Intel Core i9-11900F vs Intel Core Ultra 7 155H
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CPU comparison with benchmarks
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| Intel Core i9-11900F | Intel Core Ultra 7 155H | |
CPU comparisonIntel Core i9-11900F or Intel Core Ultra 7 155H - 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 i9-11900F has 8 cores with 16 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-11900F was released in Q1/2021. The Intel Core Ultra 7 155H has 16 cores with 22 threads and clocks with a maximum frequency of 4.80 GHz. The CPU supports up to 96 GB of memory in 2 memory channels. The Intel Core Ultra 7 155H was released in Q4/2023. |
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| Intel Core i9 (78) | Family | Intel Core Ultra 7 (9) |
| Intel Core i 11000 (22) | CPU group | Intel Core Ultra 100H (5) |
| 11 | Generation | 1 |
| Rocket Lake S | Architecture | Meteor Lake H |
| Desktop / Server | Segment | Mobile |
| Intel Core i9-10900F | Predecessor | -- |
| Intel Core i9-12900F | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i9-11900F has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Core i9-11900F is 2.50 GHz (5.20 GHz) while the Intel Core Ultra 7 155H has 16 CPU cores and 22 threads can calculate simultaneously. The clock frequency of the Intel Core Ultra 7 155H is at 1.40 GHz (4.80 GHz). |
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| Intel Core i9-11900F | Characteristic | Intel Core Ultra 7 155H |
| 8 | Cores | 16 |
| 16 | Threads | 22 |
| normal | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.50 GHz (5.20 GHz) | A-Core | 1.40 GHz (4.80 GHz) 6x Redwood Cove |
| -- | B-Core | 0.90 GHz (3.80 GHz) 8x Crestmont |
| -- | C-Core | 0.70 GHz (2.50 GHz) 2x Crestmont |
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 i9-11900F | Characteristic | Intel Core Ultra 7 155H |
| -- | AI hardware | Intel AI engine |
| -- | AI specifications | Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) |
Internal GraphicsThe Intel Core i9-11900F or Intel Core Ultra 7 155H 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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| no iGPU | GPU | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
| GPU frequency | 0.60 GHz | |
| -- | GPU (Turbo) | 2.25 GHz |
| -- | GPU Generation | -- |
| Technology | 5 nm | |
| Max. displays | 4 | |
| -- | Compute units | 128 |
| -- | Shader | 1024 |
| No | Hardware Raytracing | Yes |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 32 GB |
| -- | DirectX Version | 12.2 |
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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| no iGPU | GPU | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
| No | Codec h265 / HEVC (8 bit) | Decode / Encode |
| No | Codec h265 / HEVC (10 bit) | Decode / Encode |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | Decode / Encode |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Core i9-11900F can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The Intel Core Ultra 7 155H supports up to 96 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s. |
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| Intel Core i9-11900F | Characteristic | Intel Core Ultra 7 155H |
| DDR4-3200 | Memory | LPDDR5X-7500, DDR5-5600 |
| 128 GB | Max. Memory | 96 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 51.2 GB/s | Max. Bandwidth | 120.0 GB/s |
| No | ECC | No |
| 4.00 MB | L2 Cache | 18.00 MB |
| 16.00 MB | L3 Cache | 24.00 MB |
| 4.0 | PCIe version | 5.0 |
| 20 | PCIe lanes | 20 |
| 39.4 GB/s | PCIe Bandwidth | 78.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i9-11900F is 65 W, while the Intel Core Ultra 7 155H has a TDP of 28 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core i9-11900F | Characteristic | Intel Core Ultra 7 155H |
| 65 W | TDP (PL1 / PBP) | 28 W |
| 224 W @ 56 s | TDP (PL2) | 115 W |
| -- | TDP up | 65 W |
| -- | TDP down | 20 W |
| 100 °C | Tjunction max. | 110 °C |
Technical detailsThe Intel Core i9-11900F is manufactured in 14 nm and has 20.00 MB cache. The Intel Core Ultra 7 155H is manufactured in 7 nm and has a 42.00 MB cache. |
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| Intel Core i9-11900F | Characteristic | Intel Core Ultra 7 155H |
| 14 nm | Technology | 7 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2, AVX-512 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| LGA 1200 | Socket | BGA 2049 |
| VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows 10, Windows 11, Linux | Operating systems | Windows 11, Linux |
| Q1/2021 | Release date | Q4/2023 |
| 422 $ | Release price | -- |
| show more data | show more data | |
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8C 16T @ 2.50 GHz (5.20 GHz) buy now on Amazon and save!
16C 22T @ 1.40 GHz (4.80 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 3 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 i9-11900F
8C 16T @ 5.20 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 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 i9-11900F
8C 16T @ 5.20 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 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 i9-11900F
8C 16T @ 3.80 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 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 i9-11900F
8C 16T @ 5.20 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 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 i9-11900F
8C 16T @ 3.80 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 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 i9-11900F
8C 16T @ 3.80 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 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 i9-11900F
8C 16T @ 3.80 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 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 i9-11900F
@ 0.00 GHz |
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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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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 i9-11900F
8C 16T @ 2.50 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 1.40 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 i9-11900F
2.50 GHz |
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Intel Core Ultra 7 155H
16,825 CB R23 MC @ 75 W |
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Devices using this processor |
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| Intel Core i9-11900F | Intel Core Ultra 7 155H |
| Unknown | ASUS Zenbook Duo (2024) UX8406 |
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