SYSTEM ANALYZER

Rate My PC: Intel Core i5-12400T + NVIDIA GeForce RTX 5090 D

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

86 / 100
HIGH-END

Power Build

Top 14% of systems. Excellent for 1440p Ultra or 4K High gaming.

1440p Ultra4K High

System Balance Analysis

CPU vs GPU performance ratio
CPU Bottleneck
CPU
75%
VS
GPU
98%

Your CPU is limiting system performance. Consider upgrading to a faster processor to better utilize your GPU.

PROCESSOR

Intel Core i5-12400T

4,019 Benchmark Score
Top 25% Market Ranking
View Full Specs →
GRAPHICS CARD

NVIDIA GeForce RTX 5090 D

77,712 Benchmark Score
Top 2% 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.

Bottleneck Detected

CPU Bottleneck - Upgrading the weaker component will improve overall performance.

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

# CPU Analysis

The Intel Core i5-12400T is a 6-core, 12-thread Alder Lake-S desktop processor built on Intel's 10 nm process. Its base clock of 1800 MHz is notably low, but the boost clock reaches 4.20 GHz, giving it a wide dynamic range that suits power-constrained environments. The 35 W TDP is the defining characteristic here — this is a processor engineered for thermal efficiency rather than raw sustained throughput.

Benchmark results reflect this dual personality. In Cinebench R23 multi-core, the chip scores 13,234 points, while the single-core score is 1,868. The R20 results show 5,558 multi-core and 784 single-core, and Geekbench delivers 7,144 multi-core and 2,044 single-core. These numbers place the CPU at the 57th percentile among all tested processors, with an average benchmark score of 4,019.

The nearest rivals illustrate where this chip sits in the broader landscape. The AMD Ryzen 5 PRO 4655G scores 4,010 on average, a mere 0.2% difference — essentially a statistical tie. The Intel Xeon E-2336 is 0.9% behind, while the Xeon E-2278G is 0.8% ahead. This places the 12400T in a cluster of capable mid-range processors, with the single-core performance being the standout feature relative to its multi-core position.

The cache hierarchy is generous for the class: 80 KB of L1 per core, 1.25 MB of L2 per core, and 18 MB of shared L3. For real workloads, this means the 12400T can handle compile tasks, office productivity, and light content creation without feeling sluggish, but the 35 W TDP will cap sustained all-core loads. The Cinebench R23 multi-core score of 13,234 suggests a chip that can complete rendering tasks, but not at the pace of higher-TDP alternatives.

# Upgrade Path and Platform

The 12400T uses Intel Socket 1700, which anchors it to the 12th-generation platform. Memory support includes both DDR4 and DDR5 in dual-channel configuration, giving builders flexibility depending on motherboard choice and budget constraints. The integrated UHD Graphics 730 provides a fallback display output, though it is not intended for gaming. ECC memory is not supported, which narrows its appeal for mission-critical workstation builds.

PCIe connectivity is Gen 5 with 20 lanes from the CPU alone. This is forward-looking for storage and GPU bandwidth, though the 12400T's modest core configuration means the platform's PCIe potential is not fully utilized in CPU-bound scenarios. The processor is not multiplier-unlocked, so overclocking headroom is absent — the efficiency-focused design is the intended operating point.

The companion GPU in this build, the RTX 5090 D, demands a 950 W suggested PSU and draws 575 W TDP. The CPU's 35 W TDP leaves enormous power headroom for the GPU and other components, but the real constraint is the motherboard and cooling solution. A sensible next upgrade would be moving to a higher-core-count Socket 1700 processor — the platform supports the full 12th-gen lineup, and the existing DDR4 or DDR5 memory could carry over. However, the PCIe Gen 5 lanes and dual-channel memory support mean the platform will not bottleneck a modern GPU in terms of interface bandwidth.

The launch MSRP for the 12400T is $192. The GPU's launch MSRP is 2,299 USD. Neither figure should be interpreted as a current market price, but they bracket the intended positioning: a budget-leaning CPU paired with a flagship GPU.

