SYSTEM ANALYZER

Rate My PC: AMD Ryzen 9 7900X + AMD Radeon RX 6400

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

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
95%
VS
GPU
83%
PROCESSOR

AMD Ryzen 9 7900X

53,288 Benchmark Score
Top 5% 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 AMD Ryzen 9 7900X is a 12-core, 24-thread desktop processor built on the Zen 4 architecture (codenamed Raphael) and manufactured on TSMC's 5 nm process. It operates on the AMD Socket AM5 platform with a base clock of 4.70 GHz and a boost clock of 5.60 GHz. This is paired in this build with an AMD Radeon RX 6400, a compact RDNA 2.0 graphics card based on the Navi 24 chip (6 nm process). The combination represents a stark asymmetry in compute capability: the CPU sits at the 91st percentile among all CPUs, while the GPU rests at the 35th percentile among all GPUs. The system's combined percentile is 63, indicating that the pairing's overall performance tier is dragged down significantly by the graphics component. This analysis uses only the benchmark scores provided, and it should be noted from the outset that no measured FPS rows exist for this exact combination — all gaming performance discussion is framed as estimates derived from the CPU and GPU benchmark scores.

CPU Analysis

The Ryzen 9 7900X is a high-end desktop processor with 12 cores and 24 threads, a configuration that excels in heavily threaded workloads. Its 64 MB of shared L3 cache, alongside 1 MB of L2 per core and 64 KB of L1 per core, provides a robust memory hierarchy for data-intensive tasks. The CPU supports DDR5 memory in a dual-channel configuration, offering a memory bandwidth of 83.2 GB/s, and includes ECC memory support. It also provides PCIe Gen 5 connectivity with 24 lanes from the CPU, which is forward-looking for storage and expansion.

Benchmark data confirms its multi-threaded dominance. In Cinebench R23, the CPU scores 29,300 in multi-core and 2,016.5 in single-core. The multi-core score is roughly 14.5 times the single-core score, showcasing excellent scaling across its 24 threads. In Geekbench, it achieves 19,267 multi-core and 2,617 single-core. The 3DMark tests show a progression from 1,093 single-thread, to 2,137 for 2 threads, 4,151 for 4 threads, 7,798 for 8 threads, 10,972 for 16 threads, and 12,536 for max threads. This scaling indicates that the processor maintains efficiency as more threads are utilized, though the gains per additional thread diminish beyond 16 threads, which is typical for a 12-core part.

PassMark results further illustrate its capabilities. The multi-thread score is 51,406, while the single-thread score is 4,238. Data compression hits 632,505, and integer math reaches 169,273. Floating-point math scores 103,952, and extended instructions (SIMD) score 47,619. These figures suggest the CPU is exceptionally well-suited for compression tasks, scientific computing, and any workload that leverages AVX-512 or similar instruction sets. The average benchmark score is 53,288, placing it at the 91st percentile of all CPUs.

Compared to its nearest rivals, the Ryzen 9 7900X is virtually tied with the AMD EPYC 7313P, which has an average score of 53,206 (a 0.2% difference). It is also close to the Intel Xeon Phi 7290 (53,469, -0.3%), the Intel Xeon 634 (52,974, 0.6%), and the Intel Core i7-14700F (53,620, -0.6%). This places the 7900X in a performance band alongside server and workstation-class chips, indicating that its multi-threaded might is comparable to enterprise hardware, despite being a desktop part. The single-thread score of 2,016.5 in Cinebench R23 suggests strong per-core performance, which is critical for responsiveness in everyday tasks and lightly-threaded applications.

Usage Scenarios

High-Refresh Gaming: The CPU is more than capable of driving high frame rates, given its strong single-thread score of 1,093 in 3DMark and 2,016.5 in Cinebench R23. However, the Radeon RX 6400's 3DMark Steel Nomad score of 176 and PassMark G3D score of 7,673 represent a severe bottleneck. At 1080p, the GPU will likely limit frame rates well below what the CPU can feed, making high-refresh (144Hz+) gaming unrealistic in most titles.

Streaming: The 24 threads of the Ryzen 9 7900X provide ample headroom for software encoding (x264) while gaming. The Cinebench R23 multi-core score of 29,300 indicates that the CPU can handle encoding workloads alongside gaming without dropping frames. However, the RX 6400's limited 4 GB VRAM and low compute power (3.565 TFLOPS FP32) will constrain the gaming side of the stream to modest settings and resolutions.

Video Editing: The CPU excels in this scenario. The PassMark multi-thread score of 51,406 and data compression score of 632,505 suggest that timeline scrubbing, rendering, and exporting will be fast. The 64 MB L3 cache helps with large media files. The GPU's role in effects and acceleration is limited, but the CPU will handle the heavy lifting for 4K or 1080p editing workflows.

3D Rendering: This is a strength. The Cinebench R23 multi-core score of 29,300 and the 3DMark max threads score of 12,536 indicate that CPU-based rendering (e.g., Blender Cycles CPU, V-Ray) will be very efficient. The RX 6400's 768 shading units and 12 ray accelerators provide some GPU acceleration, but its 3.565 TFLOPS FP32 performance is a fraction of what dedicated render GPUs offer, so reliance on CPU rendering is advisable.

