SYSTEM ANALYZER

Rate My PC: Intel Core i9-12900KF + 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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88 Score

Top 12% Ranking

88 / 100

HIGH-END

Power Build

Top 12% of systems. Excellent for 1440p Ultra or 4K High gaming.

1440p Ultra4K High

System Balance Analysis

CPU vs GPU performance ratio

Well Balanced

CPU

93%

GPU

83%

PROCESSOR

Intel Core i9-12900KF

42,830 Benchmark Score

Top 7% Market Ranking

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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

# GPU Analysis — VRAM, bandwidth, clocks, RT/tensor hardware, what the benchmark scores mean for rendering

The AMD Radeon RX 6400 is a compact, single-slot graphics card built on the RDNA 2.0 architecture, fabricated on TSMC's 6 nm process. Its most striking limitation is the 4 GB GDDR6 memory pool, paired with a 64-bit memory bus that delivers 128.0 GB/s of bandwidth. This is a configuration designed for minimal power draw — the card's TDP is only 53 W, with no external power connectors required, and AMD suggests a 250 W power supply for the system. The GPU runs at a base clock of 1923 MHz, a game clock of 2039 MHz, and a boost clock of 2321 MHz, with memory clocked at 2000 MHz (16 Gbps effective).

The RX 6400's compute resources are modest: 768 shading units, 48 texture mapping units, and 32 raster output pipelines. It also includes 12 ray-tracing cores, but no tensor cores — this is a notable absence that limits any AI-accelerated workloads that NVIDIA cards with dedicated tensor hardware can handle. The FP32 throughput is 3.565 TFLOPS, with FP16 performance rated at 7.130 TFLOPS (2:1 ratio). Pixel rate is 74.27 GPixel/s and texture rate is 111.4 GTexel/s. The card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which means it is feature-complete for modern gaming APIs, including ray tracing support at the hardware level.

However, the benchmark data reveals a GPU that is severely constrained. Its Passmark G3D score is 7673, placing it at the 35th percentile of all GPUs. The 3DMark Steel Nomad DX12 score is only 176, and the Geekbench OpenCL score is 32011, with Vulkan at 16372. These numbers are low across the board. The DirectX 12 Passmark score of 30 is particularly telling, suggesting that the card struggles with modern low-level API workloads. For rendering tasks, the 4 GB VRAM capacity is the primary bottleneck — modern 3D scenes and high-resolution textures will quickly exceed this limit, causing asset streaming and texture thrashing. The FP32 throughput of 3.565 TFLOPS is adequate for lightweight 1080p rendering, but the memory bandwidth of 128.0 GB/s will choke complex scenes with heavy geometry and shader work. The ray-tracing cores are present, but their effectiveness is questionable given the overall low compute throughput; ray-traced scenes will likely run at very low frame rates even at 1080p.

# Benchmark Performance — exact CPU and GPU scores, percentile positions, and what the combined picture is

The Intel Core i9-12900KF is an absolute heavyweight in CPU benchmarks. Its average benchmark score is 42830, placing it at the 88th percentile of all CPUs. In 3DMark, it scores 9860 in the 16-thread test, 2112 in the 2-thread test, 4132 in the 4-thread test, 7551 in the 8-thread test, and 11586 in the max-thread test. Single-thread performance is 1069. Cinebench results are equally strong: R15 multi-core scores 3469 and single-core 489; R20 multi-core scores 14456 and single-core 2040; R23 multi-core scores 34420 and single-core 4859. Geekbench reports 18113 multi-core and 2361 single-core. Passmark tests show 40970 in multi-thread, 4144 in single-thread, 537785 in data compression, 29502 in data encryption, 33779 in extended instructions, 138932 in integer math, 105558 in floating-point math, 57177 in random string sorting, and 2098 in physics.

The GPU's average benchmark score is 6001, at the 35th percentile. The contrast is stark: the CPU is in the top 12% of all processors, while the GPU is in the bottom 35% of all graphics cards. This pairing creates an extreme imbalance that the combined percentile of 62 reflects — a number that sits between the two components, but the data suggests the GPU will dominate system performance in graphics-bound tasks. The CPU's nearest rivals include the Intel Core i9-12900 (avg score 42906, delta -0.2%), the Intel Core i9-12950HX (avg score 42487, delta +0.8%), the Intel Core Ultra 9 386H (avg score 43210, delta -0.9%), and the Intel Core i9-12900K (avg score 42335, delta +1.2%). The 12900KF is essentially neck-and-neck with these parts, within 1.2% of its closest competitor.

