SYSTEM ANALYZER

Rate My PC: Intel Core i9-12900KS + NVIDIA GeForce RTX 5080

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

95 / 100
ULTIMATE READY

Apex Performer

Top 5% 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
93%
VS
GPU
97%
PROCESSOR

Intel Core i9-12900KS

45,094 Benchmark Score
Top 7% Market Ranking
View Full Specs →
GRAPHICS CARD

NVIDIA GeForce RTX 5080

56,083 Benchmark Score
Top 3% 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

The Intel Core i9-12900KS and NVIDIA GeForce RTX 5080 pairing represents a high-end desktop combination where a previous-generation flagship CPU meets a current-generation enthusiast GPU. The benchmark data indicates this is a balanced system, with the CPU holding an 89th percentile rank among all tested processors and the GPU at an 87th percentile rank among all tested graphics cards, resulting in a combined percentile of 88. The most critical caveat for this analysis is that the FACT PACK contains no measured FPS data for this exact combination; all gaming performance figures discussed here are estimates derived from the individual component benchmark scores, not from direct testing of the paired system.

CPU Analysis

The Intel Core i9-12900KS is a 16-core, 24-thread processor based on the Alder Lake architecture, manufactured on Intel's 10 nm process node. It operates with a base clock of 3.40 GHz and a boost clock of 5.50 GHz, with a TDP of 150 W. The cache hierarchy comprises 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 30 MB of shared L3 cache. The processor supports both DDR4 and DDR5 memory in a dual-channel configuration, providing a memory bandwidth of 76.8 GB/s, and includes ECC memory support. The CPU is built for the Intel Socket 1700 platform and utilizes PCIe Gen 5 with 16 lanes available from the CPU.

Benchmark results show strong scaling from single-threaded to multi-threaded workloads. The 3DMark tests demonstrate a progression from 1121 in single-thread to 2212 in 2-thread, 4320 in 4-thread, 7872 in 8-thread, 10316 in 16-thread, and reaching 11897 in max-thread tests. This scaling pattern indicates efficient utilization of the hybrid core architecture, with performance increasing by approximately 9.6 times from single-thread to 16-thread workloads, showing that the core design is well-suited for both lightly-threaded tasks and heavily parallel workloads.

Cinebench results reinforce this dual-use capability. The Cinebench R23 multicore score of 36859 is exceptionally high, while the single-core score of 5203 also ranks at the top tier. In the Geekbench suite, the processor achieves 18538 in multicore and 2408 in single-core tests. The Passmark suite shows specialized strengths: data compression scores 563709, data encryption reaches 31403, and floating-point math hits 111429. Integer math performance is particularly strong at 147575, while the extended instructions score of 35089 indicates solid SIMD processing capability. These results collectively suggest the CPU excels in productivity applications, content creation, and scientific computing tasks that benefit from high core counts and strong per-core performance.

Comparing to nearest rivals, the i9-12900KS has an average benchmark score of 45094, placing it virtually tied with the AMD EPYC 4344P (45122, deltaPct -0.1) and about 0.5% ahead of the Intel Core i5-14600 (44889). It leads the AMD Ryzen 5 7500X3D by 1.2% (44573) and the Intel Core Ultra X9 388H by 1.4% (44466). This indicates that while the i9-12900KS is a capable performer, it is not the undisputed leader in its performance bracket; it sits at the top of a tightly packed group of competitors.

Balance and Bottleneck

The combination of the i9-12900KS and RTX 5080 creates a system where the bottleneck shifts depending on the workload type. The CPU's 89th percentile ranking and the GPU's 87th percentile ranking are remarkably close, suggesting that neither component dramatically outweighs the other in general-purpose computing. However, the specific benchmark scores reveal where each component dominates.

For multi-threaded CPU workloads, the i9-12900KS demonstrates strong performance with a Passmark multithread score of 43698 and a 3DMark max-threads score of 11897. These scores indicate that in CPU-bound scenarios like video encoding, 3D rendering, or software compilation, the processor will be the primary driver of performance, and the GPU will not be the limiting factor. In contrast, the RTX 5080's Passmark G3D score of 36565 and 3DMark Steel Nomad DX12 score of 8637 show that in GPU-intensive tasks like gaming at high resolutions or GPU-accelerated rendering, the graphics card will dictate the performance ceiling.

The bottleneck analysis is nuanced by the absence of measured FPS data. Without direct frame rate measurements, the balance must be inferred from the component scores. The CPU's single-thread performance (3DMark single-thread score of 1121, Cinebench R23 single-core of 5203) is strong enough to avoid becoming a bottleneck in most gaming scenarios, where the GPU is typically the limiting factor at higher resolutions. Conversely, the GPU's massive compute capability (FP32 of 56.28 TFLOPS) and memory bandwidth (960.0 GB/s) mean that in compute-heavy workloads the CPU may struggle to feed data to the GPU fast enough, particularly in scenarios with high data throughput requirements.

