SYSTEM ANALYZER

Rate My PC: AMD Ryzen 5 8640U + 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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92 Score

Top 8% Ranking

92 / 100

ULTIMATE READY

Apex Performer

Top 8% of systems. Capable of 4K Ultra gaming and advanced rendering.

4K 60+ FPSVR ReadyRay Tracing

System Balance Analysis

CPU vs GPU performance ratio

Well Balanced

CPU

87%

GPU

96%

PROCESSOR

AMD Ryzen 5 8640U

26,462 Benchmark Score

Top 13% 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

Optimal Performance

Your system is in the top tier. You can run any modern game at maximum settings.

4K Gaming Ready

Consider a 4K 144Hz monitor to fully utilize your hardware capabilities.

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

This analysis examines the AMD Ryzen 5 8640U paired with the NVIDIA GeForce RTX 4090 Mobile, a combination that pairs a 28-watt efficiency-focused processor with a flagship 120-watt mobile GPU. The data shows a significant imbalance in compute capability, with the GPU holding the 84th percentile among all GPUs while the CPU sits at the 78th percentile. No measured FPS data exists for this exact configuration; all gaming frame rate discussions are estimates derived from the benchmark scores.

Usage Scenarios

High-Refresh Gaming: The RTX 4090 Mobile’s PassMark G3D score of 27212 places it in the 84th percentile, indicating it can drive high refresh rates at demanding settings. However, the Ryzen 5 8640U’s single-thread score of 3534 in PassMark and Cinebench R23 single-core score of 1651 may constrain frame pacing in CPU-bound titles, meaning the GPU’s potential is only partially realized in scenarios with low graphical overhead.

Streaming: The GPU’s 304 tensor cores and Ada Lovelace architecture provide dedicated hardware for encoding and AI-enhanced streaming features. The CPU’s PassMark multithread score of 20322 and Cinebench R23 multicore score of 10433 offer sufficient headroom for encoding auxiliary tasks, though the 6-core/12-thread configuration will be the limiting factor when simultaneously running a game, encoder, and chat applications.

Video Editing: The combination of 16 GB of GDDR6 VRAM on the GPU and the CPU’s PassMark data compression score of 230080 suggests strong performance for timeline scrubbing and effect rendering. The GPU’s FP32 throughput of 32.98 TFLOPS accelerates export and preview rendering, while the CPU’s Geekbench multicore score of 8185 handles project management and asset importing without becoming a primary bottleneck.

3D Rendering: The RTX 4090 Mobile’s compute capabilities, evidenced by its PassMark GPU compute score of 12347, dominate this workload. The CPU’s PassMark floating point math score of 40330 and integer math score of 68051 support viewport manipulation, but final frame renders will be GPU-bound, making the CPU’s lower core count less consequential for this specific task.

Software Development: Compilation tasks benefit from the CPU’s Cinebench R23 multicore score of 10433, which is adequate for moderate-sized projects. The GPU’s Vulkan score of 170774 indicates strong compute offload potential for shader compilation and simulation tasks, while the dual-channel DDR5 memory bus with 89.6 GB/s bandwidth reduces data transfer stalls during iterative builds.

Student and Office Work: The CPU’s efficiency-focused 28 W TDP combined with its Geekbench single-core score of 2131 ensures responsive document editing and web browsing. The integrated Radeon 760M provides a fallback for light graphical tasks when the discrete GPU is idle, extending battery life, while the PassMark single-thread score of 3534 handles productivity suites with negligible latency.

Benchmark Performance

The CPU’s average benchmark score of 26462 places it at the 78th percentile among all processors, with nearest rivals including the Intel Core i9-12900HK at 26469 (0% delta) and the AMD Ryzen 7 7435HS at 26402 (0.2% delta). This indicates the 8640U sits in a performance tier comparable to older high-end mobile processors, despite its lower power envelope. The GPU’s average benchmark score of 43667 places it at the 84th percentile, with the NVIDIA RTX A6000 at 44075 (-0.9% delta) and the NVIDIA Quadro M6000 at 43301 (0.8% delta) as closest competitors.

In raw compute, the GPU delivers 32.98 TFLOPS of FP32 performance, while the CPU’s best multicore result is a Cinebench R23 score of 10433. The combined system percentile of 81 reflects the GPU’s dominance in overall system capability. The CPU’s PassMark multithread score of 20322 is modest for a modern processor, while the GPU’s PassMark G3D score of 27212 is exceptional for a mobile part. Benchmark results indicate the GPU outpaces the CPU by a wide margin in raw throughput, creating a system where graphical and compute-heavy tasks will vastly outperform CPU-bound workloads relative to other configurations.

