SYSTEM ANALYZER

Rate My PC: AMD Ryzen 3 5125C + NVIDIA GeForce RTX 4090 Mobile

Get a comprehensive performance analysis of your gaming rig with detailed benchmarks, bottleneck detection, and upgrade recommendations

Build Configuration

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PROCESSOR (CPU)

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GRAPHICS CARD (GPU)

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81 Score

Top 19% Ranking

81 / 100

HIGH-END

Power Build

Top 19% of systems. Excellent for 1440p Ultra or 4K High gaming.

1440p Ultra4K High

System Balance Analysis

CPU vs GPU performance ratio

CPU Bottleneck

CPU

66%

GPU

96%

Your CPU is limiting system performance. Consider upgrading to a faster processor to better utilize your GPU.

PROCESSOR

AMD Ryzen 3 5125C

1,902 Benchmark Score

Top 34% Market Ranking

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GRAPHICS CARD

NVIDIA GeForce RTX 4090 Mobile

43,667 Benchmark Score

Top 4% Market Ranking

View Full Specs →

Market Position

How your build compares to others

Budget

0-30

Mid-Range

30-60

High-End

60-85

Enthusiast

85-100

Your Build

Game Performance Benchmarks

Real-world 4K FPS in popular titles

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Performance Insights

Tips to maximize your system

Strong Performance

Excellent for 1440p gaming. Most games will run at high/ultra settings smoothly.

Bottleneck Detected

CPU Bottleneck - Upgrading the weaker component will improve overall performance.

Compatible Games See what you can play Compare CPUs Find upgrades Compare GPUs Find upgrades

Performance Tiers Explained

90-100

Ultimate

4K Ultra gaming, VR ready, ray tracing enabled, professional workloads

4K 60+ FPS VR Ready

70-89

High-End

1440p Ultra or 4K High settings, excellent for modern AAA titles

1440p Ultra 4K High

50-69

Mid-Range

1080p Ultra or 1440p Medium, great value for most gamers

1080p Ultra 1440p Med

30-49

Entry Level

1080p Medium settings, suitable for eSports and older titles

1080p Med eSports

0-29

Legacy

Basic gaming, older titles, consider upgrading for modern games

720p-1080p Low Older Games

# AMD Ryzen 3 5125C + NVIDIA GeForce RTX 4090 Mobile

This pairing represents an unusual laptop configuration, combining a low-power, dual-core mobile processor with one of the most powerful mobile GPUs available. The data reveals a stark performance dichotomy: the CPU sits at the 43rd percentile among all processors, while the GPU commands an 84th percentile position among all graphics cards. This creates a system where the GPU is dramatically more capable than the CPU, suggesting that workload selection will be critical to extracting value from the hardware.

Upgrade Path and Platform

The AMD Ryzen 3 5125C uses the AMD Socket FP6, a mobile platform that is not designed for user-upgradeable processors. The socket is soldered in typical laptop implementations, meaning the CPU is effectively permanent. The platform supports DDR4 memory in a dual-channel configuration, with a theoretical memory bandwidth of 51.2 GB/s. This is the maximum memory throughput available, and it is a potential bottleneck for the RTX 4090 Mobile, which can consume data at a much higher rate via its 576.0 GB/s memory bandwidth.

PCIe connectivity is limited to Gen 3 with 8 lanes from the CPU. The GPU, however, uses a PCIe 4.0 x16 interface, which suggests the connection between CPU and GPU is constrained by the older, narrower CPU-side link. For a system with this GPU, the PCIe Gen 3 x8 interface may reduce performance in bandwidth-intensive tasks, though the impact on gaming is typically modest.

The CPU has a TDP of 15 watts, while the GPU is rated at 120 watts. The combined thermal and power envelope is substantial for a laptop, but the lack of a suggested PSU figure in the data means the power delivery requirements are not quantified. A sensible next upgrade for this platform would be to maximize memory capacity and speed within the DDR4 standard, as the CPU and GPU are both fixed. The Radeon Vega 3 integrated graphics in the CPU provide a fallback display output, which is useful for troubleshooting or low-power tasks.

