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.
| 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 |
| 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 |
| Bus frequency | |
|---|---|
| L1 Cache | 32 KB |
| L2 Cache | 256 KB |
| L3 Cache | 8 MB |
| Unlock multiplier | No |
| Maximum supported memory | 32GB |
|---|---|
| Memory frequency support |
|
| Maximum number of memory channels | 2 |
| Maximum memory bandwidth | 37.5GB/s |
| ECC support | No |
| 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 (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 |
0.81TFLOPS
|
| Single core performance score |
1200
|
|---|---|
| Multi-core performance score |
4641
|
| Single core performance score |
2433
|
|---|---|
| Multi-core performance score |
7565
|
| 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) |
| Single core performance |
1419
|
|---|---|
| Multi-core performance |
4585
|
| 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) |