Intel Core Ultra 7 155H vs AMD EPYC 7663
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CPU comparison with benchmarks
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| Intel Core Ultra 7 155H | AMD EPYC 7663 | |
CPU comparisonIntel Core Ultra 7 155H or AMD EPYC 7663 - 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 Ultra 7 155H has 16 cores with 22 threads and clocks with a maximum frequency of 4.80 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core Ultra 7 155H was released in Q4/2023. The AMD EPYC 7663 has 56 cores with 112 threads and clocks with a maximum frequency of 3.50 GHz. The CPU supports up to 4096 GB of memory in 8 memory channels. The AMD EPYC 7663 was released in Q1/2021. |
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| Intel Core Ultra 7 (9) | Family | AMD EPYC (129) |
| Intel Core Ultra 100H (5) | CPU group | AMD EPYC 7003 (29) |
| 1 | Generation | 3 |
| Meteor Lake H | Architecture | Milan (Zen 3) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core Ultra 7 155H is a 16 core processor with a clock frequency of 1.40 GHz (4.80 GHz). The AMD EPYC 7663 has 56 CPU cores with a clock frequency of 2.00 GHz (3.50 GHz). |
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| Intel Core Ultra 7 155H | Characteristic | AMD EPYC 7663 |
| 16 | Cores | 56 |
| 22 | Threads | 112 |
| hybrid (big.LITTLE) | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 1.40 GHz (4.80 GHz) 6x Redwood Cove |
A-Core | 2.00 GHz (3.50 GHz) 56x Zen 3 |
| 0.90 GHz (3.80 GHz) 8x Crestmont |
B-Core | -- |
| 0.70 GHz (2.50 GHz) 2x Crestmont |
C-Core | -- |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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| Intel Core Ultra 7 155H | Characteristic | AMD EPYC 7663 |
| Intel AI engine | AI hardware | -- |
| Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) | AI specifications | -- |
Internal GraphicsThe integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| 2.25 GHz | GPU (Turbo) | -- |
| -- | GPU Generation | -- |
| 5 nm | Technology | |
| 4 | Max. displays | |
| 128 | Compute units | -- |
| 1024 | Shader | -- |
| Yes | Hardware Raytracing | No |
| No | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12.2 | 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 Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) | 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 | Codec VP9 | No |
| Decode | Codec VP8 | No |
| Decode / Encode | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core Ultra 7 155H supports a maximum of 96 GB of memory in 2 memory channels. The AMD EPYC 7663 can connect up to 4096 GB of memory in 8 memory channels. |
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| Intel Core Ultra 7 155H | Characteristic | AMD EPYC 7663 |
| LPDDR5X-7500, DDR5-5600 | Memory | DDR4-3200 |
| 96 GB | Max. Memory | 4096 GB |
| 2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
| 120.0 GB/s | Max. Bandwidth | 204.8 GB/s |
| No | ECC | Yes |
| 18.00 MB | L2 Cache | -- |
| 24.00 MB | L3 Cache | 256.00 MB |
| 5.0 | PCIe version | 4.0 |
| 20 | PCIe lanes | 128 |
| 78.8 GB/s | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core Ultra 7 155H has a TDP of 28 W, that of the AMD EPYC 7663 is 240 W. |
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| Intel Core Ultra 7 155H | Characteristic | AMD EPYC 7663 |
| 28 W | TDP (PL1 / PBP) | 240 W |
| 115 W | TDP (PL2) | -- |
| 65 W | TDP up | -- |
| 20 W | TDP down | 225 W |
| 110 °C | Tjunction max. | -- |
Technical detailsThe Intel Core Ultra 7 155H has a 42.00 MB cache, while the AMD EPYC 7663 cache has a total of 256.00 MB. |
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| Intel Core Ultra 7 155H | Characteristic | AMD EPYC 7663 |
| 7 nm | Technology | 7 nm |
| Chiplet | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| BGA 2049 | Socket | SP3 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q4/2023 | Release date | Q1/2021 |
| -- | Release price | 6366 $ |
| show more data | show more data | |
16C 22T @ 1.40 GHz (4.80 GHz) buy now on Amazon and save!
56C 112T @ 2.00 GHz (3.50 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 0 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 Ultra 7 155H
16C 22T @ 4.80 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 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 Ultra 7 155H
16C 22T @ 4.80 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 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 Ultra 7 155H
16C 22T @ 4.20 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 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 Ultra 7 155H
16C 22T @ 4.20 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 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 Ultra 7 155H
16C 22T @ 4.80 GHz |
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AMD EPYC 7663
56C 112T @ 3.50 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 Ultra 7 155H
16C 22T @ 4.20 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 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 Ultra 7 155H
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) @ 2.25 GHz |
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AMD EPYC 7663
@ 0.00 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 Ultra 7 155H
16C 22T @ 4.20 GHz |
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AMD EPYC 7663
56C 112T @ 3.00 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 Ultra 7 155H
16,825 CB R23 MC @ 75 W |
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AMD EPYC 7663
2.00 GHz |
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Devices using this processor |
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| Intel Core Ultra 7 155H | AMD EPYC 7663 |
| ASUS Zenbook Duo (2024) UX8406 | Unknown |
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