SYSTEM ANALYZER

Rate My PC: Intel Core i9-12900 + NVIDIA GeForce RTX 4090

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Build Configuration

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PROCESSOR (CPU)

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GRAPHICS CARD (GPU)

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95 Score

Top 5% Ranking

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%

GPU

97%

PROCESSOR

Intel Core i9-12900

42,906 Benchmark Score

Top 7% Market Ranking

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GRAPHICS CARD

NVIDIA GeForce RTX 4090

60,347 Benchmark Score

Top 3% Market Ranking

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Market Position

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Budget

0-30

Mid-Range

30-60

High-End

60-85

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85-100

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Your system is in the top tier. You can run any modern game at maximum settings.

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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 i9-12900 + NVIDIA GeForce RTX 4090: A Mismatched Pairing

This build pairs Intel's 12th-generation flagship desktop processor with NVIDIA's top-tier Ada Lovelace GPU. The Core i9-12900 sits in the 88th percentile of all CPUs, while the RTX 4090 also lands in the 88th percentile of all GPUs. The combined build percentile is 88. The CPU uses the Intel Socket 1700 platform with the Alder Lake architecture, built on Intel's 10 nm process with a die size of 215 mm². The GPU is based on the AD102 chip on TSMC's 5 nm process with 76,300 million transistors across a 609 mm² die. No measured FPS rows exist for this exact combination — the FACT PACK contains no measuredFps data — so all frame rates discussed in the gaming section are estimates derived from benchmark scores rather than direct gameplay measurements.

Upgrade Path and Platform

The Intel Core i9-12900 uses the Intel Socket 1700 platform, which supports both DDR4 and DDR5 memory through a dual-channel memory bus. Memory bandwidth is rated at 76.8 GB/s. The platform supports ECC memory, which is unusual for a consumer desktop chip and could appeal to users running error-sensitive workloads. PCIe connectivity is Gen 5 with 16 lanes from the CPU, providing ample bandwidth for the latest storage devices and expansion cards. The integrated UHD Graphics 770 offers a basic display output fallback if the discrete GPU is removed or fails.

The CPU's TDP is 65 W, which is modest for a 16-core, 24-thread processor. This low thermal design power means a capable air cooler or a modest liquid cooler will suffice for stock operation. The GPU, however, demands significantly more power with a 450 W TDP and a suggested PSU of 850 W. The GPU uses a single 16-pin power connector and occupies a triple-slot width, measuring 304 mm in length, 137 mm in height, and 61 mm in width. Builders must ensure their cases have adequate clearance for this large card.

For a sensible next upgrade, the CPU is unlocked, so overclocking via the multiplier is possible on Z-series motherboards. However, given the 65 W TDP, the headroom for substantial overclocking may be limited by the stock cooling solution. The platform supports both DDR4 and DDR5, so users can choose between cheaper DDR4 modules or faster DDR5 kits depending on motherboard selection. The GPU is listed as end-of-life production status, with the GeForce 50 series as its successor, so future upgrades would involve moving to that newer generation. The CPU remains active in production, meaning it is still available for new builds or replacements.

The RTX 4090's 850 W suggested PSU leaves headroom for the 65 W CPU and other components, but users should verify their PSU has the required 16-pin connector or use the included adapter. The PCIe 4.0 x16 bus interface on the GPU is fully compatible with the CPU's Gen 5 lanes, though it will operate at the lower Gen 4 speed. This is not a bottleneck in practice, as the GPU's bandwidth requirements are met by PCIe 4.0.

Gaming Performance

Since the FACT PACK contains no measured FPS data for this CPU+GPU combination, all gaming performance figures are estimates derived from the benchmark scores. The GPU's 3DMark Steel Nomad DX12 score of 9223 and PassMark G3D score of 38194 indicate extremely high rasterization performance. The GPU's PassMark DirectX 12 score of 150 and DirectX 11 score of 326 suggest strong API efficiency, though these PassMark DirectX scores are not directly comparable to FPS numbers.

At 1080p resolution, this pairing would likely produce frame rates well above 144 Hz in most titles, but the CPU's single-thread performance may become the limiting factor in esports titles that rely heavily on single-core speed. The CPU's Cinebench R23 single-core score of 1825 and PassMark single-thread score of 4003 indicate strong but not class-leading single-thread performance. At 1440p and 4K, the GPU becomes the primary determinant of frame rates, and the RTX 4090's massive compute resources would push high frame rates even at ultra settings.