Usage Scenarios

High-Refresh Gaming: The RTX 4090 Mobile is the dominant component here, with a Passmark G3D score of 27212, placing it in the 84th percentile of all GPUs. In less CPU-intensive titles, this GPU can drive high frame rates at demanding settings. However, the Ryzen 3 5125C's Geekbench single-core score of 1237 is modest by modern standards, and in CPU-bound scenarios, frame rates will be capped by the processor's capability.

Streaming: The GPU's 304 tensor cores and 76 RT cores provide dedicated hardware for encoding and AI-enhanced features like DLSS. This offloads work from the CPU, making the system viable for streaming at high bitrates. The CPU's 2 cores and 4 threads are a limitation for encoding tasks if software encoding is used, but hardware encoding on the GPU should be sufficient.

Video Editing: The GPU's FP32 performance of 32.98 TFLOPS is excellent for GPU-accelerated effects and rendering. The 16 GB of GDDR6 memory can hold large video buffers and complex timelines. However, the CPU's multi-core score of 2566 is below average, which will slow timeline scrubbing, preview generation, and any CPU-based encoding steps.

3D Rendering: The RTX 4090 Mobile excels at GPU rendering, with a Passmark GPU compute score of 12347 and a Geekbench OpenCL score of 180831. These numbers indicate strong performance in ray tracing and CUDA-accelerated workloads. The CPU will be a secondary factor in most GPU-rendered scenes, but for CPU rendering, the 2-core processor will be severely limiting.

Software Development: The CPU's performance is the primary constraint. With a Geekbench multi-core score of 2566, compilation times will be long, and running multiple virtual machines or containers is not practical. The GPU is irrelevant for most development tasks, so this system is poorly suited for developers who rely on heavy local builds.

Student and Office Work: For everyday tasks like word processing, spreadsheets, and web browsing, the Ryzen 3 5125C is adequate. The single-core score of 1237 is sufficient for basic responsiveness, and the Radeon Vega 3 integrated graphics can handle 2D desktop acceleration. The RTX 4090 Mobile is overkill for this workload, offering no benefit in standard office applications.

CPU Analysis

The AMD Ryzen 3 5125C is a 2-core, 4-thread processor based on the Zen 3 architecture, specifically the Cezanne-U variant for mobile. It operates at a base clock of 3.00 GHz, with no boost clock listed in the data. The processor is fabricated on TSMC's 7 nm process, containing 10,700 million transistors on a 180 mm² die. The cache hierarchy includes 64 KB of L1 and 512 KB of L2 per core, with 8 MB of shared L3 cache.

Benchmark results show a Geekbench multi-core score of 2566 and a single-core score of 1237. The average benchmark score is 1902, which places the CPU at the 43rd percentile of all CPUs. The nearest rivals are all within 0.4% of this average score: the Intel Core i3-9100F at 1903, the Intel Xeon E5-2620 v3 at 1907, the Intel Xeon E3-1285 v4 at 1908, and the AMD Ryzen 5 PRO 2400GE at 1910. The deltaPct values are all negative (between -0.1% and -0.4%), indicating that the Ryzen 3 5125C is marginally slower than each rival in average score.

The dual-core design is the fundamental limitation. In multi-threaded workloads, the 4 threads are insufficient to compete with modern 6-core or 8-core processors. The single-core score of 1237 is adequate for basic tasks but is not competitive with higher-end mobile or desktop chips. The lack of a boost clock is notable, as it suggests the processor may not have the thermal headroom or design for higher sustained frequencies.

Balance and Bottleneck

The performance asymmetry is extreme: the GPU is at the 84th percentile, while the CPU is at the 43rd percentile. This creates a clear bottleneck in CPU-bound workloads. In gaming, the CPU can limit frame rates in scenes with many physics calculations, AI routines, or draw calls. The GPU's high frame rendering capability is wasted if the CPU cannot feed it data quickly enough.

The Geekbench single-core score of 1237 indicates that the CPU will struggle with games that rely on single-threaded performance. The multi-core score of 2566 is similarly low, meaning that even games that scale well across cores will be limited. The combined percentile of 64 for this pairing reflects the drag that the CPU imposes on the overall system capability.

