SYSTEM ANALYZER

Rate My PC: Intel Core i9-12900K + AMD Radeon RX 6800

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

93 / 100
ULTIMATE READY

Apex Performer

Top 7% 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
94%
PROCESSOR

Intel Core i9-12900K

42,335 Benchmark Score
Top 7% Market Ranking
View Full Specs →
GRAPHICS CARD

AMD Radeon RX 6800

30,095 Benchmark Score
Top 6% 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

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

This Intel Core i9-12900K and AMD Radeon RX 6800 pairing is a desktop build that combines a 16-core flagship CPU with a 16 GB RDNA 2 GPU. No measured FPS rows exist for this exact combination, so all frame-rate discussion is estimated from the synthetic benchmark scores in the data set.

CPU Analysis

The Intel Core i9-12900K is a 16-core, 24-thread Alder Lake desktop processor running at a base clock of 3.20 GHz and a boost clock of 5.20 GHz. Built on Intel's 10 nm process, the die measures 215 mm², and the cache hierarchy includes 80 KB of L1 per core, 1.25 MB of L2 per core, and a 30 MB shared L3 cache. It supports both DDR4 and DDR5 memory through a dual-channel interface, with a measured memory bandwidth of 76.8 GB/s, and it includes ECC support. The chip also carries Intel's UHD Graphics 770 integrated GPU and exposes PCIe Gen 5 with 16 CPU lanes.

The benchmark scores paint a picture of a processor that is strong in both single-threaded and multi-threaded workloads. In Cinebench R23, it scores 26125 in multi-core and 2004.5 in single-core. Geekbench reports 16378 multi-core and 2193 single-core. The 3DMark results show a clear scaling trend: 9912 in the 16-thread test, 7596 at 8 threads, 4145 at 4 threads, 2120 at 2 threads, and 1073 in single-thread. PassMark's multithread score is 41213 and single-thread is 4136. The average benchmark score is 42335, placing it at the 88th percentile of all CPUs.

Comparing to its nearest rivals, the i9-12900K is essentially tied with the Intel Core i9-12950HX (average score 42487, delta -0.4%) and the AMD Ryzen 5 7400 (42055, delta 0.7%). It is 0.9% faster than the Ryzen 9 PRO 8945HS (41963) and 1.0% faster than the Core i7-14700T (41914). These small deltas mean the CPU sits in a tight performance band around 42,000 points, but the i9-12900K is slightly behind the mobile i9-12950HX. For real workloads, the 16-core/24-thread design gives it a substantial edge in multi-threaded tasks like video encoding, software compilation, and 3D rendering. The single-core score of 2004.5 in Cinebench R23 suggests strong responsiveness in everyday applications and games that rely on a few threads. The data implies a processor that can handle heavy parallel work while still maintaining excellent single-thread performance for latency-sensitive tasks.

GPU Analysis

The AMD Radeon RX 6800 is built on RDNA 2.0 with the Navi 21 chip, fabricated on a 7 nm process at TSMC. It packs 26,800 million transistors on a 520 mm² die, with a transistor density of 51.5M / mm². The GPU runs at a base clock of 1700 MHz, a game clock of 1815 MHz, and a boost clock of 2105 MHz. Memory is 16 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth; the memory clock is 2000 MHz with an effective 16 Gbps data rate. The chip has 3840 shading units, 240 TMUs, 96 ROPs, and 60 ray-tracing cores. Compute throughput is rated at 16.17 TFLOPS for FP32 and 32.33 TFLOPS for FP16 (2:1). Pixel rate is 202.1 GPixel/s and texture rate is 505.2 GTexel/s.

In synthetic benchmarks, the RX 6800 scores 3188 in 3DMark Steel Nomad (DX12), 153635 in Geekbench Metal, 24508 in Geekbench OpenCL, and 115107 in Geekbench Vulkan. PassMark results show a G3D score of 22067 and a GPU compute score of 10864. The DirectX 10, 11, 12, and 9 scores are 128, 214, 89, and 158 respectively. With an average benchmark score of 30095, the GPU sits at the 75th percentile of all GPUs.

