Core i7-8700 vs i9-9900K
Description
Both models i7-8700 and i9-9900K are based on Coffee Lake architecture.
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.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i9-9900K gets 545.3 k points.
Summarizing, the i9-9900K is 1.4 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.
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.
Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the i9-9900K gets 545.3 k points.
Summarizing, the i9-9900K is 1.4 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906ec
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
3.2 GHz
3.6 GHz
Boost frecuency
4.6 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/12
8/16
TDP
65 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x256 kB
Cache L3
12288 kB
16384 kB
Date
October 2017
October 2018
Mean monothread perf.
75.01k points
86.24k points
Mean multithread perf.
388.95k points
545.3k 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
i9-9900K
Test#1 (Integers)
4.48k
5.17k (x1.15)
Test#2 (FP)
18.31k
21.15k (x1.16)
Test#3 (Generic, ZIP)
5.88k
7.01k (x1.19)
Test#1 (Memory)
13.45k
15.32k (x1.14)
TOTAL
42.12k
48.66k (x1.16)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
27.35k
38.45k (x1.41)
Test#2 (FP)
124.94k
155.68k (x1.25)
Test#3 (Generic, ZIP)
43.23k
51k (x1.18)
Test#1 (Memory)
7.08k
18.26k (x2.58)
TOTAL
202.61k
263.38k (x1.3)
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
i7-8700
i9-9900K
Test#1 (Integers)
29.25k
33.62k (x1.15)
Test#2 (FP)
25.98k
30.02k (x1.16)
Test#3 (Generic, ZIP)
6.05k
7.17k (x1.18)
Test#1 (Memory)
13.74k
15.43k (x1.12)
TOTAL
75.01k
86.24k (x1.15)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
182.56k
248.93k (x1.36)
Test#2 (FP)
159.9k
224.43k (x1.4)
Test#3 (Generic, ZIP)
38.18k
53.39k (x1.4)
Test#1 (Memory)
8.31k
18.54k (x2.23)
TOTAL
388.95k
545.3k (x1.4)
Performance/W
i7-8700
i9-9900K
Test#1 (Integers)
2809 points/W
2620 points/W
Test#2 (FP)
2460 points/W
2362 points/W
Test#3 (Generic, ZIP)
587 points/W
562 points/W
Test#1 (Memory)
128 points/W
195 points/W
TOTAL
5984 points/W
5740 points/W
Performance/GHz
i7-8700
i9-9900K
Test#1 (Integers)
6358 points/GHz
6724 points/GHz
Test#2 (FP)
5647 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
1316 points/GHz
1434 points/GHz
Test#1 (Memory)
2986 points/GHz
3087 points/GHz
TOTAL
16307 points/GHz
17247 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