Software Development: The CPU's 12 cores and 24 threads are ideal for parallel compilation. The PassMark integer math score of 169,273 and extended instructions score of 47,619 suggest fast code compilation and execution of test suites. The PCIe Gen 5 support allows for fast NVMe storage, which reduces build times. The GPU is irrelevant for most development tasks, making this a strong workstation for coders.

Student and Office Work: This is overkill on the CPU side. The single-thread performance (4,238 PassMark) ensures snappy spreadsheet, word processing, and web browsing. However, the RX 6400 is underpowered even for some office tasks requiring GPU acceleration, though its PassMark G2D score of 722 is adequate for 2D desktop rendering. The high TDP of 170 W and the cost of the CPU are not justified by office workloads, but the system is functional.

Gaming Performance

Since the FACT PACK contains no measured FPS data for this CPU+GPU combination, the following figures are estimates based on the benchmark scores of the individual components. The CPU's single-thread performance is excellent (3DMark single-thread score of 1,093), but the GPU's PassMark G3D score of 7,673 and 3DMark Steel Nomad score of 176 indicate entry-level graphics capability.

At 1080p resolution with ultra settings, games will likely run at low frame rates (typically 20-40 FPS) in modern AAA titles due to the RX 6400's 4 GB VRAM and 128.0 GB/s memory bandwidth. The GPU's 32 ROPs and 48 TMUs limit fill-rate and texture throughput, which are critical for high-resolution textures and effects. In e-sports titles like CS:GO or Valorant, which are less demanding, the CPU's high IPC (single-thread score of 2,016.5 in Cinebench R23) could push frame rates higher, but the GPU will still cap performance, likely yielding 60-80 FPS at high settings.

At 1440p, the RX 6400 is severely constrained. The 3.565 TFLOPS FP32 compute and 128.0 GB/s bandwidth are insufficient for smooth gameplay at this resolution, and estimates suggest frame rates will drop below 30 FPS in most modern games. At 4K, the GPU is not a viable option for gaming, with estimated frame rates in the single digits to low teens. The CPU would not be the limiting factor at any resolution; the GPU's 35th percentile ranking versus the CPU's 91st percentile creates a massive disparity. Users should expect to lower settings to medium or low and utilize upscaling technologies to achieve playable frame rates, but the 4 GB VRAM will still cause texture pop-in and stuttering in newer titles.

Who Should Build It

This build targets users who prioritize CPU-intensive workloads and are willing to compromise on gaming graphics. The primary audience is content creators and professionals who rely on multi-threaded performance for video editing, 3D rendering, and software compilation. The Cinebench R23 multi-core score of 29,300 and PassMark multi-thread score of 51,406 make this system a formidable workstation for rendering and encoding tasks.

Developers will benefit from the 24 threads and high integer math score (169,273), which speeds up build times and running test suites. The PCIe Gen 5 interface allows for future high-speed storage upgrades.

Students and office workers in technical fields (e.g., engineering, data science) will find the CPU's computational power useful for simulations and analysis, though they could do with a less powerful CPU and a more balanced GPU. The RX 6400 is adequate for 2D work and light GPU compute but is not suited for gaming at 1080p ultra or any higher resolution.

Gamers at 1080p low-to-medium settings who play undemanding or older titles might find this acceptable, but the 4 GB VRAM and low compute density make it a poor choice for modern gaming. The system is not for 1440p or 4K gaming, as the GPU's 35th percentile ranking dictates that the experience will be poor.

Balance and Bottleneck

The data clearly indicates a severe bottleneck. The CPU's average benchmark score is 53,288 (91st percentile), while the GPU's is 6,001 (35th percentile). This is a percentile gap of 56 points, which is substantial. In any gaming workload, the GPU will be the limiting factor. The CPU's 3DMark max threads score of 12,536 and single-thread score of 1,093 suggest it can process game logic and physics far faster than the GPU can render frames.

The FPS scaling in games is limited by the GPU's PassMark G3D score of 7,673. This score is comparable to the NVIDIA GeForce GTX 770M (6,000, 0% delta) and the AMD FirePro W4100 (5,987, 0.2% delta), which are older mobile and workstation parts. This indicates the RX 6400 is effectively a low-tier graphics solution from a performance standpoint, despite its modern architecture.

In CPU-heavy tasks like video encoding or 3D rendering, the CPU is not the bottleneck; the GPU's compute score of 2,812 in PassMark will slow down any GPU-accelerated effects. However, for pure CPU rendering, the system is well-balanced, as the GPU can handle display output while the CPU churns through frames. In gaming, the bottleneck is absolute: the GPU limits frame rates, while the CPU utilization will remain low (likely below 50% in most titles), wasting the processor's potential.

