Core i9-9900K vs i7-6700K
Description
The i9-9900K is based on Coffee Lake architecture while the i7-6700K is based on Skylake.
Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the i7-6700K gets 254.6 k points.
Summarizing, the i9-9900K is 2.1 times faster than the i7-6700K . 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 i7-6700K gets 254.6 k points.
Summarizing, the i9-9900K is 2.1 times faster than the i7-6700K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
506e3
Core
Coffee Lake-S
Skylake-S
Base frecuency
3.6 GHz
4 GHz
Boost frecuency
5 GHz
4.2 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
4/8
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x256 kB
256 kB
Cache L3
16384 kB
8192 kB
Date
October 2018
May 2015
Mean monothread perf.
81.91k points
63.22k points
Mean multithread perf.
529.32k points
254.56k 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
i7-6700K
Test#1 (Integers)
5k
4.07k (x0.82)
Test#2 (FP)
20.22k
16.62k (x0.82)
Test#3 (Generic, ZIP)
6.54k
5.23k (x0.8)
Test#1 (Memory)
13.78k
6.28k (x0.46)
TOTAL
45.53k
32.2k (x0.71)
Multithread
i9-9900K
i7-6700K
Test#1 (Integers)
36.39k
16.37k (x0.45)
Test#2 (FP)
166.55k
77.34k (x0.46)
Test#3 (Generic, ZIP)
54.92k
25.65k (x0.47)
Test#1 (Memory)
8.96k
10.21k (x1.14)
TOTAL
266.82k
129.57k (x0.49)
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i9-9900K
i7-6700K
Test#1 (Integers)
18.03k
14.73k (x0.82)
Test#2 (FP)
25.98k
21.27k (x0.82)
Test#3 (Generic, ZIP)
6.86k
5.52k (x0.8)
Test#1 (Memory)
14.5k
6.32k (x0.44)
TOTAL
65.37k
47.84k (x0.73)
Multithread
i9-9900K
i7-6700K
Test#1 (Integers)
131.34k
61.09k (x0.47)
Test#2 (FP)
204.76k
99.17k (x0.48)
Test#3 (Generic, ZIP)
55.74k
26.57k (x0.48)
Test#1 (Memory)
8.99k
10.26k (x1.14)
TOTAL
400.83k
197.09k (x0.49)
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
i7-6700K
Test#1 (Integers)
32.08k
25.78k (x0.8)
Test#2 (FP)
28.17k
23.08k (x0.82)
Test#3 (Generic, ZIP)
6.68k
5.32k (x0.8)
Test#1 (Memory)
14.98k
9.03k (x0.6)
TOTAL
81.91k
63.22k (x0.77)
Multithread
i9-9900K
i7-6700K
Test#1 (Integers)
242.98k
112.83k (x0.46)
Test#2 (FP)
220.16k
106.86k (x0.49)
Test#3 (Generic, ZIP)
53.97k
25.76k (x0.48)
Test#1 (Memory)
12.22k
9.12k (x0.75)
TOTAL
529.32k
254.56k (x0.48)
Performance/W
i9-9900K
i7-6700K
Test#1 (Integers)
2558 points/W
1188 points/W
Test#2 (FP)
2317 points/W
1125 points/W
Test#3 (Generic, ZIP)
568 points/W
271 points/W
Test#1 (Memory)
129 points/W
96 points/W
TOTAL
5572 points/W
2680 points/W
Performance/GHz
i9-9900K
i7-6700K
Test#1 (Integers)
6417 points/GHz
6139 points/GHz
Test#2 (FP)
5634 points/GHz
5495 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
1268 points/GHz
Test#1 (Memory)
2996 points/GHz
2150 points/GHz
TOTAL
16382 points/GHz
15052 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