Intel Core i9-9900K vs AMD EPYC 9254
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CPU comparison with benchmarks
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| Intel Core i9-9900K | AMD EPYC 9254 | |
CPU comparisonIntel Core i9-9900K or AMD EPYC 9254 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i9-9900K has 8 cores with 16 threads and clocks with a maximum frequency of 5.00 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-9900K was released in Q4/2018. The AMD EPYC 9254 has 24 cores with 48 threads and clocks with a maximum frequency of 4.15 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9254 was released in Q4/2022. |
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| Intel Core i9 (78) | Family | AMD EPYC (129) |
| Intel Core i 9000 (34) | CPU group | AMD EPYC 9004 (21) |
| 9 | Generation | 4 |
| Coffee Lake S Refresh | Architecture | Genoa / Genoa-X (Zen 4) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| Intel Core i9-10900K | Successor | AMD EPYC 9255 |
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CPU Cores and Base FrequencyThe Intel Core i9-9900K has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Core i9-9900K is 3.60 GHz (5.00 GHz) while the AMD EPYC 9254 has 24 CPU cores and 48 threads can calculate simultaneously. The clock frequency of the AMD EPYC 9254 is at 2.90 GHz (4.15 GHz). |
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| Intel Core i9-9900K | Characteristic | AMD EPYC 9254 |
| 8 | Cores | 24 |
| 16 | Threads | 48 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 3.60 GHz | Frequency | 2.90 GHz |
| 5.00 GHz | Turbo Frequency (1 Core) | 4.15 GHz |
| 4.70 GHz | Turbo Frequency (All Cores) | 3.90 GHz |
Integrated graphics (iGPU)The Intel Core i9-9900K or AMD EPYC 9254 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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| Intel UHD Graphics 630 | GPU | no iGPU |
| 0.35 GHz | GPU frequency | -- |
| 1.20 GHz | GPU (Turbo) | -- |
| 9.5 | GPU Generation | -- |
| 14 nm | Technology | |
| 3 | Max. displays | |
| 24 | Compute units | -- |
| 192 | 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 630 | 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 |
| No | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core i9-9900K can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 42.7 GB/s. The AMD EPYC 9254 supports up to 6144 GB of memory in 12 memory channels and achieves a memory bandwidth of up to 460.8 GB/s. |
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| Intel Core i9-9900K | Characteristic | AMD EPYC 9254 |
| DDR4-2666 | Memory | DDR5-4800 |
| 128 GB | Max. Memory | 6144 GB |
| 2 (Dual Channel) | Memory channels | 12 |
| 42.7 GB/s | Max. Bandwidth | 460.8 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | 24.00 MB |
| 16.00 MB | L3 Cache | 128.00 MB |
| 3.0 | PCIe version | 5.0 |
| 16 | PCIe lanes | 128 |
| 15.8 GB/s | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i9-9900K is 95 W, while the AMD EPYC 9254 has a TDP of 200 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core i9-9900K | Characteristic | AMD EPYC 9254 |
| 95 W | TDP (PL1 / PBP) | 200 W |
| 119 W @ 28 s | TDP (PL2) | -- |
| -- | TDP up | 240 W |
| -- | TDP down | -- |
| 100 °C | Tjunction max. | 100 °C |
Technical detailsThe Intel Core i9-9900K is manufactured in 14 nm and has 16.00 MB cache. The AMD EPYC 9254 is manufactured in 5 nm and has a 152.00 MB cache. |
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| Intel Core i9-9900K | Characteristic | AMD EPYC 9254 |
| 14 nm | Technology | 5 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI |
| LGA 1151-2 | Socket | SP5 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows Server 2022, Linux, Windows 11 |
| Q4/2018 | Release date | Q4/2022 |
| 650 $ | Release price | 2299 $ |
| show more data | show more data | |
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8C 16T @ 3.60 GHz (5.00 GHz) buy now on Amazon and save!
24C 48T @ 2.90 GHz (4.15 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 GHz |
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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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
Intel UHD Graphics 630 @ 1.20 GHz |
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AMD EPYC 9254
@ 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 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 i9-9900K
8C 16T @ 3.60 GHz |
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AMD EPYC 9254
24C 48T @ 2.90 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 i9-9900K
8C 16T @ 5.00 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 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 i9-9900K
8C 16T @ 4.70 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 GHz |
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Devices using this processor |
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| Intel Core i9-9900K | AMD EPYC 9254 |
| Memory PC Intel i9-9900K Multimedia Office PC Intel Core i9 9900K Corsair ONE i160 Kompakter Gaming-PC Intel Core i9-9900K |
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