# Gaming Performance

The FACT PACK contains no measured FPS rows for this exact CPU+GPU combination. All gaming performance figures discussed here are estimates derived from the benchmark scores and should be treated as approximations rather than lab-verified results.

The RTX 5090 D's raw compute is extraordinary: 104.8 TFLOPS of FP32 performance, 32 GB of GDDR7 memory on a 512-bit bus with 1.79 TB/s bandwidth, and 170 RT cores. The 3DMark Steel Nomad DX12 score of 14,326 places it at the 92nd percentile among all GPUs. When paired with a 6-core, 12-thread CPU that sits at the 57th percentile, the GPU will be the dominant factor in most gaming scenarios.

At 1080p, the CPU's single-core performance — a Geekbench single-core score of 2,044 — will likely limit frame rates in CPU-bound titles, especially at high refresh rates. The 12400T's boost clock of 4.20 GHz is respectable, but the low base clock and 35 W TDP mean sustained all-core loads could cause clocks to dip. Games that rely heavily on a single thread will see less impact, but modern titles that use 6+ cores will push the CPU toward its limits.

At 1440p and 4K, the GPU becomes the bottleneck in most scenarios, and the RTX 5090 D's massive memory bandwidth and compute throughput will shine. The 32 GB VRAM is overkill for current titles but future-proofs for high-resolution textures and ray tracing. The estimated FPS at 4K ultra settings would be exceptionally high in most games, constrained more by the CPU's ability to feed the GPU than by the GPU's raw output. The PassMark G3D score of 44,065 and the Geekbench Vulkan score of 376,915 reinforce this GPU-dominant picture.

# Who Should Build It

This pairing targets a narrow but specific user: someone who wants flagship GPU performance but is willing to accept a modest CPU for efficiency reasons. The 57th percentile CPU and 92nd percentile GPU create an imbalance that favors GPU-heavy workloads. Gamers at 1440p or 4K resolution will see the most benefit, as those settings shift the bottleneck decisively toward the GPU.

Content creators working with GPU-accelerated rendering — video editing, 3D scene rendering, or AI inference — will find the RTX 5090 D's 92,200 million transistors and 680 tensor cores compelling. The 104.8 TFLOPS FP16 performance (1:1 with FP32) suggests strong compute throughput for machine learning workloads. The CPU's 13,234 Cinebench R23 multi-core score is adequate for feeding the GPU but will not accelerate CPU-bound tasks like code compilation or physics simulation to the same degree.

Developers and students building a workstation for general-purpose programming, office productivity, and occasional GPU compute will find the 12400T's 6 cores sufficient, while the RTX 5090 D handles any CUDA-accelerated tasks. Small business workstations that need GPU power for rendering or data visualization but run lighter CPU loads are a reasonable fit. The 35 W CPU TDP keeps cooling simple and quiet, which suits office environments.

# Balance and Bottleneck

The data paints a clear picture of imbalance. The CPU sits at the 57th percentile, the GPU at the 92nd percentile, and the combined percentile is 75. This means the GPU is significantly stronger relative to its peers than the CPU is relative to its own class. In CPU-bound workloads — gaming at 1080p, single-threaded applications, or lightly threaded productivity tasks — the 12400T will limit performance. In GPU-bound workloads — 4K gaming, rendering, compute — the RTX 5090 D will operate near its full potential.

The FPS scaling story is estimated, but the logic is straightforward. At lower resolutions, the CPU's 2,044 Geekbench single-core score and 1,868 Cinebench R23 single-core score will cap frame rates. At higher resolutions, the GPU's 1.79 TB/s bandwidth and 32 GB VRAM reduce the CPU's influence. The 3DMark Steel Nomad score of 14,326 indicates the GPU can handle extreme geometry and shading loads, but only if the CPU can supply draw calls fast enough.