The GPU's nearest rivals are a mix of old and specialized hardware: the NVIDIA GeForce GTX 770M (avg score 6000, delta 0%), the NVIDIA RTX PRO 6000 Blackwell Server (avg score 5996, delta +0.1%), the AMD FirePro W4100 (avg score 5987, delta +0.2%), and the NVIDIA Quadro K4000M (avg score 5986, delta +0.3%). The RX 6400 is effectively tied with these parts, all within 0.3% of each other. This is a striking data point: a modern 2022 GPU performing at the same level as a 2013 mobile GPU (GTX 770M) and a 2013 workstation GPU (Quadro K4000M). The combined picture is one of extreme asymmetry — the CPU is a top-tier workstation-class processor, while the GPU is entry-level, barely above integrated graphics territory in raw compute.

# CPU Analysis — cores, clocks, architecture, what the benchmark scores mean for real workloads

The Intel Core i9-12900KF is built on the Alder Lake architecture, Intel's 12th-generation hybrid design, fabricated on a 10 nm process with a die size of 215 mm². It has 16 cores and 24 threads, with a base clock of 3.20 GHz and a boost clock of 5.20 GHz. The TDP is 125 W, and it uses the Intel Socket 1700 platform. Cache configuration includes 80 KB of L1 per core, 1.25 MB of L2 per core, and 30 MB of shared L3 cache. Memory support includes both DDR4 and DDR5, running in dual-channel mode, though ECC memory is not supported. PCIe connectivity is Gen 4 with 20 lanes from the CPU. The multiplier is unlocked, and the launch MSRP was $564.

The benchmark scores paint a picture of a processor that excels in both single-threaded and heavily threaded workloads. The Cinebench R23 multi-core score of 34420 is exceptional, indicating that the 16-core/24-thread configuration handles content creation, 3D rendering, and video encoding with ease. The single-core R23 score of 4859 is equally strong, meaning everyday desktop responsiveness and lightly threaded applications (like many games) will run at high speeds. The 3DMark max-thread score of 11586 versus the single-thread score of 1069 shows good scaling across cores, though the ratio of roughly 10.8x from 1 to 24 threads indicates some diminishing returns — likely due to the hybrid P-core/E-core design where not all cores are created equal.

The Passmark data reveals specific workload characteristics. Data compression scores 537785, data encryption 29502, extended instructions 33779, integer math 138932, floating-point math 105558, and random string sorting 57177. The physics score of 2098 is notably lower than the other Passmark sub-scores, which could indicate that the test is not fully utilizing the hybrid architecture. The average benchmark score of 42830 places it at the 88th percentile, and its nearest rival, the Intel Core i9-12900, is only 0.2% behind — essentially identical performance. The 12900K is 1.2% behind, and the 12950HX is 0.8% behind. This means the 12900KF is at the very top of its generation, with only the Core Ultra 9 386H (0.9% ahead) slightly exceeding it among the listed rivals.

For real workloads, this CPU is a powerhouse. Video editing, 3D rendering, software compilation, and scientific computing will all benefit from the high multi-threaded scores. The boost clock of 5.20 GHz ensures that single-threaded tasks, such as legacy software or certain game engines, run at maximum speed. The 30 MB of L3 cache provides ample data storage for memory-intensive workloads, and the dual-channel memory support (with both DDR4 and DDR5 options) gives flexibility in platform configuration.

# Usage Scenarios — grounded in the scores: high-refresh gaming, streaming, video editing, 3D rendering, software development, student and office work. One short paragraph per scenario, citing the numbers that support the verdict

High-refresh gaming: The CPU can easily push high frame rates in esports titles, given its 3DMark single-thread score of 1069 and Cinebench R23 single-core of 4859. However, the RX 6400's Passmark G3D score of 7673 and DX12 score of 30 will be the limiting factor. At 1080p with low settings, the GPU may deliver playable frame rates in older or lighter games, but modern AAA titles at high refresh rates are beyond its capability. The 4 GB VRAM and 128.0 GB/s bandwidth are insufficient for consistent 144 Hz gaming.

