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Core i9-10900K vs i7-7700K


Description
The i9-10900K is based on Comet Lake architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the i9-10900K gets a score of 685.6 k points while the i7-7700K gets 289.8 k points.

Summarizing, the i9-10900K is 2.4 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
906e9
Core
Comet Lake-S
Kaby Lake-S
Architecture
Base frecuency
3.7 GHz
4.2 GHz
Boost frecuency
5.2 GHz
4.5 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
10/20
4/8
TDP
125 W
95 W
Cache L1 (d+i)
10x32+10x32 kB
32+32 kB
Cache L2
10x256 kB
256 kB
Cache L3
20480 kB
8192 kB
Date
April 2020
September 2016
Mean monothread perf.
80.41k points
76.9k points
Mean multithread perf.
685.65k points
289.82k 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
i9-10900K
i7-7700K
Test#1 (Integers)
32.67k
30.44k (x0.93)
Test#2 (FP)
28.49k
26.91k (x0.94)
Test#3 (Generic, ZIP)
6.53k
6.25k (x0.96)
Test#1 (Memory)
12.72k
13.3k (x1.05)
TOTAL
80.41k
76.9k (x0.96)

Multithread

i9-10900K

i7-7700K
Test#1 (Integers)
307.39k
127.73k (x0.42)
Test#2 (FP)
298.47k
123.68k (x0.41)
Test#3 (Generic, ZIP)
72.94k
29.34k (x0.4)
Test#1 (Memory)
6.85k
9.08k (x1.32)
TOTAL
685.65k
289.82k (x0.42)

Performance/W
i9-10900K
i7-7700K
Test#1 (Integers)
2459 points/W
1345 points/W
Test#2 (FP)
2388 points/W
1302 points/W
Test#3 (Generic, ZIP)
583 points/W
309 points/W
Test#1 (Memory)
55 points/W
96 points/W
TOTAL
5485 points/W
3051 points/W

Performance/GHz
i9-10900K
i7-7700K
Test#1 (Integers)
6282 points/GHz
6765 points/GHz
Test#2 (FP)
5479 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1257 points/GHz
1388 points/GHz
Test#1 (Memory)
2445 points/GHz
2955 points/GHz
TOTAL
15463 points/GHz
17089 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