The 35 W CPU TDP versus the 575 W GPU TDP is a 16:1 power ratio. This is the most extreme imbalance in the build, suggesting that the platform's power delivery and cooling are almost entirely dedicated to the GPU. The 950 W suggested PSU provides ample headroom, but the CPU's low power envelope means it will never be the source of thermal throttling — it simply does not have the wattage headroom to sustain high clocks under all-core loads.

# GPU Analysis

The NVIDIA GeForce RTX 5090 D is a flagship Blackwell 2.0 architecture GPU built on TSMC's 5 nm process. The GB202 chip packs 92,200 million transistors on a 750 mm² die, yielding a transistor density of 122.9 million per mm². This is a physically massive chip, and its 304 mm length, 137 mm height, and 48 mm width confirm a dual-slot design that will require careful case selection.

Memory is the standout feature: 32 GB of GDDR7 on a 512-bit bus delivers 1.79 TB/s of bandwidth. This is more VRAM than most users will ever need, but it enables 4K texture packs, large AI model inference, and multi-GPU rendering without memory swapping. The bus width of 512 bits is the widest in the consumer segment, and the 28 Gbps effective memory speed keeps the bandwidth figure competitive.

Compute resources are staggering: 21,760 shading units, 680 TMUs, 176 ROPs, 170 RT cores, and 680 tensor cores. The pixel rate of 423.6 GPixel/s and texture rate of 1,636.8 GTexel/s indicate the GPU can fill frames at resolutions and detail levels that would choke lesser hardware. The FP32 throughput of 104.8 TFLOPS (matching FP16 at 1:1) positions this GPU as a compute monster for both gaming and professional rendering.

Benchmark scores confirm the dominance. The PassMark G3D score of 44,065 and the 3DMark Steel Nomad DX12 score of 14,326 place the GPU at the 92nd percentile. The Geekbench OpenCL score of 310,674 and Vulkan score of 376,915 show strong cross-API performance. The PassMark GPU Compute score of 28,396 indicates the tensor and compute units are effective in real workloads.

The nearest rivals are interesting: the AMD Radeon RX 6650M XT is 1.1% ahead on average score, while the RX 6850M XT is 1.6% behind. The NVIDIA Tesla P100 variants are 2.1% and 2.4% behind. This suggests the RTX 5090 D's average benchmark score of 77,712 is competitive with a cluster of high-end GPUs, though the 92nd percentile rank shows it is not the absolute top performer in every test.

# Benchmark Performance

The CPU's average benchmark score is 4,019, with a percentile rank of 57. Its best individual results are the Cinebench R23 multi-core score of 13,234 and the Geekbench single-core score of 2,044. The GPU's average benchmark score is 77,712, with a percentile rank of 92. Its standout results include the 3DMark Steel Nomad score of 14,326 and the Geekbench Vulkan score of 376,915.

The combined percentile of 75 reflects the pairing's overall position: above average but not elite, dragged down by the CPU's mid-pack standing. The GPU's 92nd percentile is exceptional, but the CPU's 57th percentile means the system as a whole will not perform at the 92nd percentile in CPU-bound tasks. The data suggests that this combination is a GPU-first build where the CPU is a supporting actor rather than a co-star.

In compute-heavy workloads that leverage the GPU, the system will perform near the top of the desktop class. In CPU-heavy workloads, it will perform like a mid-range machine. The average benchmark scores of 4,019 (CPU) and 77,712 (GPU) show a 19:1 ratio in raw score, but the percentile gap is more meaningful: 57 versus 92 is a 35-point spread that will manifest in real-world performance differences.

# FAQ

Q: What is the CPU's TDP and why does it matter?

A: The Intel Core i5-12400T has a TDP of 35 W. This is exceptionally low for a desktop processor, meaning it generates minimal heat and requires modest cooling, but it also caps sustained all-core performance.

Q: How much VRAM does the RTX 5090 D have?

A: The GPU has 32 GB of GDDR7 memory on a 512-bit bus, providing 1.79 TB/s of bandwidth. This is sufficient for 4K gaming, large texture packs, and GPU compute workloads.

Q: Does the CPU support DDR5 memory?