The GPU's 82.58 TFLOPS FP32 performance and 1.01 TB/s memory bandwidth provide the raw throughput needed for demanding modern titles. Ray tracing performance benefits from 128 RT cores, while DLSS and other AI features use the 512 tensor cores. The 24 GB GDDR6X memory with a 384-bit bus ensures textures and geometry load without stutter, even at 4K with maxed settings. For competitive gaming at high refresh rates, the CPU's 5.10 GHz boost clock helps maintain high minimum frame rates.

GPU Analysis

The NVIDIA GeForce RTX 4090 is built on the Ada Lovelace architecture using TSMC's 5 nm process. The chip contains 76,300 million transistors on a 609 mm² die, achieving a transistor density of 125.3M per mm². The GPU has 16,384 shading units, 512 texture mapping units, and 176 render output units. The 128 RT cores handle ray tracing workloads, while 512 tensor cores accelerate AI-based features like DLSS and other compute tasks. The base clock is 2235 MHz with a boost clock of 2520 MHz.

Memory configuration includes 24 GB of GDDR6X on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The memory clock runs at 1313 MHz with 21 Gbps effective speed. Pixel rate is 443.5 GPixel/s and texture rate is 1,290.2 GTexel/s. FP32 performance is 82.58 TFLOPS, with FP16 at the same 82.58 TFLOPS due to a 1:1 ratio. The GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs include 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Benchmark results place this GPU in the 88th percentile of all GPUs. The Geekbench OpenCL score of 255416 and Vulkan score of 271631 indicate strong compute and graphics performance. PassMark G3D score of 38194 and GPU compute score of 26613 confirm high throughput. The PassMark DirectX scores show 224 for DX10, 326 for DX11, 150 for DX12, and 397 for DX9. These scores suggest the GPU excels in compute-heavy workloads like rendering and scientific simulation, not just gaming. The 2D score of 1299 is less relevant for gaming but indicates solid desktop performance.

The nearest rivals in benchmark scores include the Intel Arc Pro A60 with a 0% delta, AMD Radeon Pro Vega 48 at 0.3% higher, AMD Radeon Pro W6600M at 2.5% lower, and AMD Radeon PRO V710 at 2.9% higher. These deltas are small, indicating the RTX 4090 sits in a tightly contested performance band despite its consumer flagship positioning. The GPU's production status is end-of-life, with the GeForce 50 series as its successor, so buyers should consider this when planning long-term support.

FAQ

Q: What socket does the Intel Core i9-12900 use?

A: The CPU uses Intel Socket 1700, which supports both DDR4 and DDR5 memory through a dual-channel bus with 76.8 GB/s bandwidth.

Q: How much VRAM does the RTX 4090 have?

A: The GPU has 24 GB of GDDR6X memory on a 384-bit bus, providing 1.01 TB/s of memory bandwidth.

Q: What is the power requirement for this build?

A: The CPU has a 65 W TDP, while the GPU has a 450 W TDP with a suggested PSU of 850 W. The GPU uses a single 16-pin power connector.

Q: Does the CPU support ECC memory?

A: Yes, the Intel Core i9-12900 supports ECC memory, which is beneficial for error-sensitive workloads like data processing or scientific computing.

Q: What is the PCIe generation supported by the CPU?

A: The CPU supports PCIe Gen 5 with 16 lanes from the CPU, while the GPU uses a PCIe 4.0 x16 bus interface.

Q: Is the RTX 4090 still in production?

A: No, the production status is end-of-life, with the GeForce 50 series listed as its successor.

Q: What are the CPU's clock speeds?

A: The base clock is 2.40 GHz with a boost clock of 5.10 GHz, and the multiplier is unlocked for overclocking.

Benchmark Performance

The CPU's average benchmark score is 42906, placing it in the 88th percentile of all CPUs. Its nearest rival is the Intel Core i9-12900KF with an average score of 42830, a delta of 0.2%. The Intel Core Ultra 9 386H scores 43210, which is 0.7% higher. The Intel Core i9-12950HX scores 42487, 1% lower. The AMD Ryzen AI Max PRO 385 scores 43326, 1% higher. These small deltas indicate the i9-12900 performs essentially on par with its closest competitors.

