SYSTEM ANALYZER

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

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

91 / 100
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Apex Performer

Top 9% 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%
VS
GPU
96%
PROCESSOR

AMD Ryzen 5 8640HS

26,106 Benchmark Score
Top 13% Market Ranking
View Full Specs →
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

# AMD Ryzen 5 8640HS + NVIDIA GeForce RTX 4090 Mobile

This laptop pairing combines a 6-core Zen 4 mobile processor with NVIDIA's flagship Ada Lovelace GPU, landing at the 81st percentile overall among all tested CPU+GPU combinations. The data shows a system with exceptional graphics horsepower and solid, though not class-leading, CPU throughput — a configuration that will favor GPU-bound workloads heavily while still handling multi-threaded productivity tasks competently. Note that no measured FPS rows exist for this exact combination; all frame-rate discussion below is estimated from the individual benchmark scores.

Upgrade Path and Platform

The AMD Ryzen 5 8640HS is built on the AMD Socket FP8 platform, which is a mobile-only socket with no desktop equivalent. This means the CPU is soldered or permanently mounted in the laptop chassis, and there is no conventional CPU upgrade path — the socket is not designed for user-swappable processors. Memory support is limited to DDR5, running on a dual-channel bus with a memory bandwidth of 89.6 GB/s. The platform does not support ECC memory, which is typical for consumer mobile systems.

PCIe connectivity comes from the CPU itself, providing Gen 4 with 20 lanes. This is sufficient for a high-end discrete GPU (the RTX 4090 Mobile uses a PCIe 4.0 x16 interface) and one or two NVMe SSDs, but it is not expandable beyond those lanes. The integrated Radeon 760M graphics provides a fallback display output and can handle light tasks when the discrete GPU is idle, though the RTX 4090 Mobile will dominate any graphics workload.

The CPU has a TDP of 28 W, a very low figure for a processor that boosts to 4.90 GHz. The GPU has a TDP of 120 W, and together the pair draws a modest amount of power for the performance on offer. The suggested PSU field is null, but given the combined TDP of 148 W plus other system components, a capable power adapter in the 200-300 W range would be typical for this class of laptop — though no specific figure is provided in the data. The GPU uses no power connectors (it is an IGP-style mobile chip), and its slot width is listed as IGP, indicating it is integrated into the motherboard rather than a removable MXM module.

For a sensible next upgrade, users should look at external GPUs via the PCIe Gen 4 lanes, though the 20-lane budget must be shared with storage. Alternatively, upgrading the DDR5 memory to higher-capacity modules is possible, but the CPU and GPU are effectively fixed for the life of the machine. The platform's strength is its efficiency: the 28 W CPU TDP leaves thermal headroom for the 120 W GPU, making this a balanced mobile platform for sustained loads.

Benchmark Performance

The CPU's benchmark results place it at the 78th percentile among all CPUs, with an average benchmark score of 26106. In Cinebench R23, the Ryzen 5 8640HS scores 11486 in multi-core and 1711 in single-core. The multi-core score is about average for a 6-core/12-thread part, while the single-core score reflects the 4.90 GHz boost clock. Geekbench results show 7461 multi-core and 1778 single-core, which are competitive numbers for this class.

The GPU is the dominant component here. The RTX 4090 Mobile sits at the 84th percentile among all GPUs, with an average benchmark score of 43667. In PassMark G3D, it scores 27212, and in Geekbench OpenCL it reaches 180831. The Vulkan score of 170774 is nearly as high, indicating strong cross-API performance. The GPU's PassMark G2D score of 984 is relatively low, but this is a compute-oriented benchmark and not indicative of 2D desktop performance.

