SYSTEM ANALYZER

Rate My PC: Intel Core i9-12900HK + NVIDIA GeForce RTX 5090 Mobile

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

92 / 100
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Apex Performer

Top 8% 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

Intel Core i9-12900HK

26,469 Benchmark Score
Top 13% Market Ranking
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GRAPHICS CARD

NVIDIA GeForce RTX 5090 Mobile

45,152 Benchmark Score
Top 4% Market Ranking
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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

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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

# Intel Core i9-12900HK + NVIDIA GeForce RTX 5090 Mobile: A Hybrid-Architecture Processor Paired with a Flagship Mobile GPU

This build pairs a 2022-era hybrid mobile processor with a 2025 flagship mobile graphics solution, creating an unusual combination where the GPU is dramatically newer and more powerful than the CPU. Benchmark data shows the CPU sits at the 78th percentile among all processors, while the GPU commands the 84th percentile among all GPUs, with the combined configuration ranking at the 81st percentile overall. The pairing is classified as a laptop build, and the data indicates a significant performance delta between the two components that shapes every workload profile discussed below.

Upgrade Path and Platform

The Intel Core i9-12900HK uses the Intel BGA 1744 socket, which is a soldered mobile platform, meaning the processor is not user-replaceable in any conventional sense. This is a critical constraint for any potential upgrade path, as the socket is fixed to the laptop motherboard. The processor supports DDR4 and DDR5 memory through a dual-channel memory bus, giving laptop manufacturers flexibility in memory configuration, though ECC memory is not supported. PCIe connectivity comes from the CPU itself with Gen 4 and 20 lanes, which is the only PCIe interface listed for the processor.

The platform's thermal and power envelope is defined by the CPU's TDP of 45 watts, which classifies this as a high-performance mobile processor. The NVIDIA GeForce RTX 5090 Mobile carries a TDP of 95 watts, bringing the combined CPU-plus-GPU thermal load to approximately 140 watts before accounting for any other system components. The GPU uses an IGP slot width with no power connectors listed, indicating it is designed to draw power through the motherboard rather than external connectors, which is typical for mobile implementations. No suggested PSU figure is provided, and given the laptop form factor, a traditional desktop PSU upgrade path does not apply.

A sensible next upgrade for this platform would involve increasing memory capacity or moving to higher-speed DDR5 modules, since the memory bus is dual-channel and the controller supports both DDR4 and DDR5. Storage upgrades are possible through the PCIe Gen 4 lanes, though the exact number of available M.2 slots is not specified in the data. The integrated Iris Xe 96EU graphics provide a fallback display output, but the primary graphics workload clearly falls to the discrete RTX 5090 Mobile. Given the soldered CPU and the laptop form factor, the realistic upgrade path is limited to memory and storage rather than processor or graphics replacement.

GPU Analysis

The NVIDIA GeForce RTX 5090 Mobile is built on the Blackwell 2.0 architecture using the GB203 chip, manufactured on a 5 nm process at TSMC. The GPU contains 45,600 million transistors on a 378 mm² die, yielding a transistor density of 120.6 million per square millimeter. Memory configuration is substantial: 24 GB of GDDR7 on a 256-bit bus, delivering 896.0 GB/s of memory bandwidth. Clock speeds are listed at 990 MHz base and 1515 MHz boost, with memory running at 1750 MHz or 28 Gbps effective.

The compute configuration includes 10,496 shading units, 328 texture mapping units, and 112 raster output units. Ray tracing hardware is present with 82 RT cores, and tensor processing is handled by 328 tensor cores. Pixel fill rate is 169.7 GPixel/s, texture fill rate is 496.9 GTexel/s, and FP32 performance is rated at 31.80 TFLOPS with FP16 also at 31.80 TFLOPS at a 1:1 ratio. The GPU supports PCIe 5.0 x16 for the bus interface, with display outputs described as portable device dependent.

Benchmark results show the GPU scoring 5,871 in 3DMark Steel Nomad DX12, which is a modern DirectX 12 workload. Geekbench scores are 201,834 for OpenCL and 198,405 for Vulkan, indicating strong compute performance across both APIs. Passmark scores include 30,034 for G3D and 13,401 for GPU compute, with DirectX-specific tests showing 183 for DX10, 269 for DX11, and 138 for DX12. The average benchmark score is 45,152, placing the GPU at the 84th percentile among all GPUs. Nearest rivals include the AMD Radeon Pro 5500 XT at 45,384 (0.5% higher), NVIDIA GeForce RTX 4070 Ti at 44,795 (0.8% lower), Intel Arc A730M at 45,592 (1% higher), and NVIDIA RTX 5880 Ada Generation at 45,972 (1.8% higher). These deltas are all within roughly 2%, indicating the RTX 5090 Mobile performs competitively with these desktop and mobile parts despite the mobile power envelope.

