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Core i9-10900K vs i9-9900K


Description
The i9-10900K is based on Comet Lake architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the i9-10900K gets a score of 685.6 k points while the i9-9900K gets 529.3 k points.

Summarizing, the i9-10900K is 1.3 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
906ed
Core
Comet Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
5.2 GHz
5 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
10/20
8/16
TDP
125 W
95 W
Cache L1 (d+i)
10x32+10x32 kB
8x32+8x32 kB
Cache L2
10x256 kB
8x256 kB
Cache L3
20480 kB
16384 kB
Date
April 2020
October 2018
Mean monothread perf.
80.41k points
81.91k points
Mean multithread perf.
685.65k points
529.32k points

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
i9-10900K
i9-9900K
Test#1 (Integers)
19.5k
18.03k (x0.92)
Test#2 (FP)
28.01k
25.98k (x0.93)
Test#3 (Generic, ZIP)
7.45k
6.86k (x0.92)
Test#1 (Memory)
15.82k
14.5k (x0.92)
TOTAL
70.79k
65.37k (x0.92)

Multithread

i9-10900K

i9-9900K
Test#1 (Integers)
194.49k
131.34k (x0.68)
Test#2 (FP)
312.59k
204.76k (x0.66)
Test#3 (Generic, ZIP)
89.14k
55.74k (x0.63)
Test#1 (Memory)
12.58k
8.99k (x0.71)
TOTAL
608.81k
400.83k (x0.66)

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
i9-9900K
Test#1 (Integers)
32.67k
32.08k (x0.98)
Test#2 (FP)
28.49k
28.17k (x0.99)
Test#3 (Generic, ZIP)
6.53k
6.68k (x1.02)
Test#1 (Memory)
12.72k
14.98k (x1.18)
TOTAL
80.41k
81.91k (x1.02)

Multithread

i9-10900K

i9-9900K
Test#1 (Integers)
307.39k
242.98k (x0.79)
Test#2 (FP)
298.47k
220.16k (x0.74)
Test#3 (Generic, ZIP)
72.94k
53.97k (x0.74)
Test#1 (Memory)
6.85k
12.22k (x1.78)
TOTAL
685.65k
529.32k (x0.77)

Performance/W
i9-10900K
i9-9900K
Test#1 (Integers)
2459 points/W
2558 points/W
Test#2 (FP)
2388 points/W
2317 points/W
Test#3 (Generic, ZIP)
583 points/W
568 points/W
Test#1 (Memory)
55 points/W
129 points/W
TOTAL
5485 points/W
5572 points/W

Performance/GHz
i9-10900K
i9-9900K
Test#1 (Integers)
6282 points/GHz
6417 points/GHz
Test#2 (FP)
5479 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
1257 points/GHz
1335 points/GHz
Test#1 (Memory)
2445 points/GHz
2996 points/GHz
TOTAL
15463 points/GHz
16382 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