Compared to its nearest rivals, the RX 6800 is 0.5% faster than the NVIDIA GeForce RTX 3070 Ti (29945), 0.6% faster than the RTX 5070 Mobile (29928), and 1.0% faster than the RTX 2080 Ti (29783). However, it is 1.1% slower than the AMD Radeon RX 6700 (30433). This places the RX 6800 in the same performance class as the RTX 3070 Ti and RTX 2080 Ti, with a slight edge over both. The 16 GB frame buffer is a strong asset for high-resolution textures and large scenes, while the 512 GB/s bandwidth supports heavy shader workloads. The 60 RT cores allow hardware-accelerated ray tracing, though the raw ray-tracing performance is not top-tier; the FP32 rate of 16.17 TFLOPS suggests solid compute for graphics tasks.

Upgrade Path and Platform

The i9-12900K uses the Intel Socket 1700, which is the platform for 12th-gen Alder Lake desktop chips. It supports both DDR4 and DDR5 memory, and the memory controller is dual-channel with a 76.8 GB/s bandwidth, so a motherboard must be chosen accordingly. The CPU supports ECC memory, which is unusual for consumer chips and valuable for error-sensitive workloads. The PCIe Gen 5 connection with 16 CPU lanes allows high-speed storage and future GPUs, though the RX 6800 itself uses PCIe 4.0 x16.

The GPU has a TDP of 250 W and a suggested power supply of 600 W, while the CPU has a TDP of 125 W. That combined 375 W draw suggests a 600 W PSU gives sufficient headroom, but a higher-wattage unit would be needed for heavy overclocking or additional peripherals. The GPU is dual-slot, uses two 8-pin power connectors, and measures 267 mm in length, 120 mm in height, and 40 mm in width, which fits most mid-tower cases. The RX 6800 is marked as end-of-life, and its successor is Navi III, but no specific performance figures are given. The CPU remains in active production, so a user can still buy a new one. A sensible next upgrade would be to move to a newer 13th-gen or 14th-gen CPU on the same LGA 1700 socket, though the data does not specify which models. Alternatively, the GPU could be replaced with a Navi III product, but the data does not list performance for that.

Balance and Bottleneck

The CPU sits at the 88th percentile while the GPU is at the 75th percentile, indicating the CPU is the stronger component of the two. In a typical gaming workload, the GPU is likely to be the limiting factor at higher resolutions and with heavy graphics settings, because the CPU has more headroom. The CPU's multi-thread scores (Cinebench R23 26125, 3DMark max threads 11620) show it can feed the GPU with high frame rates, but the GPU's DirectX 12 score of 89 and Steel Nomad 3188 suggest it will cap performance in graphics-intensive titles. For productivity, the CPU is the workhorse; the PassMark data compression score of 537341 and integer math 139090 indicate strong CPU-bound tasks. The CPU's 125 W TDP and the GPU's 250 W TDP mean a 600 W PSU is adequate, but the CPU's 16 cores and 24 threads can easily outpace the GPU in compute-heavy applications like 3D rendering, where the GPU is not always the primary factor. The single-thread scores (3DMark single 1073, Cinebench R23 single 2004.5) show the CPU can sustain high frame times in games, so the bottleneck shifts to the GPU once the resolution and settings increase.

Gaming Performance

There is no measured FPS data for this exact CPU+GPU combination, so the following is an estimate based on the synthetic scores. The CPU's single-thread performance of 2004.5 in Cinebench R23 and 1073 in 3DMark single-thread indicates it can feed a GPU for high-refresh-rate gaming. The GPU's 3DMark Steel Nomad score of 3188, combined with a 75th percentile position, suggests it is capable of smooth gameplay at high refresh rates in many titles, but the DirectX 9 and 10 scores (257 and 128) indicate older APIs may be less efficient. The 16 GB frame buffer is ample for high-resolution textures, and the 512 GB/s bandwidth supports high texture detail. For ray tracing, the 60 RT cores will handle some effects, but the GPU is not a top-tier ray-tracing performer; the DirectX 12 Ultimate support (12_2) is present, but the Steel Nomad score suggests a mid-range ray-tracing experience. The CPU's high multi-thread scores also help in games that use multiple cores, but the GPU will still be the limit in many scenarios. Overall, the estimate is that this system can deliver high-frame-rate at 1440p-class settings, but 4K-class ray tracing would strain the GPU.