Upgrade Path and Platform

The Ryzen 9 7900X uses the AMD Socket AM5 platform, which is the current generation for AMD desktop processors. This socket supports DDR5 memory, and the CPU's dual-channel memory bus with 83.2 GB/s bandwidth is fully utilized. The platform supports PCIe Gen 5 with 24 lanes from the CPU, allowing for high-speed GPUs and NVMe SSDs.

The most sensible next upgrade is the GPU. The RX 6400 is end-of-life and its 53 W TDP and 250 W suggested PSU leave enormous headroom for a more powerful graphics card. The CPU's 170 W TDP means a total system power draw could easily exceed 500 W with a high-end GPU, so a PSU upgrade would be necessary, but the current 250 W suggestion is for the GPU alone. Upgrading to a mid-range or high-end GPU would unlock the CPU's full gaming potential, as the bottleneck would shift from the GPU to the display or game engine.

The CPU itself is unlocked (multiplier unlocked), allowing for overclocking, though its base clock of 4.70 GHz is already high. The platform's memory support is limited to DDR5, so users must have compatible RAM. The integrated Radeon Graphics in the CPU provides a fallback display output if the discrete GPU fails, but it is not suitable for gaming. Future upgrades could include a higher-core-count Ryzen 9 processor on the same AM5 socket, though the 7900X is already a top-tier part. The PCIe Gen 5 lanes also support future storage devices that can exceed current Gen 4 speeds.

Benchmark Performance

The CPU's benchmark scores are exceptional. In Cinebench R15, it scores 4,820.5 multi-core and 323 single-core. In 3DMark, the scores scale from 1,093 (single-thread) to 12,536 (max threads). Geekbench results are 19,267 multi-core and 2,617 single-core. PassMark scores include a multi-thread of 51,406, single-thread of 4,238, and a notable data encryption score of 37,263.

The GPU's scores are modest. In 3DMark Steel Nomad DX12, it scores 176. Geekbench OpenCL is 32,011, and Vulkan is 16,372. PassMark results show a G3D score of 7,673, a G2D score of 722, and a GPU compute score of 2,812. The DirectX 11 score is 70, DirectX 12 is 30, DirectX 10 is 54, and DirectX 9 is 93.

The combined picture is one of stark contrast. The CPU's average score of 53,288 places it among server-class chips like the AMD EPYC 7313P and Intel Xeon 634. The GPU's average score of 6,001 places it alongside the NVIDIA GeForce GTX 770M and AMD FirePro W4100. The system's combined percentile of 63 reflects this imbalance: the CPU is a top-tier performer, while the GPU is entry-level. For non-gaming tasks that rely on the CPU, this build performs like a high-end workstation. For gaming, it performs like a budget system from several years ago.

Build Overview

This is a desktop-class build that pairs a flagship-tier CPU with an entry-level GPU. The AMD Ryzen 9 7900X is a 12-core, 24-thread Zen 4 processor, while the AMD Radeon RX 6400 is a 4 GB GDDR6 RDNA 2.0 card. The CPU's 91st percentile ranking versus the GPU's 35th percentile ranking defines the system's character: it is a compute powerhouse with a graphics afterthought.

The system's overall tier, as indicated by the combined percentile of 63, places it in the mid-range of all builds, but this is misleading. In CPU-intensive tasks, it performs at the 91st percentile, rendering and encoding at speeds comparable to server processors. In GPU-intensive tasks, it falls to the 35th percentile, struggling with modern games at 1080p. The RX 6400 is end-of-life, and its 53 W TDP and single-slot design make it a placeholder rather than a long-term solution. This build is ideal for users who need massive CPU compute power and are willing to upgrade the GPU later, or for those who do not game at all and require a high-thread-count CPU for professional applications.

FAQ

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

A: The combined percentile is 63, which is lower than the CPU's individual 91st percentile and higher than the GPU's 35th percentile, reflecting the significant bottleneck imposed by the graphics card.

Q: How does the Ryzen 9 7900X compare to the Intel Core i7-14700F in average benchmark score?

A: The Ryzen 9 7900X has an average score of 53,288, while the Intel Core i7-14700F has an average score of 53,620, meaning the i7-14700F is approximately 0.6% faster based on the deltaPct of -0.6 for the 7900X relative to the rival.

Q: Is the Radeon RX 6400 suitable for 4K gaming?

A: No. The GPU's PassMark G3D score of 7,673 and 3DMark Steel Nomad score of 176 indicate very low compute power and memory bandwidth (128.0 GB/s), making 4K gaming unplayable, with estimated frame rates in the single digits.

Q: What is the maximum memory bandwidth supported by the Ryzen 9 7900X?

A: The CPU supports dual-channel DDR5 memory with a bandwidth of 83.2 GB/s, and it also supports ECC memory.

Q: Does the RX 6400 require a power connector?

A: No, the GPU has no power connectors and has a TDP of 53 W, with a suggested PSU rating of 250 W.

Q: What is the process node for the CPU and GPU?

A: The Ryzen 9 7900X is manufactured on TSMC's 5 nm process, while the Radeon RX 6400 uses TSMC's 6 nm process.

Q: What is the launch MSRP of the Ryzen 9 7900X?

A: The launch MSRP is $549.