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Core i7-9700K vs i7-6900K


Description
The i7-9700K is based on Coffee Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i7-9700K gets a score of 460 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i7-9700K is 1.1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
406f1
Core
Coffee Lake-S
Broadwell-E
Architecture
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
4.9 GHz
3.7 GHz
Socket
LGA 1151
LGA 2011-3
Cores/Threads
8/8
8/16
TDP
95 W
140 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x256 kB
Cache L3
12288 kB
20480 kB
Date
October 2018
September 2016
Mean monothread perf.
73.62k points
49.76k points
Mean multithread perf.
460.02k points
427.51k 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
i7-9700K
i7-6900K
Test#1 (Integers)
29.3k
23.11k (x0.79)
Test#2 (FP)
25.61k
17.84k (x0.7)
Test#3 (Generic, ZIP)
5.86k
5.34k (x0.91)
Test#1 (Memory)
12.86k
3.47k (x0.27)
TOTAL
73.62k
49.76k (x0.68)

Multithread

i7-9700K

i7-6900K
Test#1 (Integers)
217.77k
184.19k (x0.85)
Test#2 (FP)
190.46k
181.2k (x0.95)
Test#3 (Generic, ZIP)
40.48k
47.44k (x1.17)
Test#1 (Memory)
11.31k
14.69k (x1.3)
TOTAL
460.02k
427.51k (x0.93)

Performance/W
i7-9700K
i7-6900K
Test#1 (Integers)
2292 points/W
1316 points/W
Test#2 (FP)
2005 points/W
1294 points/W
Test#3 (Generic, ZIP)
426 points/W
339 points/W
Test#1 (Memory)
119 points/W
105 points/W
TOTAL
4842 points/W
3054 points/W

Performance/GHz
i7-9700K
i7-6900K
Test#1 (Integers)
5981 points/GHz
6247 points/GHz
Test#2 (FP)
5226 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
1195 points/GHz
1444 points/GHz
Test#1 (Memory)
2624 points/GHz
938 points/GHz
TOTAL
15025 points/GHz
13450 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4