Who Should Build It

This pairing is best for a desktop user who needs both strong multi-threaded CPU performance and a capable GPU. The 16-core/24-thread CPU is a good fit for content creators who render video or 3D scenes; the Cinebench R23 multi-score of 26125 and PassMark multithread of 41213 show it can handle heavy encoding and compilation. The 16 GB GPU with 512 GB/s bandwidth is suited for large texture workloads in game development or 3D visualization. Software developers will benefit from the ECC memory support and the high integer math score of 139090, which is useful for builds and simulations. Students and small business workstations that run office applications will see responsive single-thread behavior (PassMark single-thread 4136) and a capable integrated GPU (UHD 770) for basic display tasks. However, the GPU's 75th percentile suggests it is not a top-tier gaming card, so a user targeting 4K ultra gaming might need a stronger GPU, while the CPU is already above that class.

Usage Scenarios

High-refresh gaming: The CPU's single-thread score of 2004.5 (Cinebench R23) and 1073 (3DMark single) supports high frame rates, but the GPU's 3188 Steel Nomad score indicates a 1440p-capable card. At 1080p, the CPU may be the limit, but the GPU will still cap at high refresh.

Streaming: The 16 cores and 24 threads are well-suited for encoding and streaming simultaneously, as the PassMark multithread score of 41213 shows headroom for CPU-side encoding while the GPU handles graphics.

Video editing: The CPU's Cinebench R23 multi-core 26125 and PassMark data compression 537341 help render and export fast. The GPU's 16 GB VRAM and 512 GB/s bandwidth aid in previewing large projects.

3D rendering: The CPU's 26125 multi-core score and the GPU's FP32 16.17 TFLOPS make this a capable entry-level renderer. The 60 RT cores assist in ray-traced scenes, but the GPU's 75th percentile means it is not a render monster.

Software development: The CPU's integer math 139090 and data encryption 29579 are strong for code compilation and encryption tasks. The ECC memory support adds reliability for long builds.

Student and office work: The CPU's single-thread 4136 (PassMark) and the integrated UHD 770 handle everyday tasks, while the GPU is not needed for such workloads. The 125 W CPU and 250 W GPU are efficient enough for a desktop.

FAQ

Q: What is the CPU socket for the Intel Core i9-12900K?

A: It uses the Intel Socket 1700.

Q: Does the CPU support both DDR4 and DDR5 memory?

A: Yes, the i9-12900K supports DDR4 and DDR5 memory, but it requires a motherboard that matches the memory type.

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

A: The RX 6800 has 16 GB of GDDR6 memory with a 256-bit bus and 512.0 GB/s bandwidth.

Q: What is the suggested power supply for the RX 6800?

A: The suggested PSU is 600 W, and the GPU uses two 8-pin power connectors.

Q: Does the RX 6800 support hardware ray tracing?

A: Yes, it has 60 ray-tracing cores and supports DirectX 12 Ultimate (12_2).

Q: Is the CPU overclockable?

A: Yes, the i9-12900K has an unlocked multiplier, so it supports overclocking.

Q: What are the launch MSRPs of the CPU and GPU?

A: The i9-12900K had a launch MSRP of $599, and the RX 6800 had a launch MSRP of 579 USD.

Benchmark Performance

The Intel Core i9-12900K has an average benchmark score of 42335, placing it at the 88th percentile of all CPUs. Its nearest rival is the Intel Core i9-12950HX with 42487 (delta -0.4%), meaning the 12900K is essentially tied but slightly slower. The AMD Ryzen 5 7400 (42055, delta 0.7%) and Ryzen 9 PRO 8945HS (41963, delta 0.9%) are slightly slower, and the Core i7-14700T (41914, delta 1.0%) is the closest competitor. The AMD Radeon RX 6800 has an average benchmark score of 30095, at the 75th percentile of all GPUs. It is 0.5% faster than the RTX 3070 Ti (29945), 0.6% faster than the RTX 5070 Mobile (29928), and 1.0% faster than the RTX 2080 Ti (29783), but 1.1% slower than the RX 6700 (30433). The combined percentile for this desktop build is 82, indicating a strong overall system, but the CPU is clearly the stronger component.

Build Overview

This is a desktop build combining the Intel Core i9-12900K, a 16-core/24-thread Alder Lake processor, with the AMD Radeon RX 6800, an 16 GB RDNA2 GPU. The CPU is in the 88th percentile of all processors, while the GPU is in the 75th percentile, giving the system a combined percentile of 82. This pairing is well-suited for a high-end productivity desktop that can also handle gaming at high refresh rates, but the GPU is the limiting factor for ray tracing and 4K workloads. The build class is desktop, and the data shows a system with a strong multi-threaded CPU and a mid-range to high-end GPU, positioned just above the RTX 3070 Ti and RTX 2080 Ti.