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 529.3 k points while the i7-7700K gets 289.9 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 i9-9900K gets a score of 529.3 k points while the i7-7700K gets 289.9 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
906ed
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.
81.91k points
76.98k points
Mean multithread perf.
529.32k 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)
5k
4.63k (x0.93)
Test#2 (FP)
20.22k
18.92k (x0.94)
Test#3 (Generic, ZIP)
6.54k
6.22k (x0.95)
Test#1 (Memory)
13.78k
13.92k (x1.01)
TOTAL
45.53k
43.7k (x0.96)
Multithread
i9-9900K
i7-7700K
Test#1 (Integers)
36.39k
18.53k (x0.51)
Test#2 (FP)
166.55k
86.49k (x0.52)
Test#3 (Generic, ZIP)
54.92k
28.78k (x0.52)
Test#1 (Memory)
8.96k
9.67k (x1.08)
TOTAL
266.82k
143.47k (x0.54)
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
i9-9900K
i7-7700K
Test#1 (Integers)
17.98k
17.55k (x0.98)
Test#2 (FP)
27.04k
27.82k (x1.03)
Test#3 (Generic, ZIP)
6.63k
6.8k (x1.03)
Test#1 (Memory)
13.6k
14.83k (x1.09)
TOTAL
65.24k
67k (x1.03)
Multithread
i9-9900K
i7-7700K
Test#1 (Integers)
130.88k
68.4k (x0.52)
Test#2 (FP)
208.5k
118.8k (x0.57)
Test#3 (Generic, ZIP)
54.12k
33.34k (x0.62)
Test#1 (Memory)
8.91k
17.43k (x1.96)
TOTAL
402.41k
237.97k (x0.59)
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)
32.08k
30.47k (x0.95)
Test#2 (FP)
28.17k
26.94k (x0.96)
Test#3 (Generic, ZIP)
6.68k
6.25k (x0.94)
Test#1 (Memory)
14.98k
13.32k (x0.89)
TOTAL
81.91k
76.98k (x0.94)
Multithread
i9-9900K
i7-7700K
Test#1 (Integers)
242.98k
127.81k (x0.53)
Test#2 (FP)
220.16k
123.7k (x0.56)
Test#3 (Generic, ZIP)
53.97k
29.34k (x0.54)
Test#1 (Memory)
12.22k
9.05k (x0.74)
TOTAL
529.32k
289.9k (x0.55)
Performance/W
i9-9900K
i7-7700K
Test#1 (Integers)
2558 points/W
1345 points/W
Test#2 (FP)
2317 points/W
1302 points/W
Test#3 (Generic, ZIP)
568 points/W
309 points/W
Test#1 (Memory)
129 points/W
95 points/W
TOTAL
5572 points/W
3052 points/W
Performance/GHz
i9-9900K
i7-7700K
Test#1 (Integers)
6417 points/GHz
6770 points/GHz
Test#2 (FP)
5634 points/GHz
5987 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
1389 points/GHz
Test#1 (Memory)
2996 points/GHz
2960 points/GHz
TOTAL
16382 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