Intel Core i7-8557U
The Intel Core i7-8557U operates with 4 cores and 8 CPU threads. It run at 4.50 GHz base 3.40 GHz all cores while the TDP is set at 15 W.The processor is attached to the BGA 1528 CPU socket. This version includes 8.00 MB of L3 cache on one chip, supports 2 memory channels to support DDR4-2400 SO-DIMMLPDDR3-2133 RAM and features 3.0 PCIe Gen 16 lanes. Tjunction keeps below -- degrees C. In particular, Coffee Lake U Architecture is enhanced with 14 nm technology and supports VT-x, VT-x EPT, VT-d. The product was launched on Q3/2019
| Frequency | 1.70 GHz |
| CPU Cores | 4 |
| CPU Threads | 8 |
| Turbo (1 Core) | 4.50 GHz |
| Turbo (4 Cores): | 3.40 GHz |
| Hyperthreading | Yes  |
| Overclocking | No  |
| Core Architecture | normal |
Where to Buy?
Buy Intel Core i7-8557U
Memory & PCIe
| Memory type | DDR4-2400 SO-DIMMLPDDR3-2133 |
| Max memory | |
| Memory channels | 2 |
| ECC | No |
| Bandwidth | -- |
| PCIe | 3.0 x 16 |
Encryption
| AES-NI | Yes |
Internal Graphics
| Memory type | DDR4-2400 SO-DIMMLPDDR3-2133 |
| GPU name | Intel Iris Plus Graphics 645 |
| GPU frequency | 0.30 GHz |
| GPU (Turbo) | 1.15 GHz |
| Generation | 9.5 |
| DirectX Version | 12 |
| Execution units | 48 |
| Shader | 384 |
| Max memory | 32 GB |
| Max. displays | 3 |
| Technology | 14 nm |
| Release date | Q4/2017 |
Technical details
| Instruction set (ISA) | x86-64 (64 bit) |
| Architecture | Coffee Lake U |
| L2-Cache | -- |
| L3-Cache | 8.00 MB |
| Technology | 14 nm |
| Release date | Q3/2019 |
| Socket | BGA 1528 |
Thermal Management
| TDP (PL1) | 15 W |
| TDP (PL2) | -- |
| TDP Up | -- |
| TDP Down | -- |
| Tjunction max | -- |
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.
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.
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.
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.
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.
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.
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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