SYSTEM ANALYZER

Rate My PC: Intel Core i9-13900K + AMD Radeon RX 6400

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

Build Configuration

Select your components

PROCESSOR (CPU)

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GRAPHICS CARD (GPU)

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89 Score

Top 11% Ranking

89 / 100

HIGH-END

Power Build

Top 11% of systems. Excellent for 1440p Ultra or 4K High gaming.

1440p Ultra4K High

System Balance Analysis

CPU vs GPU performance ratio

Well Balanced

CPU

96%

GPU

83%

PROCESSOR

Intel Core i9-13900K

61,766 Benchmark Score

Top 4% Market Ranking

View Full Specs →

GRAPHICS CARD

AMD Radeon RX 6400

6,001 Benchmark Score

Top 17% 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

View All Games →

Performance Insights

Tips to maximize your system

Strong Performance

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

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

The pairing of an Intel Core i9-13900K with an AMD Radeon RX 6400 is one of the most extreme mismatches in the database. The CPU sits in the 92nd percentile of all processors, while the GPU sits in the 35th percentile of all graphics cards. This is a desktop build where the processor is capable of sustaining the heaviest computational workloads, but the graphics adapter is suited only for light gaming and basic display output. The data shows a clear divide in capability, and understanding this balance is critical before committing to such a configuration.

Balance and Bottleneck

The benchmark results indicate a severe bottleneck at the graphics stage for any 3D workload. The CPU’s multi-threaded score in Cinebench R23 is 38271.5, placing it among the top tier of desktop processors. Conversely, the GPU’s Passmark G3D score is 7673, with a percentile rank of 35, meaning it performs worse than the majority of discrete graphics cards. In any gaming scenario, the RX 6400 will be the limiting factor, preventing the CPU from ever being fully utilized. The i9-13900K could be rendering frames at a high rate, but the GPU will cap the output to what its 128.0 GB/s memory bandwidth and 768 shading units can manage.

For non-graphics tasks, the bottleneck shifts entirely to the CPU and system memory. The CPU’s Passmark multithread score of 58589 and data encryption score of 46609 show exceptional processing power. The GPU’s compute capabilities are minimal, with a Passmark GPU compute score of 2812, so any general-purpose compute task should be offloaded to the CPU. The data indicates that this system is balanced only for office work and light web browsing, where the GPU is irrelevant. In any demanding application, the RX 6400 will be the sole constraint, holding back the platform’s overall performance to a fraction of what the CPU alone can achieve.

The FPS scaling in this configuration cannot be measured directly, as no measured FPS rows exist for this exact combination in the data. All FPS discussion here is estimated from the benchmark scores. The CPU’s single-thread score of 4608 in Passmark is high, but the GPU’s DirectX 12 score of 30 and DirectX 11 score of 70 in Passmark suggest that frame rates in modern titles will be low. The CPU’s potential for high-refresh gaming is entirely wasted, as the GPU’s pixel rate of 74.27 GPixel/s is insufficient for 1440p or 4K gaming at high settings.

FAQ

Q: Is this combination suitable for modern gaming?

A: No. The GPU’s 3DMark Steel Nomad DX12 score of 176 and Passmark G3D score of 7673 place it in the 35th percentile of all GPUs. This indicates it is only suitable for 1080p gaming at low to medium settings in less demanding titles. The CPU’s performance is irrelevant here because the GPU will always be the limiting factor.

Q: What is the primary strength of this system?

A: The primary strength is the CPU’s raw processing power. With a Geekbench multicore score of 22820 and a Cinebench R23 multicore score of 38271.5, the i9-13900K excels at video encoding, 3D rendering, software compilation, and heavy multitasking. The GPU is essentially a display adapter for these tasks.

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

A: The CPU is statistically tied with its nearest rivals. It is 0.1% ahead of the Intel Core i9-13900T, 0.1% behind the Intel Core Ultra 7 270HX Plus, and 0.1% behind the Intel Core i9-13900KF. This means the performance differences are negligible, and the choice between them would come down to platform features rather than speed.

Q: Does the GPU support modern graphics APIs?

A: Yes, the GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, hardware support does not translate to high performance. Its 12 RT cores are present, but the low shader count and 4 GB of VRAM will severely limit ray tracing and high-resolution textures.

Q: What is the intended market for the RX 6400?

A: The GPU is an entry-level, single-slot card with a 53 W TDP and no power connectors. Its suggested PSU of 250 W and compact design suggest it was intended for small form factor pre-built systems and office PCs, not for pairing with a flagship 125 W processor.

Q: Can this system be used for video editing?

A: Yes, but only with CPU-based rendering. The CPU’s Passmark data compression score of 793645 and floating-point math score of 151562 are excellent for codecs and effects. The GPU will not accelerate most modern video editing tasks effectively due to its low compute score of 2812.

Q: Is the 4 GB VRAM a problem?

