AMD Ryzen 9 8945HS | Intel Core i7-8557U | |
CPU comparisonAMD Ryzen 9 8945HS or Intel Core i7-8557U - 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 Ryzen 9 8945HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.20 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 8945HS was released in Q1/2024. The Intel Core i7-8557U has 4 cores with 8 threads and clocks with a maximum frequency of 4.50 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-8557U was released in Q3/2019. |
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AMD Ryzen 9 (40) | Family | Intel Core i7 (298) |
AMD Ryzen 8040 (20) | CPU group | Intel Core i 8000U (8) |
7 | Generation | 8 |
Hawk Point (Zen 4) | Architecture | Coffee Lake U |
Mobile | Segment | Mobile |
AMD Ryzen 9 7940HS | Predecessor | -- |
AMD Ryzen AI 9 365 | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 8945HS has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 9 8945HS is 4.00 GHz (5.20 GHz) while the Intel Core i7-8557U has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Core i7-8557U is at 1.70 GHz (4.50 GHz). |
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AMD Ryzen 9 8945HS | Characteristic | Intel Core i7-8557U |
8 | Cores | 4 |
16 | Threads | 8 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
4.00 GHz | Frequency | 1.70 GHz |
5.20 GHz | Turbo Frequency (1 Core) | 4.50 GHz |
-- | Turbo Frequency (All Cores) | 3.40 GHz |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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AMD Ryzen 9 8945HS | Characteristic | Intel Core i7-8557U |
AMD Ryzen™ AI | AI hardware | -- |
AMD Ryzen™ AI (XDNA) @ 16 TOPS | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The AMD Ryzen 9 8945HS or Intel Core i7-8557U 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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AMD Radeon 780M | GPU | Intel Iris Plus Graphics 645 |
0.80 GHz | GPU frequency | 0.30 GHz |
2.80 GHz | GPU (Turbo) | 1.15 GHz |
3 | GPU Generation | 9.5 |
4 nm | Technology | 14 nm |
4 | Max. displays | 3 |
12 | Compute units | 48 |
768 | Shader | 384 |
Yes | Hardware Raytracing | No |
AMD FSR | Frame Generation | No |
32 GB | Max. GPU Memory | 32 GB |
12 | DirectX Version | 12 |
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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AMD Radeon 780M | GPU | Intel Iris Plus Graphics 645 |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
Decode | Codec VP9 | Decode / Encode |
Decode | Codec VP8 | Decode / Encode |
Decode / Encode | Codec AV1 | No |
Decode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 9 8945HS can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The Intel Core i7-8557U supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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AMD Ryzen 9 8945HS | Characteristic | Intel Core i7-8557U |
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | DDR4-2400 |
256 GB | Max. Memory | 32 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
120.0 GB/s | Max. Bandwidth | 38.4 GB/s |
Yes | ECC | No |
8.00 MB | L2 Cache | -- |
16.00 MB | L3 Cache | 8.00 MB |
4.0 | PCIe version | 3.0 |
20 | PCIe lanes | 16 |
39.4 GB/s | PCIe Bandwidth | 15.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 8945HS is 45 W, while the Intel Core i7-8557U 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 Ryzen 9 8945HS | Characteristic | Intel Core i7-8557U |
45 W | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
54 W | TDP up | -- |
35 W | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 9 8945HS is manufactured in 4 nm and has 24.00 MB cache. The Intel Core i7-8557U is manufactured in 14 nm and has a 8.00 MB cache. |
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AMD Ryzen 9 8945HS | Characteristic | Intel Core i7-8557U |
4 nm | Technology | 14 nm |
Monolithic | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
FP8 | Socket | BGA 1528 |
AMD-V, SVM | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q1/2024 | Release date | Q3/2019 |
-- | Release price | 430 $ |
show more data | show more data | |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
AMD Ryzen 9 8945HS
AMD Radeon 780M @ 2.80 GHz |
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Intel Core i7-8557U
Intel Iris Plus Graphics 645 @ 1.15 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 5.20 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
AMD Ryzen 9 8945HS
8C 16T @ 4.00 GHz |
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Intel Core i7-8557U
4C 8T @ 1.70 GHz |
Devices using this processor |
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AMD Ryzen 9 8945HS | Intel Core i7-8557U |
Unknown | Apple MacBook Pro 13 (2019) |