Benchmark Performance

The Intel Core i9-12900HK delivers a spread of benchmark scores that reveal its hybrid architecture characteristics. In 3DMark tests, the processor scores 1,025 in single-thread, 1,942 in 2-threads, 3,537 in 4-threads, 5,172 in 8-threads, 6,441 in 16-threads, and 6,829 in max-threads. The scaling from 1 to 16 threads shows consistent gains, with the max-threads score only slightly above the 16-thread result, suggesting diminishing returns beyond 16 active threads. Cinebench results show 242 in R15 single-core and 2,786 in R15 multi-core, 1,264 in R20 single-core and 8,958 in R20 multi-core, and 1,673 in R23 single-core and 18,288 in R23 multi-core. The R23 multi-core score of 18,288 is roughly 11 times the single-core score, which is notable for a 14-core, 20-thread processor.

Passmark results are extensive, with integer math at 89,527, floating point math at 63,572, data compression at 294,908, data encryption at 17,445, extended instructions at 17,583, prime number finding at 102, random string sorting at 32,983, physics at 1,673, and multithread at 25,697. The single-thread Passmark score is 3,567, matching the single-thread score listed separately. The average benchmark score is 26,469, placing the CPU at the 78th percentile among all CPUs. Nearest rivals include the Intel Core i7-1280P at 26,469 (0% delta), AMD Ryzen 5 8640U at 26,462 (0% delta), AMD Ryzen 7 7435HS at 26,402 (0.3% higher), and AMD EPYC 8024P at 26,555 (0.3% lower). The CPU is effectively tied with these parts in average score, despite the i9-12900HK being a higher-tier product on paper.

The GPU's average benchmark score of 45,152 is significantly higher than the CPU's 26,469, reinforcing the performance disparity between the two components. The combined percentile of 81 sits between the CPU's 78 and the GPU's 84, indicating the overall system is somewhat closer to the CPU's position in the performance hierarchy. The data shows a clear picture: this is a system where the GPU substantially outclasses the CPU in raw benchmark averages, which has implications for workload distribution discussed in the next section.

Balance and Bottleneck

The benchmark data indicates a pronounced imbalance between the CPU and GPU, with the GPU's average score of 45,152 being roughly 71% higher than the CPU's 26,469. The GPU's 84th percentile position versus the CPU's 78th percentile reinforces this gap, though the difference is less dramatic in percentile terms than in raw scores. In gaming workloads, this configuration is likely GPU-bound at higher resolutions where the RTX 5090 Mobile's 24 GB VRAM and 896.0 GB/s bandwidth are fully utilized, but the CPU may become the limiting factor in CPU-intensive scenarios.

The CPU's single-thread performance of 1,025 in 3DMark and 1,673 in Cinebench R23 suggests it can handle modern game engines, but the 78th percentile position means it is not at the top tier for single-thread responsiveness. The GPU's 3DMark Steel Nomad score of 5,871 places it well above the CPU's 3DMark scores in absolute terms, but the lack of measured FPS data for this combination means any bottleneck analysis must be inferred from the benchmark scores alone. The CPU's 3DMark 16-thread score of 6,441 versus the max-threads score of 6,829 shows that the 20-thread configuration provides only a modest gain over 16 threads, suggesting the efficiency cores contribute limited additional throughput in heavily threaded workloads.

For productivity tasks, the CPU's Cinebench R23 multi-core score of 18,288 is strong but not exceptional for a 14-core part, and the Passmark multithread score of 25,697 places it in the mid-range of the percentile distribution. The GPU's compute scores, including 201,834 in OpenCL and 198,405 in Vulkan, indicate it can offload significant parallel workloads from the CPU, potentially mitigating CPU bottlenecks in compute-heavy applications. However, the CPU's Passmark data encryption score of 17,445 and extended instructions score of 17,583 show it retains capabilities that the GPU cannot fully replace, meaning some workloads will still be CPU-limited.