The GPU's average benchmark score is 60347, also placing it in the 88th percentile of all GPUs. Its nearest rivals show minimal differences: the Intel Arc Pro A60 scores 60326 (0% delta), AMD Radeon Pro Vega 48 scores 60140 (0.3% higher), AMD Radeon Pro W6600M scores 61896 (2.5% lower), and AMD Radeon PRO V710 scores 58657 (2.9% higher). The GPU's performance is tightly clustered with these workstation-oriented cards.

The combined build percentile is 88, reflecting both components' strong but not top-tier positions. The CPU's Cinebench R23 multicore score of 18628 and single-core score of 1825 show balanced performance. Geekbench multicore is 13088 and single-core is 1993. PassMark multithread score is 33608, with single-thread at 4003. The CPU's data compression score is 407899, data encryption is 23203, extended instructions is 24777, find prime numbers is 121, floating point math is 91514, integer math is 127512, physics is 1730, and random string sorting is 44070.

Together, these scores paint a picture of a system that is strong across the board but not at the absolute top of either component class. The CPU's 88th percentile and GPU's 88th percentile create a balanced pairing where neither component dramatically outclasses the other in overall benchmark terms, though their workload characteristics differ significantly.

Who Should Build It

This build targets users who need high-end GPU performance for gaming at 1440p or 4K resolutions, where the RTX 4090's 24 GB VRAM and 1.01 TB/s bandwidth provide headroom for high-resolution textures and ray tracing. The CPU's 16 cores and 24 threads handle modern games that use multiple threads, while the 5.10 GHz boost clock ensures responsive single-threaded performance. Esports gamers at lower resolutions would see less benefit from the GPU's massive compute resources, as the CPU would likely become the limiting factor.

Content creators working with video editing, 3D rendering, or GPU-accelerated effects will find the RTX 4090's 82.58 TFLOPS FP32 performance and 512 tensor cores useful for tasks like AI upscaling, denoising, and render acceleration. The CPU's PassMark data encryption score of 23203 and compression score of 407899 indicate strong performance for file archiving and encryption workloads. Software developers compiling large codebases will benefit from the 24 threads and 30 MB of shared L3 cache.

Students in engineering or data science fields may use the ECC memory support for numerical simulations where data integrity is critical. Small business workstations running virtual machines or database workloads would leverage the CPU's multithreaded performance, with the GPU providing acceleration for compute tasks. The GPU's PassMark GPU compute score of 26613 and Geekbench OpenCL score of 255416 show substantial compute capability beyond graphics.

Balance and Bottleneck

The CPU and GPU both sit at the 88th percentile of their respective classes, suggesting a balanced pairing in overall performance terms. However, workload characteristics reveal where each component dominates. In gaming, the GPU's 82.58 TFLOPS FP32 performance and 1.01 TB/s bandwidth vastly exceed what most games require, meaning the CPU's single-thread performance (PassMark single-thread score of 4003) may limit frame rates at lower resolutions. At 1080p, the CPU's 5.10 GHz boost clock and strong single-core scores would likely create a GPU bottleneck only in the most demanding CPU-bound titles.

At 1440p and 4K, the GPU becomes the primary bottleneck, which is typical for high-resolution gaming. The CPU's 16 cores provide enough thread capacity for background tasks while gaming, and the 65 W TDP means thermal headroom for sustained boost clocks. In productivity workloads, the CPU's multicore performance (Cinebench R23 multicore score of 18628) handles parallel tasks, while the GPU accelerates compute-heavy operations. The PassMark physics score of 1730 indicates moderate physics simulation performance, which could bottleneck in physics-heavy games.

The GPU's nearest rivals in benchmark scores are workstation cards with similar average scores, suggesting the RTX 4090 provides professional-grade compute in a consumer package. The CPU's nearest rivals include laptop and mobile processors, indicating its performance class is comparable to high-end mobile parts despite being a desktop chip. For pure gaming at high refresh rates, the CPU may hold back the GPU in esports titles. For 4K gaming or GPU-accelerated rendering, the pairing is well balanced.

