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Core i9-10900KF vs i7-6900K


Description
The i9-10900KF is based on Comet Lake architecture while the i7-6900K is based on Broadwell.

Using the multithread performance as a reference, the i9-10900KF gets a score of 825.5 k points while the i7-6900K gets 427.5 k points.

Summarizing, the i9-10900KF is 1.9 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
406f1
Core
Comet Lake-S
Broadwell-E
Architecture
Base frecuency
3.7 GHz
3.2 GHz
Boost frecuency
5.2 GHz
3.7 GHz
Socket
LGA 1200
LGA 2011-3
Cores/Threads
10/20
8/16
TDP
125 W
140 W
Cache L1 (d+i)
10x32+10x32 kB
8x32+8x32 kB
Cache L2
10x256 kB
8x256 kB
Cache L3
20480 kB
20480 kB
Date
April 2020
September 2016
Mean monothread perf.
90.37k points
49.76k points
Mean multithread perf.
825.47k 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
i9-10900KF
i7-6900K
Test#1 (Integers)
35.87k
23.11k (x0.64)
Test#2 (FP)
31.43k
17.84k (x0.57)
Test#3 (Generic, ZIP)
7.34k
5.34k (x0.73)
Test#1 (Memory)
15.73k
3.47k (x0.22)
TOTAL
90.37k
49.76k (x0.55)

Multithread

i9-10900KF

i7-6900K
Test#1 (Integers)
377.56k
184.19k (x0.49)
Test#2 (FP)
347.59k
181.2k (x0.52)
Test#3 (Generic, ZIP)
88.08k
47.44k (x0.54)
Test#1 (Memory)
12.24k
14.69k (x1.2)
TOTAL
825.47k
427.51k (x0.52)

Performance/W
i9-10900KF
i7-6900K
Test#1 (Integers)
3020 points/W
1316 points/W
Test#2 (FP)
2781 points/W
1294 points/W
Test#3 (Generic, ZIP)
705 points/W
339 points/W
Test#1 (Memory)
98 points/W
105 points/W
TOTAL
6604 points/W
3054 points/W

Performance/GHz
i9-10900KF
i7-6900K
Test#1 (Integers)
6898 points/GHz
6247 points/GHz
Test#2 (FP)
6044 points/GHz
4822 points/GHz
Test#3 (Generic, ZIP)
1411 points/GHz
1444 points/GHz
Test#1 (Memory)
3025 points/GHz
938 points/GHz
TOTAL
17378 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