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Core i9-10900KF vs i5-1235U


Description
The i9-10900KF is based on Comet Lake architecture while the i5-1235U is based on Alder Lake.

Using the multithread performance as a reference, the i9-10900KF gets a score of 825.5 k points while the i5-1235U gets 297.5 k points.

Summarizing, the i9-10900KF is 2.8 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
906a4
Core
Comet Lake-S
Alder Lake-U
Architecture
Base frecuency
3.7 GHz
3.3 GHz
Boost frecuency
5.2 GHz
4.4 GHz
Socket
LGA 1200
BGA 1700
Cores/Threads
10/20
10/12
TDP
125 W
15 W
Cache L1 (d+i)
10x32+10x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
10x256 kB
1x1280+4x2048 kB
Cache L3
20480 kB
12288 kB
Date
April 2020
April 2022
Mean monothread perf.
90.37k points
81.64k points
Mean multithread perf.
825.47k points
297.46k 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
i5-1235U
Test#1 (Integers)
35.87k
36.73k (x1.02)
Test#2 (FP)
31.43k
22.09k (x0.7)
Test#3 (Generic, ZIP)
7.34k
11.24k (x1.53)
Test#1 (Memory)
15.73k
11.58k (x0.74)
TOTAL
90.37k
81.64k (x0.9)

Multithread

i9-10900KF

i5-1235U
Test#1 (Integers)
377.56k
130.18k (x0.34)
Test#2 (FP)
347.59k
110.21k (x0.32)
Test#3 (Generic, ZIP)
88.08k
50.76k (x0.58)
Test#1 (Memory)
12.24k
6.31k (x0.52)
TOTAL
825.47k
297.46k (x0.36)

Performance/W
i9-10900KF
i5-1235U
Test#1 (Integers)
3020 points/W
8679 points/W
Test#2 (FP)
2781 points/W
7348 points/W
Test#3 (Generic, ZIP)
705 points/W
3384 points/W
Test#1 (Memory)
98 points/W
421 points/W
TOTAL
6604 points/W
19831 points/W

Performance/GHz
i9-10900KF
i5-1235U
Test#1 (Integers)
6898 points/GHz
8349 points/GHz
Test#2 (FP)
6044 points/GHz
5020 points/GHz
Test#3 (Generic, ZIP)
1411 points/GHz
2555 points/GHz
Test#1 (Memory)
3025 points/GHz
2631 points/GHz
TOTAL
17378 points/GHz
18555 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