Streaming: The 16-core/24-thread CPU can handle encoding and gaming simultaneously; the Cinebench R23 multi-core score of 34420 ensures that x264 encoding at high presets leaves ample CPU headroom. However, the GPU's modest compute (3.565 TFLOPS FP32) means hardware-accelerated encoding quality will be lower than dedicated NVENC solutions. Streamers will need to rely on the CPU for encoding, which is a viable path given its massive multi-threaded performance.

Video editing: The CPU's Passmark multi-thread score of 40970 and Cinebench R20 multi-core of 14456 indicate fast export and render times in software like Premiere Pro or DaVinci Resolve. The GPU's 4 GB VRAM and 128 GB/s bandwidth will struggle with 4K timelines, effects, and color grading. The RX 6400's Geekbench OpenCL score of 32011 provides some acceleration, but the low G3D score suggests GPU-accelerated effects will be slow.

3D rendering: For CPU-based rendering (Blender Cycles, V-Ray CPU), the 12900KF is exceptional; the Cinebench R15 multi-core of 3469 and max-thread 3DMark of 11586 show high throughput. For GPU rendering, the RX 6400's 12 ray-tracing cores and 3.565 TFLOPS are inadequate for production work. The 4 GB memory limit also restricts scene complexity.

Software development: The CPU's Passmark integer math score of 138932 and extended instructions score of 33779 are ideal for compilation, code analysis, and virtualization. The 24 threads handle parallel builds efficiently. The GPU is irrelevant for most development tasks; the low DirectX scores (30-93) matter little for text editors, IDEs, and compilers.

Student and office work: The CPU's single-thread score of 4144 in Passmark ensures snappy response in word processors, spreadsheets, and web browsers. The GPU's Passmark G2D score of 722 is sufficient for 2D desktop rendering and video playback. This pairing is massively overkill for office tasks on the CPU side, but the GPU is adequate for basic productivity.

# Balance and Bottleneck — which component limits which workload, using percentiles and FPS scaling as evidence

The data shows a textbook case of extreme bottlenecking. The CPU sits at the 88th percentile of all processors, while the GPU is at the 35th percentile. In any graphics-intensive workload, the GPU will be the limiting factor. The Passmark G3D score of 7673 is less than 18% of the CPU's average benchmark score of 42830 when normalized, indicating a massive disparity. In gaming, the GPU's 4 GB VRAM and 64-bit memory bus will cap frame rates well below what the CPU can feed. The CPU's single-thread performance (3DMark single-thread 1069, Passmark single-thread 4144) could drive hundreds of frames per second in CPU-bound scenarios, but the GPU's DirectX 12 score of 30 suggests it will struggle to maintain even 30 FPS in modern titles at ultra settings.

In CPU-bound workloads, the balance shifts entirely. For tasks like video encoding, 3D rendering, data compression (Passmark score 537785), and software compilation, the GPU plays a minimal role. Here, the CPU dominates, and the GPU's low compute is irrelevant. The combined percentile of 62 reflects the average of these two extremes, but it masks the severe imbalance. For a balanced system, the GPU should be at a similar percentile to the CPU; the delta of 53 percentile points (88 vs 35) indicates that the GPU will bottleneck the CPU in virtually every graphics task. The only scenario where this pairing makes sense is if the user prioritizes CPU-heavy workloads and only needs basic display output — but even then, the RX 6400's low scores suggest a cheaper, integrated solution might suffice, though the 12900KF has no integrated graphics.

# Gaming Performance — measured FPS by game and resolution from measuredFpsUltraByGame (or, if dataIsMeasured is false, frame expectations qualitatively from the benchmark scores and say the figures are estimates)

No measured FPS rows exist for this exact combination — the FACT PACK contains no measuredFps data. Therefore, all FPS figures discussed here are estimates derived from the benchmark scores, not measured results. The dataIsMeasured field is explicitly false, so these numbers are qualitative expectations based on the CPU's and GPU's relative performance.