Upgrade Path and Platform

The i9-12900KS uses the Intel Socket 1700 platform, which represents a mature socket with the processor being part of the 12th generation Core series. The platform supports both DDR4 and DDR5 memory, giving builders flexibility in memory selection, though the dual-channel configuration and 76.8 GB/s bandwidth cap the memory throughput. The CPU provides 16 PCIe Gen 5 lanes, which is sufficient for a single high-bandwidth GPU and one or more NVMe storage devices.

The RTX 5080 has a TDP of 360 W, and the suggested PSU for this GPU is 750 W. When combined with the CPU's 150 W TDP, the total power draw for the core components reaches 510 W, leaving approximately 240 W of headroom in the suggested PSU for other system components such as storage, cooling, and peripherals. This headroom is adequate for a typical high-end build without requiring an oversized power supply.

A sensible next upgrade path for this system would focus on the GPU, as the CPU's Socket 1700 platform is nearing the end of its upgrade cycle. The RTX 5080's predecessor is the GeForce 40 series, and its successor is the GeForce 60 series, indicating that future GPU upgrades will likely come from newer generations. For the CPU, the 12th generation is not the latest, and a platform change would be required to move to a newer socket. However, the current CPU's performance (89th percentile) remains competitive, so a GPU upgrade would provide more tangible performance gains in graphics-bound workloads.

Who Should Build It

This system is suited for enthusiasts and professionals who demand high performance in both CPU-intensive and GPU-intensive tasks. For gamers targeting high-refresh-rate displays, the combination of strong single-thread CPU performance (Cinebench R23 single-core score of 5203) and the GPU's massive compute capability (56.28 TFLOPS) provides the foundation for high frame rates, though the absence of measured FPS data means actual gaming performance must be estimated from these scores.

Content creators working with video editing, 3D rendering, or complex simulations will benefit from the CPU's 16 cores and 24 threads, as evidenced by the Cinebench R23 multicore score of 36859 and Passmark multithread score of 43698. The GPU's 16 GB of GDDR7 memory and 960.0 GB/s bandwidth support large texture sets and high-resolution rendering workloads. Software developers compiling large codebases will appreciate the integer math score of 147575 and data compression score of 563709, which indicate strong performance in compilation and data processing tasks.

Students and small business users may find this system overkill for typical office workloads, but the data shows it handles such tasks effortlessly. The Passmark single-thread score of 4330 and Geekbench single-core score of 2408 ensure snappy response in everyday applications, while the high core count allows for smooth multitasking across numerous applications simultaneously.

Benchmark Performance

The CPU's average benchmark score is 45094, placing it in the 89th percentile of all CPUs. Its nearest rival, the AMD EPYC 4344P, scores 45122, a minimal 0.1% difference. The Intel Core i5-14600 trails by 0.5% with a score of 44889, while the AMD Ryzen 5 7500X3D is 1.2% behind at 44573, and the Intel Core Ultra X9 388H is 1.4% behind at 44466. This grouping shows that the i9-12900KS is at the leading edge of its performance class but holds only a narrow margin over its closest competitors.

The GPU's average benchmark score is 56083, placing it in the 87th percentile of all GPUs. The AMD Radeon 8060S is the closest rival with a score of 55757, a delta of 0.6%. The AMD Radeon RX 6750 GRE 12 GB scores 55698 (0.7% behind), and the AMD Radeon Pro W5700X scores 54828 (2.3% behind). On the higher side, the AMD Radeon RX 9070 GRE leads by 2.2% with a score of 57367. This places the RTX 5080 in a competitive position, though not at the absolute top of the GPU hierarchy.

Specific GPU benchmark scores include a 3DMark Steel Nomad DX12 score of 8637, Geekbench OpenCL score of 235901, and Geekbench Vulkan score of 255450. The Passmark suite shows a G3D score of 36565 and GPU compute score of 21789. These numbers, combined with the CPU scores, paint a picture of a system that is highly capable across a wide range of applications, with the combined 88th percentile rank reflecting the overall balance of the pairing.

GPU Analysis

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture using the GB203 chip, manufactured on TSMC's 5 nm process node. The chip contains 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. The GPU operates at a base clock of 2295 MHz with a boost clock of 2617 MHz, and the memory runs at 1875 MHz (30 Gbps effective). The 16 GB of GDDR7 memory is connected via a 256-bit bus, providing a bandwidth of 960.0 GB/s. The GPU includes 10752 shading units, 336 texture mapping units, and 112 render output units. Ray tracing is handled by 84 RT cores, while AI acceleration is provided by 336 tensor cores.

The GPU's rendering capabilities are substantial. The pixel rate of 293.1 GPixel/s and texture rate of 879.3 GTexel/s indicate high fill rates for rasterization tasks. The FP32 compute performance of 56.28 TFLOPS, with FP16 also at 56.28 TFLOPS (1:1 ratio), demonstrates strong compute throughput for both standard and reduced-precision workloads. These specifications translate to benchmark scores that show the GPU's strengths: the 3DMark Steel Nomad DX12 score of 8637 reflects modern game engine performance, while the Geekbench Vulkan score of 255450 and OpenCL score of 235901 indicate robust compute and graphics API support.

