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 373 k points while the i9-9900K gets 549.3 k points.
Summarizing, the i9-9900K is 1.5 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 373 k points while the i9-9900K gets 549.3 k points.
Summarizing, the i9-9900K is 1.5 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
906ed
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.
73.71k points
81.81k points
Mean multithread perf.
373.03k points
549.28k 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)
4.41k
5k (x1.13)
Test#2 (FP)
17.12k
20.22k (x1.18)
Test#3 (Generic, ZIP)
5.53k
6.54k (x1.18)
Test#1 (Memory)
12.84k
13.78k (x1.07)
TOTAL
39.9k
45.53k (x1.14)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
26.95k
36.39k (x1.35)
Test#2 (FP)
108.36k
166.55k (x1.54)
Test#3 (Generic, ZIP)
38.03k
54.92k (x1.44)
Test#1 (Memory)
5.54k
8.96k (x1.62)
TOTAL
178.89k
266.82k (x1.49)
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
i7-8700
i9-9900K
Test#1 (Integers)
16.22k
18.03k (x1.11)
Test#2 (FP)
23.25k
25.98k (x1.12)
Test#3 (Generic, ZIP)
5.99k
6.86k (x1.14)
Test#1 (Memory)
12.92k
14.5k (x1.12)
TOTAL
58.39k
65.37k (x1.12)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
95.92k
131.34k (x1.37)
Test#2 (FP)
148.19k
204.76k (x1.38)
Test#3 (Generic, ZIP)
38.6k
55.74k (x1.44)
Test#1 (Memory)
5.19k
8.99k (x1.73)
TOTAL
287.9k
400.83k (x1.39)
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
i9-9900K
Test#1 (Integers)
16.57k
17.98k (x1.08)
Test#2 (FP)
25.52k
27.04k (x1.06)
Test#3 (Generic, ZIP)
6.01k
6.63k (x1.1)
Test#1 (Memory)
12.82k
13.6k (x1.06)
TOTAL
60.92k
65.24k (x1.07)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
101.85k
130.88k (x1.29)
Test#2 (FP)
170.31k
208.5k (x1.22)
Test#3 (Generic, ZIP)
43.12k
54.12k (x1.26)
Test#1 (Memory)
7.11k
8.91k (x1.25)
TOTAL
322.39k
402.41k (x1.25)
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)
28.98k
31.96k (x1.1)
Test#2 (FP)
25.61k
28.14k (x1.1)
Test#3 (Generic, ZIP)
5.85k
6.64k (x1.13)
Test#1 (Memory)
13.27k
15.07k (x1.14)
TOTAL
73.71k
81.81k (x1.11)
Multithread
i7-8700
i9-9900K
Test#1 (Integers)
171.85k
251.31k (x1.46)
Test#2 (FP)
156.55k
230.84k (x1.47)
Test#3 (Generic, ZIP)
37.04k
56.16k (x1.52)
Test#1 (Memory)
7.59k
10.97k (x1.45)
TOTAL
373.03k
549.28k (x1.47)
Performance/W
i7-8700
i9-9900K
Test#1 (Integers)
2644 points/W
2645 points/W
Test#2 (FP)
2408 points/W
2430 points/W
Test#3 (Generic, ZIP)
570 points/W
591 points/W
Test#1 (Memory)
117 points/W
115 points/W
TOTAL
5739 points/W
5782 points/W
Performance/GHz
i7-8700
i9-9900K
Test#1 (Integers)
6300 points/GHz
6393 points/GHz
Test#2 (FP)
5567 points/GHz
5628 points/GHz
Test#3 (Generic, ZIP)
1272 points/GHz
1328 points/GHz
Test#1 (Memory)
2885 points/GHz
3014 points/GHz
TOTAL
16024 points/GHz
16362 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