The memory bandwidth of 51.2 GB/s is also a potential bottleneck. The GPU has 576.0 GB/s of bandwidth, and the CPU's slower memory interface can cause data transfer stalls in mixed workloads. The PCIe Gen 3 x8 connection between CPU and GPU further limits data throughput, although for most gaming scenarios, this is less critical than raw CPU compute.

In GPU-bound tasks like 3D rendering or compute, the bottleneck shifts to the GPU, which operates near its full potential. The CPU is still involved in scene setup and data preparation, but the bulk of the work is on the GPU. This is the only scenario where the pairing makes sense from a performance perspective.

FAQ

Q: Is this pairing suitable for 4K gaming?

A: The RTX 4090 Mobile is powerful enough for high-resolution gaming, but the Ryzen 3 5125C's low single-core score of 1237 may limit frame rates in CPU-intensive titles, even at 4K resolution.

Q: Can the RTX 4090 Mobile be used for professional rendering?

A: Yes, the GPU's Geekbench OpenCL score of 180831 and Passmark GPU compute score of 12347 indicate strong compute performance for GPU-accelerated rendering, though the CPU will be a bottleneck in scene preparation.

Q: How does the CPU compare to its direct rivals?

A: The CPU's average benchmark score of 1902 is nearly identical to the Intel Core i3-9100F (1903), Intel Xeon E5-2620 v3 (1907), Intel Xeon E3-1285 v4 (1908), and AMD Ryzen 5 PRO 2400GE (1910), with all deltas within -0.4%.

Q: What is the GPU's memory configuration?

A: The RTX 4090 Mobile features 16 GB of GDDR6 memory on a 256-bit bus, providing 576.0 GB/s of memory bandwidth.

Q: Does the CPU have integrated graphics?

A: Yes, the Ryzen 3 5125C includes Radeon Vega 3 integrated graphics, which can be used for display output or low-demand tasks.

Q: Is the CPU overclockable?

A: No, the multiplier is not unlocked, and the processor is designed for fixed mobile operation.

Q: What is the combined performance percentile of this build?

A: The combined percentile is 64, indicating that this system outperforms 64% of all benchmarked builds, despite the CPU's relatively low position.

Who Should Build It

This configuration targets users who prioritize GPU performance above all else, such as those running GPU-accelerated compute workloads or playing graphically demanding games at high settings. The RTX 4090 Mobile's 84th percentile ranking makes it suitable for 3D artists, video editors using GPU effects, and researchers running CUDA-based simulations. However, the CPU's 43rd percentile ranking means that users who rely on CPU-intensive tasks will be disappointed.

Gamers at 1080p or 1440p resolutions will see the GPU's performance capped by the CPU in many titles. At 4K resolution, the GPU becomes the primary bottleneck in most games, which is a more favorable scenario for this pairing. Content creators who work primarily in GPU-accelerated applications like Blender or DaVinci Resolve will find the system capable, but those who use CPU-based encoding or effects will experience slowdowns.

Students and small business users should avoid this configuration, as the CPU is the weakest link and the GPU offers no benefit for standard office work. The system is a niche product for users who need maximum mobile GPU compute and are willing to accept a weak CPU.

Benchmark Performance

The CPU achieves a Geekbench multi-core score of 2566 and a single-core score of 1237, with an average benchmark score of 1902. This places it at the 43rd percentile of all CPUs. The GPU achieves a Geekbench OpenCL score of 180831 and a Geekbench Vulkan score of 170774. In Passmark tests, the GPU scores 27212 in G3D, 12347 in GPU compute, and 984 in G2D. The average benchmark score for the GPU is 43667, placing it at the 84th percentile.

The GPU's nearest rivals include the NVIDIA Quadro M6000 with an average score of 43301 (0.8% slower), the NVIDIA GeForce RTX 5050 Mobile at 43268 (0.9% slower), and the NVIDIA RTX A6000 at 44075 (0.9% faster). These small deltas indicate that the RTX 4090 Mobile is closely matched with these high-end cards.

The combined picture is a system where the GPU is clearly the star performer, with the CPU lagging significantly behind. The combined percentile of 64 reflects the CPU's drag on the overall score. In any workload that is heavily dependent on the GPU, the system will perform in the top tier, but in CPU-bound tasks, it will fall to the middle of the pack.

