Intel Core i9-12900KS vs AMD Ryzen 7 3800XT
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CPU comparison with benchmarks
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| Intel Core i9-12900KS | AMD Ryzen 7 3800XT | |
CPU comparisonIn this CPU comparison, we compare the Intel Core i9-12900KS and the AMD Ryzen 7 3800XT and use benchmarks to check which processor is faster.
We compare the Intel Core i9-12900KS 16 core processor released in Q2/2022 with the AMD Ryzen 7 3800XT which has 8 CPU cores and was introduced in Q2/2020. |
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| Intel Core i9 (78) | Family | AMD Ryzen 7 (70) |
| Intel Core i 12000 (34) | CPU group | AMD Ryzen 3000 (15) |
| 12 | Generation | 3 |
| Alder Lake S | Architecture | Matisse (Zen 2) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| Intel Core i9-13900KS | Successor | AMD Ryzen 7 5800XT |
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CPU Cores and Base FrequencyThe Intel Core i9-12900KS is a 16 core processor with a clock frequency of 3.40 GHz (5.50 GHz). The processor can compute 24 threads at the same time. The AMD Ryzen 7 3800XT clocks with 4.20 GHz (4.70 GHz), has 8 CPU cores and can calculate 16 threads in parallel. |
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| Intel Core i9-12900KS | Characteristic | AMD Ryzen 7 3800XT |
| 16 | Cores | 8 |
| 24 | Threads | 16 |
| hybrid (big.LITTLE) | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| Yes | Overclocking ? | Yes |
| 3.40 GHz (5.50 GHz) 8x Golden Cove |
A-Core | 4.20 GHz (4.70 GHz) |
| 2.50 GHz (4.00 GHz) 8x Gracemont |
B-Core | -- |
Integrated graphics (iGPU)Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| Intel UHD Graphics 770 | GPU | no iGPU |
| 0.30 GHz | GPU frequency | -- |
| 1.55 GHz | GPU (Turbo) | -- |
| 11 | GPU Generation | -- |
| 10 nm | Technology | |
| 3 | Max. displays | |
| 32 | Compute units | -- |
| 256 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 64 GB | Max. GPU Memory | -- |
| 12 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| Intel UHD Graphics 770 | GPU | no iGPU |
| Decode / Encode | Codec h265 / HEVC (8 bit) | No |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| Decode / Encode | Codec VP9 | No |
| Decode / Encode | Codec VP8 | No |
| Decode | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeUp to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i9-12900KS, while the AMD Ryzen 7 3800XT supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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| Intel Core i9-12900KS | Characteristic | AMD Ryzen 7 3800XT |
| DDR5-4800, DDR4-3200 | Memory | DDR4-3200 |
| 128 GB | Max. Memory | 128 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 76.8 GB/s | Max. Bandwidth | 51.2 GB/s |
| Yes | ECC | Yes |
| 14.00 MB | L2 Cache | -- |
| 30.00 MB | L3 Cache | 32.00 MB |
| 5.0 | PCIe version | 4.0 |
| 20 | PCIe lanes | 20 |
| 78.8 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe Intel Core i9-12900KS has a TDP of 150 W. The TDP of the AMD Ryzen 7 3800XT is 105 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| Intel Core i9-12900KS | Characteristic | AMD Ryzen 7 3800XT |
| 150 W | TDP (PL1 / PBP) | 105 W |
| 241 W | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 90 °C | Tjunction max. | 95 °C |
Technical detailsThe Intel Core i9-12900KS has 44.00 MB cache and is manufactured in 10 nm. The cache of AMD Ryzen 7 3800XT is at 32.00 MB. The processor is manufactured in 7 nm. |
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| Intel Core i9-12900KS | Characteristic | AMD Ryzen 7 3800XT |
| 10 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2, AVX2+ | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| LGA 1700 | Socket | AM4 (PGA 1331) |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
| Q2/2022 | Release date | Q2/2020 |
| 749 $ | Release price | -- |
| show more data | show more data | |
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16C 24T @ 3.40 GHz (5.50 GHz) buy now on Amazon and save!
8C 16T @ 4.20 GHz (4.70 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 5 CPU benchmarks
⌀ Multi core performance in 6 CPU benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Cinebench R23 (Multi-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Cinebench 2024 (Single-Core)
The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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Cinebench 2024 (Multi-Core)
The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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Intel Core i9-12900KS
Intel UHD Graphics 770 @ 1.55 GHz |
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AMD Ryzen 7 3800XT
@ 0.00 GHz |
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Blender 3.1 Benchmark
In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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Blender 2.81 (bmw27)
Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
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Intel Core i9-12900KS
16C 24T @ 5.20 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.50 GHz |
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CPU-Z Benchmark 17 (Single-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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Intel Core i9-12900KS
16C 24T @ 5.50 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.70 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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Intel Core i9-12900KS
16C 24T @ 3.40 GHz |
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AMD Ryzen 7 3800XT
8C 16T @ 4.20 GHz |
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CPU performance per watt (efficiency)
Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
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Intel Core i9-12900KS
27,796 CB R23 MC @ 241 W |
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AMD Ryzen 7 3800XT
4.20 GHz |
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Devices using this processor |
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| Intel Core i9-12900KS | AMD Ryzen 7 3800XT |
| Unknown | Unknown |
News and articles for the Intel Core i9-12900KS and the AMD Ryzen 7 3800XT
The evolution of AMD Ryzen processors
Posted by Stefan on 2022-09-06
The AMD Ryzen processors are designed for the mid to high-end range and are grouped into the Ryzen 3, Ryzen 5, Ryzen 7 and Ryzen 9 classes. AMD follows the market leader Intel, which groups its Core i series (Intel Core i3, Core i5, Core i7 and Core i9) identically.
The AMD Ryzen processors were first introduced by AMD in Q1 2017. They are the successor to the not particularly successful AMD Bulldozer processors. The latter were manufactured using an outdated manufacturing process and could not keep up with the competing products from Intel. AMD lost a large portion of its desktop processor market share during this period.
The AMD Ryzen processors were first introduced by AMD in Q1 2017. They are the successor to the not particularly successful AMD Bulldozer processors. The latter were manufactured using an outdated manufacturing process and could not keep up with the competing products from Intel. AMD lost a large portion of its desktop processor market share during this period.
Intel Core i9-13900 benchmark of engineering sample
Posted by Stefan on 2022-06-15
Intels 13th generation of the Intel Core i series (Raptor Lake) is about to be released and a lot of information is already known from the official side. This information includes e.g. the number of CPU cores, the expected increase in performance and the manufacturing technology of the new CPUs.
We compare the technical data of the Intel Core i9-13900 with its predecessor and look at benchmarks that have already been published.
We compare the technical data of the Intel Core i9-13900 with its predecessor and look at benchmarks that have already been published.
AMD Ryzen 9 7950X - Cinebench R23 Benchmark projection
Posted by Stefan on 2022-06-10
We give you a preview of AMD's new Zen 4 desktop processors and calculate the performance of the AMD Ryzen 9 7950X top model for the new AM5 socket. The performance data and other technical details come directly from the press kit that AMD released as part of its Financial Analyst Day on June 9, 2022.
Up to 15 percent more single-core performance and 35 percent more multi-core performance of the 16-core model are realistic !
Up to 15 percent more single-core performance and 35 percent more multi-core performance of the 16-core model are realistic !
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