Build Overview

This is a desktop-class build combining the Intel Core i9-12900 and NVIDIA GeForce RTX 4090. The CPU is a 16-core, 24-thread Alder Lake-S part with a 2.40 GHz base clock and 5.10 GHz boost clock. The GPU is an Ada Lovelace architecture card with 24 GB GDDR6X memory and a 384-bit bus. Both components sit at the 88th percentile of their respective categories, giving the combined system an overall 88th percentile ranking.

The CPU's 65 W TDP is remarkably low for its core count, while the GPU's 450 W TDP and 850 W suggested PSU make power delivery a primary consideration. The build occupies a triple-slot GPU with a 304 mm length, requiring a full-size tower case. The CPU's DDR4 and DDR5 memory support offers flexibility in motherboard and memory selection, though the dual-channel bus limits bandwidth compared to workstation platforms. The GPU's end-of-life status means this build represents the peak of the GeForce 40-series generation, with the successor already announced.

For users seeking a high-end gaming or workstation system, this pairing delivers strong performance across gaming and compute workloads. The GPU's massive VRAM allocation and compute throughput make it suitable for future titles and professional applications, while the CPU's 24 threads handle multitasking and multithreaded applications. The system's overall 88th percentile ranking places it in the upper tier of desktop configurations, though not at the absolute top of either component class.

CPU Analysis

The Intel Core i9-12900 features 16 cores and 24 threads using the Alder Lake architecture on Intel's 10 nm process. The die size is 215 mm² with a base clock of 2.40 GHz and boost clock of 5.10 GHz. The cache hierarchy includes 80 KB L1 per core, 1.25 MB L2 per core, and 30 MB shared L3. Memory support covers DDR4 and DDR5 in dual-channel configuration with 76.8 GB/s bandwidth. ECC memory support is included, and the CPU has an unlocked multiplier for overclocking.

Benchmark results show the CPU's Cinebench R15 multicore score of 3299 and single-core score of 262. R20 multicore is 11994 and single-core is 1693. R23 multicore is 18628 and single-core is 1825. Geekbench multicore is 13088 and single-core is 1993. PassMark scores include multithread at 33608, single-thread at 4003, data compression at 407899, data encryption at 23203, extended instructions at 24777, find prime numbers at 121, floating point math at 91514, integer math at 127512, physics at 1730, and random string sorting at 44070.

The average benchmark score is 42906 with an 88th percentile ranking. The nearest rival, the Core i9-12900KF, scores 42830 with a 0.2% delta, indicating the KF variant without integrated graphics performs nearly identically. The Core Ultra 9 386H scores 43210 (0.7% higher), the Core i9-12950HX scores 42487 (1% lower), and the AMD Ryzen AI Max PRO 385 scores 43326 (1% higher). These tight deltas show the i9-12900 is competitively positioned among its peers.

The CPU's release date is 2022-01-03 with a launch MSRP of $519. It remains active in production. The integrated UHD Graphics 770 provides basic display output. The 10 nm process and 215 mm² die size give a transistor density that supports the 16-core configuration, though the memory bandwidth of 76.8 GB/s may limit performance in memory-intensive workloads. The 65 W TDP is notably low for a 16-core part, which could limit sustained all-core boost clocks under heavy loads. For real workloads, the CPU handles multithreaded applications like video encoding, 3D rendering, and compilation with its 24 threads, while the 5.10 GHz boost clock ensures snappy single-threaded responsiveness in everyday tasks.

Rate My PC: Intel Core i9-12900 + NVIDIA GeForce RTX 4090

Apex Performer

System Balance Analysis

Intel Core i9-12900

NVIDIA GeForce RTX 4090

Market Position

Game Performance Benchmarks

Cyberpunk 2077

Red Dead Redemption 2

Microsoft Flight Simulator

Control

Call of Duty: Warzone

Fortnite

Performance Insights

Optimal Performance

4K Gaming Ready

Performance Tiers Explained

Ultimate

High-End

Mid-Range

Entry Level

Legacy

Upgrade Path and Platform

Gaming Performance

GPU Analysis

FAQ

Benchmark Performance

Who Should Build It

Balance and Bottleneck

Build Overview

CPU Analysis

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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