The combined picture shows a system at the 81st percentile overall. The GPU is clearly the stronger component — its percentile rank is 6 points higher than the CPU's. This suggests that in most workloads, the GPU will be the primary performance driver, and the CPU will not be a significant bottleneck except in heavily CPU-bound scenarios. The nearest CPU rivals are all within 0.5% of its average score: the AMD Ryzen 5 8540U (-0.3%), Intel Core i9-11900KF (-0.4%), Intel Core i7-14701TE (+0.4%), and AMD Ryzen AI 5 340 (+0.5%). The GPU's nearest rivals include the NVIDIA RTX A6000 (-0.9%), Quadro M6000 (+0.8%), and RTX 5050 Mobile (+0.9%), showing that the 4090 Mobile trades blows with professional workstation GPUs.

Usage Scenarios

For high-refresh gaming at 1080p or 1440p, this system will be GPU-limited in most titles. The RTX 4090 Mobile's PassMark G3D score of 27212 is exceptional, and its 16 GB of VRAM ensures texture-heavy games will run smoothly. However, the CPU's Cinebench R23 multi-core score of 11486 is modest, so in CPU-bound esports titles at low settings, the processor may hold back the GPU. Estimated frame rates are high, but the exact figures depend on the game and settings.

Streaming is a mixed scenario. The GPU's 304 tensor cores and 76 RT cores provide hardware-accelerated encoding and ray tracing, and the NVENC encoder (implied by the Ada Lovelace architecture) will offload streaming load from the CPU. The CPU's 6 cores and 12 threads are sufficient for a game plus a streaming encoder, but the PassMark multi-thread score of 19889 suggests that heavy multitasking while streaming could strain the processor.

Video editing benefits from both components. The GPU's 32.98 TFLOPS FP32 performance accelerates effects and rendering, while the CPU's 12 threads handle timeline scrubbing and codec tasks. The Geekbench OpenCL score of 180831 indicates strong GPU compute for video filters, and the 16 GB VRAM allows for large project files. The CPU's PassMark integer math score of 68173 and floating point math score of 39725 are solid for encoding tasks.

3D rendering is where the GPU shines. The RTX 4090 Mobile's 9728 shading units and 515.3 GTexel/s texture rate will handle Blender or Maya viewports with ease, and the 112 ROPs deliver a pixel rate of 189.8 GPixel/s. The CPU's Cinebench R15 multi-core score of 1845 and R23 score of 11486 are adequate for scene preparation, but the GPU will dominate the actual render time.

Software development is a CPU-light workload. The Ryzen 5 8640HS's Geekbench single-core score of 1778 and Cinebench R23 single-core score of 1711 indicate strong per-thread performance for compilation tasks. The PassMark data compression score of 226544 is very high, which helps with build tools and file operations. However, the 6-core limit means large parallel builds will take longer than on 8-core or 16-core parts.

Student and office work is comfortably handled. The CPU's PassMark single-thread score of 3584 is respectable, and the integrated Radeon 760M can drive displays when the discrete GPU is disabled to save power. The 28 W CPU TDP means long battery life in light workloads, and the 89.6 GB/s memory bandwidth is more than enough for spreadsheets, documents, and web browsing.

Balance and Bottleneck

The data clearly shows a GPU-heavy balance. The RTX 4090 Mobile is at the 84th percentile among all GPUs, while the CPU is at the 78th percentile — a 6-point gap that will manifest in GPU-bound workloads. In gaming at high resolutions, the GPU will be the primary performance limiter, and the CPU's 12 threads will be sufficient to feed it. The GPU's PassMark G3D score of 27212 is roughly 37% higher than the CPU's PassMark multi-thread score of 19889, indicating the GPU is the stronger component.

However, in CPU-bound scenarios, the bottleneck flips. The CPU's 6 cores are below the 8-core threshold that many modern games and productivity apps prefer. The Cinebench R23 multi-core score of 11486 is about average for a 6-core part, and the nearest rival comparison shows the Intel Core i7-14701TE at +0.4% — essentially identical performance. This means in CPU-heavy titles or when running background tasks while gaming, the CPU will limit frame rates.

