The Core i7-8700 is a cpu manufactured by Intel that was released on October 2017. This model has 6 Coffee Lake-S cores with HyperThreading, runs at 3200 MHz as base frequency and has a a thermal design power of 65 W.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
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)
4.41k
26.95k (x6.1)
Test#2 (FP)
17.12k
108.36k (x6.3)
Test#3 (Generic, ZIP)
5.53k
38.03k (x6.9)
Test#1 (Memory)
12.84k
5.54k (x0.4)
TOTAL
39.9k
178.89k (x4.5)
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)
16.22k
95.92k (x5.9)
Test#2 (FP)
23.25k
148.19k (x6.4)
Test#3 (Generic, ZIP)
5.99k
38.6k (x6.4)
Test#1 (Memory)
12.92k
5.19k (x0.4)
TOTAL
58.39k
287.9k (x4.9)
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)
16.57k
101.85k (x6.1)
Test#2 (FP)
25.52k
170.31k (x6.7)
Test#3 (Generic, ZIP)
6.01k
43.12k (x7.2)
Test#1 (Memory)
12.82k
7.11k (x0.6)
TOTAL
60.92k
322.39k (x5.3)
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 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.