For rendering workloads, the combination of 16 GB VRAM and 960.0 GB/s bandwidth allows for large scene data and high-resolution textures. The RT cores enable hardware-accelerated ray tracing, and the tensor cores facilitate AI-based features like DLSS and other neural rendering techniques. The GPU's directx 12 Ultimate support (12_2), Vulkan 1.4, and OpenGL 4.6 ensure compatibility with modern graphics APIs. The 5 nm process node contributes to the GPU's efficiency and performance density, though the TDP of 360 W requires adequate cooling and power delivery.

Gaming Performance

Important note: There is no measured FPS data for the Intel Core i9-12900KS + NVIDIA GeForce RTX 5080 combination in the FACT PACK. All gaming performance figures discussed below are estimates based on the individual component benchmark scores, not direct measurements of this system.

Based on the CPU's single-thread performance (Cinebench R23 single-core score of 5203, 3DMark single-thread score of 1121) and the GPU's compute and rendering capabilities (FP32 of 56.28 TFLOPS, pixel rate of 293.1 GPixel/s), this system is expected to deliver high frame rates in most gaming scenarios. The CPU's strong single-thread performance ensures it can keep up with game logic and physics processing, while the GPU's massive fill rates and compute throughput handle the graphics rendering.

At 1080p resolution, the CPU's single-thread performance becomes more critical, and the i9-12900KS should provide sufficient headroom to avoid bottlenecking the RTX 5080 in most titles. At 1440p and 4K resolutions, the GPU becomes the primary limiting factor, and the RTX 5080's 16 GB VRAM and 960.0 GB/s bandwidth are well-suited for high-resolution textures and modern game engines. The GPU's 84 RT cores enable ray tracing at playable frame rates, while the 336 tensor cores support DLSS performance-enhancing features.

The absence of measured FPS data means these are estimates, but the component benchmarks suggest a system capable of high-refresh-rate gaming at 1440p and solid 4K performance. The CPU's 89th percentile rank and GPU's 87th percentile rank indicate that this pairing is well-matched for gaming, with neither component likely to be a significant bottleneck in most scenarios.

FAQ

Q: What is the combined performance percentile of this CPU-GPU pair?

A: The combined percentile for the Intel Core i9-12900KS and NVIDIA GeForce RTX 5080 is 88, based on the CPU's 89th percentile rank and GPU's 87th percentile rank.

Q: How does the CPU compare to its nearest rival, the AMD EPYC 4344P?

A: The i9-12900KS has an average benchmark score of 45094, which is 0.1% lower than the AMD EPYC 4344P's score of 45122, making them statistically tied in performance.

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

A: The RTX 5080 has 16 GB of GDDR7 memory on a 256-bit bus, providing a memory bandwidth of 960.0 GB/s.

Q: Does the CPU support ECC memory?

A: Yes, the Intel Core i9-12900KS supports ECC memory, along with both DDR4 and DDR5 memory types in a dual-channel configuration.

Q: What is the suggested power supply wattage for this GPU?

A: The suggested PSU for the NVIDIA GeForce RTX 5080 is 750 W, which accommodates the GPU's 360 W TDP and leaves room for other components.

Q: How does the GPU perform in compute benchmarks relative to its rivals?

A: The RTX 5080 has an average benchmark score of 56083, which is 0.6% ahead of the AMD Radeon 8060S and 2.2% behind the AMD Radeon RX 9070 GRE.

Q: What is the CPU's boost clock speed?

A: The Intel Core i9-12900KS has a boost clock of 5.50 GHz, with a base clock of 3.40 GHz.

Usage Scenarios

High-refresh gaming: The CPU's single-thread performance (Cinebench R23 single-core score of 5203) and GPU's compute power (56.28 TFLOPS) suggest strong 1080p and 1440p gaming performance, with the GPU's 16 GB VRAM supporting high-resolution textures. The absence of measured FPS data means these are estimates, but the component scores indicate the system can drive high refresh rates in competitive titles.

Streaming: The CPU's 16 cores and 24 threads, with a Passmark multithread score of 43698, provide ample processing power for simultaneous game encoding and streaming workloads. The GPU's NVENC capabilities, supported by 336 tensor cores, can offload encoding tasks, though this is not directly measured in the benchmark data.

Video editing: The Cinebench R23 multicore score of 36859 and Passmark floating-point math score of 111429 indicate strong performance in video rendering and effects processing. The GPU's 16 GB VRAM and 960.0 GB/s bandwidth support large video timelines and GPU-accelerated effects.

3D rendering: The CPU's multicore performance (3DMark max-threads score of 11897) and the GPU's FP32 compute of 56.28 TFLOPS make this system well-suited for CPU-based and GPU-accelerated rendering. The GPU's 84 RT cores enable hardware-accelerated ray tracing in render engines that support it.

Software development: The CPU's integer math score of 147575 and data compression score of 563709 indicate fast compilation and data processing. The 16 cores and 24 threads allow for parallel builds, while the CPU's 89th percentile rank ensures it keeps pace with modern development workloads.

Student and office work: The CPU's single-thread performance (Geekbench single-core score of 2408) and Passmark single-thread score of 4330 provide responsive application performance. The system handles office tasks with ease, though the high-end components are more than necessary for typical productivity workloads.