Core i7-7700K vs i9-9900K
Description
The i7-7700K is based on Kaby Lake architecture while the i9-9900K is based on Coffee Lake.
Using the multithread performance as a reference, the i7-7700K gets a score of 289.8 k points while the i9-9900K gets 545.3 k points.
Summarizing, the i9-9900K is 1.9 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 i7-7700K gets a score of 289.8 k points while the i9-9900K gets 545.3 k points.
Summarizing, the i9-9900K is 1.9 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
906ec
Core
Kaby Lake-S
Coffee Lake-S
Base frecuency
4.2 GHz
3.6 GHz
Boost frecuency
4.5 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
8/16
TDP
95 W
95 W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
16384 kB
Date
September 2016
October 2018
Mean monothread perf.
76.9k points
86.24k points
Mean multithread perf.
289.82k 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
i7-7700K
i9-9900K
Test#1 (Integers)
4.63k
5.17k (x1.12)
Test#2 (FP)
18.92k
21.15k (x1.12)
Test#3 (Generic, ZIP)
6.22k
7.01k (x1.13)
Test#1 (Memory)
13.92k
15.32k (x1.1)
TOTAL
43.7k
48.66k (x1.11)
Multithread
i7-7700K
i9-9900K
Test#1 (Integers)
18.53k
38.45k (x2.08)
Test#2 (FP)
86.49k
155.68k (x1.8)
Test#3 (Generic, ZIP)
28.78k
51k (x1.77)
Test#1 (Memory)
9.67k
18.26k (x1.89)
TOTAL
143.47k
263.38k (x1.84)
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
i7-7700K
i9-9900K
Test#1 (Integers)
30.44k
33.62k (x1.1)
Test#2 (FP)
26.91k
30.02k (x1.12)
Test#3 (Generic, ZIP)
6.25k
7.17k (x1.15)
Test#1 (Memory)
13.3k
15.43k (x1.16)
TOTAL
76.9k
86.24k (x1.12)
Multithread
i7-7700K
i9-9900K
Test#1 (Integers)
127.73k
248.93k (x1.95)
Test#2 (FP)
123.68k
224.43k (x1.81)
Test#3 (Generic, ZIP)
29.34k
53.39k (x1.82)
Test#1 (Memory)
9.08k
18.54k (x2.04)
TOTAL
289.82k
545.3k (x1.88)
Performance/W
i7-7700K
i9-9900K
Test#1 (Integers)
1345 points/W
2620 points/W
Test#2 (FP)
1302 points/W
2362 points/W
Test#3 (Generic, ZIP)
309 points/W
562 points/W
Test#1 (Memory)
96 points/W
195 points/W
TOTAL
3051 points/W
5740 points/W
Performance/GHz
i7-7700K
i9-9900K
Test#1 (Integers)
6765 points/GHz
6724 points/GHz
Test#2 (FP)
5981 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
1434 points/GHz
Test#1 (Memory)
2955 points/GHz
3087 points/GHz
TOTAL
17089 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