Core i7-8700 vs i7-7700K
Description
The i7-8700 is based on Coffee Lake architecture while the i7-7700K is based on Kaby Lake.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i7-7700K gets 289.9 k points.
Summarizing, the i7-8700 is 1.3 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i7-7700K gets 289.9 k points.
Summarizing, the i7-8700 is 1.3 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906e9
Core
Coffee Lake-S
Kaby Lake-S
Base frecuency
3.2 GHz
4.2 GHz
Boost frecuency
4.6 GHz
4.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/12
4/8
TDP
65 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
12288 kB
8192 kB
Date
October 2017
September 2016
Mean monothread perf.
75.01k points
76.98k points
Mean multithread perf.
388.95k points
289.9k points
Non-optimized benchmark
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
i7-8700
i7-7700K
Test#1 (Integers)
4.48k
4.63k (x1.03)
Test#2 (FP)
18.31k
18.92k (x1.03)
Test#3 (Generic, ZIP)
5.88k
6.22k (x1.06)
Test#1 (Memory)
13.45k
13.92k (x1.03)
TOTAL
42.12k
43.7k (x1.04)
Multithread
i7-8700
i7-7700K
Test#1 (Integers)
27.35k
18.53k (x0.68)
Test#2 (FP)
124.94k
86.49k (x0.69)
Test#3 (Generic, ZIP)
43.23k
28.78k (x0.67)
Test#1 (Memory)
7.08k
9.67k (x1.37)
TOTAL
202.61k
143.47k (x0.71)
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
i7-8700
i7-7700K
Test#1 (Integers)
16.57k
17.55k (x1.06)
Test#2 (FP)
25.52k
27.82k (x1.09)
Test#3 (Generic, ZIP)
6.01k
6.8k (x1.13)
Test#1 (Memory)
12.82k
14.83k (x1.16)
TOTAL
60.92k
67k (x1.1)
Multithread
i7-8700
i7-7700K
Test#1 (Integers)
101.85k
68.4k (x0.67)
Test#2 (FP)
170.31k
118.8k (x0.7)
Test#3 (Generic, ZIP)
43.12k
33.34k (x0.77)
Test#1 (Memory)
7.11k
17.43k (x2.45)
TOTAL
322.39k
237.97k (x0.74)
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
i7-8700
i7-7700K
Test#1 (Integers)
29.25k
30.47k (x1.04)
Test#2 (FP)
25.98k
26.94k (x1.04)
Test#3 (Generic, ZIP)
6.05k
6.25k (x1.03)
Test#1 (Memory)
13.74k
13.32k (x0.97)
TOTAL
75.01k
76.98k (x1.03)
Multithread
i7-8700
i7-7700K
Test#1 (Integers)
182.56k
127.81k (x0.7)
Test#2 (FP)
159.9k
123.7k (x0.77)
Test#3 (Generic, ZIP)
38.18k
29.34k (x0.77)
Test#1 (Memory)
8.31k
9.05k (x1.09)
TOTAL
388.95k
289.9k (x0.75)
Performance/W
i7-8700
i7-7700K
Test#1 (Integers)
2809 points/W
1345 points/W
Test#2 (FP)
2460 points/W
1302 points/W
Test#3 (Generic, ZIP)
587 points/W
309 points/W
Test#1 (Memory)
128 points/W
95 points/W
TOTAL
5984 points/W
3052 points/W
Performance/GHz
i7-8700
i7-7700K
Test#1 (Integers)
6358 points/GHz
6770 points/GHz
Test#2 (FP)
5647 points/GHz
5987 points/GHz
Test#3 (Generic, ZIP)
1316 points/GHz
1389 points/GHz
Test#1 (Memory)
2986 points/GHz
2960 points/GHz
TOTAL
16307 points/GHz
17106 points/GHz
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.
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) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points 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.
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.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4