FAQ

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

A: The combined configuration ranks at the 81st percentile among all systems, with the CPU at the 78th percentile and the GPU at the 84th percentile.

Q: How much memory bandwidth does the RTX 5090 Mobile provide?

A: The GPU offers 896.0 GB/s of memory bandwidth through a 256-bit bus with 24 GB of GDDR7 memory.

Q: What is the CPU's Cinebench R23 multi-core score?

A: The Intel Core i9-12900HK scores 18,288 in Cinebench R23 multi-core and 1,673 in single-core.

Q: Does this system support ECC memory?

A: No, ECC memory is not supported by the Intel Core i9-12900HK, which supports DDR4 and DDR5 through a dual-channel memory bus.

Q: What is the GPU's 3DMark Steel Nomad DX12 score?

A: The RTX 5090 Mobile scores 5,871 in 3DMark Steel Nomad DX12.

Q: How does the GPU compare to its nearest rival in average benchmark score?

A: The GPU's average score of 45,152 is nearly identical to the NVIDIA GeForce RTX 4070 Ti at 44,795, which is 0.8% lower, and the AMD Radeon Pro 5500 XT at 45,384, which is 0.5% higher.

Q: What is the CPU's process node and architecture?

A: The Intel Core i9-12900HK uses the Alder Lake architecture on a 10 nm process at Intel, with 14 cores and 20 threads.

Who Should Build It

This configuration targets users who prioritize graphics performance above all else, given the GPU's 84th percentile standing versus the CPU's 78th percentile. Gamers seeking high-refresh experiences at resolutions where the GPU's 24 GB VRAM and 896.0 GB/s bandwidth can be fully leveraged will find this system suitable, though the CPU's single-thread scores suggest it may limit frame rates in less GPU-demanding titles. Content creators working with GPU-accelerated rendering pipelines will benefit from the RTX 5090 Mobile's compute scores, particularly the 201,834 OpenCL and 198,405 Vulkan results, while the CPU's 18,288 Cinebench R23 multi-core score handles compilation and encoding tasks adequately.

Developers building and testing GPU-intensive applications, such as machine learning models or real-time graphics, will appreciate the RT cores and tensor cores, with 82 and 328 respectively, alongside the 31.80 TFLOPS FP32 performance. Students in computer graphics or data science programs could leverage the large VRAM pool for projects that exceed typical laptop capabilities, though the CPU's 78th percentile position means CPU-bound workloads like code compilation will not be class-leading. Small business workstations requiring GPU compute for tasks like video transcoding or 3D visualization would see strong performance, but the CPU's Passmark multithread score of 25,697 indicates it is not a top-tier multi-core workstation part. The laptop form factor limits upgradeability, so this build suits users who expect to replace the entire system rather than incrementally upgrade components.

CPU Analysis

The Intel Core i9-12900HK is a 14-core, 20-thread processor from the Core 12th Gen series, using the Alder Lake architecture on the Alder Lake-H codename. It is manufactured on a 10 nm process at Intel, with a die size of 217 mm². The base clock is 2.50 GHz with a boost clock of 5.00 GHz, and the TDP is 45 watts. The cache hierarchy includes 80 KB of L1 per core, 1.25 MB of L2 per core, and 24 MB of shared L3 cache. The processor is multiplier unlocked, part number SRLD3, and was released on January 3, 2022, with a production status of Active. It includes Iris Xe 96EU integrated graphics and supports PCIe Gen 4 with 20 lanes from the CPU.

Benchmark data shows the processor's scaling characteristics: 3DMark scores range from 1,025 single-thread to 6,829 max-threads, with the 16-thread score at 6,441 nearly matching the max-threads result. Cinebench R23 multi-core at 18,288 is 10.9 times the single-core score of 1,673, indicating good multi-threaded scaling across the hybrid core arrangement. The Passmark suite reveals workload-specific strengths: integer math at 89,527 and floating point math at 63,572 are strong, while prime number finding at 102 is notably low, suggesting the architecture is not optimized for that particular workload. Data compression at 294,908 is exceptional, and random string sorting at 32,983 indicates solid memory handling.

