RX 560 XT in Geekbench OpenCL?

A: The RTX 4090 Mobile scores 180,831, while the RX 560 XT scores 31,387. This represents a 476.1% advantage for the NVIDIA card.

Q: Does the AMD Radeon RX 560 XT win any benchmark against the RTX 4090 Mobile?

A: No. In the two recorded head-to-head tests (Geekbench OpenCL and Geekbench Vulkan), the RTX 4090 Mobile wins both. The win count is 2 for NVIDIA and 0 for AMD.

Q: What is the memory capacity and bandwidth difference between the two cards?

A: The RTX 4090 Mobile has 16 GB of GDDR6 memory with 576.0 GB/s bandwidth on a 256-bit bus. The RX 560 XT has 4 GB of GDDR5 memory with 224.0 GB/s bandwidth, also on a 256-bit bus.

Q: Which GPU has better API support for modern games?

A: The RTX 4090 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 560 XT supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The NVIDIA card also adds ray tracing and tensor cores, which the AMD card lacks entirely.

Q: What are the power requirements for each GPU?

A: The RTX 4090 Mobile has a 120 W TDP and no power connectors, as it is an IGP for laptops. The RX 560 XT has a 150 W TDP, requires a single 6-pin power connector, and suggests a 450 W PSU.

Q: How do these GPUs rank among all GPUs in the database?

A: The RTX 4090 Mobile sits in the 84th percentile, while the RX 560 XT is in the 79th percentile. The RTX 4090 Mobile's average score is 43,667, compared to 34,133 for the RX 560 XT.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 4090 Mobile is the superior performer by every recorded metric. Its 476.1% lead in OpenCL and 363.1% lead in Vulkan are not incremental improvements; they represent a generational leap in compute capability. The 16 GB memory capacity, 576.0 GB/s bandwidth, and 32.98 TFLOPS FP32 throughput put it in a class that the RX 560 XT cannot approach. The RTX 4090 Mobile also brings features the RX 560 XT simply does not have: 76 ray tracing cores, 304 tensor cores, DirectX 12 Ultimate support, and a 5 nm process that enables all of this within a 120 W TDP. If the requirement is maximum performance in a portable form factor, the RTX 4090 Mobile is the only choice.

The AMD Radeon RX 560 XT, however, is not without merit in its own context. It is an end-of-life desktop card with a 150 W TDP, a 6-pin connector, and a 450 W suggested PSU, making it straightforward to install in a traditional PC. Its 79th percentile ranking shows it is a capable mid-range part, and its nearest rivals are all within 0.5% of its average score, indicating balanced performance for its generation. For users with legacy systems, limited budgets (though pricing is not discussed here), or a need for a simple dual-slot card with standard display outputs, the RX 560 XT remains a functional option.

The verdict hinges on the use case. For a laptop user needing top-tier compute, ray tracing, or AI acceleration, the RTX 4090 Mobile is the definitive pick. For a desktop user seeking a modest, proven card for everyday tasks, the RX 560 XT is adequate, but it cannot compete on any level of raw performance. The recorded data does not support any other conclusion: the RTX 4090 Mobile wins decisively, and the RX 560 XT's role is limited to scenarios where its desktop form factor and lower power integration are the primary considerations.