Core i7-7700K vs i9-9900KF
Description
The i7-7700K is based on Kaby Lake architecture while the i9-9900KF 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 i9-9900KF gets 592.9 k points.
Summarizing, the i9-9900KF is 2 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 i9-9900KF gets 592.9 k points.
Summarizing, the i9-9900KF is 2 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
906ed
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
16386 kB
Date
September 2016
January 2019
Mean monothread perf.
76.9k points
84.54k points
Mean multithread perf.
289.82k points
592.86k points
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
i9-9900KF
Test#1 (Integers)
30.44k
33.03k (x1.08)
Test#2 (FP)
26.91k
29.52k (x1.1)
Test#3 (Generic, ZIP)
6.25k
6.55k (x1.05)
Test#1 (Memory)
13.3k
15.45k (x1.16)
TOTAL
76.9k
84.54k (x1.1)
Multithread
i7-7700K
i9-9900KF
Test#1 (Integers)
127.73k
276.22k (x2.16)
Test#2 (FP)
123.68k
250.61k (x2.03)
Test#3 (Generic, ZIP)
29.34k
57.2k (x1.95)
Test#1 (Memory)
9.08k
8.84k (x0.97)
TOTAL
289.82k
592.86k (x2.05)
Performance/W
i7-7700K
i9-9900KF
Test#1 (Integers)
1345 points/W
2908 points/W
Test#2 (FP)
1302 points/W
2638 points/W
Test#3 (Generic, ZIP)
309 points/W
602 points/W
Test#1 (Memory)
96 points/W
93 points/W
TOTAL
3051 points/W
6241 points/W
Performance/GHz
i7-7700K
i9-9900KF
Test#1 (Integers)
6765 points/GHz
6605 points/GHz
Test#2 (FP)
5981 points/GHz
5904 points/GHz
Test#3 (Generic, ZIP)
1388 points/GHz
1309 points/GHz
Test#1 (Memory)
2955 points/GHz
3090 points/GHz
TOTAL
17089 points/GHz
16909 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