Build Overview

This is a laptop-class build (buildClass: "laptop") pairing the AMD Ryzen 3 5125C with the NVIDIA GeForce RTX 4090 Mobile. The CPU is a 2-core Zen 3 processor designed for low-power mobile use, while the GPU is a top-tier Ada Lovelace chip with 9728 shading units and 16 GB of GDDR6 memory. The combined percentile of 64 indicates that this system is more capable than most, but the CPU's 43rd percentile position is a significant weakness.

The RTX 4090 Mobile is the clear defining component, representing the highest tier of mobile graphics performance. The CPU, by contrast, is entry-level, even for mobile. This configuration is best described as a "GPU-first" laptop, where the graphics card is the primary selling point and the CPU is an afterthought.

Gaming Performance

No measured FPS data exists for this exact CPU+GPU combination. The FACT PACK contains no measuredFpsUltraByGame rows, and dataIsMeasured is false. Therefore, all FPS figures discussed here are estimates based on the benchmark scores of the individual components.

The RTX 4090 Mobile's Passmark G3D score of 27212 and Geekbench Vulkan score of 170774 suggest it is capable of high frame rates in most modern games at 1080p and 1440p with ultra settings. At 4K, the GPU's 16 GB of VRAM and 576.0 GB/s bandwidth are sufficient for demanding textures and effects. However, the CPU's Geekbench single-core score of 1237 is a limiting factor.

In games that are primarily GPU-bound, such as visually intensive titles with minimal CPU simulation, the system should deliver high frame rates. In CPU-bound games, such as those with complex physics or many NPCs, the frame rate will be constrained by the processor. The estimated performance range for this pairing is wide, from excellent in GPU-bound scenarios to mediocre in CPU-heavy ones.

GPU Analysis

The NVIDIA GeForce RTX 4090 Mobile is based on the AD103 chip, fabricated on TSMC's 5 nm process, containing 45,900 million transistors on a 379 mm² die. It operates at a base clock of 1335 MHz and a boost clock of 1695 MHz, with memory running at 2250 MHz (18 Gbps effective). The GPU has 16 GB of GDDR6 memory on a 256-bit bus, providing 576.0 GB/s of bandwidth.

Compute resources include 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores. The pixel rate is 189.8 GPixel/s, and the texture rate is 515.3 GTexel/s. FP32 performance is 32.98 TFLOPS, with FP16 at the same 32.98 TFLOPS (1:1 ratio). The GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Benchmark scores show a Geekbench OpenCL score of 180831 and a Vulkan score of 170774. The Passmark G3D score is 27212, with a GPU compute score of 12347. The average benchmark score is 43667, placing the GPU at the 84th percentile. The RTX 4090 Mobile's nearest rivals are the Quadro M6000 (43301, 0.8% slower), RTX 5050 Mobile (43268, 0.9% slower), Quadro M6000 24 GB (43262, 0.9% slower), and RTX A6000 (44075, 0.9% faster).

The GPU's tensor cores enable DLSS and AI-enhanced features, while the RT cores provide hardware-accelerated ray tracing. For rendering, the FP32 performance of 32.98 TFLOPS is substantial, and the 16 GB VRAM is suitable for large scenes. The 120 W TDP is high for a mobile GPU, indicating that adequate cooling is necessary to maintain boost clocks.

Rate My PC: AMD Ryzen 3 5125C + NVIDIA GeForce RTX 4090 Mobile

Power Build

System Balance Analysis

AMD Ryzen 3 5125C

NVIDIA GeForce RTX 4090 Mobile

Market Position

Game Performance Benchmarks

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

Performance Insights

Strong Performance

Bottleneck Detected

Performance Tiers Explained

Ultimate

High-End

Mid-Range

Entry Level

Legacy

Upgrade Path and Platform

Usage Scenarios

CPU Analysis

Balance and Bottleneck

FAQ

Who Should Build It

Benchmark Performance

Build Overview

Gaming Performance

GPU Analysis

4K Gaming Performance

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

1440p Gaming Performance

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

1080p Gaming Performance

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

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