Intel Core i7-8557U | Qualcomm Snapdragon 855 Plus | |
CPU comparisonIntel Core i7-8557U or Qualcomm Snapdragon 855 Plus - 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 i7-8557U has 4 cores with 8 threads and clocks with a maximum frequency of 4.50 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Core i7-8557U was released in Q3/2019. The Qualcomm Snapdragon 855 Plus has 8 cores with 8 threads and clocks with a maximum frequency of 2.96 GHz. The CPU supports up to 12 GB of memory in 4 memory channels. The Qualcomm Snapdragon 855 Plus was released in Q4/2018. |
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Intel Core i7 (298) | Family | Qualcomm Snapdragon (104) |
Intel Core i 8000U (8) | CPU group | Qualcomm Snapdragon 855/860 (3) |
8 | Generation | 6 |
Coffee Lake U | Architecture | Kryo 485 |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | Qualcomm Snapdragon 860 |
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CPU Cores and Base FrequencyThe Intel Core i7-8557U has 4 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Intel Core i7-8557U is 1.70 GHz (4.50 GHz) while the Qualcomm Snapdragon 855 Plus has 8 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Qualcomm Snapdragon 855 Plus is at 2.96 GHz. |
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Intel Core i7-8557U | Characteristic | Qualcomm Snapdragon 855 Plus |
4 | Cores | 8 |
8 | Threads | 8 |
normal | Core architecture | hybrid (Prime / big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
1.70 GHz (4.50 GHz) | A-Core | 2.96 GHz 1x Kryo 485 Prime |
-- | B-Core | 2.42 GHz 3x Kryo 485 Gold |
-- | C-Core | 1.80 GHz 4x Kryo 485 Silver |
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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Intel Core i7-8557U | Characteristic | Qualcomm Snapdragon 855 Plus |
-- | AI hardware | Qualcomm AI engine |
-- | AI specifications | Hexagon 690 @ 7 TOPS |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The Intel Core i7-8557U or Qualcomm Snapdragon 855 Plus 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 Iris Plus Graphics 645 | GPU | Qualcomm Adreno 640 |
0.30 GHz | GPU frequency | 0.25 GHz |
1.15 GHz | GPU (Turbo) | 0.68 GHz |
9.5 | GPU Generation | 5 |
14 nm | Technology | 7 nm |
3 | Max. displays | 1 |
48 | Compute units | 4 |
384 | Shader | 384 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
32 GB | Max. GPU Memory | 4 GB |
12 | DirectX Version | 12.0 |
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 Plus Graphics 645 | GPU | Qualcomm Adreno 640 |
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 / Encode | Codec VP9 | Decode / Encode |
Decode / Encode | Codec VP8 | Decode / Encode |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core i7-8557U can use up to 32 GB of memory in 2 memory channels. The maximum memory bandwidth is 38.4 GB/s. The Qualcomm Snapdragon 855 Plus supports up to 12 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 34.1 GB/s. |
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Intel Core i7-8557U | Characteristic | Qualcomm Snapdragon 855 Plus |
DDR4-2400 | Memory | LPDDR4X-4266 |
32 GB | Max. Memory | 12 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
38.4 GB/s | Max. Bandwidth | 34.1 GB/s |
No | ECC | No |
-- | L2 Cache | 2.00 MB |
8.00 MB | L3 Cache | 3.00 MB |
3.0 | PCIe version | -- |
16 | PCIe lanes | -- |
15.8 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-8557U is 15 W, while the Qualcomm Snapdragon 855 Plus has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Core i7-8557U | Characteristic | Qualcomm Snapdragon 855 Plus |
15 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-8557U is manufactured in 14 nm and has 8.00 MB cache. The Qualcomm Snapdragon 855 Plus is manufactured in 7 nm and has a 5.00 MB cache. |
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Intel Core i7-8557U | Characteristic | Qualcomm Snapdragon 855 Plus |
14 nm | Technology | 7 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
SSE4.1, SSE4.2, AVX2 | ISA extensions | -- |
BGA 1528 | Socket | -- |
VT-x, VT-x EPT, VT-d | Virtualization | None |
Yes | AES-NI | No |
Windows 10, Windows 11, Linux | Operating systems | Android |
Q3/2019 | Release date | Q4/2018 |
430 $ | Release price | -- |
show more data | show more data | |
Intel Core i7-8557U
4C 8T @ 4.50 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 3.40 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 4.50 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 3.40 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
Intel Iris Plus Graphics 645 @ 1.15 GHz |
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Qualcomm Snapdragon 855 Plus
Qualcomm Adreno 640 @ 0.68 GHz |
Intel Core i7-8557U
4C 8T @ 3.40 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 4.50 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 3.40 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 1.70 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 1.70 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 4.50 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 3.40 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Intel Core i7-8557U
4C 8T @ 1.70 GHz |
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Qualcomm Snapdragon 855 Plus
8C 8T @ 2.96 GHz |
Devices using this processor |
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Intel Core i7-8557U | Qualcomm Snapdragon 855 Plus |
Apple MacBook Pro 13 (2019) | OnePlus 7T OnePlus 7T Pro 5G OnePlus 7 Pro OnePlus 7T Pro Xiaomi Redmi K20 Pro Premium Edition Realme X2 Pro |