Based on the GPU's Passmark G3D score of 7673 and its DirectX 11 score of 70, this pairing could plausibly handle esports titles (Counter-Strike 2, Valorant, League of Legends) at 1080p with medium-to-low settings, potentially reaching 60-100 FPS in the least demanding scenarios. However, the DirectX 12 score of 30 suggests that modern AAA games at 1080p ultra settings will likely fall below 30 FPS. The 4 GB VRAM is a hard constraint; games with high-resolution textures will exceed this limit, causing stuttering or texture pop-in. The 128.0 GB/s bandwidth will further limit performance in memory-heavy scenes.

The CPU's single-thread score of 1069 in 3DMark indicates it will never be the bottleneck in gaming at 1080p — it can feed frames far faster than the GPU can render them. At 1440p or 4K, the GPU's limitations become even more pronounced, as the lower pixel rate (74.27 GPixel/s) and texture rate (111.4 GTexel/s) will struggle to fill high-resolution frames. The ray-tracing cores are present, but given the FP32 throughput of 3.565 TFLOPS, any ray-traced game will likely see single-digit frame rates even at 1080p low settings. Overall, this is a 1080p low-to-medium settings gaming setup for older titles, with modern AAA gaming being a poor experience.

# Upgrade Path and Platform — socket, memory support, PCIe, PSU headroom from suggestedPsu/tdp, what a sensible next upgrade looks like

The platform is built around the Intel Socket 1700, which supports Alder Lake processors. The 12900KF supports both DDR4 and DDR5 memory in dual-channel mode, giving builders flexibility, though the lack of ECC support limits workstation use in error-sensitive environments. PCIe connectivity is Gen 4 with 20 lanes from the CPU, and the GPU uses a PCIe 4.0 x4 interface — this narrow x4 link is a potential bottleneck for the RX 6400, as it limits data transfer between the CPU and GPU, though the GPU's low compute means it rarely saturates even x4 bandwidth.

The PSU headroom is substantial. The CPU's TDP is 125 W, and the GPU's TDP is 53 W, with a suggested PSU of 250 W. A high-quality 500-650 W power supply would provide ample headroom for the current components and allow for a GPU upgrade. The primary upgrade path is clearly the GPU. The CPU has a 88th percentile ranking and can handle any modern GPU without bottlenecking — a high-end card like the NVIDIA RTX PRO 6000 Blackwell Server (listed as a rival at a similar score, but that is a server part) or a mainstream gaming GPU would be a massive improvement over the RX 6400's 35th percentile performance. However, the 250 W suggested PSU would need to be upgraded to accommodate a more powerful GPU, as most modern mid-range cards require 450-550 W systems.

The socket 1700 platform supports 12th-gen Alder Lake and potentially 13th/14th-gen Raptor Lake processors, meaning a future CPU upgrade could go to a higher-core-count variant, though the 12900KF is already near the top of its generation. Memory upgrades to faster DDR5 modules would benefit the CPU's memory bandwidth, but the current dual-channel configuration is already adequate. The most sensible next upgrade is to replace the RX 6400 with a GPU that has at least 8 GB of VRAM and a 256-bit memory bus, as the 4 GB/64-bit configuration is the system's primary weakness.

# FAQ — 5-7 Q&A pairs answerable from FACT PACK data (format: Q: ... A: ...)

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

A: The combined percentile is 62, which places this desktop configuration in the upper-mid tier of all systems, though the individual components are wildly different — the CPU is at the 88th percentile, while the GPU is at the 35th percentile.

Q: How does the Core i9-12900KF compare to its nearest rival, the Intel Core i9-12900?

A: The 12900KF has an average benchmark score of 42830, while the i9-12900 scores 42906, a difference of only -0.2%. This means the two processors are essentially identical in performance, with the non-F variant holding a negligible lead.

Q: What is the GPU's memory configuration and why might it be limiting?

A: The RX 6400 has 4 GB of GDDR6 memory on a 64-bit bus, providing 128.0 GB/s of bandwidth. This is a very small memory pool and narrow bus, which will limit performance in modern games and rendering applications that require more than 4 GB of VRAM.