The FPS scaling evidence is absent (no measured FPS rows exist), but estimated from the benchmark scores, the GPU's dominance suggests that at 1080p with high settings, the GPU will still be the limiter in most AAA titles. At 1440p and 4K, the GPU's 16 GB VRAM and 576.0 GB/s bandwidth will be fully utilized, and the CPU's relative weakness will matter less. The PassMark data encryption score of 13551 and extended instructions score of 15855 show the CPU handles security and SIMD workloads adequately, but these are not primary gaming or rendering tasks.

CPU Analysis

The AMD Ryzen 5 8640HS is a 6-core, 12-thread processor from the 8000 series, built on the Zen 4 architecture with the Hawk Point codename. It is manufactured on TSMC's 4 nm process, with 25,000 million transistors on a 178 mm² die. The base clock is 3.50 GHz, boosting to 4.90 GHz, and the TDP is a low 28 W, making it an efficient part for thin-and-light laptops.

The cache hierarchy is tiered: 64 KB L1 per core, 1 MB L2 per core, and 16 MB of shared L3. This is a modest L3 pool for a modern CPU, and it shows in the benchmark scores. The Cinebench R23 multi-core score of 11486 is 4.9% below the R23 single-core score of 1711 multiplied by 12 threads (which would be 20532), indicating that multi-core scaling is not linear due to thermal and power limits at the 28 W TDP.

Single-core performance is the CPU's strength. The Geekbench single-core score of 1778 is competitive with desktop parts from a few generations ago, and the PassMark single-thread score of 3584 confirms strong per-thread speed. The PassMark physics score of 970 is low, which suggests that the CPU's floating-point throughput is limited in some workloads despite the 4.90 GHz boost.

The CPU's integrated Radeon 760M graphics provides a functional fallback, but it is not designed for gaming — the discrete RTX 4090 Mobile is the primary graphics solution. The memory bus is dual-channel DDR5, with a bandwidth of 89.6 GB/s, which is standard for this class and sufficient for both the CPU and iGPU.

Who Should Build It

This system targets gamers who want maximum laptop GPU performance at 1440p or 4K, where the RTX 4090 Mobile's 16 GB VRAM and 32.98 TFLOPS will shine. The CPU's 78th percentile rank is adequate for these resolutions, and the GPU's 84th percentile ensures high frame rates in demanding titles. Esports gamers at 1080p with low settings will find the CPU limiting, but the GPU will still deliver playable frame rates.

Content creators working with video editing or 3D rendering will benefit from the GPU's compute power. The Geekbench OpenCL score of 180831 and PassMark GPU compute score of 12347 indicate strong acceleration for Adobe Premiere, DaVinci Resolve, Blender, or Cinema 4D. The 16 GB VRAM is particularly useful for large scenes or high-resolution video timelines.

Software developers will find the CPU's single-core performance adequate for compilation and code analysis, but the 6-core limit will slow large parallel builds. The PassMark data compression score of 226544 is a plus for version control operations and build caching. Students and office workers will be well served by the efficient 28 W CPU TDP and the integrated graphics for light tasks, though the discrete GPU is overkill for this use case.

Small business workstations that need GPU acceleration for CAD, data visualization, or AI inference will benefit from the RTX 4090 Mobile's 304 tensor cores. The GPU's PassMark G3D score of 27212 is workstation-class, and the nearest rivals include professional GPUs like the RTX A6000. The CPU's 12 threads are sufficient for typical business multitasking.

FAQ

Q: What is the combined performance percentile of this CPU+GPU pairing?

A: The system sits at the 81st percentile among all tested CPU+GPU combinations, with the GPU at the 84th percentile and the CPU at the 78th percentile.

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

A: The Ryzen 5 8640HS has an average benchmark score of 26106, which is within 0.5% of the AMD Ryzen 5 8540U (-0.3%), Intel Core i9-11900KF (-0.4%), Intel Core i7-14701TE (+0.4%), and AMD Ryzen AI 5 340 (+0.5%).

Q: What is the GPU's memory configuration?