A: Yes. For modern games, 4 GB of VRAM is insufficient for high-resolution textures. The GPU’s memory bus width of 64 bit and bandwidth of 128.0 GB/s are also low, which will cause stuttering and texture pop-in in games that exceed this memory capacity.

CPU Analysis

The Intel Core i9-13900K is a 24-core, 32-thread processor based on the Raptor Lake architecture, manufactured on Intel’s 10 nm process. It features a base clock of 3.00 GHz and a boost clock of 5.80 GHz, with an unlocked multiplier for overclocking. The CPU supports both DDR4 and DDR5 memory in a dual-channel configuration, and it includes integrated UHD Graphics 770. The L3 cache is 36 MB shared, with 2 MB of L2 cache per core. This is a high-end desktop part, and its benchmark scores reflect that positioning.

The benchmark results show a processor that scales exceptionally well with thread count. The 3DMark scores progress from 1187 in single-thread to 15509 in max-threads, demonstrating strong multi-core scaling. The Cinebench R23 multicore score of 38271.5 is a strong indicator of performance in 3D rendering and video encoding tasks. The Geekbench single-core score of 2628 is equally impressive, indicating snappy responsiveness in everyday applications and strong performance in lightly-threaded games. The Passmark integer math score of 207792 and extended instructions score of 46477 show that the CPU handles complex calculations and modern instruction sets with ease.

The data suggests that this CPU is not the bottleneck in this pairing. Its nearest rival, the Intel Core i9-13900KF, is only 0.1% faster, while the Intel Xeon 636 is 0.7% slower. The performance is so close that real-world differences would be imperceptible. The CPU’s 125 W TDP is the base power draw, but with boost clocks this high, a capable cooling solution is required. The data shows a processor built for heavy, sustained workloads, and it will deliver that performance regardless of the GPU installed.

Upgrade Path and Platform

The CPU uses the Intel Socket 1700 platform, which supports both DDR4 and DDR5 memory. This provides flexibility in building a system, as users can choose between more affordable DDR4 or higher-bandwidth DDR5. The CPU provides PCIe Gen 5 with 16 lanes, which is forward-looking for future storage and graphics cards. However, the current GPU only uses a PCIe 4.0 x4 interface, which is a limitation of the card itself, not the platform.

The GPU has a TDP of 53 W and a suggested PSU of 250 W, while the CPU has a TDP of 125 W. The data shows that power consumption is not a constraint for this pairing; a standard 500 W power supply would easily handle both components, though the CPU’s boost behavior could demand more. The RX 6400 requires no power connectors and is a single-slot card, making it physically easy to install.

A sensible next upgrade would be to replace the RX 6400 with a more powerful graphics card. The CPU has the headroom to support any modern GPU without bottlenecking. The platform’s PCIe Gen 5 support ensures that a future GPU will have full bandwidth available. The memory support for DDR5 means that users can upgrade to faster memory to further improve CPU performance in memory-sensitive tasks. The CPU’s high multi-threaded performance means it will remain relevant for several years, making the GPU the only weak point in this system.

Usage Scenarios

High-refresh gaming: This is a poor choice. The GPU’s Passmark DirectX 12 score of 30 and 3DMark Steel Nomad score of 176 indicate it cannot push high frame rates in modern titles. The CPU’s high single-thread score of 4608 will not help if the GPU is capped at low FPS. For 1080p esports titles, it might be adequate, but for AAA gaming, it will fall short.

Streaming: The CPU can handle streaming and encoding simultaneously. The Passmark multithread score of 58589 and data encryption score of 46609 are sufficient for software x264 encoding at high bitrates. However, the GPU is too weak to handle the gaming load alongside the encoding, so a dual-PC setup or a better GPU would be required for a smooth experience.

Video editing: This is a strong CPU workload. The Cinebench R23 multicore score of 38271.5 and Passmark floating-point math score of 151562 will accelerate rendering and effects processing. The GPU will not be a significant help due to its low compute score of 2812, so the workflow will rely entirely on the CPU.

3D rendering: Excellent for CPU-based renderers. The 24 cores and 32 threads will excel in Blender’s Cycles or similar CPU rendering tasks. The Cinebench R15 multicore score of 5805.5 and R20 multicore score of 20740 confirm this. The GPU’s contribution will be negligible.

Software development: This is an ideal scenario. The CPU’s high single-thread and multi-thread scores (Geekbench single-core 2628, multicore 22820) will speed up compilation times and running virtual machines. The GPU is sufficient for basic display output and 2D UI rendering.

Student and office work: This is overkill for the CPU but functional. The CPU will breeze through spreadsheets, documents, and web browsing. The GPU’s Passmark G2D score of 722 is adequate for desktop rendering. The system will be highly responsive, but the hardware is massively underutilized.