A: Yes, the 12400T supports both DDR4 and DDR5 memory in dual-channel configuration. The choice of memory type depends on the motherboard.

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

A: The RTX 5090 D uses TSMC's 5 nm process and the Blackwell 2.0 architecture. The GB202 chip contains 92,200 million transistors on a 750 mm² die.

Q: Is the CPU overclockable?

A: No, the multiplier is not unlocked, so the 12400T cannot be overclocked. Its 4.20 GHz boost clock is the maximum achievable frequency.

Q: What power supply is suggested for this build?

A: The suggested PSU is 950 W, driven by the GPU's 575 W TDP. The CPU's 35 W TDP is a minor contributor to overall system power draw.

Q: How does the GPU compare to its nearest rivals?

A: The RTX 5090 D's average benchmark score of 77,712 is 1.1% behind the AMD Radeon RX 6650M XT and 1.6% ahead of the RX 6850M XT. It is 2.1% ahead of the Tesla P100 PCIe 12 GB and 2.4% ahead of the Tesla P100 PCIe 16 GB.

# Usage Scenarios

High-refresh gaming: At 1080p, the CPU's 57th percentile standing and 2,044 Geekbench single-core score will likely limit frame rates in CPU-bound titles, preventing the GPU from reaching its full potential. At 1440p and above, the GPU's 92nd percentile and 32 GB VRAM dominate, enabling high refresh rates in most games.

Streaming: The GPU's NVENC (not specified in the FACT PACK, but implied by the architecture) and 170 RT cores handle encoding and effects, while the CPU's 6 cores and 12 threads manage the game and stream overlay. The 35 W TDP keeps the CPU cool during extended sessions.

Video editing: The GPU's 104.8 TFLOPS FP32 and 680 tensor cores accelerate effects, rendering, and AI-assisted editing tools. The CPU's 13,234 Cinebench R23 multi-core score is adequate for timeline scrubbing and export encoding, though not elite.

3D rendering: The RTX 5090 D's 21,760 shading units and 1.79 TB/s bandwidth excel in GPU-accelerated renderers like Blender Cycles or Octane. The CPU's 18 MB L3 cache and 6 cores handle scene preparation, but the GPU does the heavy lifting.

Software development: The CPU's 2,044 Geekbench single-core score ensures snappy compiles for small-to-medium projects, and the 6 cores handle parallel builds. The GPU is overkill for this workload but enables local AI model training or testing.

Student and office work: The 35 W TDP makes this an efficient system for daily tasks, with the integrated UHD Graphics 730 as a fallback. The GPU's 575 W TDP is wasteful for this scenario, but the CPU alone is a capable office processor.

# Build Overview

This is a desktop build combining the Intel Core i5-12400T with the NVIDIA GeForce RTX 5090 D. The CPU is a 6-core, 12-thread Alder Lake-S processor with a 35 W TDP, sitting at the 57th percentile. The GPU is a Blackwell 2.0 flagship with 32 GB GDDR7 memory, a 575 W TDP, and a 92nd percentile ranking. The combined percentile is 75, placing the overall system in the upper-middle tier of desktop configurations.

The pairing is intentionally lopsided: an efficiency-focused CPU paired with a performance-focused GPU. This makes sense for users who prioritize GPU-accelerated workloads — gaming at high resolutions, rendering, compute — over CPU-bound tasks. The platform supports DDR4 or DDR5 memory and PCIe Gen 5, providing a solid foundation for the GPU's PCIe 5.0 x16 interface. The 950 W suggested PSU ensures the GPU's 575 W TDP is accommodated with substantial headroom, and the CPU's 35 W TDP means cooling is a non-issue for the processor.

The RTX 5090 D's launch MSRP of 2,299 USD and the 12400T's launch MSRP of $192 bracket a wide price range, but the performance data shows the GPU delivers 92nd percentile performance while the CPU delivers 57th percentile. This is a build for users who know their workloads are GPU-bound and are willing to accept a mid-range CPU to balance power draw and cost.