AMD EPYC 9454 vs Intel Core i7-1255U
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CPU comparison with benchmarks
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| AMD EPYC 9454 | Intel Core i7-1255U | |
CPU comparisonAMD EPYC 9454 or Intel Core i7-1255U - 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 AMD EPYC 9454 has 48 cores with 96 threads and clocks with a maximum frequency of 3.80 GHz. Up to 6144 GB of memory is supported in 12 memory channels. The AMD EPYC 9454 was released in Q4/2022. The Intel Core i7-1255U has 10 cores with 12 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i7-1255U was released in Q1/2022. |
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| AMD EPYC (129) | Family | Intel Core i7 (298) |
| AMD EPYC 9004 (21) | CPU group | Intel Core i 1200P/1200U (21) |
| 4 | Generation | 12 |
| Genoa / Genoa-X (Zen 4) | Architecture | Alder Lake U |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | Intel Core i7-1355U |
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CPU Cores and Base FrequencyThe AMD EPYC 9454 has 48 CPU cores and can calculate 96 threads in parallel. The clock frequency of the AMD EPYC 9454 is 2.75 GHz (3.80 GHz) while the Intel Core i7-1255U has 10 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the Intel Core i7-1255U is at 1.70 GHz (4.70 GHz). |
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| AMD EPYC 9454 | Characteristic | Intel Core i7-1255U |
| 48 | Cores | 10 |
| 96 | Threads | 12 |
| normal | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.75 GHz (3.80 GHz) 48x Zen 4 |
A-Core | 1.70 GHz (4.70 GHz) 2x Golden Cove |
| -- | B-Core | 1.20 GHz (3.50 GHz) 8x Gracemont |
Internal GraphicsThe AMD EPYC 9454 or Intel Core i7-1255U 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 Graphics 96 (Alder Lake) |
| GPU frequency | 0.35 GHz | |
| -- | GPU (Turbo) | 1.25 GHz |
| -- | GPU Generation | 13 |
| Technology | 10 nm | |
| Max. displays | 4 | |
| -- | Compute units | 96 |
| -- | Shader | 768 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 32 GB |
| -- | DirectX Version | 12.1 |
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 Graphics 96 (Alder 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 / Encode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | Decode |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD EPYC 9454 can use up to 6144 GB of memory in 12 memory channels. The maximum memory bandwidth is 460.8 GB/s. The Intel Core i7-1255U supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s. |
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| AMD EPYC 9454 | Characteristic | Intel Core i7-1255U |
| DDR5-4800 | Memory | LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200 |
| 6144 GB | Max. Memory | 64 GB |
| 12 | Memory channels | 2 (Dual Channel) |
| 460.8 GB/s | Max. Bandwidth | 83.2 GB/s |
| Yes | ECC | No |
| 48.00 MB | L2 Cache | 6.50 MB |
| 256.00 MB | L3 Cache | 12.00 MB |
| 5.0 | PCIe version | 4.0 |
| 128 | PCIe lanes | 28 |
| 504.1 GB/s | PCIe Bandwidth | 55.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 9454 is 290 W, while the Intel Core i7-1255U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD EPYC 9454 | Characteristic | Intel Core i7-1255U |
| 290 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | 55 W |
| 300 W | TDP up | -- |
| 240 W | TDP down | -- |
| 100 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD EPYC 9454 is manufactured in 5 nm and has 304.00 MB cache. The Intel Core i7-1255U is manufactured in 10 nm and has a 18.50 MB cache. |
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| AMD EPYC 9454 | Characteristic | Intel Core i7-1255U |
| 5 nm | Technology | 10 nm |
| Chiplet | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI | ISA extensions | SSE4.1, SSE4.2, AVX2 |
| SP5 | Socket | BGA 1744 |
| AMD-V, SVM | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows Server 2022, Linux, Windows 11 | Operating systems | Windows 10, Windows 11, Linux |
| Q4/2022 | Release date | Q1/2022 |
| 5225 $ | Release price | -- |
| show more data | show more data | |
48C 96T @ 2.75 GHz (3.80 GHz) buy now on Amazon and save!
10C 12T @ 1.70 GHz (4.70 GHz) buy now on Amazon and save!
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Rate these processors
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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AMD EPYC 9454
48C 96T @ 3.80 GHz |
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Intel Core i7-1255U
10C 12T @ 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD EPYC 9454
48C 96T @ 3.80 GHz |
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Intel Core i7-1255U
10C 12T @ 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD EPYC 9454
48C 96T @ 3.80 GHz |
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Intel Core i7-1255U
10C 12T @ 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD EPYC 9454
48C 96T @ 3.80 GHz |
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Intel Core i7-1255U
10C 12T @ 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD EPYC 9454
@ 0.00 GHz |
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Intel Core i7-1255U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD EPYC 9454
48C 96T @ 3.80 GHz |
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Intel Core i7-1255U
10C 12T @ 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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AMD EPYC 9454
48C 96T @ 3.65 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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Devices using this processor |
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| AMD EPYC 9454 | Intel Core i7-1255U |
| Unknown | Unknown |
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