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 289.9 k points while the i9-9900K gets 529.3 k points.
Summarizing, the i9-9900K is 1.8 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 289.9 k points while the i9-9900K gets 529.3 k points.
Summarizing, the i9-9900K is 1.8 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
16384 kB
Date
September 2016
October 2018
Mean monothread perf.
76.98k points
81.91k points
Mean multithread perf.
289.9k points
529.32k 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
5k (x1.08)
Test#2 (FP)
18.92k
20.22k (x1.07)
Test#3 (Generic, ZIP)
6.22k
6.54k (x1.05)
Test#1 (Memory)
13.92k
13.78k (x0.99)
TOTAL
43.7k
45.53k (x1.04)
Multithread
i7-7700K
i9-9900K
Test#1 (Integers)
18.53k
36.39k (x1.96)
Test#2 (FP)
86.49k
166.55k (x1.93)
Test#3 (Generic, ZIP)
28.78k
54.92k (x1.91)
Test#1 (Memory)
9.67k
8.96k (x0.93)
TOTAL
143.47k
266.82k (x1.86)
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
i7-7700K
i9-9900K
Test#1 (Integers)
17.55k
17.98k (x1.02)
Test#2 (FP)
27.82k
27.04k (x0.97)
Test#3 (Generic, ZIP)
6.8k
6.63k (x0.98)
Test#1 (Memory)
14.83k
13.6k (x0.92)
TOTAL
67k
65.24k (x0.97)
Multithread
i7-7700K
i9-9900K
Test#1 (Integers)
68.4k
130.88k (x1.91)
Test#2 (FP)
118.8k
208.5k (x1.75)
Test#3 (Generic, ZIP)
33.34k
54.12k (x1.62)
Test#1 (Memory)
17.43k
8.91k (x0.51)
TOTAL
237.97k
402.41k (x1.69)
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)
30.47k
32.08k (x1.05)
Test#2 (FP)
26.94k
28.17k (x1.05)
Test#3 (Generic, ZIP)
6.25k
6.68k (x1.07)
Test#1 (Memory)
13.32k
14.98k (x1.12)
TOTAL
76.98k
81.91k (x1.06)
Multithread
i7-7700K
i9-9900K
Test#1 (Integers)
127.81k
242.98k (x1.9)
Test#2 (FP)
123.7k
220.16k (x1.78)
Test#3 (Generic, ZIP)
29.34k
53.97k (x1.84)
Test#1 (Memory)
9.05k
12.22k (x1.35)
TOTAL
289.9k
529.32k (x1.83)
Performance/W
i7-7700K
i9-9900K
Test#1 (Integers)
1345 points/W
2558 points/W
Test#2 (FP)
1302 points/W
2317 points/W
Test#3 (Generic, ZIP)
309 points/W
568 points/W
Test#1 (Memory)
95 points/W
129 points/W
TOTAL
3052 points/W
5572 points/W
Performance/GHz
i7-7700K
i9-9900K
Test#1 (Integers)
6770 points/GHz
6417 points/GHz
Test#2 (FP)
5987 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
1389 points/GHz
1335 points/GHz
Test#1 (Memory)
2960 points/GHz
2996 points/GHz
TOTAL
17106 points/GHz
16382 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