The CPU's average benchmark score of 26,469 places it at the 78th percentile, with nearest rivals including the Intel Core i7-1280P at identical 26,469, AMD Ryzen 5 8640U at 26,462, AMD Ryzen 7 7435HS at 26,402, and AMD EPYC 8024P at 26,555. The 0% to 0.3% deltas mean these processors are statistically indistinguishable in average performance, despite the i9-12900HK's higher core count and boost clock. This suggests the hybrid architecture's efficiency cores contribute less than the performance cores in many workloads, or that thermal constraints in mobile implementations limit sustained performance.

Build Overview

This build combines a 14-core hybrid mobile processor with a flagship 24 GB mobile GPU in a laptop form factor. The Intel Core i9-12900HK, released in early 2022, represents Intel's first generation of hybrid mobile processors, while the NVIDIA GeForce RTX 5090 Mobile, released in March 2025, is a third-generation Blackwell architecture GPU. The performance data shows the GPU dominating the CPU in average benchmark scores by a significant margin, with the combined configuration ranking at the 81st percentile overall. The CPU's 78th percentile and GPU's 84th percentile positions indicate this is a high-performance laptop, but not at the absolute top tier for either component category.

The pairing is notable for the generational gap between components: the CPU uses a 10 nm Intel process, while the GPU uses a 5 nm TSMC process, reflecting the different manufacturing timelines. The CPU's 45 W TDP and GPU's 95 W TDP combine for a substantial thermal budget, which in a laptop form factor requires robust cooling solutions. The GPU's IGP slot width with no power connectors indicates a soldered mobile design, consistent with the CPU's BGA 1744 socket. This is a purpose-built mobile workstation or gaming laptop configuration, not a user-upgradeable desktop system.

Usage Scenarios

High-refresh gaming: The RTX 5090 Mobile's 24 GB VRAM and 896.0 GB/s bandwidth, combined with its 84th percentile position, suggest strong potential for high-refresh gaming at resolutions that can utilize the large frame buffer. The CPU's single-thread score of 1,025 in 3DMark may limit frame rates in CPU-bound titles, but GPU-bound scenarios should see excellent performance.

Streaming: The GPU's tensor cores (328) and RT cores (82) can accelerate encoding and streaming workloads, while the CPU's Passmark multithread score of 25,697 provides adequate headroom for concurrent encoding and gameplay. The CPU's data encryption score of 17,445 supports secure streaming protocols.

Video editing: GPU-accelerated effects and rendering will benefit from the 31.80 TFLOPS FP32 performance and the 201,834 OpenCL score. The CPU's Cinebench R23 multi-core score of 18,288 handles timeline processing, though it is not class-leading.

3D rendering: The GPU's 5,871 3DMark Steel Nomad score and 13,401 Passmark GPU compute score indicate strong rendering performance for GPU-based renderers. The CPU's 18,288 R23 multi-core score supports CPU-based rendering but is mid-range.

Software development: The CPU's integer math score of 89,527 and data compression score of 294,908 are beneficial for compilation and data handling, but the 78th percentile position means build times will not be top-tier. The GPU's compute capabilities can accelerate certain development tasks like test parallelization.

Student and office work: The integrated Iris Xe 96EU provides basic graphics for daily tasks, while the discrete GPU is overkill for standard office applications. The CPU's single-thread score of 3,567 in Passmark ensures responsive general use, but this configuration is far more powerful than needed for typical student workloads.

Gaming Performance

No measured FPS data exists for this exact CPU and GPU combination — the FACT PACK contains no measured FPS rows, so all gaming performance figures discussed here are estimates derived from the benchmark scores. The GPU's 84th percentile position and 3DMark Steel Nomad score of 5,871 indicate strong DirectX 12 gaming performance, while the CPU's 78th percentile single-thread performance suggests it can feed the GPU adequately in most titles. Passmark DirectX scores are 324 for DX9, 183 for DX10, 269 for DX11, and 138 for DX12, which are raw compute scores rather than game-specific FPS numbers.

At 1080p resolution, the CPU may become the limiting factor in esports titles where high frame rates depend on single-thread performance, given the CPU's 3DMark single-thread score of 1,025. At 1440p and 4K, the GPU's 24 GB VRAM and 896.0 GB/s bandwidth should allow it to dominate, with the GPU's average benchmark score of 45,152 far exceeding the CPU's 26,469. The GPU's 82 RT cores and 328 tensor cores suggest strong ray tracing and DLSS performance, which could offset CPU limitations in modern titles. Without measured FPS data, these estimates should be treated as indicative rather than definitive, but the performance hierarchy between CPU and GPU is clear from the benchmark scores.