The Core i5-8250U is a cpu manufactured by Intel that was released on August 2017. This model has 4 Kaby Lake-R cores with HyperThreading, runs at 1600 MHz as base frequency and has a a thermal design power of 15 W.
The i5-8250U has 4x32+4x32 kB of cache L1, 4x256 kB of cache L2 and 6144 kB of cache L3.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
Multithread
Test#1 (Integers)
3322
13969 (x4.2)
Test#2 (FP)
13499
50797 (x3.8)
Test#3 (Generic, ZIP)
4105
14713 (x3.6)
Test#1 (Memory)
7416
4763 (x0.6)
TOTAL
28342
84242 (x3.0)
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
Multithread
Test#1 (Integers)
12410
42479 (x3.4)
Test#2 (FP)
18112
60203 (x3.3)
Test#3 (Generic, ZIP)
4785
14850 (x3.1)
Test#1 (Memory)
8157
4770 (x0.6)
TOTAL
43464
122301 (x2.8)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
Multithread
Test#1 (Integers)
12588
45911 (x3.6)
Test#2 (FP)
18890
69550 (x3.7)
Test#3 (Generic, ZIP)
4648
16795 (x3.6)
Test#1 (Memory)
8197
4830 (x0.6)
TOTAL
44322
137086 (x3.1)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
Multithread
Test#1 (Integers)
22022
83330 (x3.8)
Test#2 (FP)
19620
70301 (x3.6)
Test#3 (Generic, ZIP)
4660
17159 (x3.7)
Test#1 (Memory)
8550
5175 (x0.6)
TOTAL
54852
175965 (x3.2)
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [% vs time]
Test#2 (FP) [% vs time]
Test#3 (Generic, ZIP) [% vs time]
Test#1 (Memory) [% vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.