Upgrade Path and Platform

The CPU uses the AMD Socket FP8 interface with a 28 W TDP, while the GPU is an IGP-class component with a 120 W TDP and no power connectors, drawing power through the motherboard. The platform supports DDR5 memory in a dual-channel configuration with 89.6 GB/s bandwidth, limiting memory expansion to the laptop’s design. PCIe Gen 4 with 20 CPU lanes and a PCIe 4.0 x16 GPU interface provides modern connectivity for NVMe storage and external devices.

A sensible next upgrade would focus on the CPU, as the GPU’s performance is unlikely to be fully utilized by the current processor in many workloads. The Ryzen 5 8640U’s 6 cores and 12 threads are the primary constraint, and a higher-core-count processor on the same FP8 socket would better match the GPU’s capabilities. The absence of a suggested PSU rating reflects the laptop form factor, where thermal and power delivery are fixed by the chassis design, so upgrades are limited to components that fit within the existing power envelope.

Who Should Build It

This configuration targets users who prioritize GPU-intensive tasks over CPU-bound workloads. Gamers at 1440p or 4K resolution will see the RTX 4090 Mobile’s 16 GB VRAM and 576.0 GB/s bandwidth handle high-resolution textures and ray tracing, though the CPU may cause frame drops in esports titles at lower resolutions. Content creators working with 4K video or large 3D scenes benefit from the GPU’s 76 RT cores and 304 tensor cores, which accelerate rendering and AI-assisted editing tools.

Developers building machine learning or compute applications will find the GPU’s FP16 performance of 32.98 TFLOPS (1:1) and Vulkan score of 170774 useful for prototyping, while the CPU’s PassMark extended instructions score of 16500 supports AVX-512 workloads. Students and small business workstations with occasional GPU-accelerated tasks will find the system overprovisioned for office work but capable of handling occasional rendering or simulation jobs. The 28 W CPU TDP and 120 W GPU TDP make this a power-hungry laptop configuration, so it is best suited for users who need desktop-class graphics in a mobile form factor.

Gaming Performance

No measured FPS data exists for this exact combination in the FACT PACK, so all frame rate figures are estimates based on benchmark scores. The GPU’s PassMark DirectX 12 score of 107 and DirectX 11 score of 262, combined with its G3D score of 27212, suggest strong performance in modern DirectX 12 titles at high settings. The GPU’s pixel rate of 189.8 GPixel/s and texture rate of 515.3 GTexel/s indicate it can handle high-resolution rendering without fill-rate bottlenecks.

At 1080p, the CPU’s single-thread performance will likely limit frame rates in CPU-bound games, as the Geekbench single-core score of 2131 is modest for high-refresh gaming. At 1440p and above, the GPU becomes the primary driver, and the RTX 4090 Mobile’s FP32 throughput of 32.98 TFLOPS suggests it can maintain high frame rates in most titles. The 16 GB VRAM ensures texture-heavy games at 4K will not exceed memory capacity, but the CPU’s PassMark physics score of 1033 indicates potential slowdowns in physics-heavy simulations.

GPU Analysis

The NVIDIA GeForce RTX 4090 Mobile is built on the AD103 chip with Ada Lovelace architecture and a 5 nm TSMC process, containing 45,900 million transistors on a 379 mm² die. Memory consists of 16 GB of GDDR6 on a 256-bit bus, providing 576.0 GB/s of bandwidth and a memory clock of 2250 MHz (18 Gbps effective). The GPU’s 9728 shading units, 304 TMUs, and 112 ROPs deliver a pixel rate of 189.8 GPixel/s and a texture rate of 515.3 GTexel/s.

The 76 RT cores and 304 tensor cores enable hardware-accelerated ray tracing and DLSS, with FP16 performance matching FP32 at 32.98 TFLOPS for AI workloads. The GPU’s PassMark G3D score of 27212 places it at the 84th percentile, outperforming the NVIDIA Quadro M6000 by 0.8% and trailing the RTX A6000 by 0.9%. For rendering, the Geekbench OpenCL score of 180831 and Vulkan score of 170774 indicate strong compute capability for Blender, Octane, and similar GPU-accelerated renderers. The 120 W TDP is notable for a mobile GPU, requiring robust cooling but enabling desktop-class performance in a laptop.

Balance and Bottleneck

The system exhibits a substantial bottleneck imbalance, with the GPU’s 84th percentile ranking far exceeding the CPU’s 78th percentile. In GPU-bound workloads like 3D rendering and high-resolution gaming, the RTX 4090 Mobile operates near its full potential, as the CPU’s role is secondary. However, in CPU-bound scenarios such as physics simulation, data compression, or single-threaded applications, the Ryzen 5 8640U becomes the limiting factor, with its PassMark single-thread score of 3534 and physics score of 1033 capping performance.

