Intel Core i7 8557U specifications and performance

Intel Core i7 8557U is a 4 cores and 8 threads CPU processor produced by Intel. Intel Core i7 8557U was released on 2019-07-09, the fabrication process is 14nm (nanometer), the CPU codename is Coffee Lake, the instruction set architecture is x86-64, and the CPU's integrated graphics (iGPU) is Iris Plus Graphics 645.

Basic Information

Vendor / Supplier Intel
Short name i7 8557u
Release date 2019-07-09
CPU code name Coffee Lake
Fabrication process 14nm (nanometer)
Instruction set architecture x86-64
Market Laptop
Integrated Graphics (iGPU) Iris Plus Graphics 645

CPU core specifications

Total number of cores 4 cores
Total number of threads 8 threads
Number of performance cores 4 cores
Number of performance core threads 8 threads
Performance core base frequency / main frequency 1.7GHz
Performance core maximum turbo frequency 4.5GHz
Number of energy efficiency cores
Number of energy-efficient core threads
Energy efficiency core basic frequency / main frequency
Energy efficiency core maximum turbo frequency

CPU cache and frequency

Bus frequency
L1 Cache 32 KB
L2 Cache 256 KB
L3 Cache 8 MB
Unlock multiplier No

Memory specifications

Maximum supported memory 32GB
Memory frequency support
  • - DDR4-2400MHz
  • - LPDDR3-2133MHz
Maximum number of memory channels 2
Maximum memory bandwidth 37.5GB/s
ECC support No

Package specifications

CPU Socket BGA-1528
Default thermal design power / TDP PL1 15W
Maximum Turbo Power Consumption / TDP PL2
Maximum temperature 100°C
PCIe interface PCIe 3.0
PCIe lane count 16

Integrated Graphics specifications

Integrated Graphics (iGPU) Intel Iris Plus Graphics 645
Base frequency 300MHz
Maximum acceleration frequency 1150MHz
Number of execution units 48
Stream Processors / Shading Units 384
Texture Units / TMUs 48
Raster Operations Units / ROPs 6
Total Graphics Power / TGP 15W
FP32 computing performance

Cinebench R23 performance test

Single core performance score
Multi-core performance score

PassMark performance test

Single core performance score
Multi-core performance score
Integer math 28 GOps/sec
Floating point math 15 GOps/sec
Find prime numbers 38 Million Primes/sec (Millions find prime numbers per second)
Random string sorting 11.4 Million Strings/sec (Millions random string sorting per second)
Data encryption 2.8 GBytes/sec (Gigabits per second)
Data compression 102.4 MBytes/sec (megabits per second)
Physics simulation 825 Frames/sec (FPS)
Extended instruction test 4.4 Billion Matrices/sec (Billions matrix operations per second)

GeekBench v6 performance test

Single core performance
Multi-core performance
File compression 480.8 MB/sec (megabits per second)
clang compilation 27.7 Klines/sec (thousands lines per second)
HTML5 browsing 103.9 pages/sec (pages per second)
PDF rendering 137.4 Mpixels/sec (megapixels per second)
Text processing 148.5 pages/sec (pages per second)
Background blur 17.3 images/sec (images per second)
Photo processing 43.6 images/sec (images per second)
Ray tracing 6.09 Mpixels/sec (megapixels per second)