Q: Does the RX 6400 support ray tracing?

A: Yes, it has 12 ray-tracing cores, but the overall compute performance (3.565 TFLOPS FP32) is low, so ray-traced workloads will likely run at very low frame rates even at 1080p.

Q: What is the TDP of the CPU and GPU, and what PSU is suggested?

A: The CPU has a TDP of 125 W, and the GPU has a TDP of 53 W. AMD suggests a 250 W power supply for the system, which indicates this is a low-power configuration overall.

Q: What memory types does the 12900KF support?

A: The CPU supports both DDR4 and DDR5 memory in dual-channel mode. ECC memory is not supported.

Q: What is the GPU's DirectX 12 Passmark score, and what does it imply?

A: The DirectX 12 score is 30, which is very low. This implies the GPU struggles with modern low-level API workloads, making it poorly suited for current AAA games that rely heavily on DX12.

# Who Should Build It — target users and industries (gamers at specific resolutions, content creators, developers, students, small business workstations) tied strictly to the measured performance

This pairing targets a very specific niche: users who need extreme CPU compute power but have minimal GPU requirements. Gamers at 1080p playing older or less demanding titles (based on the GPU's low DirectX 11 score of 70) might find it acceptable, but modern AAA gaming at 1080p ultra will be disappointing, as the 4 GB VRAM is insufficient. Content creators who work primarily with CPU-based rendering — the Cinebench R23 multi-core score of 34420 shows this is a rendering monster — and only need basic display output could benefit. Video editors using software that leverages the CPU for encoding (Passmark data compression 537785) will see fast exports, but GPU-accelerated effects will be limited by the RX 6400's OpenCL score of 32011.

Software developers will appreciate the 16 cores and 24 threads for compilation; the Passmark integer math score of 138932 indicates fast code builds. The GPU is irrelevant for most development tasks, so the RX 6400's low scores are not a hindrance. Students and office workers will find the system overkill for the CPU but adequate for the GPU; the Passmark G2D score of 722 handles 2D desktop rendering fine, and the single-thread score of 4144 ensures snappy application response. Small business workstations running CPU-intensive simulations, data analysis, or database workloads (Passmark random string sorting 57177) will benefit, provided no GPU acceleration is needed. For any user who occasionally plays modern games or does GPU-accelerated rendering, this pairing is strongly mismatched.

# Build Overview — what this CPU+GPU pairing is, its class (desktop/laptop from buildClass), and overall tier from the percentiles

This is a desktop-class build, as indicated by the buildClass field, combining the Intel Core i9-12900KF — a 16-core, 24-thread Alder Lake processor with a 5.20 GHz boost clock, 30 MB of L3 cache, and an 88th percentile ranking — with the AMD Radeon RX 6400 — a 4 GB GDDR6 graphics card with a 64-bit bus, 12 ray-tracing cores, and a 35th percentile ranking. The overall system tier, as measured by the combined percentile of 62, places it in the mid-range of all desktop configurations, but this number obscures the extreme asymmetry between the two components.

The 12900KF is a top-tier processor in its generation, with benchmark scores (Cinebench R23 multi-core 34420, Passmark multi-thread 40970) that rival the best desktop CPUs. The RX 6400, by contrast, is an entry-level GPU whose average benchmark score of 6001 places it alongside decade-old mobile and workstation parts. The build is best characterized as a high-performance CPU workstation with a placeholder GPU for basic display output. For users whose workloads are CPU-bound, this pairing delivers exceptional value in compute performance — the CPU's 88th percentile ranking ensures it can handle any productivity task. For graphics-bound workloads, the 35th percentile GPU will be the limiting factor, and the system will perform like a low-end gaming PC rather than the high-end workstation the CPU suggests.

In summary, this is a desktop platform with extreme compute potential in the CPU, constrained by a minimal GPU. The combined percentile of 62 reflects a system that is neither high-end nor low-end overall, but rather a lopsided configuration that requires a GPU upgrade to unlock its full potential. As it stands, it is a capable CPU workstation with a token graphics solution.

Rate My PC: Intel Core i9-12900KF + AMD Radeon RX 6400

Power Build

System Balance Analysis

Intel Core i9-12900KF

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

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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