FPS scaling estimates suggest that at lower resolutions, the CPU bottleneck becomes more pronounced, as the GPU has spare capacity waiting for frame data. At higher resolutions, the GPU’s workload increases, allowing it to utilize more of its 32.98 TFLOPS of FP32 throughput, which reduces the relative impact of the CPU bottleneck. The CPU’s Cinebench R23 multicore score of 10433 versus the GPU’s compute score of 12347 indicates that for parallel compute tasks, the GPU is approximately 18% faster than the CPU in this specific metric, but the GPU’s advantage grows significantly in graphics-specific workloads.

FAQ

Q: What is the CPU’s benchmark percentile and how does it compare to rivals?

A: The AMD Ryzen 5 8640U ranks in the 78th percentile among all CPUs, with an average benchmark score of 26462. It matches the Intel Core i9-12900HK (26469, 0% delta) and is 0.2% ahead of the AMD Ryzen 7 7435HS (26402).

Q: What is the GPU’s memory configuration and bandwidth?

A: The NVIDIA GeForce RTX 4090 Mobile has 16 GB of GDDR6 memory on a 256-bit bus, with a bandwidth of 576.0 GB/s and an effective memory clock of 18 Gbps.

Q: Does this configuration have measured FPS data?

A: No measured FPS data exists for this exact CPU and GPU combination. All gaming performance figures are estimates derived from benchmark scores, specifically the GPU’s PassMark G3D score of 27212 and CPU’s single-thread scores.

Q: What is the CPU’s core count, clock speed, and architecture?

A: The Ryzen 5 8640U has 6 cores and 12 threads, with a base clock of 3.50 GHz and boost clock of 4.90 GHz. It is based on Zen 4 architecture (Hawk Point) on a 4 nm TSMC process.

Q: What is the GPU’s FP32 performance and how does it compare to its compute score?

A: The GPU delivers 32.98 TFLOPS of FP32 performance, with a PassMark GPU compute score of 12347. Its FP16 performance matches FP32 at 32.98 TFLOPS (1:1), indicating strong AI and compute capabilities.

Q: What are the nearest rivals to this GPU in benchmark scores?

A: The RTX 4090 Mobile’s average score of 43667 is 0.8% higher than the NVIDIA Quadro M6000 (43301), 0.9% higher than the RTX 5050 Mobile (43268), and 0.9% lower than the RTX A6000 (44075).

Q: What is the system’s combined percentile and what does it indicate?

A: The combined system percentile is 81, reflecting the GPU’s strong 84th percentile ranking pulling up the CPU’s 78th percentile. This indicates the overall system is better suited for GPU-intensive tasks than CPU-bound workloads.

CPU Analysis

The AMD Ryzen 5 8640U is a 6-core, 12-thread processor from the 8000 series, based on Zen 4 architecture with the Hawk Point codename. It operates at a 3.50 GHz base clock and 4.90 GHz boost clock, with a 28 W TDP, and is manufactured on TSMC’s 4 nm process with 25,000 million transistors on a 178 mm² die. Cache hierarchy includes 64 KB L1 per core, 1 MB L2 per core, and 16 MB of shared L3 cache.

The CPU’s memory support includes DDR5 in a dual-channel configuration with 89.6 GB/s bandwidth, and it provides PCIe Gen 4 with 20 CPU lanes. The integrated Radeon 760M GPU offers a fallback for graphics when the discrete RTX 4090 Mobile is not in use. Benchmark results show a Cinebench R23 multicore score of 10433 and single-core score of 1651, with Geekbench scores of 8185 (multicore) and 2131 (single-core). PassMark tests reveal strengths in data compression (230080), integer math (68051), and floating point math (40330), but weaknesses in physics (1033) and prime number finding (69).

The CPU’s average benchmark score of 26462 places it at the 78th percentile, comparable to the Intel Core i9-12900HK and Core i7-1280P, both at 26469 with 0% delta. For real workloads, the 8640U provides solid multi-threaded performance for its power class, but its 6-core configuration limits heavy parallel tasks. The PassMark multithread score of 20322 indicates it can handle moderate video editing and compilation workloads, while the single-thread score of 3534 ensures responsive day-to-day use. The 4.90 GHz boost clock helps single-threaded performance, but the 28 W TDP means sustained multi-core loads will likely encounter thermal or power throttling, making the CPU the primary bottleneck in this high-end GPU pairing.

Rate My PC: AMD Ryzen 5 8640U + NVIDIA GeForce RTX 4090 Mobile

Apex Performer

System Balance Analysis

AMD Ryzen 5 8640U

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

Optimal Performance

4K Gaming Ready

Performance Tiers Explained

Ultimate

High-End

Mid-Range

Entry Level

Legacy

Usage Scenarios

Benchmark Performance

Upgrade Path and Platform

Who Should Build It

Gaming Performance

GPU Analysis

Balance and Bottleneck

FAQ

CPU 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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