Core i9-9900K vs i7-7700K
Description
The i9-9900K is based on Coffee Lake architecture while the i7-7700K is based on Kaby Lake.
Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i7-7700K gets 289.9 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 i9-9900K gets a score of 545.3 k points while the i7-7700K gets 289.9 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
906ec
906e9
Core
Coffee Lake-S
Kaby Lake-S
Base frecuency
3.6 GHz
4.2 GHz
Boost frecuency
5 GHz
4.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
4/8
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
32+32 kB
Cache L2
8x256 kB
256 kB
Cache L3
16384 kB
8192 kB
Date
October 2018
September 2016
Mean monothread perf.
86.24k points
76.98k points
Mean multithread perf.
545.3k 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
i9-9900K
i7-7700K
Test#1 (Integers)
5.17k
4.63k (x0.9)
Test#2 (FP)
21.15k
18.92k (x0.89)
Test#3 (Generic, ZIP)
7.01k
6.22k (x0.89)
Test#1 (Memory)
15.32k
13.92k (x0.91)
TOTAL
48.66k
43.7k (x0.9)
Multithread
i9-9900K
i7-7700K
Test#1 (Integers)
38.45k
18.53k (x0.48)
Test#2 (FP)
155.68k
86.49k (x0.56)
Test#3 (Generic, ZIP)
51k
28.78k (x0.56)
Test#1 (Memory)
18.26k
9.67k (x0.53)
TOTAL
263.38k
143.47k (x0.54)
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
i9-9900K
i7-7700K
Test#1 (Integers)
33.62k
30.47k (x0.91)
Test#2 (FP)
30.02k
26.94k (x0.9)
Test#3 (Generic, ZIP)
7.17k
6.25k (x0.87)
Test#1 (Memory)
15.43k
13.32k (x0.86)
TOTAL
86.24k
76.98k (x0.89)
Multithread
i9-9900K
i7-7700K
Test#1 (Integers)
248.93k
127.81k (x0.51)
Test#2 (FP)
224.43k
123.7k (x0.55)
Test#3 (Generic, ZIP)
53.39k
29.34k (x0.55)
Test#1 (Memory)
18.54k
9.05k (x0.49)
TOTAL
545.3k
289.9k (x0.53)
Performance/W
i9-9900K
i7-7700K
Test#1 (Integers)
2620 points/W
1345 points/W
Test#2 (FP)
2362 points/W
1302 points/W
Test#3 (Generic, ZIP)
562 points/W
309 points/W
Test#1 (Memory)
195 points/W
95 points/W
TOTAL
5740 points/W
3052 points/W
Performance/GHz
i9-9900K
i7-7700K
Test#1 (Integers)
6724 points/GHz
6770 points/GHz
Test#2 (FP)
6003 points/GHz
5987 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
1389 points/GHz
Test#1 (Memory)
3087 points/GHz
2960 points/GHz
TOTAL
17247 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