GPU Analysis

The AMD Radeon RX 6400 is an entry-level graphics card based on the RDNA 2.0 architecture, utilizing the Navi 24 chip manufactured on a 6 nm process at TSMC. It features 768 shading units, 48 TMUs, and 32 ROPs. The card has 4 GB of GDDR6 memory on a 64-bit bus, providing 128.0 GB/s of bandwidth. The base clock is 1923 MHz, with a boost clock of 2321 MHz. The GPU has 12 ray tracing cores, though their performance is limited by the low shader count.

The benchmark data shows a card that is strictly entry-level. The Passmark G3D score of 7673 places it in the 35th percentile of all GPUs, meaning it performs worse than 65% of the graphics cards in the database. Its nearest rival is the NVIDIA GeForce GTX 770M, with a delta of 0%. The 3DMark Steel Nomad DX12 score of 176 is very low, indicating poor performance in modern DirectX 12 titles. The Geekbench OpenCL score of 32011 and Vulkan score of 16372 are similarly modest.

The GPU’s compute capabilities are minimal. The Passmark GPU compute score of 2812 shows that it is not suited for compute-offload tasks like machine learning or GPU rendering. The DirectX 10 score of 54, DirectX 11 score of 70, and DirectX 9 score of 93 show that it performs better in older APIs, but still at a low absolute level. This is a card designed for basic display output and very light gaming, not for a high-end system.

Benchmark Performance

The Intel Core i9-13900K has an average benchmark score of 61766, placing it in the 92nd percentile of all CPUs. Its scores include 11201 in 3DMark 16-threads, 15509 in 3DMark max-threads, and 38271.5 in Cinebench R23 multicore. The single-thread performance is also strong, with a Passmark single-thread score of 4608 and a Geekbench single-core score of 2628. The CPU’s performance is consistent across all tests, showing no significant weaknesses.

The AMD Radeon RX 6400 has an average benchmark score of 6001, placing it in the 35th percentile of all GPUs. Its scores include 7673 in Passmark G3D, 32011 in Geekbench OpenCL, and 176 in 3DMark Steel Nomad. The GPU’s performance is low across the board, with its best relative showing in older DirectX benchmarks. The combined percentile for this build is 64, which is a measure of the system as a whole, but it is heavily skewed by the CPU’s high score.

The combined picture is one of massive imbalance. The CPU is in the top 8% of all processors, while the GPU is in the bottom 35%. The system’s overall performance in CPU-bound tasks will be excellent, but in GPU-bound tasks, it will be poor. The data shows that the CPU alone is responsible for almost all of the system’s positive performance characteristics.

Build Overview

This is a desktop build class system that pairs a flagship 13th generation Intel Core i9 processor with an entry-level AMD Radeon RX 6000 series graphics card. The CPU is a 24-core, 32-thread Raptor Lake part with a 5.80 GHz boost clock and a 125 W TDP. The GPU is a 4 GB GDDR6 card with a 64-bit memory bus and a 53 W TDP. The combined percentile of 64 places this system in the upper-middle tier of all builds, but this is misleading.

The tier is defined by the CPU’s performance, not the GPU’s. The CPU’s 92nd percentile ranking is a top-tier result, while the GPU’s 35th percentile is a low-tier result. This build is effectively a workstation CPU with a display adapter attached. It is not a gaming machine, nor is it a balanced general-purpose system. It is a platform that is ready for a GPU upgrade, and until that upgrade occurs, its performance will be severely limited.

Who Should Build It

This configuration is suitable for users who require maximum CPU performance for professional workloads but have no need for discrete graphics power. This includes software developers who need fast compilation times and heavy multitasking, as the CPU’s Cinebench R23 multicore score of 38271.5 and Passmark multithread score of 58589 will handle these tasks with ease. Students and office workers in STEM fields who run simulations or heavy data analysis will also benefit, as the CPU’s integer math score of 207792 and floating-point score of 151562 are substantial.

This build is not for gamers. The GPU’s 35th percentile ranking and 4 GB VRAM make it unsuitable for modern AAA titles at any resolution above 1080p. Even at 1080p, the Passmark DirectX 12 score of 30 suggests that most modern games will run at low settings and low frame rates. Content creators who work with video editing will find the CPU excellent for rendering, but the GPU will not accelerate effects or exports.

Small business workstations that run CPU-intensive enterprise software, such as database management or financial modeling, would see strong performance from the CPU’s 24 cores. The GPU is sufficient for spreadsheet rendering and web browsing. The only sensible users for this pairing are those who plan to upgrade the GPU immediately. The CPU provides a future-proof foundation, but the current GPU is a temporary placeholder.

Rate My PC: Intel Core i9-13900K + AMD Radeon RX 6400

Power Build

System Balance Analysis

Intel Core i9-13900K

AMD Radeon RX 6400

Market Position

Game Performance Benchmarks

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

Performance Insights

Strong Performance

Performance Tiers Explained

Ultimate

High-End

Mid-Range

Entry Level

Legacy

Balance and Bottleneck

FAQ

CPU Analysis

Upgrade Path and Platform

Usage Scenarios

GPU Analysis

Benchmark Performance

Build Overview

Who Should Build It

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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