A: The RTX 4090 Mobile has 16 GB of GDDR6 memory on a 256-bit bus, with a bandwidth of 576.0 GB/s and a memory clock of 2250 MHz (18 Gbps effective).

Q: Can this system handle ray tracing?

A: Yes, the GPU has 76 RT cores and 304 tensor cores, and it supports DirectX 12 Ultimate (12_2), which includes hardware-accelerated ray tracing. The Geekbench Vulkan score of 170774 indicates strong ray-traced performance potential.

Q: What is the CPU's TDP and how does it affect thermals?

A: The CPU has a TDP of 28 W, which is very low for a 6-core, 12-thread processor boosting to 4.90 GHz. This efficient design leaves thermal headroom for the GPU's 120 W TDP, allowing sustained performance in a laptop chassis.

Q: Is there a measured FPS score for this combination?

A: No, there are no measured FPS rows for this exact CPU+GPU pairing. All frame-rate discussion is estimated from the individual CPU and GPU benchmark scores.

Q: What is the GPU's nearest rival in benchmark scores?

A: The RTX 4090 Mobile's nearest rivals are the NVIDIA RTX A6000 (-0.9%), Quadro M6000 (+0.8%), and RTX 5050 Mobile (+0.9%), with average scores all within 1% of 43667.

Build Overview

This is a laptop-class build combining the AMD Ryzen 5 8640HS (a 6-core, 12-thread Zen 4 mobile processor) with the NVIDIA GeForce RTX 4090 Mobile (the flagship Ada Lovelace laptop GPU). The pairing ranks at the 81st percentile overall, making it a high-end mobile configuration. The CPU is a 28 W part with a 4.90 GHz boost clock and 16 MB of L3 cache, while the GPU is a 120 W part with 16 GB of GDDR6 memory and 9728 shading units.

The class is clearly laptop, with both components designed for mobile use — the CPU uses Socket FP8 and the GPU is an IGP-style chip with no power connectors. The overall tier is strong: the 81st combined percentile places this system above the vast majority of tested configurations, and the GPU's 84th percentile rank is near the top of the mobile GPU hierarchy. This is a system built for GPU-intensive workloads, and the CPU is a capable companion rather than a bottleneck in most scenarios.

GPU Analysis

The NVIDIA GeForce RTX 4090 Mobile is built on the Ada Lovelace architecture with the AD103 chip, manufactured on TSMC's 5 nm process with 45,900 million transistors on a 379 mm² die. It has 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth with a memory clock of 2250 MHz (18 Gbps effective). The GPU's base clock is 1335 MHz, boosting to 1695 MHz.

The compute configuration is massive: 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores. This yields a pixel rate of 189.8 GPixel/s and a texture rate of 515.3 GTexel/s, with 32.98 TFLOPS of FP32 performance and 32.98 TFLOPS of FP16 (1:1 ratio). The GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, covering all modern graphics APIs.

Benchmark results confirm its high-end status. The PassMark G3D score of 27212 places it at the 84th percentile, and the Geekbench OpenCL score of 180831 is exceptionally high. The Vulkan score of 170774 is nearly as strong, showing that the GPU performs well across different compute interfaces. The PassMark GPU compute score of 12347 is lower relative to the G3D score, which is typical for desktop-oriented compute tests on mobile parts.

For rendering, the GPU's 76 RT cores and 304 tensor cores provide hardware acceleration for ray tracing and AI-based features like DLSS. The 16 GB VRAM is generous for a mobile GPU, allowing high-resolution textures and large 3D scenes. The nearest GPU rivals include professional workstation parts like the RTX A6000 (-0.9%) and Quadro M6000 (+0.8%), which shows that this mobile GPU competes with desktop workstation-class hardware. The GPU's TDP of 120 W is moderate for its performance level, and the lack of power connectors (IGP slot width) indicates it is integrated into the laptop motherboard, prioritizing thermal efficiency over raw power delivery.